Measurements:
°C
°F
CURRENT WEATHER
00:55
London
62°F
W 8 mph
Feels like: 62°F
Precip: 26%
World Resorts United Kingdom London Weather

7 Day Weather Forecast

09.29
tue
DAY
76°F
NW 12 mph
precip
4%
NIGHT
70°F
NW 9 mph
precip
17%
09.30
wed
DAY
72°F
NE 11 mph
precip
29%
NIGHT
62°F
N 4 mph
precip
8%
10.01
thu
DAY
68°F
E 7 mph
precip
2%
NIGHT
60°F
NE 6 mph
precip
16%
10.02
fri
DAY
68°F
NE 5 mph
precip
11%
NIGHT
64°F
E 2 mph
precip
9%
10.03
sat
DAY
68°F
NE 2 mph
precip
4%
NIGHT
60°F
NE 4 mph
precip
8%
10.04
sun
DAY
62°F
E 5 mph
precip
13%
NIGHT
58°F
NW 7 mph
precip
33%
10.05
mon
DAY
60°F
S 14 mph
precip
17%
NIGHT
56°F
S 11 mph
precip
18%

London Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for London was 18.7°F. The maximum and minimum values were 17.6°F and 19.5°F respectively.

London on the Weather Map

Best Time to Visit London
The most sunny months:
July 9 days
May 8 days
April 8 days
The most warm months:
July 76.4 °F
August 75.6 °F
June 71.9 °F
Warmest sea temperature:
August 68.5 °F
July 66.9 °F
September 65.0 °F
The most cold months:
January 43.9 °F
February 46.8 °F
December 47.1 °F
The most rainy months:
December 5 days
August 4 days
October 4 days
The most windy months:
February 11 mph
December 11 mph
January 10 mph
more details