Weather on September 15 in London

Historical weather data for September 15 in London, United Kingdom

Avg High19°C (66°F)
Avg Low11°C (51°F)
Warmest200319°C
Coldest197210°C

Based on 55 years of data from HAMPSTEAD

About This Date

September 15th in London, United Kingdom typically brings mild fall weather, with average highs around 19°C and lows near 11°C. Over 55 years of records, the warmest September 15th was in 2003 (19°C average), while the coldest was 1972 (10°C) — a 17°F range across recorded history. Rain or other precipitation has occurred on about 36% of September 15th dates historically, with the wettest September 15th recording 5.32" of rain. The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.

The last decade has been 2.5°F warmer on this date compared to 20-30 years ago.

Planning for September 15th in London? Great weather for outdoor activities. Consider bringing rain gear or an umbrella.

Year by Year History

YearHighLowPrecip
202518°C (65°F)12°C (53°F)0.02"
202420°C (68°F)9°C (48°F)0"
202326°C (78°F)12°C (53°F)0"
202220°C (68°F)13°C (55°F)0"
202122°C (72°F)14°C (57°F)0"
202023°C (74°F)13°C (56°F)0"
2019--10°C (50°F)0"
201823°C (73°F)8°C (47°F)0.02"
2017--7°C (45°F)0"
201617°C (62°F)16°C (60°F)3.08"
201514°C (58°F)9°C (49°F)0.1"
201423°C (74°F)12°C (54°F)0"
201314°C (58°F)7°C (44°F)0.34"
201218°C (64°F)8°C (47°F)0"
201122°C (71°F)8°C (46°F)0"
201017°C (63°F)8°C (47°F)0"
200918°C (65°F)13°C (55°F)5.32"
200818°C (64°F)9°C (49°F)0"
200721°C (69°F)8°C (47°F)0"
200622°C (71°F)14°C (57°F)0"
200520°C (68°F)13°C (56°F)1.23"
200418°C (65°F)8°C (46°F)0"
200327°C (81°F)12°C (53°F)0"
200218°C (65°F)13°C (55°F)0"
200117°C (63°F)10°C (50°F)0"
200017°C (62°F)16°C (60°F)4.22"
199918°C (64°F)12°C (53°F)0.44"
199816°C (61°F)10°C (50°F)0.19"
199721°C (70°F)8°C (47°F)0"
199621°C (70°F)8°C (47°F)--
199517°C (62°F)11°C (51°F)0.03"
199413°C (56°F)9°C (48°F)1.11"
199314°C (57°F)8°C (46°F)0.39"
199218°C (64°F)9°C (48°F)0"
199119°C (66°F)13°C (56°F)0.35"
199016°C (61°F)11°C (52°F)0"
198921°C (70°F)14°C (57°F)0.12"
198818°C (65°F)8°C (47°F)0.02"
198719°C (67°F)9°C (48°F)0"
198613°C (56°F)8°C (46°F)0.49"
198518°C (65°F)9°C (48°F)0"
198417°C (63°F)12°C (53°F)0"
198316°C (60°F)13°C (55°F)0.32"
198224°C (75°F)13°C (55°F)0"
198117°C (63°F)13°C (55°F)0"
198019°C (67°F)13°C (55°F)0"
197919°C (67°F)6°C (42°F)0"
197822°C (71°F)11°C (51°F)0"
197715°C (59°F)8°C (46°F)0"
197614°C (58°F)10°C (50°F)0"
197514°C (58°F)6°C (42°F)0"
197421°C (70°F)10°C (50°F)0.47"
197322°C (72°F)13°C (55°F)0.16"
197215°C (59°F)5°C (41°F)0"
197116°C (61°F)10°C (50°F)0"

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