This reference page collects london climate: monthly averages in one place: annual mean temperature 10.4 C; warmest month Jul (17.6 C); coldest month Jan (4.1 C); wettest month Nov (2.45 mm/day). Figures are refreshed automatically by a scheduled build and cached locally so the page keeps its values even when the upstream API is temporarily unavailable. Use the table below for exact numbers, or the related pages for the same dataset for neighbouring periods and locations.
Annual mean temperature 10.4 C
Warmest month Jul (17.6 C)
Coldest month Jan (4.1 C)
Wettest month Nov (2.45 mm/day)
All-time record high 34.0 C
All-time record low -8.2 C
Annual precipitation 708 mm / year
Coordinates 51.5074, -0.1278
Population 8,980,000
Average monthly temperature and rainfall in London
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
4.1
2.10
13.0
-8.2
Feb
4.3
1.92
16.9
-7.7
Mar
6.1
1.61
19.4
-4.7
Apr
9.0
1.39
25.2
-2.9
May
12.3
1.76
26.5
-0.5
Jun
15.5
1.86
29.0
3.7
Jul
17.6
1.92
34.0
7.4
Aug
17.3
2.12
32.8
5.5
Sep
14.7
1.48
27.9
2.5
Oct
11.3
2.37
27.1
-2.4
Nov
7.3
2.45
17.7
-4.8
Dec
4.8
2.30
13.9
-5.9
What the London climate table shows
Values are multi-decadal climatological averages for the 51.5074, -0.1278 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Where does the data on london climate: monthly averages come from?
From a public open API that is queried automatically and cached after every successful run.
How often is london climate: monthly averages updated?
The build runs on a schedule, so values refresh at least daily and old pages stay live.