London climate guide

Temperature in London (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
7°C maximum daytime temperature in January in London7
7°C maximum daytime temperature in February in London7
10°C maximum daytime temperature in March in London10
13°C maximum daytime temperature in April in London13
17°C maximum daytime temperature in May in London17
20°C maximum daytime temperature in June in London20
22°C maximum daytime temperature in July in London22
22°C maximum daytime temperature in August in London22
19°C maximum daytime temperature in September in London19
15°C maximum daytime temperature in October in London15
10°C maximum daytime temperature in November in London10
8°C maximum daytime temperature in December in London8
Min temperature (night-time)
2°C minimum night-time temperature in January in London2
2°C minimum night-time temperature in February in London2
3°C minimum night-time temperature in March in London3
5°C minimum night-time temperature in April in London5
8°C minimum night-time temperature in May in London8
11°C minimum night-time temperature in June in London11
13°C minimum night-time temperature in July in London13
13°C minimum night-time temperature in August in London13
11°C minimum night-time temperature in September in London11
8°C minimum night-time temperature in October in London8
4°C minimum night-time temperature in November in London4
2°C minimum night-time temperature in December in London2

Sunshine & Daylight in London

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
8 hours of daylight per day in January in London8
10 hours of daylight per day in February in London10
12 hours of daylight per day in March in London12
14 hours of daylight per day in April in London14
16 hours of daylight per day in May in London16
17 hours of daylight per day in June in London17
16 hours of daylight per day in July in London16
15 hours of daylight per day in August in London15
13 hours of daylight per day in September in London13
11 hours of daylight per day in October in London11
9 hours of daylight per day in November in London9
8 hours of daylight per day in December in London8

Rainfall in London

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
16 days with some rainfall in January in London16
12 days with some rainfall in February in London12
14 days with some rainfall in March in London14
14 days with some rainfall in April in London14
13 days with some rainfall in May in London13
11 days with some rainfall in June in London11
10 days with some rainfall in July in London10
12 days with some rainfall in August in London12
11 days with some rainfall in September in London11
13 days with some rainfall in October in London13
15 days with some rainfall in November in London15
14 days with some rainfall in December in London14
Average monthly rainfall (mm)
55 mm monthly rainfall in January in London55
37 mm monthly rainfall in February in London37
49 mm monthly rainfall in March in London49
47 mm monthly rainfall in April in London47
51 mm monthly rainfall in May in London51
52 mm monthly rainfall in June in London52
49 mm monthly rainfall in July in London49
56 mm monthly rainfall in August in London56
55 mm monthly rainfall in September in London55
58 mm monthly rainfall in October in London58
59 mm monthly rainfall in November in London59
59 mm monthly rainfall in December in London59

More climate for London

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 1 (Low) in January in London1
UV (maximum) index 1 (Low) in February in London1
UV (maximum) index 2 (Low) in March in London2
UV (maximum) index 4 (Moderate) in April in London4
UV (maximum) index 5 (Moderate) in May in London5
UV (maximum) index 6 (High) in June in London6
UV (maximum) index 6 (High) in July in London6
UV (maximum) index 5 (Moderate) in August in London5
UV (maximum) index 4 (Moderate) in September in London4
UV (maximum) index 2 (Low) in October in London2
UV (maximum) index 1 (Low) in November in London1
No UV (maximum) index in December in London0
Heat & Humidity
No heat & humidity in January in London0
No heat & humidity in February in London0
No heat & humidity in March in London0
No heat & humidity in April in London0
No heat & humidity in May in London0
No heat & humidity in June in London0
No heat & humidity in July in London0
No heat & humidity in August in London0
No heat & humidity in September in London0
No heat & humidity in October in London0
No heat & humidity in November in London0
No heat & humidity in December in London0

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

  • Top deals & discounts
  • London weather overview
  • More destinations
  • Best time to go to London
  • London 5-day weather forecast
  • London weather today - current conditions (last 24-hours)

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

The climate guide for London, UK shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

  • Save on selected NCP car parks in London in 2018/2019
  • Park for up to 6 hours for £15 & up to 12 hours for £20
  • Available at selected car parks across London

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

Where's hot in the UK?

Below are average maximum temperatures at popular destinations in the UK for next month - September. Select a destination to see the climate guide for all months of the year.

More destinations & map >>

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.