Feels like15°CWind direction southwestGusts —Humidity 99%Cloud cover 100%Pressure 1018 hPa
Moderate rain
16°💧 None💨 17 km/hH 99%1016 hPa
Feels like14°CWind direction southwestGusts —Humidity 99%Cloud cover 100%Pressure 1016 hPa
Light rain
15°💧 None💨 19 km/hH 97%1015 hPa
Feels like13°CWind direction westGusts —Humidity 97%Cloud cover 100%Pressure 1015 hPa
Light rain
16°💧 None💨 18 km/hH 77%1018 hPa
Feels like13°CWind direction westGusts —Humidity 77%Cloud cover 57%Pressure 1018 hPa
Wednesday
Mostly clear night
14°💧 None💨 16 km/hH 84%1020 hPa
Feels like11°CWind direction westGusts —Humidity 84%Cloud cover 10%Pressure 1020 hPa
Partly cloudy
11°💧 None💨 11 km/hH 95%1022 hPa
Feels like9°CWind direction northwestGusts —Humidity 95%Cloud cover 70%Pressure 1022 hPa
Mostly sunny
9°💧 None💨 12 km/hH 95%1023 hPa
Feels like7°CWind direction northwestGusts —Humidity 95%Cloud cover 31%Pressure 1023 hPa
Overcast
15°💧 None💨 14 km/hH 64%1024 hPa
Feels like11°CWind direction northwestGusts —Humidity 64%Cloud cover 98%Pressure 1024 hPa
Thursday
Overcast night
13°💧 None💨 10 km/hH 74%1024 hPa
Feels like10°CWind direction northwestGusts —Humidity 74%Cloud cover 100%Pressure 1024 hPa
Mostly sunny
9°💧 None💨 5 km/hH 92%1023 hPa
Feels like7°CWind direction northGusts —Humidity 92%Cloud cover 16%Pressure 1023 hPa
Sunny
8°💧 None💨 4 km/hH 90%1022 hPa
Feels like7°CWind direction eastGusts —Humidity 90%Cloud cover 5%Pressure 1022 hPa
Partly cloudy
15°💧 None💨 13 km/hH 70%1021 hPa
Feels like13°CWind direction southGusts —Humidity 70%Cloud cover 71%Pressure 1021 hPa
Friday
Mostly cloudy night
14°💧 None💨 10 km/hH 80%1018 hPa
Feels like12°CWind direction southGusts —Humidity 80%Cloud cover 91%Pressure 1018 hPa
Mostly cloudy
12°💧 None💨 13 km/hH 97%1017 hPa
Feels like9°CWind direction southGusts —Humidity 97%Cloud cover 88%Pressure 1017 hPa
Overcast
12°💧 None💨 7 km/hH 98%1016 hPa
Feels like11°CWind direction southGusts —Humidity 98%Cloud cover 100%Pressure 1016 hPa
Overcast
15°💧 None💨 15 km/hH 79%1016 hPa
Feels like13°CWind direction southwestGusts —Humidity 79%Cloud cover 100%Pressure 1016 hPa
Saturday
Mostly cloudy night
14°💧 None💨 7 km/hH 94%1017 hPa
Feels like14°CWind direction southwestGusts —Humidity 94%Cloud cover 88%Pressure 1017 hPa
Mostly sunny
10°💧 None💨 10 km/hH 93%1019 hPa
Feels like8°CWind direction northGusts —Humidity 93%Cloud cover 15%Pressure 1019 hPa
Overcast
7°💧 None💨 7 km/hH 97%1020 hPa
Feels like4°CWind direction northGusts —Humidity 97%Cloud cover 98%Pressure 1020 hPa
Overcast
16°💧 None💨 6 km/hH 61%1021 hPa
Feels like15°CWind direction eastGusts —Humidity 61%Cloud cover 98%Pressure 1021 hPa
Sunday
Overcast night
14°💧 None💨 7 km/hH 79%1021 hPa
Feels like13°CWind direction southwestGusts —Humidity 79%Cloud cover 100%Pressure 1021 hPa
Sunny
11°💧 None💨 5 km/hH 86%1021 hPa
Feels like10°CWind direction westGusts —Humidity 86%Cloud cover 2%Pressure 1021 hPa
Overcast
10°💧 None💨 9 km/hH 91%1020 hPa
Feels like8°CWind direction southwestGusts —Humidity 91%Cloud cover 99%Pressure 1020 hPa
Moderate rain
14°💧 None💨 19 km/hH 92%1021 hPa
Feels like11°CWind direction southwestGusts —Humidity 92%Cloud cover 100%Pressure 1021 hPa
Monday
Mostly clear night
15°💧 None💨 17 km/hH 96%1021 hPa
Feels like13°CWind direction westGusts —Humidity 96%Cloud cover 39%Pressure 1021 hPa
Mostly sunny
13°💧 None💨 15 km/hH 96%1025 hPa
Feels like10°CWind direction northwestGusts —Humidity 96%Cloud cover 24%Pressure 1025 hPa
Overcast
11°💧 None💨 12 km/hH 98%1029 hPa
Feels like10°CWind direction northwestGusts —Humidity 98%Cloud cover 99%Pressure 1029 hPa
Mostly cloudy
16°💧 None💨 8 km/hH 69%1030 hPa
Feels like14°CWind direction northwestGusts —Humidity 69%Cloud cover 94%Pressure 1030 hPa
Tuesday
Partly cloudy night
14°💧 None💨 9 km/hH 79%1029 hPa
Feels like12°CWind direction westGusts —Humidity 79%Cloud cover 59%Pressure 1029 hPa
Mostly sunny
11°💧 None💨 14 km/hH 93%1026 hPa
Feels like8°CWind direction southwestGusts —Humidity 93%Cloud cover 23%Pressure 1026 hPa
Light rain
15°💧 None💨 24 km/hH 99%1019 hPa
Feels like11°CWind direction southwestGusts —Humidity 99%Cloud cover 100%Pressure 1019 hPa
Light rain
16°💧 None💨 25 km/hH 95%1016 hPa
Feels like13°CWind direction westGusts —Humidity 95%Cloud cover 99%Pressure 1016 hPa
Wednesday
Overcast night
12°💧 None💨 16 km/hH 75%1017 hPa
Feels like8°CWind direction westGusts —Humidity 75%Cloud cover 95%Pressure 1017 hPa
Mostly sunny
10°💧 None💨 19 km/hH 84%1016 hPa
Feels like5°CWind direction westGusts —Humidity 84%Cloud cover 34%Pressure 1016 hPa
Partly cloudy
9°💧 None💨 20 km/hH 85%1014 hPa
Feels like4°CWind direction westGusts —Humidity 85%Cloud cover 53%Pressure 1014 hPa
Mostly sunny
13°💧 None💨 28 km/hH 63%1015 hPa
Feels like6°CWind direction northwestGusts —Humidity 63%Cloud cover 36%Pressure 1015 hPa
In Trelewis and, more broadly, across Merthyr Tydfil:
This morning will be mostly cloudy with cool conditions, temperatures ranging from 11 to 16 degrees Celsius. The wind will be coming from the northwest at around 10 mph, with gusts reaching up to 13 mph. No precipitation is expected during the day, so it should remain dry. As the afternoon progresses, the cloud cover is likely to persist, but the weather will stay dry with similar temperatures. The moderate northwest wind will continue, providing a gentle breeze throughout the day. Overall, it will be a cool, cloudy day with steady breezes and no rain.
15-Day Weather Outlook for Trelewis
TomorrowTomorrowOvercast15°/10°💧 None💨 23 km/h
Daytime temperature 15°CFeels like 11°CHumidity 87%Pressure 1016 hPaCloud cover 99%Wind direction southwestGusts 44 km/hSunrise —Sunset —
Friday, Sep 11Fri Sep 11Mostly cloudy18°/9°💧 None💨 14 km/h
Daytime temperature 17°CFeels like 15°CHumidity 83%Pressure 1020 hPaCloud cover 58%Wind direction northwestGusts 29 km/hSunrise —Sunset —
Saturday, Sep 12Sat Sep 12Moderate rain16°/9°💧 3.9 mm💨 29 km/h
Daytime temperature 16°CFeels like 12°CHumidity 91%Pressure 1020 hPaCloud cover 88%Wind direction southwestGusts 60 km/hSunrise —Sunset —
Sunday, Sep 13Sun Sep 13Moderate rain18°/14°💧 8.7 mm💨 20 km/h
Daytime temperature 18°CFeels like 16°CHumidity 90%Pressure 1018 hPaCloud cover 70%Wind direction westGusts 43 km/hSunrise —Sunset —
Monday, Sep 14Mon Sep 14Light rain17°/13°💧 0.7 mm💨 24 km/h
Daytime temperature 17°CFeels like 14°CHumidity 90%Pressure 1019 hPaCloud cover 86%Wind direction southwestGusts 50 km/hSunrise —Sunset —
Tuesday, Sep 15Tue Sep 15Moderate rain16°/15°💧 8.9 mm💨 19 km/h
Daytime temperature 15°CFeels like 13°CHumidity 93%Pressure 1017 hPaCloud cover 89%Wind direction westGusts —Sunrise —Sunset —
Wednesday, Sep 16Wed Sep 16Mostly sunny15°/9°💧 1.3 mm💨 16 km/h
Daytime temperature 9°CFeels like 7°CHumidity 84%Pressure 1022 hPaCloud cover 52%Wind direction northwestGusts —Sunrise —Sunset —
Thursday, Sep 17Thu Sep 17Partly cloudy15°/8°💧 None💨 13 km/h
Daytime temperature 8°CFeels like 7°CHumidity 82%Pressure 1022 hPaCloud cover 48%Wind direction eastGusts —Sunrise —Sunset —
Friday, Sep 18Fri Sep 18Overcast15°/12°💧 0.3 mm💨 15 km/h
Daytime temperature 12°CFeels like 11°CHumidity 88%Pressure 1017 hPaCloud cover 95%Wind direction southGusts —Sunrise —Sunset —
Saturday, Sep 19Sat Sep 19Mostly cloudy16°/7°💧 0.5 mm💨 10 km/h
Daytime temperature 7°CFeels like 4°CHumidity 86%Pressure 1019 hPaCloud cover 75%Wind direction northGusts —Sunrise —Sunset —
Sunday, Sep 20Sun Sep 20Moderate rain14°/10°💧 4.5 mm💨 19 km/h
Daytime temperature 10°CFeels like 8°CHumidity 87%Pressure 1021 hPaCloud cover 75%Wind direction southwestGusts —Sunrise —Sunset —
Monday, Sep 21Mon Sep 21Overcast16°/11°💧 3.6 mm💨 17 km/h
Daytime temperature 11°CFeels like 10°CHumidity 90%Pressure 1026 hPaCloud cover 64%Wind direction northwestGusts —Sunrise —Sunset —
Tuesday, Sep 22Tue Sep 22Light rain16°/11°💧 4.2 mm💨 25 km/h
Daytime temperature 15°CFeels like 11°CHumidity 92%Pressure 1022 hPaCloud cover 70%Wind direction southwestGusts —Sunrise —Sunset —
Wednesday, Sep 23Wed Sep 23Partly cloudy13°/9°💧 1.0 mm💨 28 km/h
Daytime temperature 9°CFeels like 4°CHumidity 77%Pressure 1016 hPaCloud cover 54%Wind direction westGusts —Sunrise —Sunset —
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.
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 Trelewis
Vertical axis: km/h · Horizontal axis: hours
km/h
Sustained windMax gusts
NIGHT SKY · TRELEWIS, WALES
Tonight's Stargazing & Shooting Stars
Local night-sky conditions and meteor activity for Jasper.
29/100Best-hour score
No good viewing window tonight
Astronomical darkness exists, but current sky conditions are unfavorable.
☁Cloud cover99%
Real hourly forecast for the best viewing hour.
☾Moonlight4%
Waning Crescent · Moon below the horizon at the best viewing hour.
☄Meteor activitySeptember ε-Perseids
Reference ZHR 8 · Radiant 37° high at the best hour.
✦Estimated visible meteorsPoor visibility
Meteor activity may occur above the clouds, but local viewing conditions are not suitable.
Chance ≥1 meteor in 30 minNot meaningful
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 5–SEP 21
September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak
ACTIVE NOW
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
UPCOMING
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
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.
DISCOVER WEATHER NEARBYWeather in other cities⌄
Explore current conditions and forecasts for other locations.
Forecast data for Trelewis were last refreshed today at 8:32 AM. The current forecast period extends through 11/09/2026 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.