See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
19°
Clear
Feels Like: 19°
Min: 17°
Max: 21°
The next few hours will be clear, with today reaching 21°C and dropping to 16°C. The coming days will be partly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:07
Sunrise
18:50
Sunset
Moon
Waxing Gibbous
18:22
Moonrise
05:23
Moonset
Daily Forecast
Today
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Sunday
Air Quality Data Available
Upgrade to access real-time air quality data for Saint Helier.
Resources
UV Index
Humidity
Current stargazing conditions?
See sky darkness, moon phase, and the best viewing window for Saint Helier.
View stargazing scoreWeather in Saint Helier today, September 25, 2026
Cloud cover dominates in Saint Helier on September 25, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. The morning sky stays heavily clouded, with cover near 67% around 10:00. Grey conditions set the early tone before any later change.
The temperature range runs from about 17°C up to 21°C. Expect humidity between 77% and 91%, most humid near 10:00. Expect gentle winds, highest near 17:00 at 5.4 km/h.
Expect persistent cloud later on, with amounts around 100% by 20:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 25.8 km on average, though it can drop toward 8.2 km in thicker cloud or showers. Sunrise is at 07:07 and sunset at 18:50, giving 11 hours 43 minutes of sunlight today.
The practical takeaway for Saint Helier on September 25, 2026 is a cloudy day that stays usable, just not particularly bright, around 21°C.
Frequently asked questions about weather in Saint Helier
How warm does it get in Saint Helier?
The warmest month in Saint Helier is August, with average high temperatures of 19°C. The average temperature during this period is around 18°C.
How cold does it get in Saint Helier?
The coldest month in Saint Helier is January, with average low temperatures of 7°C. The average temperature during this period is around 8°C.
What is the wettest time of year in Saint Helier?
The wettest month in Saint Helier is November, with an average of 148mm of precipitation.
What is the driest time of year in Saint Helier?
The driest month in Saint Helier is April, with an average of 46mm of precipitation.
