Weather on September 23 in London
Historical weather data for September 23 in London, United Kingdom
Based on 55 years of data from HAMPSTEAD
About This Date
September 23rd in London, United Kingdom typically brings mild fall weather, with average highs around 18°C and lows near 10°C. Over 55 years of records, the warmest September 23rd was in 2006 (18°C average), while the coldest was 1984 (9°C) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 67% of September 23rd dates historically, with the wettest September 23rd recording 2.5" 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 September 23rd in London? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.
Year by Year History
| Year | High | Low | Precip |
|---|---|---|---|
| 2025 | 17°C (63°F) | 3°C (37°F) | 0.04" |
| 2024 | 18°C (65°F) | -- | 2.01" |
| 2023 | 19°C (66°F) | 8°C (47°F) | 0.03" |
| 2022 | 19°C (66°F) | -- | 0.25" |
| 2021 | 23°C (74°F) | 8°C (47°F) | 0.02" |
| 2020 | 15°C (59°F) | 13°C (56°F) | 1.44" |
| 2019 | 19°C (66°F) | 13°C (55°F) | 2.48" |
| 2018 | 15°C (59°F) | -- | 0.79" |
| 2017 | 21°C (70°F) | 11°C (51°F) | 0" |
| 2016 | -- | 9°C (48°F) | 0" |
| 2015 | 17°C (62°F) | 7°C (44°F) | 0.48" |
| 2014 | 18°C (65°F) | 8°C (46°F) | 0.22" |
| 2013 | 22°C (71°F) | 13°C (56°F) | 0.02" |
| 2012 | 14°C (58°F) | 7°C (45°F) | 2.5" |
| 2011 | 21°C (69°F) | 8°C (47°F) | 0" |
| 2010 | 13°C (55°F) | 13°C (56°F) | 0.88" |
| 2009 | 19°C (67°F) | 13°C (56°F) | 0" |
| 2008 | 16°C (61°F) | 11°C (52°F) | 0.11" |
| 2007 | 21°C (69°F) | 12°C (54°F) | 0.75" |
| 2006 | 23°C (73°F) | 13°C (56°F) | 0.09" |
| 2005 | 20°C (68°F) | 13°C (55°F) | 0.21" |
| 2004 | 15°C (59°F) | 14°C (58°F) | 0.18" |
| 2003 | 18°C (64°F) | 7°C (44°F) | 0" |
| 2002 | 17°C (63°F) | 9°C (49°F) | 0" |
| 2001 | 17°C (63°F) | 8°C (46°F) | 0.09" |
| 2000 | 17°C (62°F) | 14°C (58°F) | 0" |
| 1999 | 18°C (65°F) | 13°C (56°F) | 0.05" |
| 1998 | 22°C (72°F) | 11°C (52°F) | 0" |
| 1997 | 18°C (64°F) | 9°C (49°F) | 0" |
| 1996 | 17°C (63°F) | 9°C (49°F) | -- |
| 1995 | 16°C (60°F) | 10°C (50°F) | 0.64" |
| 1994 | 18°C (64°F) | 8°C (47°F) | 0.02" |
| 1993 | 17°C (62°F) | 9°C (48°F) | 0.01" |
| 1992 | 17°C (62°F) | 11°C (52°F) | 0.67" |
| 1991 | 17°C (63°F) | 11°C (51°F) | 0" |
| 1990 | 16°C (60°F) | 8°C (47°F) | 0.15" |
| 1989 | 22°C (72°F) | 10°C (50°F) | 0" |
| 1988 | 16°C (60°F) | 10°C (50°F) | 0" |
| 1987 | 17°C (62°F) | 11°C (51°F) | 0.48" |
| 1986 | 16°C (60°F) | 8°C (47°F) | 0.01" |
| 1985 | 17°C (63°F) | 13°C (56°F) | 0" |
| 1984 | 12°C (54°F) | 7°C (45°F) | 0.81" |
| 1983 | 22°C (72°F) | 8°C (47°F) | 0.02" |
| 1982 | 16°C (61°F) | 9°C (48°F) | 0.66" |
| 1981 | 16°C (61°F) | 8°C (46°F) | 0.01" |
| 1980 | 18°C (65°F) | 12°C (54°F) | 0.12" |
| 1979 | 15°C (59°F) | 4°C (40°F) | 0.06" |
| 1978 | 22°C (72°F) | 9°C (49°F) | 0" |
| 1977 | 16°C (60°F) | 10°C (50°F) | 0" |
| 1976 | 17°C (62°F) | 11°C (51°F) | 0.33" |
| 1975 | 17°C (63°F) | 11°C (52°F) | 0.05" |
| 1974 | 14°C (58°F) | 8°C (47°F) | 1.45" |
| 1973 | 17°C (62°F) | 6°C (42°F) | 0" |
| 1972 | 13°C (55°F) | 8°C (47°F) | 0" |
| 1971 | 18°C (64°F) | 13°C (55°F) | 0.68" |