August is the hottest month in Aliso Viejo with an average temperature of 23°C (73°F) and the coldest is December at 14°C (56°F) with the most daily sunshine hours at 13 in August. The wettest month is February with an average of 63.8mm of rain. The best month to swim in the sea is in August when the average sea temperature is 21°C (69°F).
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Sunrise 06:29
Sunset 16:45
Sunrise 06:29
Sunset 16:45