See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
15°
Overcast
Feels Like: 12°
Min: 14°
Max: 21°
The next few hours will be overcast, with today reaching 21°C and dropping to 11°C. The coming days will be mostly clear until afternoon, returning in the evening.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:40
Sunrise
18:53
Sunset
Moon
Waxing Crescent
12:45
Moonrise
20:50
Moonset
Daily Forecast
Today
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
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UV Index
Humidity
Weather in Sussex today, September 16, 2026
Cloud cover dominates in Sussex on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. The first half of the day looks overcast, as cloud amounts reach about 100% around 03:00. Brighter weather, if it comes, waits until later.
The day peaks near 21°C and cools toward 14°C. Expect humidity between 34% and 88%, most humid near 05:00. A lighter breeze peaks around 12:00 near 5.2 km/h.
Expect persistent cloud later on, with amounts around 100% by 12:00. Sunshine remains the exception, not the rule. Horizontal visibility holds close to 16.1 km. Sunrise is at 06:40 and sunset at 18:53, giving 12 hours 13 minutes of sunlight today.
In short, cloud leads the story in Sussex on September 16, 2026; expect limited sun and a peak around 21°C.
Frequently asked questions about weather in Sussex
How warm does it get in Sussex?
The warmest month in Sussex is July, with average high temperatures of 28°C. The average temperature during this period is around 23°C.
How cold does it get in Sussex?
The coldest month in Sussex is January, with average low temperatures of -8°C. The average temperature during this period is around -5°C.
What is the wettest time of year in Sussex?
The wettest month in Sussex is April, with an average of 101mm of precipitation.
What is the driest time of year in Sussex?
The driest month in Sussex is February, with an average of 41mm of precipitation.
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