See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
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Hourly Forecast
Daylight Hours
06:45
Sunrise
19:02
Sunset
Moon
Waxing Crescent
10:32
Moonrise
20:11
Moonset
Daily Forecast
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Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
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Wednesday
Air Quality Data Available
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UV Index
Humidity
Weather in Brighton tomorrow, September 15, 2026
Expect unsettled, showery conditions in Brighton on September 15, 2026 as rain moves through. The day opens on a wet note and needs flexible outdoor plans. The first half of the day looks overcast, as cloud amounts reach about 100% around 06:00. Brighter weather, if it comes, waits until later.
The day peaks near 30°C and cools toward 13°C. Expect humidity between 22% and 92%, most humid near 18:00. Airflow remains manageable, reaching about 8.0 km/h around 01:00.
Later hours favour clearer intervals, as cloud stays near 53% around 12:00. The afternoon is the better half for outdoor time. Expect visibility around 16.1 km. The sun rises at 06:46 and sets at 19:01, for a total of 12 hours 14 minutes of sunlight today.
Overall, Brighton on September 15, 2026 suits indoor plans or waterproof kit, especially while rain chances stay near 0% and the high sits around 30°C.
Frequently asked questions about weather in Brighton
How warm does it get in Brighton?
The warmest month in Brighton is July, with average high temperatures of 33°C. The average temperature during this period is around 25°C.
How cold does it get in Brighton?
The coldest month in Brighton is January, with average low temperatures of -7°C. The average temperature during this period is around -2°C.
What is the wettest time of year in Brighton?
The wettest month in Brighton is May, with an average of 77mm of precipitation.
What is the driest time of year in Brighton?
The driest month in Brighton is December, with an average of 10mm of precipitation.
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