London · United Kingdom

London in August: every year compared

In August, London averages highs of 21.6 °C and lows of 13.8 °C, with 62 mm of precipitation. The warmest August was 1997 (20.3 °C), the coldest 1956 (14.4 °C).

Avg. highAvg. high 21.6 °C

Avg. lowAvg. low 13.8 °C

PrecipitationPrecipitation 62 mm

Rainy daysRainy days 10

Day by day through August

Normal high and low for each day of August in London.

Normal high and low, day by dayNormal 1991–2020

Every August in London, ranked

86 months of August since 1940. The last one, 2025, ranks 11 of 86 (+0.8 °C vs normal).

194019832025

2025 · 18.4 °C · +0.8 °C vs normal · rank 11 of 86

Warmest years

1199720.3 °C
2202220.1 °C
3194720.0 °C
4199519.5 °C
5200319.5 °C

Coldest years

1195614.4 °C
2198614.7 °C
3196315.0 °C
4195415.1 °C
5198515.3 °C

All 86 years in a table

Year	Mean temperature	Daytime highs	Night lows	Precipitation	Hot days (30 °C+)	Rainy days
2025	18.4 °C	23.0 °C	13.9 °C	27 mm	0 days	6 days
2024	18.5 °C	22.7 °C	14.2 °C	36 mm	1 day	7 days
2023	17.4 °C	21.3 °C	13.7 °C	56 mm	0 days	10 days
2022	20.1 °C	24.9 °C	15.4 °C	39 mm	3 days	8 days
2021	16.7 °C	20.1 °C	13.5 °C	57 mm	0 days	11 days
2020	19.2 °C	23.2 °C	15.6 °C	78 mm	5 days	13 days
2019	18.4 °C	23.1 °C	13.9 °C	38 mm	3 days	8 days
2018	18.3 °C	22.5 °C	14.1 °C	83 mm	2 days	10 days
2017	16.9 °C	20.7 °C	13.1 °C	67 mm	0 days	15 days
2016	18.5 °C	22.8 °C	14.4 °C	42 mm	1 day	6 days
2015	17.3 °C	21.0 °C	13.5 °C	104 mm	0 days	13 days
2014	16.2 °C	19.9 °C	12.5 °C	98 mm	0 days	10 days
2013	18.0 °C	22.3 °C	13.9 °C	63 mm	1 day	7 days
2012	17.9 °C	21.8 °C	14.2 °C	54 mm	0 days	13 days
2011	16.6 °C	20.4 °C	13.2 °C	75 mm	0 days	9 days
2010	16.5 °C	19.9 °C	13.2 °C	111 mm	0 days	14 days
2009	18.0 °C	22.1 °C	14.0 °C	28 mm	0 days	4 days
2008	17.1 °C	20.3 °C	14.3 °C	68 mm	0 days	16 days
2007	16.7 °C	20.4 °C	12.8 °C	26 mm	0 days	7 days
2006	17.0 °C	20.5 °C	13.6 °C	75 mm	0 days	14 days
2005	17.0 °C	21.5 °C	12.5 °C	65 mm	0 days	10 days
2004	18.4 °C	22.3 °C	14.9 °C	120 mm	0 days	17 days
2003	19.5 °C	24.1 °C	14.9 °C	14 mm	3 days	4 days
2002	17.8 °C	21.7 °C	14.2 °C	57 mm	0 days	9 days
2001	17.9 °C	21.9 °C	14.2 °C	69 mm	0 days	13 days
2000	17.7 °C	21.7 °C	14.0 °C	38 mm	0 days	8 days
1999	17.3 °C	21.1 °C	13.7 °C	111 mm	0 days	14 days
1998	17.1 °C	21.5 °C	12.6 °C	28 mm	0 days	2 days
1997	20.3 °C	24.5 °C	16.4 °C	66 mm	0 days	16 days
1996	17.1 °C	21.2 °C	13.3 °C	82 mm	0 days	11 days
1995	19.5 °C	24.3 °C	14.9 °C	1 mm	1 day	0 days
1994	17.2 °C	21.0 °C	13.6 °C	38 mm	0 days	10 days
1993	15.8 °C	19.7 °C	11.6 °C	37 mm	0 days	6 days
1992	16.4 °C	19.7 °C	13.1 °C	102 mm	0 days	13 days
1991	17.9 °C	22.0 °C	13.9 °C	34 mm	0 days	4 days
1990	19.1 °C	24.0 °C	14.4 °C	31 mm	4 days	5 days
1989	17.6 °C	22.3 °C	12.9 °C	18 mm	0 days	5 days
1988	16.1 °C	19.9 °C	12.1 °C	32 mm	0 days	9 days
1987	16.5 °C	20.2 °C	12.7 °C	80 mm	0 days	9 days
1986	14.7 °C	18.2 °C	11.3 °C	81 mm	0 days	14 days
1985	15.3 °C	18.5 °C	11.9 °C	69 mm	0 days	14 days
1984	17.9 °C	22.5 °C	13.6 °C	56 mm	0 days	9 days
1983	18.1 °C	22.9 °C	13.7 °C	20 mm	0 days	4 days
1982	16.9 °C	20.4 °C	13.3 °C	43 mm	0 days	12 days
1981	17.2 °C	21.5 °C	12.8 °C	37 mm	0 days	3 days
1980	16.8 °C	20.4 °C	13.1 °C	56 mm	0 days	10 days
1979	15.5 °C	19.2 °C	11.8 °C	46 mm	0 days	11 days
1978	15.5 °C	18.9 °C	12.0 °C	46 mm	0 days	11 days
1977	15.7 °C	18.9 °C	12.5 °C	111 mm	0 days	15 days
1976	17.9 °C	22.8 °C	13.1 °C	26 mm	0 days	2 days
1975	19.0 °C	23.7 °C	14.2 °C	31 mm	2 days	9 days
1974	16.0 °C	19.8 °C	12.0 °C	72 mm	0 days	10 days
1973	17.4 °C	21.6 °C	13.3 °C	35 mm	1 day	10 days
1972	15.8 °C	19.5 °C	12.0 °C	36 mm	0 days	7 days
1971	16.5 °C	19.8 °C	13.4 °C	80 mm	0 days	16 days
1970	16.3 °C	20.4 °C	12.5 °C	60 mm	0 days	10 days
1969	16.8 °C	20.5 °C	13.2 °C	56 mm	0 days	13 days
1968	15.9 °C	19.3 °C	12.9 °C	88 mm	0 days	13 days
1967	16.4 °C	20.3 °C	12.7 °C	58 mm	0 days	8 days
1966	15.6 °C	19.6 °C	11.6 °C	75 mm	0 days	11 days
1965	15.9 °C	19.9 °C	12.0 °C	42 mm	0 days	11 days
1964	16.5 °C	20.4 °C	12.4 °C	21 mm	0 days	8 days
1963	15.0 °C	18.5 °C	11.5 °C	76 mm	0 days	14 days
1962	15.4 °C	19.0 °C	11.8 °C	48 mm	0 days	12 days
1961	16.6 °C	20.6 °C	12.8 °C	45 mm	0 days	10 days
1960	15.8 °C	19.9 °C	12.1 °C	46 mm	0 days	12 days
1959	17.9 °C	22.2 °C	13.9 °C	36 mm	0 days	7 days
1958	16.4 °C	20.0 °C	13.2 °C	66 mm	0 days	17 days
1957	16.1 °C	19.8 °C	12.4 °C	63 mm	0 days	11 days
1956	14.4 °C	18.0 °C	11.1 °C	110 mm	0 days	18 days
1955	18.2 °C	22.7 °C	13.8 °C	28 mm	0 days	5 days
1954	15.1 °C	18.7 °C	11.7 °C	56 mm	0 days	12 days
1953	16.9 °C	20.9 °C	12.6 °C	32 mm	1 day	8 days
1952	17.1 °C	20.6 °C	13.6 °C	73 mm	0 days	12 days
1951	15.7 °C	19.2 °C	12.0 °C	62 mm	0 days	13 days
1950	16.5 °C	20.6 °C	12.5 °C	43 mm	0 days	10 days
1949	17.8 °C	22.6 °C	12.9 °C	17 mm	0 days	4 days
1948	16.2 °C	19.9 °C	12.5 °C	53 mm	0 days	12 days
1947	20.0 °C	25.5 °C	14.9 °C	3 mm	3 days	1 day
1946	15.9 °C	19.7 °C	12.2 °C	80 mm	0 days	14 days
1945	16.5 °C	20.5 °C	12.6 °C	52 mm	0 days	9 days
1944	18.1 °C	23.0 °C	14.0 °C	29 mm	0 days	6 days
1943	16.7 °C	20.8 °C	12.7 °C	43 mm	0 days	9 days
1942	17.5 °C	21.3 °C	13.7 °C	44 mm	1 day	8 days
1941	15.6 °C	18.9 °C	12.6 °C	65 mm	0 days	15 days
1940	17.0 °C	21.2 °C	12.9 °C	6 mm	0 days	2 days

August records

Hottest day

35.0 °C

August 13, 2026 estimate

Coldest night

6.4 °C

August 30, 1964 estimate

Wettest day

35 mm

August 17, 1946 estimate

The weather on your birthday in London

Any day since 1940: high, low, rain, snow, and how warm it was compared with the same date in every other year.

Questions & answers

How warm is London in August?

Highs average 21.6 °C and lows 13.8 °C. A typical August brings 1 hot days (30 °C or more) and 0 frost days.

Does it rain a lot in London in August?

About 62 mm falls in August, over some 10 days with at least 1 mm. The wettest August was 2004 (120 mm), the driest 1995 (1 mm).

What was the warmest August in London?

1997, with a mean temperature of 20.3 °C. The coldest was 1956 (14.4 °C). The last one, 2025, ranks 11 of 86.