Average temperatures, rainfall and packing tips for London, United Kingdom in August
August in London is typically warm, with average daytime highs around 23°C and nights near 14°C. It is usually the warmest month of the year in London.
Rainfall is light in August: roughly 29 mm across the whole month.
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In August, London averages a daytime high of about 23°C and a night-time low of around 14°C, based on recent historical data. That makes it the warmest month of the year there.
Rainfall is light in August: roughly 29 mm across the whole month.
August is one of the most comfortable months to visit London - daytime temperatures sit in a pleasant range and it's a good pick for sightseeing and time outdoors.