San José Province in Costa Rica sees its peak temperatures in April (26°C (79°F)) and its coolest in December (23°C (73°F)). For a full breakdown of what to expect throughout the year, we've put together a climate overview based on data from San José, the region's most visited city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
The climate in San José Province, especially in San José, remains comfortable all year, with average temperatures ranging from 23°C (73°F) to 25°C (77°F).
Precipitation in San José Province varies considerably throughout the year. The wettest conditions occur in October with 489 mm (19 in) of rain, while March stays relatively dry with 60 mm (2.4 in). The region experiences its rainy season during May, June, July, August, September, October and November, when monthly rainfall can range from 319 mm (13 in) to 489 mm (19 in).
Visitors hoping to maximize their time in the sun should consider planning their trip for March, when daylight hours are at their peak.
