Feels like11°CWind direction southwestGusts —Humidity 99%Cloud cover 100%Pressure 1005 hPa
Light rain
13°💧 None💨 21 km/hH 99%1007 hPa
Feels like9°CWind direction westGusts —Humidity 99%Cloud cover 93%Pressure 1007 hPa
Mostly cloudy
10°💧 None💨 16 km/hH 99%1010 hPa
Feels like7°CWind direction westGusts —Humidity 99%Cloud cover 85%Pressure 1010 hPa
Mostly sunny
14°💧 None💨 22 km/hH 77%1014 hPa
Feels like9°CWind direction westGusts —Humidity 77%Cloud cover 16%Pressure 1014 hPa
Sunday
Overcast night
13°💧 None💨 17 km/hH 81%1018 hPa
Feels like9°CWind direction westGusts —Humidity 81%Cloud cover 98%Pressure 1018 hPa
Partly cloudy
10°💧 None💨 10 km/hH 88%1023 hPa
Feels like8°CWind direction westGusts —Humidity 88%Cloud cover 69%Pressure 1023 hPa
Partly cloudy
8°💧 None💨 3 km/hH 92%1026 hPa
Feels like7°CWind direction westGusts —Humidity 92%Cloud cover 73%Pressure 1026 hPa
Partly cloudy
14°💧 None💨 13 km/hH 71%1028 hPa
Feels like11°CWind direction southwestGusts —Humidity 71%Cloud cover 46%Pressure 1028 hPa
Monday
Overcast night
13°💧 None💨 10 km/hH 84%1028 hPa
Feels like11°CWind direction southwestGusts —Humidity 84%Cloud cover 95%Pressure 1028 hPa
Light rain
14°💧 None💨 23 km/hH 99%1026 hPa
Feels like11°CWind direction southwestGusts —Humidity 99%Cloud cover 100%Pressure 1026 hPa
Light rain
14°💧 None💨 21 km/hH 100%1025 hPa
Feels like12°CWind direction southwestGusts —Humidity 100%Cloud cover 100%Pressure 1025 hPa
Light rain
15°💧 None💨 25 km/hH 96%1025 hPa
Feels like12°CWind direction southwestGusts —Humidity 96%Cloud cover 99%Pressure 1025 hPa
Tuesday
Light rain
14°💧 None💨 23 km/hH 100%1023 hPa
Feels like11°CWind direction southwestGusts —Humidity 100%Cloud cover 80%Pressure 1023 hPa
Light rain
14°💧 None💨 23 km/hH 100%1021 hPa
Feels like11°CWind direction southwestGusts —Humidity 100%Cloud cover 100%Pressure 1021 hPa
Moderate rain
14°💧 None💨 28 km/hH 100%1017 hPa
Feels like10°CWind direction southwestGusts —Humidity 100%Cloud cover 100%Pressure 1017 hPa
Mostly sunny
15°💧 None💨 19 km/hH 78%1019 hPa
Feels like12°CWind direction westGusts —Humidity 78%Cloud cover 38%Pressure 1019 hPa
Wednesday
Mostly cloudy night
13°💧 None💨 17 km/hH 92%1020 hPa
Feels like10°CWind direction southwestGusts —Humidity 92%Cloud cover 93%Pressure 1020 hPa
Overcast night
11°💧 None💨 12 km/hH 87%1021 hPa
Feels like8°CWind direction southwestGusts —Humidity 87%Cloud cover 98%Pressure 1021 hPa
Overcast
11°💧 None💨 10 km/hH 90%1020 hPa
Feels like8°CWind direction southwestGusts —Humidity 90%Cloud cover 97%Pressure 1020 hPa
Light rain
11°💧 None💨 9 km/hH 95%1020 hPa
Feels like10°CWind direction westGusts —Humidity 95%Cloud cover 100%Pressure 1020 hPa
Thursday
Light rain
10°💧 None💨 6 km/hH 95%1020 hPa
Feels like9°CWind direction westGusts —Humidity 95%Cloud cover 100%Pressure 1020 hPa
Mostly clear night
8°💧 None💨 12 km/hH 96%1024 hPa
Feels like6°CWind direction northwestGusts —Humidity 96%Cloud cover 34%Pressure 1024 hPa
Mostly sunny
7°💧 None💨 8 km/hH 96%1028 hPa
Feels like5°CWind direction westGusts —Humidity 96%Cloud cover 27%Pressure 1028 hPa
Partly cloudy
13°💧 None💨 14 km/hH 64%1032 hPa
Feels like10°CWind direction northwestGusts —Humidity 64%Cloud cover 65%Pressure 1032 hPa
Friday
Partly cloudy night
10°💧 None💨 5 km/hH 84%1034 hPa
Feels like8°CWind direction northwestGusts —Humidity 84%Cloud cover 59%Pressure 1034 hPa
Mostly cloudy night
6°💧 None💨 1 km/hH 99%1035 hPa
Feels like5°CWind direction northeastGusts —Humidity 99%Cloud cover 94%Pressure 1035 hPa
Overcast
5°💧 None💨 3 km/hH 99%1034 hPa
Feels like3°CWind direction northeastGusts —Humidity 99%Cloud cover 99%Pressure 1034 hPa
Overcast
14°💧 None💨 10 km/hH 61%1033 hPa
Feels like11°CWind direction southeastGusts —Humidity 61%Cloud cover 99%Pressure 1033 hPa
Saturday
Overcast night
11°💧 None💨 9 km/hH 75%1030 hPa
Feels like9°CWind direction southeastGusts —Humidity 75%Cloud cover 99%Pressure 1030 hPa
Clear night
9°💧 None💨 11 km/hH 78%1027 hPa
Feels like6°CWind direction southGusts —Humidity 78%Cloud cover 0%Pressure 1027 hPa
Mostly sunny
10°💧 None💨 19 km/hH 89%1022 hPa
Feels like6°CWind direction southGusts —Humidity 89%Cloud cover 14%Pressure 1022 hPa
Mostly cloudy
13°💧 None💨 13 km/hH 92%1023 hPa
Feels like11°CWind direction northwestGusts —Humidity 92%Cloud cover 91%Pressure 1023 hPa
Sunday
Clear night
10°💧 None💨 5 km/hH 90%1024 hPa
Feels like9°CWind direction northwestGusts —Humidity 90%Cloud cover 2%Pressure 1024 hPa
Partly cloudy night
7°💧 None💨 1 km/hH 97%1023 hPa
Feels like6°CWind direction northeastGusts —Humidity 97%Cloud cover 63%Pressure 1023 hPa
Mostly cloudy
6°💧 None💨 3 km/hH 98%1020 hPa
Feels like5°CWind direction southeastGusts —Humidity 98%Cloud cover 76%Pressure 1020 hPa
Overcast
12°💧 None💨 13 km/hH 69%1018 hPa
Feels like9°CWind direction southwestGusts —Humidity 69%Cloud cover 99%Pressure 1018 hPa
In Trawsfynydd and, more broadly, across Gwynedd:
This morning will see mostly cloudy skies, with mild temperatures ranging from 15 to 20 degrees Celsius. Light southerly breezes are expected, with speeds reaching up to 7 mph and gusts up to 11 mph. During the afternoon, the cloud cover is likely to persist, and there is a slight chance of light rain, with accumulation around 0.4 mm. The probability of rainfall remains low, at about 20%. Overall, the weather will be relatively mild and breezy, with some cloudy periods and minimal chances of precipitation.
15-Day Weather Outlook for Trawsfynydd
TomorrowTomorrowMostly cloudy18°/13°💧 None💨 25 km/h
Daytime temperature 18°CFeels like 14°CHumidity 97%Pressure 1019 hPaCloud cover 97%Wind direction southwestGusts 50 km/hSunrise —Sunset —
Tuesday, Sep 15Tue Sep 15Light rain16°/11°💧 24 mm💨 27 km/h
Daytime temperature 14°CFeels like 11°CHumidity 95%Pressure 1015 hPaCloud cover 82%Wind direction westGusts 54 km/hSunrise —Sunset —
Wednesday, Sep 16Wed Sep 16Light rain13°/10°💧 3.3 mm💨 18 km/h
Daytime temperature 13°CFeels like 9°CHumidity 89%Pressure 1018 hPaCloud cover 95%Wind direction northwestGusts 41 km/hSunrise —Sunset —
Thursday, Sep 17Thu Sep 17Light rain13°/10°💧 12 mm💨 23 km/h
Daytime temperature 13°CFeels like 9°CHumidity 94%Pressure 1005 hPaCloud cover 78%Wind direction westGusts 55 km/hSunrise —Sunset —
Friday, Sep 18Fri Sep 18Moderate rain13°/9°💧 16 mm💨 28 km/h
Daytime temperature 12°CFeels like 7°CHumidity 92%Pressure 1002 hPaCloud cover 75%Wind direction westGusts 68 km/hSunrise —Sunset —
Saturday, Sep 19Sat Sep 19Light rain14°/10°💧 3.2 mm💨 22 km/h
Daytime temperature 10°CFeels like 7°CHumidity 94%Pressure 1009 hPaCloud cover 74%Wind direction westGusts —Sunrise —Sunset —
Sunday, Sep 20Sun Sep 20Overcast14°/8°💧 0.1 mm💨 17 km/h
Daytime temperature 8°CFeels like 7°CHumidity 83%Pressure 1024 hPaCloud cover 72%Wind direction westGusts —Sunrise —Sunset —
Monday, Sep 21Mon Sep 21Light rain15°/13°💧 3.9 mm💨 25 km/h
Daytime temperature 14°CFeels like 12°CHumidity 95%Pressure 1026 hPaCloud cover 98%Wind direction southwestGusts —Sunrise —Sunset —
Tuesday, Sep 22Tue Sep 22Moderate rain15°/14°💧 13 mm💨 28 km/h
Daytime temperature 14°CFeels like 10°CHumidity 94%Pressure 1020 hPaCloud cover 80%Wind direction southwestGusts —Sunrise —Sunset —
Wednesday, Sep 23Wed Sep 23Light rain13°/11°💧 1.7 mm💨 17 km/h
Daytime temperature 11°CFeels like 8°CHumidity 91%Pressure 1020 hPaCloud cover 97%Wind direction southwestGusts —Sunrise —Sunset —
Thursday, Sep 24Thu Sep 24Light rain13°/7°💧 7.0 mm💨 14 km/h
Daytime temperature 7°CFeels like 5°CHumidity 88%Pressure 1026 hPaCloud cover 56%Wind direction westGusts —Sunrise —Sunset —
Friday, Sep 25Fri Sep 25Partly cloudy14°/5°💧 0.0 mm💨 10 km/h
Daytime temperature 5°CFeels like 3°CHumidity 86%Pressure 1034 hPaCloud cover 88%Wind direction northeastGusts —Sunrise —Sunset —
Saturday, Sep 26Sat Sep 26Mostly cloudy13°/9°💧 4.5 mm💨 19 km/h
Daytime temperature 10°CFeels like 6°CHumidity 84%Pressure 1026 hPaCloud cover 51%Wind direction southGusts —Sunrise —Sunset —
Sunday, Sep 27Sun Sep 27Mostly cloudy12°/6°💧 0.3 mm💨 13 km/h
Daytime temperature 6°CFeels like 5°CHumidity 88%Pressure 1021 hPaCloud cover 60%Wind direction southeastGusts —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.
🌬️
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 Trawsfynydd
Vertical axis: km/h · Horizontal axis: hours
km/h
Sustained windMax gusts
NIGHT SKY · TRAWSFYNYDD, WALES
Tonight's Stargazing & Shooting Stars
Local night-sky conditions and meteor activity for Jasper.
0/100Best-hour score
No good viewing window tonight
Astronomical darkness exists, but current sky conditions are unfavorable.
☁Cloud cover100%
Real hourly forecast for the best viewing hour.
☾Moonlight5%
Waxing Crescent · Moon below the horizon at the best viewing hour.
☄Meteor activitySeptember ε-Perseids
Reference ZHR 8 · Radiant 24° 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 Trawsfynydd were last refreshed today at 7:00 AM. The current forecast period extends through 15/09/2026 at 5:00 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.