Climate of San José, Costa Rica
Area-weighted average across San José. For where people actually live and travel, see the cities below.
San José, a subdivision of Costa Rica, has a mild oceanic climate on average. Area-weighted monthly temperatures across the whole territory range from 19.6°C / 67.3°F in December to 21.5°C / 70.7°F in April, with rainfall from 39 mm / 1.5 in to 448 mm / 17.6 in depending on the season (2757 mm / 108.5 in total across the year). See the city listed below for point-value climate at specific locations — these often differ from the area-weighted average, especially in geographically diverse subdivisions.
| Month | Temperature | Rainfall | Matches |
|---|---|---|---|
| January | 19.9°C67.8°F | 55 mm2.2″ | — |
| February | 20.2°C68.4°F | 39 mm1.5″ | Sunny & Warm, Sunny & Mild |
| March | 21.1°C70°F | 47 mm1.9″ | Sunny & Mild |
| April | 21.5°C70.7°F | 128 mm5″ | — |
| May | 21.1°C70°F | 322 mm12.7″ | — |
| June | 20.6°C69.1°F | 335 mm13.2″ | — |
| July | 20.6°C69.1°F | 265 mm10.4″ | — |
| August | 20.5°C68.9°F | 334 mm13.1″ | — |
| September | 20.2°C68.4°F | 400 mm15.7″ | — |
| October | 19.9°C67.8°F | 448 mm17.6″ | — |
| November | 19.7°C67.5°F | 265 mm10.4″ | — |
| December | 19.6°C67.3°F | 119 mm4.7″ | — |
Frequently asked questions
What is the best time to visit San José?
The best months to visit San José, Costa Rica for sunny, dry weather are February, March. The warmest month is April at an area-wide average of 21.5°C / 70.7°F, and the driest is February with about 39 mm / 1.5 in of rainfall.
What is the climate of San José?
San José, Costa Rica has area-weighted monthly average temperatures ranging from 19.6°C / 67.3°F in December to 21.5°C / 70.7°F in April. Annual rainfall averages about 2757 mm / 108.5 in, with the wettest month being October (448 mm / 17.6 in) and the driest February (39 mm / 1.5 in). Because this is an area average across the whole subdivision, local city values can differ substantially.
What is the hottest month in San José?
The hottest month in San José is April, with an area-wide average temperature of 21.5°C / 70.7°F.
What is the coldest month in San José?
The coldest month in San José is December, with an area-wide average temperature of 19.6°C / 67.3°F.
When does it rain most in San José?
The wettest month in San José is October, averaging about 448 mm / 17.6 in of rainfall. The driest is February with about 39 mm / 1.5 in.