Vacaville Weather in May

During May, Vacaville experiences high daytime temperatures of 27°C (81°F) and cooler nights around 11°C (52°F). Rainfall is low, averaging just 12 mm (0.5 in) for the month.

Rainfall in Vacaville in May

You can expect rain on roughly 3 days based on historical data, averaging 12 mm (0.5 in) for the month. The occasional light shower is possible, but rain is rarely an issue this month.

Temperature in Vacaville in May

May tends to be one of the excellent months in Vacaville, with 27°C (81°F) in the afternoon and 11°C (52°F) overnight. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 11°C (52°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.

Sunshine in Vacaville in May

There are approximately 406 hours of sunshine this month, resulting in mostly clear days.

So this is a great month to visit if you prefer dry days with pleasant temperatures.