Weather on August 18 in London
Historical weather data for August 18 in London, United Kingdom
Based on 56 years of data from HAMPSTEAD
About This Date
August 18th in London, United Kingdom typically brings pleasant summer weather, with average highs around 23°C and lows near 13°C. Over 56 years of records, the warmest August 18th was in 1996 (24°C average), while the coldest was 1977 (13°C) — a 20°F range across recorded history. Rain or other precipitation has occurred on about 46% of August 18th dates historically, with the wettest August 18th recording 0.55" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for August 18th in London? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip (mm) |
|---|---|---|---|
| 2026 | 24°C (76°F) | 17°C (62°F) | 0 mm |
| 2025 | 23°C (74°F) | -- | 0 mm |
| 2024 | 24°C (76°F) | 13°C (55°F) | 0 mm |
| 2023 | 24°C (76°F) | 18°C (64°F) | 0 mm |
| 2022 | 28°C (82°F) | 18°C (64°F) | 14 mm |
| 2021 | -- | 16°C (60°F) | 1 mm |
| 2020 | 20°C (68°F) | 14°C (58°F) | 0 mm |
| 2019 | 21°C (69°F) | 12°C (53°F) | 1 mm |
| 2018 | 25°C (77°F) | 14°C (58°F) | 0 mm |
| 2017 | 19°C (67°F) | 14°C (57°F) | 1 mm |
| 2016 | -- | 16°C (60°F) | 0 mm |
| 2015 | 20°C (68°F) | 13°C (55°F) | 0 mm |
| 2014 | 18°C (64°F) | 10°C (50°F) | 1 mm |
| 2013 | 23°C (74°F) | 15°C (59°F) | 0 mm |
| 2012 | 29°C (84°F) | 19°C (66°F) | 0 mm |
| 2011 | 21°C (70°F) | 12°C (54°F) | 14 mm |
| 2010 | 21°C (69°F) | 12°C (53°F) | 2 mm |
| 2009 | 28°C (82°F) | 13°C (55°F) | 0 mm |
| 2008 | 20°C (68°F) | 13°C (56°F) | 0 mm |
| 2007 | 19°C (66°F) | 13°C (56°F) | 13 mm |
| 2006 | 20°C (68°F) | 14°C (58°F) | 4 mm |
| 2005 | 28°C (82°F) | 14°C (58°F) | 6 mm |
| 2004 | 22°C (71°F) | 16°C (61°F) | 13 mm |
| 2003 | 22°C (72°F) | 16°C (61°F) | 2 mm |
| 2002 | 25°C (77°F) | 16°C (61°F) | 1 mm |
| 2001 | 21°C (69°F) | 15°C (59°F) | 11 mm |
| 2000 | 22°C (72°F) | 13°C (55°F) | 3 mm |
| 1999 | 17°C (63°F) | 13°C (56°F) | 5 mm |
| 1998 | 24°C (75°F) | 14°C (57°F) | 0 mm |
| 1997 | 29°C (84°F) | 17°C (63°F) | -- |
| 1996 | 31°C (87°F) | 17°C (62°F) | -- |
| 1995 | 30°C (86°F) | 17°C (63°F) | 0 mm |
| 1994 | 22°C (71°F) | 10°C (50°F) | 1 mm |
| 1993 | 24°C (76°F) | 12°C (53°F) | 0 mm |
| 1992 | 21°C (70°F) | 12°C (53°F) | 0 mm |
| 1991 | 24°C (75°F) | 9°C (49°F) | 0 mm |
| 1990 | 20°C (68°F) | 12°C (54°F) | 9 mm |
| 1989 | 26°C (79°F) | 9°C (49°F) | 0 mm |
| 1988 | 21°C (69°F) | 13°C (56°F) | 3 mm |
| 1987 | 24°C (76°F) | 17°C (62°F) | 0 mm |
| 1986 | 18°C (65°F) | 14°C (57°F) | 5 mm |
| 1985 | 20°C (68°F) | 12°C (54°F) | 3 mm |
| 1984 | 28°C (82°F) | 13°C (55°F) | 0 mm |
| 1983 | 28°C (82°F) | 14°C (57°F) | 0 mm |
| 1982 | 18°C (64°F) | 13°C (55°F) | 7 mm |
| 1981 | 21°C (69°F) | 12°C (53°F) | 0 mm |
| 1980 | 19°C (66°F) | 13°C (56°F) | 0 mm |
| 1979 | 18°C (65°F) | 12°C (53°F) | 0 mm |
| 1978 | 24°C (75°F) | 12°C (53°F) | 0 mm |
| 1977 | 13°C (55°F) | 13°C (55°F) | 0 mm |
| 1976 | 25°C (77°F) | 14°C (57°F) | 0 mm |
| 1975 | 22°C (72°F) | 12°C (54°F) | 0 mm |
| 1974 | 19°C (67°F) | 11°C (52°F) | 4 mm |
| 1973 | 23°C (74°F) | 13°C (56°F) | 0 mm |
| 1972 | 21°C (69°F) | 9°C (48°F) | 0 mm |
| 1971 | 26°C (78°F) | 11°C (51°F) | 0 mm |