London Climate: Sunshine Hours, Temperature & Best Time to Visit

London climate month by month: sunshine hours, temperature, rain and day length from weather station data 1991–2020. Best time to visit: July, August. Sunniest month: July.

  • 1,675 hours of sunshine a year – 1.0 times as much as London. Warmest is July at 24 °C by day.
  • Best time to visit: July, August

Sunshine and temperature in London month by month

  • January: 2.0 h Sun/day (61 h), Daytime high 8 °C, Night 3 °C, Rain 59 mm, Holiday score 17
  • February: 2.8 h Sun/day (79 h), Daytime high 9 °C, Night 3 °C, Rain 45 mm, Holiday score 22
  • March: 4.0 h Sun/day (124 h), Daytime high 12 °C, Night 4 °C, Rain 39 mm, Holiday score 27
  • April: 5.9 h Sun/day (177 h), Daytime high 15 °C, Night 6 °C, Rain 42 mm, Holiday score 35
  • May: 6.7 h Sun/day (208 h), Daytime high 18 °C, Night 9 °C, Rain 46 mm, Holiday score 51
  • June: 6.9 h Sun/day (208 h), Daytime high 22 °C, Night 12 °C, Rain 47 mm, Holiday score 65
  • July: 7.0 h Sun/day (218 h), Daytime high 24 °C, Night 14 °C, Rain 46 mm, Holiday score 75
  • August: 6.5 h Sun/day (202 h), Daytime high 23 °C, Night 14 °C, Rain 53 mm, Holiday score 70
  • September: 5.2 h Sun/day (157 h), Daytime high 20 °C, Night 12 °C, Rain 50 mm, Holiday score 52
  • October: 3.7 h Sun/day (115 h), Daytime high 16 °C, Night 9 °C, Rain 65 mm, Holiday score 27
  • November: 2.4 h Sun/day (71 h), Daytime high 12 °C, Night 5 °C, Rain 67 mm, Holiday score 18
  • December: 1.8 h Sun/day (55 h), Daytime high 9 °C, Night 3 °C, Rain 57 mm, Holiday score 17
  • Temperature: station London (22 km) · Sunshine: station London (22 km) · Rain: station London (22 km). Averages 1991–2020, source: Deutscher Wetterdienst (CLIMAT station data, CC BY 4.0) and NASA POWER; single years differ.

Questions

  • When is the best time to visit London? By sunshine, warmth and rain the best months are July, August. Sunniest is July with 218 hours of sunshine, warmest July at 24 °C.
  • How many hours of sunshine does London get a year? About 1,675 hours – 1.0 times as many as London (1,675 hours).
  • When does it rain most in London? In November, with 67 mm on average. The driest month is March.
  • How warm is London in January and July? In January the average daytime high is 8 °C, in July 24 °C.