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Now · 12:50 PM

Cardiff Weather & Hourly Forecast

United Kingdom · Wales

Mostly cloudy
18°C
Mostly cloudy
Feels like: 19°C
💧 Humidity 87% 🌡 Pressure 1030 hPa 💨 Wind 5 km/h 👁 Visibility 19.9 km Clouds 89% ☀️ UV index 3.2 · Moderate 🌅 Sunrise 6:57 AM 🌇 Sunset 7:13 PM

Hourly Forecast for Cardiff

Today
Mostly cloudy · 1:00 PM Mostly cloudy
18° 💧 0.0 mm 💨 5 km/h H 87%1030 hPa
Mostly sunny · 4:00 PM Mostly sunny
20° 💧 None 💨 4 km/h H 78%1028 hPa
Partly cloudy · 7:00 PM Partly cloudy
19° 💧 0.0 mm 💨 1 km/h H 85%1027 hPa
Partly cloudy night · 10:00 PM Partly cloudy night
16° 💧 None 💨 2 km/h H 96%1027 hPa
Tomorrow
Fog at night · 1:00 AM Fog at night
14° 💧 None 💨 1 km/h H 100%1026 hPa
Fog at night · 4:00 AM Fog at night
15° 💧 0.0 mm 💨 6 km/h H 98%1025 hPa
Fog · 7:00 AM Fog
15° 💧 0.1 mm 💨 8 km/h H 98%1024 hPa
Mostly sunny · 10:00 AM Mostly sunny
17° 💧 0.0 mm 💨 13 km/h H 84%1025 hPa
Mostly cloudy · 1:00 PM Mostly cloudy
20° 💧 0.0 mm 💨 14 km/h H 63%1025 hPa
Mostly sunny · 4:00 PM Mostly sunny
19° 💧 None 💨 13 km/h H 62%1025 hPa
Mostly cloudy · 7:00 PM Mostly cloudy
15° 💧 None 💨 5 km/h H 75%1026 hPa
Overcast night · 10:00 PM Overcast night
12° 💧 None 💨 9 km/h H 77%1027 hPa
Thursday
Mostly cloudy night · 1:00 AM Mostly cloudy night
11° 💧 None 💨 9 km/h H 81%1027 hPa
Overcast night · 4:00 AM Overcast night
10° 💧 None 💨 10 km/h H 88%1026 hPa
Mostly cloudy · 7:00 AM Mostly cloudy
💧 None 💨 9 km/h H 91%1026 hPa
Overcast · 10:00 AM Overcast
13° 💧 None 💨 7 km/h H 82%1026 hPa

In Cardiff and, more broadly, across Cardiff: The rest of the day will see a mix of sun and clouds, with temperatures remaining mild, ranging from 17 to 20 degrees Celsius. Winds will be light, coming from the west at around 7 mph, with occasional gusts reaching 11 mph. No rain is expected, so it should be a relatively dry afternoon. Overall, it looks like a pleasant day with comfortable conditions for outdoor activities. The weather is unlikely to cause any disruptions, making it a good day to enjoy some time outside.

15-Day Weather Outlook for Cardiff

TomorrowTomorrow Overcast Overcast 20°/12° 💧 None 💨 15 km/h
Thursday, Sep 24Thu Sep 24 Overcast Overcast 20°/ 💧 None 💨 14 km/h
Friday, Sep 25Fri Sep 25 Light rain Light rain 18°/13° 💧 2.1 mm 💨 12 km/h
Saturday, Sep 26Sat Sep 26 Partly cloudy Partly cloudy 17°/ 💧 0.2 mm 💨 14 km/h
Sunday, Sep 27Sun Sep 27 Light rain Light rain 18°/12° 💧 3.7 mm 💨 17 km/h
Monday, Sep 28Mon Sep 28 Mostly sunny Mostly sunny 17°/ 💧 1.1 mm 💨 16 km/h
Tuesday, Sep 29Tue Sep 29 Mostly cloudy Mostly cloudy 17°/13° 💧 10 mm 💨 29 km/h
Wednesday, Sep 30Wed Sep 30 Moderate rain Moderate rain 16°/13° 💧 2.9 mm 💨 27 km/h
Thursday, Oct 1Thu Oct 1 Light rain Light rain 15°/11° 💧 3.3 mm 💨 28 km/h
Friday, Oct 2Fri Oct 2 Moderate rain Moderate rain 12°/ 💧 11 mm 💨 22 km/h
Saturday, Oct 3Sat Oct 3 Mostly sunny Mostly sunny 14°/ 💧 0.5 mm 💨 12 km/h
Sunday, Oct 4Sun Oct 4 Overcast Overcast 16°/10° 💧 0.0 mm 💨 24 km/h
Monday, Oct 5Mon Oct 5 Overcast Overcast 17°/13° 💧 5.7 mm 💨 19 km/h
Tuesday, Oct 6Tue Oct 6 Overcast Overcast 16°/ 💧 0.2 mm 💨 5 km/h
Wednesday, Oct 7Wed Oct 7 Overcast Overcast 11°/11° 💧 0.2 mm 💨 7 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Cardiff

Vertical axis: °C · Color based on temperature
Mostly cloudy at 1:00 PM
18° Today 1:00 PM
Mostly cloudy at 2:00 PM
19° 2:00 PM
Partly cloudy at 3:00 PM
20° 3:00 PM
Mostly sunny at 4:00 PM
20° 4:00 PM
Mostly sunny at 5:00 PM
20° Today 5:00 PM
Mostly sunny at 6:00 PM
20° 6:00 PM
Partly cloudy at 7:00 PM
19° 7:00 PM
Partly cloudy night at 8:00 PM
18° 8:00 PM
Mostly cloudy night at 9:00 PM
17° Today 9:00 PM
Partly cloudy night at 10:00 PM
16° 10:00 PM
Partly cloudy night at 11:00 PM
15° 11:00 PM
Mist at night at 12:00 AM
15° 12:00 AM
Fog at night at 1:00 AM
14° Tomorrow 1:00 AM
Fog at night at 2:00 AM
15° 2:00 AM
Fog at night at 3:00 AM
15° 3:00 AM
Fog at night at 4:00 AM
15° 4:00 AM
Fog at night at 5:00 AM
15° Tomorrow 5:00 AM
Fog at night at 6:00 AM
15° 6:00 AM
Fog at 7:00 AM
15° 7:00 AM
Overcast at 8:00 AM
15° 8:00 AM
Mostly cloudy at 9:00 AM
16° Tomorrow 9:00 AM
Mostly sunny at 10:00 AM
17° 10:00 AM
Mostly sunny at 11:00 AM
18° 11:00 AM
Mostly sunny at 12:00 PM
19° 12:00 PM
Mostly cloudy at 1:00 PM
20° Tomorrow 1:00 PM
Mostly cloudy at 2:00 PM
20° 2:00 PM
Sunny at 3:00 PM
20° 3:00 PM
Mostly sunny at 4:00 PM
19° 4:00 PM
Mostly sunny at 5:00 PM
18° Tomorrow 5:00 PM
Partly cloudy at 6:00 PM
17° 6:00 PM
Mostly cloudy at 7:00 PM
15° 7:00 PM
Overcast night at 8:00 PM
14° 8:00 PM
Mostly cloudy night at 9:00 PM
13° Tomorrow 9:00 PM
Overcast night at 10:00 PM
12° 10:00 PM
Mostly cloudy night at 11:00 PM
12° 11:00 PM
Overcast night at 12:00 AM
12° 12:00 AM
Mostly cloudy night at 1:00 AM
11° Thursday 1:00 AM
Mostly cloudy night at 2:00 AM
11° 2:00 AM
Mostly cloudy night at 3:00 AM
10° 3:00 AM
Overcast night at 4:00 AM
10° 4:00 AM
Mostly cloudy night at 5:00 AM
10° Thursday 5:00 AM
Mostly cloudy night at 6:00 AM
10° 6:00 AM
Mostly cloudy at 7:00 AM
7:00 AM
Overcast at 8:00 AM
10° 8:00 AM
Overcast at 9:00 AM
12° Thursday 9:00 AM
Overcast at 10:00 AM
13° 10:00 AM
Mostly cloudy at 11:00 AM
15° 11:00 AM
Mostly cloudy at 12:00 PM
16° 12:00 PM
Mostly cloudy at 1:00 PM
17° Thursday 1:00 PM
Mostly cloudy at 2:00 PM
18° 2:00 PM
Partly cloudy at 3:00 PM
19° 3:00 PM
Partly cloudy at 4:00 PM
20° 4:00 PM
Partly cloudy at 5:00 PM
20° Thursday 5:00 PM
Mostly sunny at 6:00 PM
19° 6:00 PM
Partly cloudy at 7:00 PM
18° 7:00 PM
Mostly cloudy night at 8:00 PM
17° 8:00 PM
Partly cloudy night at 9:00 PM
16° Thursday 9:00 PM
Mostly clear night at 10:00 PM
16° 10:00 PM
Mostly clear night at 11:00 PM
15° 11:00 PM
Mostly clear night at 12:00 AM
14° 12:00 AM
Mostly clear night at 1:00 AM
14° Friday 1:00 AM
Overcast night at 4:00 AM
14° 4:00 AM
Overcast night at 7:00 AM
13° 7:00 AM
Overcast at 10:00 AM
16° 10:00 AM
Light rain at 1:00 PM
18° Friday 1:00 PM
Overcast at 4:00 PM
18° 4:00 PM
Mostly cloudy at 7:00 PM
15° 7:00 PM
Overcast night at 10:00 PM
13° 10:00 PM
Partly cloudy night at 1:00 AM
10° Saturday 1:00 AM
Overcast night at 4:00 AM
4:00 AM
Overcast night at 7:00 AM
7:00 AM
Overcast at 10:00 AM
13° 10:00 AM
Partly cloudy at 1:00 PM
17° Saturday 1:00 PM
Partly cloudy at 4:00 PM
17° 4:00 PM
Mostly cloudy at 7:00 PM
14° 7:00 PM
Overcast night at 10:00 PM
13° 10:00 PM
Overcast night at 1:00 AM
13° Sunday 1:00 AM
Mostly cloudy night at 4:00 AM
13° 4:00 AM
Light rain at 7:00 AM
12° 7:00 AM
Light rain at 10:00 AM
15° 10:00 AM
Mostly sunny at 1:00 PM
18° Sunday 1:00 PM
Mostly sunny at 4:00 PM
17° 4:00 PM
Mostly cloudy at 7:00 PM
14° 7:00 PM
Overcast night at 10:00 PM
12° 10:00 PM
Overcast night at 1:00 AM
10° Monday 1:00 AM
Mostly clear night at 7:00 AM
7:00 AM
Mostly sunny at 1:00 PM
17° 1:00 PM
Overcast night at 7:00 PM
14° 7:00 PM
Mostly cloudy night at 1:00 AM
13° Tuesday 1:00 AM
Overcast night at 7:00 AM
16° 7:00 AM
Sunny at 1:00 PM
17° 1:00 PM
Partly cloudy night at 7:00 PM
16° 7:00 PM
Mostly clear night at 1:00 AM
16° Wednesday 1:00 AM
Moderate rain at 7:00 AM
15° 7:00 AM
Overcast at 1:00 PM
16° 1:00 PM
Light rain at 7:00 PM
13° 7:00 PM
Clear night at 1:00 AM
11° Thursday 1:00 AM
Mostly cloudy night at 7:00 AM
12° 7:00 AM
Light rain at 1:00 PM
15° 1:00 PM
Light rain at 7:00 PM
11° 7:00 PM
Moderate rain at 1:00 AM
Friday 1:00 AM
Mostly clear night at 7:00 AM
7:00 AM
Light rain at 1:00 PM
12° 1:00 PM
Light rain at 7:00 PM
11° 7:00 PM
Mostly clear night at 1:00 AM
Saturday 1:00 AM
Clear night at 7:00 AM
7:00 AM
Mostly cloudy at 1:00 PM
14° 1:00 PM
Overcast night at 7:00 PM
11° 7:00 PM
Overcast night at 1:00 AM
10° Sunday 1:00 AM
Overcast night at 7:00 AM
10° 7:00 AM
Overcast at 1:00 PM
16° 1:00 PM
Mostly cloudy night at 7:00 PM
15° 7:00 PM
Mostly cloudy night at 1:00 AM
15° Monday 1:00 AM
Overcast night at 7:00 AM
16° 7:00 AM
Mostly cloudy at 1:00 PM
17° 1:00 PM
Mostly cloudy night at 7:00 PM
13° 7:00 PM
Overcast night at 1:00 AM
10° Tuesday 1:00 AM
Overcast night at 7:00 AM
7:00 AM
Overcast at 1:00 PM
16° 1:00 PM
Overcast night at 7:00 PM
13° 7:00 PM
Overcast night at 1:00 AM
11° Wednesday 1:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Cardiff

Hourly forecast · Updated every 2 hours
Good
Nearest forecast value 1:00 PM
PM2.5 Fine particles Good 7,0µg/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 9,6µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 47,5µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 3,8µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

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 3,3Moderate 😊Good
Tomorrow UV 3,3Moderate 🙂Fair
Thursday UV 3,4Moderate 🙂Fair
Friday UV 3,2Moderate 😐Moderate
Saturday UV 4,0Moderate 🙂Fair
Sunday UV 4,0Moderate Unavailable
Monday UV 4,0Moderate Unavailable
Hourly UV index today
1:00 PMUV 3,3 2:00 PMUV 3,1 3:00 PMUV 2,6 4:00 PMUV 1,7 5:00 PMUV 0,8 6:00 PMUV 0,3 7:00 PMUV 0,0
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

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

Vertical axis: km/h · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in km/h. Today 1:00 PM 2:00 PM 3:00 PM 4:00 PM Today 5:00 PM 6:00 PM 7:00 PM 8:00 PM Today 9:00 PM 10:00 PM 11:00 PM 12:00 AM Tomorrow 1:00 AM 2:00 AM 3:00 AM 4:00 AM Tomorrow 5:00 AM 6:00 AM 7:00 AM 8:00 AM Tomorrow 9:00 AM 10:00 AM 11:00 AM 12:00 PM Tomorrow 1:00 PM 2:00 PM 3:00 PM 4:00 PM Tomorrow 5:00 PM 6:00 PM 7:00 PM 8:00 PM Tomorrow 9:00 PM 10:00 PM 11:00 PM 12:00 AM Thursday 1:00 AM 2:00 AM 3:00 AM 4:00 AM Thursday 5:00 AM 6:00 AM 7:00 AM 8:00 AM Thursday 9:00 AM 10:00 AM 11:00 AM 12:00 PM Thursday 1:00 PM 2:00 PM 3:00 PM 4:00 PM Thursday 5:00 PM 6:00 PM 7:00 PM 8:00 PM Thursday 9:00 PM 10:00 PM 11:00 PM 12:00 AM Friday 1:00 AM 4:00 AM 7:00 AM 10:00 AM Friday 1:00 PM 4:00 PM 7:00 PM 10:00 PM Saturday 1:00 AM 4:00 AM 7:00 AM 10:00 AM Saturday 1:00 PM 4:00 PM 7:00 PM 10:00 PM Sunday 1:00 AM 4:00 AM 7:00 AM 10:00 AM Sunday 1:00 PM 4:00 PM 7:00 PM 10:00 PM Monday 1:00 AM 7:00 AM 1:00 PM 7:00 PM Tuesday 1:00 AM 7:00 AM 1:00 PM 7:00 PM Wednesday 1:00 AM 7:00 AM 1:00 PM 7:00 PM Thursday 1:00 AM 7:00 AM 1:00 PM 7:00 PM Friday 1:00 AM 7:00 AM 1:00 PM 7:00 PM Saturday 1:00 AM 7:00 AM 1:00 PM 7:00 PM Sunday 1:00 AM 7:00 AM 1:00 PM 7:00 PM Monday 1:00 AM 7:00 AM 1:00 PM 7:00 PM Tuesday 1:00 AM 7:00 AM 1:00 PM 7:00 PM Wednesday 1:00 AM
Sustained wind Max gusts
NIGHT SKY · CARDIFF, WALES

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 10:00 PM–11:00 PM.

62/100Best-hour score
BEST TIME TONIGHT 10:00 PM–11:00 PM Astronomical darkness: 9:05 PM–5:07 AM
Cloud cover 38% Real hourly forecast for the best viewing hour.
Moonlight 85% Waxing Gibbous · Moon about 21° above the horizon at the best viewing hour.
Meteor activity Southern Taurids Reference ZHR 7 · Radiant 7° high at the best hour.
Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min5%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
ACTIVE NOW
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING
NOV 6–NOV 30
LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

Forecast data for Cardiff were last refreshed today at 12:50 PM. The current forecast period extends through 24/09/2026 at 10:00 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.