Costa Rica climate

Places covered
4
with monthly data
Warmest place
Puntarenas
year average 28 °C83 °F
Coolest place
San José
year average 20 °C69 °F
Wettest place
Guápiles
2,265 mm89 in a year

World Climates covers 4 places in Costa Rica. By annual mean temperature, the warmest is Puntarenas (28 °C83 °F) and the coolest is San José (20 °C69 °F). The wettest is Guápiles with 2,265 mm89 in of precipitation per year, the driest Upala with 1,466 mm58 in.

The most common climate types (Köppen classification computed from these averages) are tropical savanna (dry winter) (Aw, 3 places) and tropical rainforest (Af, 1 place).

The highest monthly average high is in Puntarenas (35 °C95 °F in March); the lowest monthly average low is in San José (15 °C60 °F in January).

Across the places in Costa Rica, the months that most often rank as the most comfortable are January, February and December (3, 2 and 3 of 4 places respectively).

Frequently asked questions

Which is the warmest place in Costa Rica?

By annual mean temperature, the warmest place in Costa Rica is Puntarenas at 28 °C83 °F. The coolest is San José at 20 °C69 °F.

Where does it rain the most in Costa Rica?

Guápiles gets the most precipitation, 2,265 mm89 in in an average year. The driest place is Upala with 1,466 mm58 in.

How many places in Costa Rica does this site cover?

World Climates has climate data for 4 places in Costa Rica. Each one has a page with monthly averages for temperature, rainfall, humidity and daylight.

When is the best time to visit Costa Rica?

It depends on the place. Across Costa Rica, the months that most often rank as the most comfortable are January, February and December. Check the page of each city for its own best months.

Climate of every place in Costa Rica

Annual averages, 2001–2025
PlaceYearMax highMin lowPrecip.
San José2027151,794
Puntarenas2835241,518
Guápiles2530212,265
Upala2734221,466

Year = annual mean temperature; max high = average high of the warmest month; min low = average low of the coldest month; precip. = annual total. Temperatures in °C°F, precipitation in mminches. Sorted by population.

Data: NASA POWER climatology 2001–2025 (MERRA-2 reanalysis, CERES satellite data) — grid-cell averages, not station records. Sources and method.