July is the hottest month in Ruislip with an average temperature of 18°C (64°F) and the coldest is January at 5°C (40°F) with the most daily sunshine hours at 7 in July. The wettest month is January with an average of 60mm of rain..
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Sunrise 07:31
Sunset 16:04
Sunrise 07:31
Sunset 16:04