Avg high
23°C
Avg low
14°C
Rainfall
49 mm
Rain days
7.8
Sunshine
10.4 h/day
Daylight
14.4 h
What to pack for London in August
- t-shirts and light layers
- a light jacket for evenings
- a packable rain layer
Humidity averages 73%; max daily wind around 21 km/h.
How August compares
Best months in London: June–August. See the full best time to visit London guide.
London in August: the details
In August, London sees average daytime highs of 23°C (73°F) and overnight lows of 14°C (57°F). Rainfall totals roughly 49 mm across 7.8 rainy days, and the sun shines about 10.4 hours per day with 14.4 hours of daylight mid-month. Relative humidity averages 73%.
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for London, United Kingdom (51.51, -0.13) — see our methodology. Actual conditions vary year to year.
Where should you go next month?
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