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London Weather in May
London in May averages 20°C (68°F) during the day and 8°C (46°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in London in May
Records from the past 30 years suggest around 11 days of rain, with 102 mm (4 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in London in May
May in London sees highs of 20°C (68°F) and lows of 8°C (46°F) overnight. The difference between afternoon and evening temperatures is usually noticeable. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.If your ideal day consists of dry skies and pleasant temperatures, August and September typically offer the best circumstances for London.
London Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
20°C (68°F)
Chance of Rain
38%
Precipitation
102 mm (4 in)
Rainy days
11 days
London Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in London - and find the best time to visit.
Best Places in Canada in May
Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in London in May
Pleasant temperatures in May mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Prepare for significant rainfall with proper waterproof clothing and shoes.
What To Do in London in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling9/10 -
Walking9/10 -
Camping3/10 -
Outdoor sports9/10
London 3-Day Forecast
More climate data for London
See the full London climate overview or explore weather in Canada.
Popular in May
Where to go in May - average daytime high across popular destinations.
Niagara Falls
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