Climate
Weather in Costa Rica, month by month
Best time to visit
For mild temperatures and less rain, January, February, March are usually the most comfortable months in Costa Rica (based on recent 2025 averages near San José).
Average weather by month
Daytime high / overnight low (Celsius and Fahrenheit), with average monthly rainfall, near San José. Tap a month for details.
| Jan | 25.3°C (78°F) / 15.8°C (60°F) · 30 mm |
|---|---|
| Feb | 26.2°C (79°F) / 15.9°C (61°F) · 17 mm |
| Mar | 27.1°C (81°F) / 16°C (61°F) · 52 mm |
| Apr | 26.8°C (80°F) / 16.7°C (62°F) · 142 mm |
| May | 26.1°C (79°F) / 16.9°C (62°F) · 315 mm |
| Jun | 24.4°C (76°F) / 16.6°C (62°F) · 462 mm |
| Jul | 24.9°C (77°F) / 17.1°C (63°F) · 354 mm |
| Aug | 24.9°C (77°F) / 16.5°C (62°F) · 441 mm |
| Sep | 24.9°C (77°F) / 16.4°C (62°F) · 464 mm |
| Oct | 24.3°C (76°F) / 16.2°C (61°F) · 547 mm |
| Nov | 23.8°C (75°F) / 16.5°C (62°F) · 357 mm |
| Dec | 24.6°C (76°F) / 16.3°C (61°F) · 73 mm |
Updated climate normals, 2025
Climate extremes in Costa Rica
| Warmest month | March · avg high 27.1°C (81°F) |
|---|---|
| Coolest month | January · avg low 15.8°C (60°F) |
| Wettest month | October · ~547 mm |
| Driest month | February · ~17 mm |
Common questions
When is the best time to visit Costa Rica?
For a balance of comfortable temperatures and lower rainfall, January, February, March tend to be the most pleasant months in Costa Rica.
What is the hottest month in Costa Rica?
March is the warmest month in Costa Rica, with average daytime highs around 27.1°C (81°F).
What is the coldest month in Costa Rica?
January is the coolest, with average overnight lows near 15.8°C (60°F).
Which month has the most rain in Costa Rica?
October is typically the wettest month (around 547 mm on average), while February is usually the driest.