Brighton Weather

Brighton has a temperate climate: its Köppen climate classification is Cfb. It is characterised by cool summers, and cool winter with frequent cloudy and rainy periods. Average rainfall levels increase as the land rises: the 1958–1990 mean was 740 millimetres (29 in) on the seafront and about 1,000 millimetres (39 in) at the top of the South Downs above Brighton. Storms caused serious damage in 1703, 1806, 1824, 1836, 1848, 1850, 1896, 1910 and 1987. Heavy snow is rare, but particularly severe falls were recorded in 1881 and 1967.

Average Temperature
Jan
43 °F
6 °C
Feb
50 °F
10 °C
Mar
52 °F
11 °C
Apr
54 °F
12 °C
May
59 °F
15 °C
Jun
63 °F
17 °C
Jul
66 °F
19 °C
Aug
68 °F
20 °C
Sep
64 °F
18 °C
Oct
59 °F
15 °C
Nov
50 °F
10 °C
Dec
50 °F
10 °C
Humidity
Jan
63%
Feb
67%
Mar
64%
Apr
61%
May
64%
Jun
69%
Jul
67%
Aug
67%
Sep
65%
Oct
69%
Nov
68%
Dec
68%
Rain
Jan
22mm
Feb
29mm
Mar
32mm
Apr
17mm
May
25mm
Jun
132mm
Jul
40mm
Aug
29mm
Sep
55mm
Oct
57mm
Nov
78mm
Dec
76mm
Clouds
Jan
68%
Feb
61%
Mar
65%
Apr
63%
May
54%
Jun
64%
Jul
58%
Aug
57%
Sep
56%
Oct
83%
Nov
81%
Dec
67%
Air quality US AQI
Jan
46
Feb
55
Mar
55
Apr
71
May
58
Jun
41
Jul
30
Aug
28
Sep
25
Oct
33
Nov
40
Dec
41
Sun
Jan
1UVI
Feb
2UVI
Mar
2UVI
Apr
4UVI
May
5UVI
Jun
5UVI
Jul
5UVI
Aug
4UVI
Sep
4UVI
Oct
2UVI
Nov
1UVI
Dec
1UVI