San José weather by month › May
San José in May: weather and what to expect
Wet. May falls in San José’s rainy season, with about 15.7 in (399 mm) of rain. For drier weather, go in January to March.
May weather in San José
Daytime high81°F 27°C
Night low62°F 17°C
Rain16 in 399 mm
AirHumid
SunSunny
In May, San José averages highs of 81°F (27°C) and lows of 62°F (17°C), with 15.7 in (399 mm) of rain. The air feels humid and the sun is sunny. 1991–2020 averages, not a forecast.
Pack: light clothes and sun protection, a rain jacket or umbrella.
Places with the same weather in May
Match out of 100 for May, one city per country.
Jan · Feb · Mar · Apr · May · Jun · Jul · Aug · Sep · Oct · Nov · Dec