Best time to visit London

Usually the most comfortable: June, July and August. Typical weather over 2001–2020, not a forecast.

1. January: cold, high 7°, low 1°, about 59 mm of rain, comfort 56 out of 100
   JJan
2. February: cold, high 7°, low 1°, about 51 mm of rain, comfort 58 out of 100
   FFeb
3. March: cold, high 10°, low 2°, about 48 mm of rain, comfort 68 out of 100
   MMar
4. April: cool, high 14°, low 4°, about 41 mm of rain, comfort 79 out of 100
   AApr
5. May: cool, high 17°, low 7°, about 57 mm of rain, comfort 87 out of 100
   MMay
6. June: pleasant, high 20°, low 10°, about 61 mm of rain, comfort 95 out of 100
   JJun
7. July: pleasant, high 22°, low 13°, about 63 mm of rain, comfort 95 out of 100
   JJul
8. August: pleasant, high 22°, low 12°, about 68 mm of rain, comfort 95 out of 100
   AAug
9. September: pleasant, high 19°, low 10°, about 45 mm of rain, comfort 95 out of 100
   SSep
10. October: cool, high 15°, low 7°, about 69 mm of rain, comfort 79 out of 100
    OOct
11. November: cold, high 10°, low 4°, about 67 mm of rain, comfort 65 out of 100
    NNov
12. December: cold, high 7°, low 2°, about 64 mm of rain, comfort 56 out of 100
    DDec

Taller is more comfortable. The brighter bars are the best months; the filled label is this month.

Comfort uses the typical daytime high (most comfortable at 20 to 28°C) and the typical rainfall (most comfortable under 1 mm a day), averaged over 2001–2020. Highs and lows are worked out from the monthly average temperature and the average daily swing, so they are close, not exact. It is not a forecast. Humidity, crowds, prices and festivals are not included, and a mountain or coast can differ from its half-degree grid cell.