Our verdict
The best time to visit London is May-October
The warmest month of the year in London is July, where the average temperature gets to around 22℃ (72℉), but temperatures can reach as high as 27℃ (80℉) on the hottest days in summer. The weather at night in the winter, which is around January-time, can get down to a minimum of -1℃ (31℉).
If you want to get the most out of your time visiting London, or you’re just afraid of the dark, the days in July are usually the longest between sunrise and sunset. To stay dry, avoid travelling to London in June – It’s the wettest month of the year.
Keep reading to find out more detailed information about the seasons and climate in London, as well as our favourite tools to help you find the best options for transport, accommodation, and much more.
Quick links: Fast facts / Seasons / Average temperatures / Monthly climate / FAQs / Map
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London seasons
Before you continue, it’s important to know when the seasons are in London as they might be different to yours depending on where in the world you’re travelling from. London is in the Northern Hemisphere, so the seasons fall during these months:
| Season | Months |
|---|---|
| Summer | June to August |
| Autumn/fall | September to November |
| Winter | December to February |
| Spring | March to May |
Average temperatures in London
If the temperature is a big factor for you to help you decide when to visit, the chart below shows the average minimum and maximum temperatures in London for each month side-by-side so you can easily see the difference in weather throughout the year. To see the temperatures in both Celsius (°C) and Fahrenheit (°F), hover or tap the shaded boxes on the graph.
London climate by month
If you already have a rough idea about which months you might want to travel, the section below shows a detailed breakdown of the climate in London for each month so you can see if it all suits your wants and needs. Scroll down, or use the quick menu below to jump to your preferred month.
Jump to:
London in January
- Average temperature: 4℃ (40℉)
- Average high temperature: 7℃ (44℉)
- Average low temperature: 2℃ (36℉)
- Average humidity: 87%
- Average sunny days: 17 days
- Average rainfall: 23mm (1") over 11 days
- Average snow days: 2 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in January, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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London in February
- Average temperature: 5℃ (41℉)
- Average high temperature: 8℃ (46℉)
- Average low temperature: 3℃ (37℉)
- Average humidity: 84%
- Average sunny days: 15 days
- Average rainfall: 30mm (1") over 11 days
- Average snow days: 3 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in February, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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London in March
- Average temperature: 7℃ (45℉)
- Average high temperature: 11℃ (51℉)
- Average low temperature: 4℃ (39℉)
- Average humidity: 80%
- Average sunny days: 16 days
- Average rainfall: 24mm (1") over 12 days
- Average snow days: 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in March, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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London in April
- Average temperature: 10℃ (50℉)
- Average high temperature: 14℃ (58℉)
- Average low temperature: 6℃ (42℉)
- Average humidity: 76%
- Average sunny days: 15 days
- Average rainfall: 22mm (1") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in April, make sure you pack a warm jacket or coat.
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London in May
- Average temperature: 13℃ (55℉)
- Average high temperature: 17℃ (62℉)
- Average low temperature: 8℃ (47℉)
- Average humidity: 75%
- Average sunny days: 14 days
- Average rainfall: 26mm (1") over 14 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in May, make sure you pack a warm jacket or coat.
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London in June
- Average temperature: 15℃ (60℉)
- Average high temperature: 20℃ (67℉)
- Average low temperature: 11℃ (51℉)
- Average humidity: 77%
- Average sunny days: 13 days
- Average rainfall: 41mm (2") over 15 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in June, make sure you pack a warm jacket or coat.
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London in July
- Average temperature: 18℃ (64℉)
- Average high temperature: 22℃ (72℉)
- Average low temperature: 13℃ (56℉)
- Average humidity: 73%
- Average sunny days: 13 days
- Average rainfall: 35mm (1") over 16 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in July, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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London in August
- Average temperature: 18℃ (64℉)
- Average high temperature: 22℃ (71℉)
- Average low temperature: 14℃ (57℉)
- Average humidity: 73%
- Average sunny days: 16 days
- Average rainfall: 29mm (1") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in August, make sure you pack a light jumper or hoodie for the evenings and some light clothes for the daytime.
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London in September
- Average temperature: 15℃ (59℉)
- Average high temperature: 19℃ (66℉)
- Average low temperature: 11℃ (52℉)
- Average humidity: 76%
- Average sunny days: 18 days
- Average rainfall: 26mm (1") over 10 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in September, make sure you pack a warm jacket or coat.
London in October
- Average temperature: 12℃ (54℉)
- Average high temperature: 15℃ (59℉)
- Average low temperature: 9℃ (48℉)
- Average humidity: 82%
- Average sunny days: 17 days
- Average rainfall: 29mm (1") over 12 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in October, make sure you pack a warm jacket or coat.
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London in November
- Average temperature: 8℃ (46℉)
- Average high temperature: 10℃ (51℉)
- Average low temperature: 6℃ (43℉)
- Average humidity: 86%
- Average sunny days: 15 days
- Average rainfall: 34mm (1") over 13 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in November, make sure you pack a warm jacket or coat.
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London in December
- Average temperature: 6℃ (42℉)
- Average high temperature: 8℃ (46℉)
- Average low temperature: 4℃ (38℉)
- Average humidity: 88%
- Average sunny days: 18 days
- Average rainfall: 37mm (1") over 11 days
- Average snow days: 1 days
of pure sunshine
of showers or rain
What to pack: If you’re heading to London in December, make sure you pack a thick snow/winter jacket, thermals and some extra layers as it's always very cold.
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