San José Weather in May

May is one of the excellent months to visit San José, with daytime temperatures of 21°C (70°F) and lows of 11°C (52°F) at night. Do note that quite a bit of rainfall is typical, averaging around 91 mm (3.6 in).

Rainfall in San José in May

Expect around 7 days of rain based on historical data, with 91 mm (3.6 in) average. When rain does fall this month, it tends to come down hard. The low number of rain days makes each shower more significant.

Temperature in San José in May

If you're visiting San José in May, expect excellent temperatures with highs of 21°C (70°F) and overnight lows of 11°C (52°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights drop to around 11°C (52°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit San José.