July is the hottest month in Snowdonia with an average temperature of 28°C (82°F) and the coldest is January at 15°C (59°F) with the most daily sunshine hours at 10 in May. The wettest month is August with an average of 186mm of rain. The best month to swim in the sea is in August when the average sea temperature is 25°C (77°F).
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Sunrise 07:33
Sunset 16:28
Sunrise 07:33
Sunset 16:28