Overcast
Feels like 16°C
Wind direction south
Gusts 14 km/h
Humidity 88%
Cloud cover 100%
Pressure 1019 hPa
Now · 8:38 AM
Cardiff Weather & Hourly Forecast
United Kingdom · Wales
16°C
Light rain
Feels like: 16°C
💧 Humidity 89%
🌡 Pressure 1019 hPa
💨 Wind 12 km/h
👁 Visibility 10.0 km
☁ Clouds 100%
☀️ UV index 0.0 · Low
🌅 Sunrise 6:26 AM
🌇 Sunset 7:58 PM
Hourly Forecast for Cardiff
Today
Overcast
Light rain
Feels like 17°C
Wind direction southwest
Gusts 35 km/h
Humidity 88%
Cloud cover 100%
Pressure 1018 hPa
Light rain
Feels like 20°C
Wind direction southwest
Gusts 42 km/h
Humidity 84%
Cloud cover 98%
Pressure 1017 hPa
Overcast
Feels like 21°C
Wind direction west
Gusts 48 km/h
Humidity 87%
Cloud cover 86%
Pressure 1016 hPa
Overcast night
Feels like 19°C
Wind direction west
Gusts 45 km/h
Humidity 86%
Cloud cover 93%
Pressure 1017 hPa
Tomorrow
Overcast night
Feels like 20°C
Wind direction southwest
Gusts 47 km/h
Humidity 92%
Cloud cover 96%
Pressure 1017 hPa
Light rain
Feels like 20°C
Wind direction west
Gusts 48 km/h
Humidity 93%
Cloud cover 100%
Pressure 1017 hPa
Overcast night
Feels like 18°C
Wind direction west
Gusts 46 km/h
Humidity 90%
Cloud cover 86%
Pressure 1017 hPa
Mostly cloudy
Feels like 21°C
Wind direction west
Gusts 37 km/h
Humidity 87%
Cloud cover 68%
Pressure 1018 hPa
Mostly cloudy
Feels like 23°C
Wind direction west
Gusts 40 km/h
Humidity 73%
Cloud cover 84%
Pressure 1018 hPa
Light rain
Feels like 23°C
Wind direction west
Gusts 46 km/h
Humidity 89%
Cloud cover 88%
Pressure 1017 hPa
Overcast
Feels like 22°C
Wind direction west
Gusts 48 km/h
Humidity 85%
Cloud cover 94%
Pressure 1016 hPa
Overcast night
Feels like 18°C
Wind direction west
Gusts 54 km/h
Humidity 91%
Cloud cover 95%
Pressure 1016 hPa
Friday
Overcast night
Feels like 19°C
Wind direction southwest
Gusts 54 km/h
Humidity 89%
Cloud cover 94%
Pressure 1014 hPa
Light rain
Feels like 19°C
Wind direction southwest
Gusts 67 km/h
Humidity 93%
Cloud cover 100%
Pressure 1012 hPa
Light rain
Feels like 16°C
Wind direction west
Gusts 43 km/h
Humidity 93%
Cloud cover 100%
Pressure 1013 hPa
Today
Overcast
Feels like 16°C
Wind direction southGusts 14 km/h
Humidity 88%Cloud cover 100%Pressure 1019 hPa
Overcast
Feels like 16°C
Wind direction southGusts 24 km/h
Humidity 87%Cloud cover 100%Pressure 1019 hPa
Light rain
Feels like 17°C
Wind direction southGusts 33 km/h
Humidity 87%Cloud cover 100%Pressure 1019 hPa
Light rain
Feels like 17°C
Wind direction southwestGusts 35 km/h
Humidity 88%Cloud cover 100%Pressure 1018 hPa
Light rain
Feels like 18°C
Wind direction southwestGusts 41 km/h
Humidity 88%Cloud cover 100%Pressure 1018 hPa
Overcast
Feels like 20°C
Wind direction southwestGusts 44 km/h
Humidity 85%Cloud cover 96%Pressure 1017 hPa
Light rain
Feels like 20°C
Wind direction southwestGusts 42 km/h
Humidity 84%Cloud cover 98%Pressure 1017 hPa
Light rain
Feels like 22°C
Wind direction southwestGusts 42 km/h
Humidity 83%Cloud cover 99%Pressure 1016 hPa
Overcast
Feels like 21°C
Wind direction westGusts 46 km/h
Humidity 82%Cloud cover 95%Pressure 1016 hPa
Overcast
Feels like 21°C
Wind direction westGusts 48 km/h
Humidity 87%Cloud cover 86%Pressure 1016 hPa
Overcast
Feels like 20°C
Wind direction westGusts 47 km/h
Humidity 89%Cloud cover 85%Pressure 1017 hPa
Overcast night
Feels like 20°C
Wind direction westGusts 47 km/h
Humidity 91%Cloud cover 86%Pressure 1017 hPa
Overcast night
Feels like 19°C
Wind direction westGusts 45 km/h
Humidity 86%Cloud cover 93%Pressure 1017 hPa
Overcast night
Feels like 20°C
Wind direction westGusts 44 km/h
Humidity 86%Cloud cover 95%Pressure 1018 hPa
Overcast night
Feels like 20°C
Wind direction southwestGusts 44 km/h
Humidity 91%Cloud cover 95%Pressure 1018 hPa
Tomorrow
Overcast night
Feels like 20°C
Wind direction southwestGusts 47 km/h
Humidity 92%Cloud cover 96%Pressure 1017 hPa
Overcast night
Feels like 20°C
Wind direction southwestGusts 49 km/h
Humidity 95%Cloud cover 97%Pressure 1017 hPa
Overcast night
Feels like 20°C
Wind direction southwestGusts 50 km/h
Humidity 96%Cloud cover 100%Pressure 1017 hPa
Light rain
Feels like 20°C
Wind direction westGusts 48 km/h
Humidity 93%Cloud cover 100%Pressure 1017 hPa
Overcast night
Feels like 19°C
Wind direction westGusts 44 km/h
Humidity 92%Cloud cover 100%Pressure 1017 hPa
Overcast night
Feels like 19°C
Wind direction westGusts 44 km/h
Humidity 92%Cloud cover 100%Pressure 1017 hPa
Overcast night
Feels like 18°C
Wind direction westGusts 46 km/h
Humidity 90%Cloud cover 86%Pressure 1017 hPa
Mostly cloudy
Feels like 18°C
Wind direction westGusts 45 km/h
Humidity 91%Cloud cover 77%Pressure 1018 hPa
Partly cloudy
Feels like 18°C
Wind direction westGusts 40 km/h
Humidity 89%Cloud cover 42%Pressure 1018 hPa
Mostly cloudy
Feels like 21°C
Wind direction westGusts 37 km/h
Humidity 87%Cloud cover 68%Pressure 1018 hPa
Mostly cloudy
Feels like 22°C
Wind direction westGusts 37 km/h
Humidity 80%Cloud cover 72%Pressure 1018 hPa
Mostly cloudy
Feels like 23°C
Wind direction westGusts 40 km/h
Humidity 75%Cloud cover 79%Pressure 1018 hPa
Mostly cloudy
Feels like 23°C
Wind direction westGusts 40 km/h
Humidity 73%Cloud cover 84%Pressure 1018 hPa
Overcast
Feels like 24°C
Wind direction westGusts 40 km/h
Humidity 74%Cloud cover 86%Pressure 1018 hPa
Mostly cloudy
Feels like 25°C
Wind direction southwestGusts 42 km/h
Humidity 77%Cloud cover 83%Pressure 1017 hPa
Light rain
Feels like 23°C
Wind direction westGusts 46 km/h
Humidity 89%Cloud cover 88%Pressure 1017 hPa
Overcast
Feels like 23°C
Wind direction westGusts 51 km/h
Humidity 86%Cloud cover 91%Pressure 1017 hPa
Overcast
Feels like 23°C
Wind direction westGusts 52 km/h
Humidity 83%Cloud cover 92%Pressure 1017 hPa
Overcast
Feels like 22°C
Wind direction westGusts 48 km/h
Humidity 85%Cloud cover 94%Pressure 1016 hPa
Overcast
Feels like 21°C
Wind direction westGusts 47 km/h
Humidity 82%Cloud cover 94%Pressure 1016 hPa
Overcast night
Feels like 19°C
Wind direction westGusts 52 km/h
Humidity 85%Cloud cover 89%Pressure 1016 hPa
Overcast night
Feels like 18°C
Wind direction westGusts 54 km/h
Humidity 91%Cloud cover 95%Pressure 1016 hPa
Overcast night
Feels like 18°C
Wind direction westGusts 51 km/h
Humidity 91%Cloud cover 92%Pressure 1016 hPa
Overcast night
Feels like 19°C
Wind direction southwestGusts 52 km/h
Humidity 90%Cloud cover 94%Pressure 1015 hPa
Friday
Overcast night
Feels like 19°C
Wind direction southwestGusts 54 km/h
Humidity 89%Cloud cover 94%Pressure 1014 hPa
Overcast night
Feels like 20°C
Wind direction southwestGusts 58 km/h
Humidity 90%Cloud cover 93%Pressure 1013 hPa
Light rain
Feels like 20°C
Wind direction southwestGusts 66 km/h
Humidity 87%Cloud cover 100%Pressure 1013 hPa
Light rain
Feels like 19°C
Wind direction southwestGusts 67 km/h
Humidity 93%Cloud cover 100%Pressure 1012 hPa
Light rain
Feels like 19°C
Wind direction southwestGusts 65 km/h
Humidity 94%Cloud cover 100%Pressure 1012 hPa
Light rain
Feels like 18°C
Wind direction westGusts 53 km/h
Humidity 92%Cloud cover 100%Pressure 1012 hPa
Light rain
Feels like 16°C
Wind direction westGusts 43 km/h
Humidity 93%Cloud cover 100%Pressure 1013 hPa
Light rain
Feels like 16°C
Wind direction westGusts 37 km/h
Humidity 93%Cloud cover 100%Pressure 1014 hPa
Light rain
Feels like 16°C
Wind direction westGusts 31 km/h
Humidity 92%Cloud cover 100%Pressure 1014 hPa
Light rain
Feels like 15°C
Wind direction northwestGusts 30 km/h
Humidity 87%Cloud cover 100%Pressure 1015 hPa
Overcast
Feels like 16°C
Wind direction westGusts 30 km/h
Humidity 86%Cloud cover 100%Pressure 1016 hPa
Overcast
Feels like 17°C
Wind direction westGusts 30 km/h
Humidity 76%Cloud cover 99%Pressure 1016 hPa
Overcast
Feels like 18°C
Wind direction westGusts 34 km/h
Humidity 60%Cloud cover 97%Pressure 1017 hPa
Overcast
Feels like 18°C
Wind direction westGusts 34 km/h
Humidity 57%Cloud cover 97%Pressure 1017 hPa
Overcast
Feels like 18°C
Wind direction westGusts 35 km/h
Humidity 58%Cloud cover 99%Pressure 1018 hPa
Overcast
Feels like 18°C
Wind direction westGusts 35 km/h
Humidity 57%Cloud cover 100%Pressure 1018 hPa
Overcast
Feels like 18°C
Wind direction westGusts 35 km/h
Humidity 56%Cloud cover 100%Pressure 1018 hPa
Overcast
Feels like 17°C
Wind direction westGusts 33 km/h
Humidity 56%Cloud cover 100%Pressure 1019 hPa
Overcast
Feels like 17°C
Wind direction westGusts 32 km/h
Humidity 61%Cloud cover 100%Pressure 1019 hPa
Overcast
Feels like 16°C
Wind direction westGusts 32 km/h
Humidity 63%Cloud cover 100%Pressure 1020 hPa
Overcast night
Feels like 14°C
Wind direction westGusts 30 km/h
Humidity 67%Cloud cover 100%Pressure 1021 hPa
Overcast night
Feels like 13°C
Wind direction westGusts 25 km/h
Humidity 72%Cloud cover 100%Pressure 1021 hPa
Overcast night
Feels like 13°C
Wind direction westGusts 23 km/h
Humidity 75%Cloud cover 100%Pressure 1022 hPa
Overcast night
Feels like 13°C
Wind direction westGusts 20 km/h
Humidity 78%Cloud cover 99%Pressure 1022 hPa
Saturday
Overcast night
Feels like 13°C
Wind direction westGusts 16 km/h
Humidity 79%Cloud cover 99%Pressure 1023 hPa
Overcast night
Feels like 12°C
Wind direction westGusts 17 km/h
Humidity 80%Cloud cover 99%Pressure 1023 hPa
Overcast night
Feels like 11°C
Wind direction northwestGusts 16 km/h
Humidity 82%Cloud cover 100%Pressure 1023 hPa
Overcast night
Feels like 11°C
Wind direction northwestGusts 14 km/h
Humidity 84%Cloud cover 98%Pressure 1024 hPa
Mostly cloudy night
Feels like 10°C
Wind direction northwestGusts 12 km/h
Humidity 86%Cloud cover 74%Pressure 1024 hPa
Mostly cloudy night
Feels like 10°C
Wind direction northwestGusts 10 km/h
Humidity 86%Cloud cover 63%Pressure 1024 hPa
Mostly cloudy night
Feels like 10°C
Wind direction northwestGusts 10 km/h
Humidity 86%Cloud cover 62%Pressure 1025 hPa
Mostly cloudy
Feels like 10°C
Wind direction northwestGusts 10 km/h
Humidity 87%Cloud cover 64%Pressure 1025 hPa
Mostly cloudy
Feels like 12°C
Wind direction northwestGusts 12 km/h
Humidity 81%Cloud cover 64%Pressure 1026 hPa
Partly cloudy
Feels like 14°C
Wind direction northwestGusts 13 km/h
Humidity 73%Cloud cover 47%Pressure 1026 hPa
Partly cloudy
Feels like 15°C
Wind direction westGusts 14 km/h
Humidity 65%Cloud cover 44%Pressure 1026 hPa
Partly cloudy
Feels like 16°C
Wind direction westGusts 13 km/h
Humidity 59%Cloud cover 47%Pressure 1027 hPa
Mostly cloudy
Feels like 17°C
Wind direction westGusts 13 km/h
Humidity 55%Cloud cover 58%Pressure 1027 hPa
Mostly cloudy
Feels like 17°C
Wind direction southwestGusts 16 km/h
Humidity 54%Cloud cover 62%Pressure 1027 hPa
Mostly cloudy
Feels like 17°C
Wind direction westGusts 16 km/h
Humidity 53%Cloud cover 56%Pressure 1027 hPa
Mostly cloudy
Feels like 17°C
Wind direction westGusts 17 km/h
Humidity 51%Cloud cover 75%Pressure 1027 hPa
Mostly cloudy
Feels like 17°C
Wind direction westGusts 17 km/h
Humidity 52%Cloud cover 81%Pressure 1026 hPa
Mostly cloudy
Feels like 17°C
Wind direction westGusts 17 km/h
Humidity 54%Cloud cover 84%Pressure 1026 hPa
Overcast
Feels like 17°C
Wind direction westGusts 16 km/h
Humidity 57%Cloud cover 85%Pressure 1026 hPa
Mostly cloudy
Feels like 15°C
Wind direction westGusts 16 km/h
Humidity 65%Cloud cover 75%Pressure 1026 hPa
Mostly clear night
Feels like 13°C
Wind direction westGusts 10 km/h
Humidity 71%Cloud cover 12%Pressure 1026 hPa
Clear night
Feels like 13°C
Wind direction westGusts 8 km/h
Humidity 73%Cloud cover 10%Pressure 1027 hPa
Clear night
Feels like 12°C
Wind direction westGusts 6 km/h
Humidity 73%Cloud cover 10%Pressure 1027 hPa
Clear night
Feels like 12°C
Wind direction northwestGusts 5 km/h
Humidity 73%Cloud cover 10%Pressure 1026 hPa
Sunday
Mostly clear night
Feels like 12°C
Wind direction northwestGusts 4 km/h
Humidity 72%Cloud cover 12%Pressure 1026 hPa
Mostly clear night
Feels like 12°C
Wind direction northeastGusts 3 km/h
Humidity 70%Cloud cover 24%Pressure 1026 hPa
Overcast night
Feels like 12°C
Wind direction eastGusts 3 km/h
Humidity 70%Cloud cover 99%Pressure 1025 hPa
Overcast night
Feels like 12°C
Wind direction southeastGusts 5 km/h
Humidity 72%Cloud cover 100%Pressure 1025 hPa
Overcast night
Feels like 12°C
Wind direction eastGusts 5 km/h
Humidity 73%Cloud cover 100%Pressure 1024 hPa
Overcast night
Feels like 12°C
Wind direction southeastGusts 6 km/h
Humidity 73%Cloud cover 100%Pressure 1024 hPa
Overcast night
Feels like 12°C
Wind direction southeastGusts 7 km/h
Humidity 73%Cloud cover 100%Pressure 1024 hPa
Overcast
Feels like 12°C
Wind direction southeastGusts 8 km/h
Humidity 72%Cloud cover 100%Pressure 1023 hPa
In Cardiff and, more broadly, across Cardiff: This morning, the sky will be mostly cloudy with mild temperatures ranging from 17 to 21 degrees Celsius. There is a high chance of rain throughout the day, with possible accumulations around 1.3 mm. Winds will be moderate from the southwest, reaching up to 18 mph, with gusts up to 29 mph. During the afternoon, the cloudy conditions are expected to persist, and the risk of rain remains significant. Temperatures are likely to stay within the same mild range, and the wind will continue from the southwest at similar speeds. Overall, the weather will be quite unsettled, with the possibility of light rain and breezy conditions lasting into the evening.
15-Day Weather Outlook for Cardiff
TomorrowTomorrow
Light rain
24°/18°
💧 0.3 mm
💨 35 km/h
Light rain
24°/18°
💧 0.3 mm
💨 35 km/h
Daytime temperature 23°C
Feels like 24°C
Humidity 74%
Pressure 1018 hPa
Cloud cover 86%
Wind direction west
Gusts 54 km/h
Sunrise 6:28 AM
Sunset 7:56 PM
Friday, Sep 4Fri Sep 4
Light rain
20°/13°
💧 2.7 mm
💨 42 km/h
Light rain
20°/13°
💧 2.7 mm
💨 42 km/h
Daytime temperature 19°C
Feels like 18°C
Humidity 57%
Pressure 1017 hPa
Cloud cover 97%
Wind direction southwest
Gusts 67 km/h
Sunrise 6:30 AM
Sunset 7:54 PM
Saturday, Sep 5Sat Sep 5
Mostly cloudy
18°/11°
💧 None
💨 17 km/h
Mostly cloudy
18°/11°
💧 None
💨 17 km/h
Daytime temperature 18°C
Feels like 17°C
Humidity 54%
Pressure 1027 hPa
Cloud cover 62%
Wind direction west
Gusts 17 km/h
Sunrise 6:31 AM
Sunset 7:51 PM
Sunday, Sep 6Sun Sep 6
Overcast
21°/13°
💧 None
💨 19 km/h
Overcast
21°/13°
💧 None
💨 19 km/h
Daytime temperature 21°C
Feels like 21°C
Humidity 43%
Pressure 1021 hPa
Cloud cover 97%
Wind direction south
Gusts 28 km/h
Sunrise 6:33 AM
Sunset 7:49 PM
Monday, Sep 7Mon Sep 7
Overcast
20°/15°
💧 None
💨 30 km/h
Overcast
20°/15°
💧 None
💨 30 km/h
Daytime temperature 20°C
Feels like 20°C
Humidity 63%
Pressure 1019 hPa
Cloud cover 94%
Wind direction west
Gusts 40 km/h
Sunrise 6:34 AM
Sunset 7:47 PM
Tuesday, Sep 8Tue Sep 8
Light rain
19°/15°
💧 1.5 mm
💨 33 km/h
Light rain
19°/15°
💧 1.5 mm
💨 33 km/h
Daytime temperature 19°C
Feels like 19°C
Humidity 66%
Pressure 1016 hPa
Cloud cover 99%
Wind direction west
Gusts 42 km/h
Sunrise 6:36 AM
Sunset 7:44 PM
Wednesday, Sep 9Wed Sep 9
Moderate rain
17°/11°
💧 8.5 mm
💨 30 km/h
Moderate rain
17°/11°
💧 8.5 mm
💨 30 km/h
Daytime temperature 17°C
Feels like 16°C
Humidity 48%
Pressure 1013 hPa
Cloud cover 10%
Wind direction northwest
Gusts 36 km/h
Sunrise 6:37 AM
Sunset 7:42 PM
Thursday, Sep 10Thu Sep 10
Overcast
17°/10°
💧 None
💨 21 km/h
Overcast
17°/10°
💧 None
💨 21 km/h
Daytime temperature 17°C
Feels like 16°C
Humidity 61%
Pressure 1017 hPa
Cloud cover 100%
Wind direction west
Gusts 27 km/h
Sunrise 6:39 AM
Sunset 7:40 PM
Friday, Sep 11Fri Sep 11
Light rain
19°/14°
💧 2.1 mm
💨 31 km/h
Light rain
19°/14°
💧 2.1 mm
💨 31 km/h
Daytime temperature 19°C
Feels like 19°C
Humidity 85%
Pressure 1010 hPa
Cloud cover 100%
Wind direction west
Gusts 45 km/h
Sunrise 6:41 AM
Sunset 7:38 PM
Saturday, Sep 12Sat Sep 12
Light rain
20°/14°
💧 1.9 mm
💨 28 km/h
Light rain
20°/14°
💧 1.9 mm
💨 28 km/h
Daytime temperature 20°C
Feels like 19°C
Humidity 61%
Pressure 1016 hPa
Cloud cover 69%
Wind direction northwest
Gusts 46 km/h
Sunrise 6:42 AM
Sunset 7:35 PM
Sunday, Sep 13Sun Sep 13
Mostly sunny
18°/11°
💧 None
💨 11 km/h
Mostly sunny
18°/11°
💧 None
💨 11 km/h
Daytime temperature 17°C
Feels like 16°C
Humidity 63%
Pressure 1030 hPa
Cloud cover 14%
Wind direction northeast
Gusts 11 km/h
Sunrise 6:44 AM
Sunset 7:33 PM
Monday, Sep 14Mon Sep 14
Light rain
20°/14°
💧 2.5 mm
💨 21 km/h
Light rain
20°/14°
💧 2.5 mm
💨 21 km/h
Daytime temperature 17°C
Feels like 17°C
Humidity 86%
Pressure 1029 hPa
Cloud cover 100%
Wind direction west
Gusts 28 km/h
Sunrise 6:45 AM
Sunset 7:31 PM
Tuesday, Sep 15Tue Sep 15
Light rain
19°/12°
💧 0.8 mm
💨 15 km/h
Light rain
19°/12°
💧 0.8 mm
💨 15 km/h
Daytime temperature 19°C
Feels like 19°C
Humidity 83%
Pressure 1025 hPa
Cloud cover 60%
Wind direction northeast
Gusts 22 km/h
Sunrise 6:47 AM
Sunset 7:28 PM
Wednesday, Sep 16Wed Sep 16
Overcast
17°/10°
💧 None
💨 13 km/h
Overcast
17°/10°
💧 None
💨 13 km/h
Daytime temperature 16°C
Feels like 15°C
Humidity 60%
Pressure 1028 hPa
Cloud cover 100%
Wind direction north
Gusts 17 km/h
Sunrise 6:48 AM
Sunset 7:26 PM
Thursday, Sep 17Thu Sep 17
Mostly cloudy
18°/9°
💧 None
💨 15 km/h
Mostly cloudy
18°/9°
💧 None
💨 15 km/h
Daytime temperature 17°C
Feels like 16°C
Humidity 53%
Pressure 1029 hPa
Cloud cover 74%
Wind direction northeast
Gusts 25 km/h
Sunrise 6:50 AM
Sunset 7:24 PM
TEMPERATURE OUTLOOK
Temperature & Weather Trends in Cardiff
AIR QUALITY FORECAST
Air Quality Forecast for Cardiff
Fair
Nearest forecast value
9:00 AM
PM2.5 Fine particles Good 1,8µg/m³
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
PM10 Particulate matter Good 4,5µg/m³
Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.
O₃ Ozone Fair 82,7µg/m³
Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.
NO₂ Nitrogen dioxide Good 2,7µg/m³
A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.
Air quality is acceptable for most people.
Fair
Selected time
12:00 AM
PM2.5 Fine particles Good 3,7µg/m³
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
PM10 Particulate matter Good 9,4µg/m³
Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.
O₃ Ozone Fair 67,3µg/m³
Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.
NO₂ Nitrogen dioxide Good 2,7µg/m³
A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.
Air quality is acceptable for most people.
Good
Selected time
12:00 AM
PM2.5 Fine particles Good 3,4µg/m³
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
PM10 Particulate matter Good 6,9µg/m³
Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.
O₃ Ozone Good 50,0µg/m³
Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.
NO₂ Nitrogen dioxide Good 3,4µg/m³
A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.
Air quality is favorable for outdoor activities.
Good
Selected time
12:00 AM
PM2.5 Fine particles Good 1,6µg/m³
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
PM10 Particulate matter Good 3,7µg/m³
Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.
O₃ Ozone Good 54,8µg/m³
Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.
NO₂ Nitrogen dioxide Good 3,1µg/m³
A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.
Air quality is favorable for outdoor activities.
Fair
Selected time
2:00 AM
PM2.5 Fine particles Fair 10,4µg/m³
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
PM10 Particulate matter Good 14,5µg/m³
Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.
O₃ Ozone Good 41,8µg/m³
Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.
NO₂ Nitrogen dioxide Good 10,5µg/m³
A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.
Air quality is acceptable for most people.
UV & HEALTH
UV, Sun & Health Outlook in Cardiff
Maximum daily UV
Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low
3–5 Moderate
6–7 High
8–10 Very high
11+ Extreme
Today
UV 2,8Low
🙂Fair
Tomorrow
UV 4,0Moderate
🙂Fair
Friday
UV 2,7Low
😊Good
Saturday
UV 4,8Moderate
🙂Fair
Sunday
UV 6,0High
🙂Fair
Monday
UV 5,0Moderate
—Unavailable
Tuesday
UV 4,0Moderate
—Unavailable
Hourly UV index today
9:00 AMUV 0,4
10:00 AMUV 0,4
11:00 AMUV 0,7
12:00 PMUV 1,5
1:00 PMUV 1,3
2:00 PMUV 2,2
3:00 PMUV 2,8
4:00 PMUV 2,0
5:00 PMUV 1,4
6:00 PMUV 0,6
7:00 PMUV 0,2
Today's weather health advice
Open today's recommendations.
Low UV risk
UV radiation will be low, although basic protection is still advisable during prolonged exposure.
Acceptable air quality
Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.
Comfortable temperature conditions
Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.
Good conditions for outdoor activities
Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.
WIND OUTLOOK
Hourly Wind Forecast for Cardiff
Sustained wind
Max gusts
Internal PR simulation:
5.54
Population: 348,535
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Forecast data for Cardiff were last refreshed today at 7:49 AM. The current forecast period extends through 04/09/2026 at 6:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.