Measurements:
°C
°F
CURRENT WEATHER
21:27
London
60°F
E 11 mph
Feels like: 58°F
Precip: 4%
World Resorts United Kingdom London Weather

7 Day Weather Forecast

09.08
tue
DAY
60°F
NE 4 mph
precip
63%
NIGHT
58°F
E 11 mph
precip
7%
09.09
wed
DAY
62°F
SE 9 mph
precip
10%
NIGHT
58°F
E 4 mph
precip
3%
09.10
thu
DAY
66°F
NE 8 mph
precip
11%
NIGHT
62°F
NE 7 mph
precip
20%
09.11
fri
DAY
72°F
E 8 mph
precip
18%
NIGHT
62°F
S 4 mph
precip
4%
09.12
sat
DAY
70°F
NE 7 mph
precip
14%
NIGHT
66°F
NE 9 mph
precip
18%
09.13
sun
DAY
70°F
E 9 mph
precip
16%
NIGHT
66°F
N 2 mph
precip
8%
09.14
mon
DAY
74°F
E 6 mph
precip
2%
NIGHT
70°F
NE 4 mph
precip
8%

London Sea Water Temperature in September, °F

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for London was 17.2°F. The maximum and minimum values were 15.1°F and 18.8°F respectively.

London on the Weather Map

Best Time to Visit London
The most sunny months:
July 9 days
September 9 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 64.9 °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