Brighton · days 1-14 from weather models · days 15-30 typical range (1991-2020)
🗺️ 14-day forecast map
Brighton & nearby cities — press play
Real forecast data for every city shown, from the same weather models as the city pages, updated several times a day. Icons show each day’s overall weather; the figure is the daytime maximum.
Next 14 days at a glance
From the model forecast
Warmest day
21°
Sun 20 Sep
Coldest night
14°
Wed 16 Sep
Days with rain
6 / 14
of 14 forecast days
Best day out
Sun 20 Sep
mild, dry & light wind
The next 4 weekends
For planning ahead
Sat 12 – Sun 13 Sep
20° 17°
91% rain risk
Sat 19 – Sun 20 Sep
21° 16°
6% rain risk
Sat 26 – Sun 27 Sep
28° 17°
typical range
Sat 3 – Sun 4 Oct
23° 12°
typical range
30 days — Brighton
14 real + 16 synthesised
Sat · Today Sunny
19°17°14%⌄
Wind22 mph W
Gusts24 mph
UV index4 – Moderate
Chance of rain14%
Sunrise06:31
Sunset19:22
Sun · Tomorrow Cloudy
20°18°18.3 mm⌄
Wind23 mph W
Gusts32 mph
UV index3 – Moderate
Chance of rain91%
Sunrise06:33
Sunset19:19
Monday 14/9 Cloudy
20°18°22%⌄
Wind14 mph SW
Gusts19 mph
UV index4 – Moderate
Chance of rain22%
Sunrise06:34
Sunset19:17
Tuesday 15/9 Sunny
21°16°0.9 mm⌄
Wind20 mph NW
Gusts30 mph
UV index6 – High
Chance of rain50%
Sunrise06:36
Sunset19:15
Wednesday 16/9 Sunny
18°14°0.1 mm⌄
Wind20 mph W
Gusts31 mph
UV index5 – Moderate
Chance of rain17%
Sunrise06:37
Sunset19:13
Thursday 17/9 Showers
18°15°1.2 mm⌄
Wind24 mph W
Gusts28 mph
UV index5 – Moderate
Chance of rain57%
Sunrise06:39
Sunset19:10
Friday 18/9 Sunny
18°14°6%⌄
Wind17 mph W
Gusts21 mph
UV index5 – Moderate
Chance of rain6%
Sunrise06:40
Sunset19:08
Saturday 19/9 Sunny
18°16°6%⌄
Wind10 mph E
Gusts15 mph
UV index5 – Moderate
Chance of rain6%
Sunrise06:42
Sunset19:06
Sunday 20/9 Sunny
21°17°6%⌄
Wind16 mph E
Gusts27 mph
UV index6 – High
Chance of rain6%
Sunrise06:43
Sunset19:03
Monday 21/9 Sunny
21°18°13%⌄
Wind21 mph SE
Gusts34 mph
UV index5 – Moderate
Chance of rain13%
Sunrise06:45
Sunset19:01
Tuesday 22/9 Showers
21°16°18.8 mm⌄
Wind23 mph W
Gusts34 mph
UV index4 – Moderate
Chance of rain85%
Sunrise06:46
Sunset18:59
Wednesday 23/9 Sunny
18°15°4.5 mm⌄
Wind32 mph S
Gusts38 mph
UV index5 – Moderate
Chance of rain68%
Sunrise06:48
Sunset18:57
Thursday 24/9 Showers
18°17°8.3 mm⌄
Wind31 mph S
Gusts39 mph
UV index5 – Moderate
Chance of rain82%
Sunrise06:50
Sunset18:54
Friday 25/9 Showers
18°15°1.3 mm⌄
Wind25 mph W
Gusts28 mph
UV index5 – Moderate
Chance of rain57%
Sunrise06:51
Sunset18:52
Saturday 26/9 Rain (climate average)
27°17°6.6 mm⌄
Day≈24–30°
Night≈14–20°
Rain≈55 mm / September
(climate average)Typical range for these dates · 1991–2020
Sunday 27/9 Sunny intervals (climate average)
28°18°20%⌄
Day≈25–31°
Night≈15–21°
Rain≈55 mm / September
(climate average)Typical range for these dates · 1991–2020
Monday 28/9 Sunny intervals (climate average)
27°18°20%⌄
Day≈24–30°
Night≈15–21°
Rain≈55 mm / September
(climate average)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climate average)
25°16°6.8 mm⌄
Day≈22–28°
Night≈13–19°
Rain≈55 mm / September
(climate average)Typical range for these dates · 1991–2020
Wednesday 30/9 Sunny intervals (climate average)
24°15°20%⌄
Day≈21–27°
Night≈12–18°
Rain≈55 mm / September
(climate average)Typical range for these dates · 1991–2020
Thursday 1/10 Sunny intervals (climate average)
16°10°20%⌄
Day≈13–19°
Night≈7–13°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Friday 2/10 Rain (climate average)
18°12°4.0 mm⌄
Day≈15–21°
Night≈9–15°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Saturday 3/10 Sunny intervals (climate average)
19°12°20%⌄
Day≈16–22°
Night≈9–15°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Sunday 4/10 Sunny intervals (climate average)
23°14°20%⌄
Day≈20–26°
Night≈11–17°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Monday 5/10 Rain (climate average)
22°14°6.7 mm⌄
Day≈19–25°
Night≈11–17°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Tuesday 6/10 Sunny intervals (climate average)
22°14°20%⌄
Day≈19–25°
Night≈11–17°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Wednesday 7/10 Sunny intervals (climate average)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Thursday 8/10 Rain (climate average)
18°12°4.2 mm⌄
Day≈15–21°
Night≈9–15°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Friday 9/10 Sunny intervals (climate average)
17°11°20%⌄
Day≈14–20°
Night≈8–14°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Saturday 10/10 Sunny intervals (climate average)
20°13°20%⌄
Day≈17–23°
Night≈10–16°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
Sunday 11/10 Rain (climate average)
22°14°6.0 mm⌄
Day≈19–25°
Night≈11–17°
Rain≈50 mm / October
(climate average)Typical range for these dates · 1991–2020
How does the long-range forecast work?
Days 1-14 are a real forecast from weather models. Days 15-30 are season-typical values based on 1991-2020 climate averages — good for planning, NOT an exact forecast that far ahead.
Days 1-14: Fetched live from weather models (UKV, ECMWF, GFS) with statistical correction. Reliability ~85% for days 1-3, ~60% for days 7-10, ~45% for days 11-14.
Days 15-30: A real forecast does not exist that far ahead (a chaotic system). Instead we show season-typical values: the month’s average max/min from 1991-2020 climate data (London baseline with latitude correction for Brighton), with mild weekly variation.
Use: "Roughly how warm is it usually in London in the last week of July?" — a good question for days 15-30. "Will it rain on 27 May?" — no serious forecast can say.
Forecasts from the UK Met Office UKV model, global weather models and official UK environmental data · Met Office UKV model · Environment Agency · Copernicus CAMS · NOAA