Best Time to Visit London

United Kingdom · weather by month, temperature and rainfall

Best monthsJune to September
HottestJuly · 23°C
ColdestJanuary · 2°C
WettestOctober · 76 mm

Weather-wise, June to September is the best time to visit London. July is the hottest month, with average highs of 23°C (73°F), while January is the coldest, with lows around 2°C (35°F). Rain is heaviest in October, at about 76 mm (3.0 in), and lightest in April, at 38 mm (1.5 in). January is the least comfortable month, mainly because of the cold.

London weather by month

-5°0°5°10°15°20°25°050100January: 62 mm rainFebruary: 54 mm rainMarch: 51 mm rainApril: 38 mm rainMay: 57 mm rainJune: 57 mm rainJuly: 57 mm rainAugust: 61 mm rainSeptember: 49 mm rainOctober: 76 mm rainNovember: 73 mm rainDecember: 72 mm rainJanuary: 7°CFebruary: 8°CMarch: 11°CApril: 14°CMay: 17°CJune: 21°CJuly: 23°CAugust: 22°CSeptember: 20°COctober: 16°CNovember: 11°CDecember: 8°CJanuary: 2°CFebruary: 2°CMarch: 3°CApril: 4°CMay: 7°CJune: 10°CJuly: 13°CAugust: 12°CSeptember: 11°COctober: 8°CNovember: 5°CDecember: 3°CJanFebMarAprMayJunJulAugSepOctNovDec mm°C
Avg high Avg low Rainfall (mm)
Jan7°C / 2°C62 mmPoorFeb8°C / 2°C54 mmFairMar11°C / 3°C51 mmFairApr14°C / 4°C38 mmGoodMay17°C / 7°C57 mmExcellentJun21°C / 10°C57 mmExcellentJul23°C / 13°C57 mmExcellentAug22°C / 12°C61 mmExcellentSep20°C / 11°C49 mmExcellentOct16°C / 8°C76 mmGoodNov11°C / 5°C73 mmFairDec8°C / 3°C72 mmPoor

Monthly climate table

MonthHighLowRainRainy daysHumiditySun hrs/dayRating
January7°C 45°F2°C 35°F62 mm1493%2.3Poor 3.8
February8°C 47°F2°C 35°F54 mm1190%2.8Fair 4.8
March11°C 51°F3°C 37°F51 mm1286%3.5Fair 5.6
April14°C 57°F4°C 40°F38 mm1081%4.8Good 7.3
May17°C 63°F7°C 45°F57 mm1179%4.9Excellent 8.1
June21°C 69°F10°C 51°F57 mm1177%5.6Excellent 9.2
July23°C 73°F13°C 55°F57 mm1275%5.6Excellent 9.1
August22°C 72°F12°C 54°F61 mm1277%4.6Excellent 8.9
September20°C 68°F11°C 51°F49 mm1081%4.5Excellent 9.5
October16°C 60°F8°C 46°F76 mm1487%3.2Good 6.6
November11°C 51°F5°C 40°F73 mm1392%2.4Fair 4.9
December8°C 46°F3°C 37°F72 mm1394%2.1Poor 3.9

Frequently asked questions

When is the best time to visit London?

The best time to visit London is June to September, based on comfortable temperatures, low rainfall and plenty of sunshine.

What is the hottest month in London?

July is the hottest month in London, with an average high of 23°C (73°F).

What is the coldest month in London?

January is the coldest month in London, with an average low of 2°C (35°F).

What is the rainiest month in London?

October is the wettest month, with about 76 mm (3.0 in) of rain. April is the driest, with 38 mm (1.5 in).

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