Average annual temperature is 25.5 °C
Absolute maximum temperature: 37.4 °C
Absolute minimum temperature: 16.4 °C
Number of sunny days: 81 days
Number of rainy days: 284 days
Look at detailed online map of San José Costa Rica
* Weather data for San José Costa Rica El Salvador is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 34.0 | 35.1 | 35.7 | 35.9 | 37.4 | 33.3 | 34.6 | 34.7 | 34.3 | 31.1 | 32.6 | 33.6 |
| Average daytime temperature (°C) | 31.7 | 33.5 | 32.5 | 33.0 | 32.4 | 30.2 | 31.9 | 30.9 | 31.2 | 29.1 | 29.9 | 31.5 |
| Average temperature (°C) | 24.7 | 25.6 | 25.4 | 26.2 | 26.5 | 25.4 | 26.3 | 25.8 | 25.7 | 24.6 | 25.0 | 25.3 |
| Average night temperature (°C) | 19.9 | 20.1 | 20.9 | 21.8 | 22.6 | 22.5 | 22.8 | 22.8 | 22.4 | 22.0 | 21.8 | 21.1 |
| Absolute minimum temperature (°C) | 16.4 | 18.5 | 19.6 | 19.6 | 21.5 | 21.5 | 21.5 | 21.1 | 21.5 | 20.7 | 19.2 | 16.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.4 | 11.7 | 12.1 | 12.4 | 12.8 | 12.9 | 12.8 | 12.6 | 12.2 | 11.8 | 11.5 | 11.3 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.5 | 10.9 | 11.2 | 11.5 | 11.1 | 9.9 | 10.7 | 10.3 | 10.7 | 8.6 | 9.7 | 10.4 |
| Precipitation (mm) | 14 | 3 | 48 | 46 | 136 | 254 | 210 | 287 | 213 | 292 | 149 | 14 |
| Sunny days | 17 | 23 | 7 | 7 | 4 | 1 | 1 | 3 | 0 | 0 | 6 | 12 |
| Rainy days | 14 | 5 | 24 | 23 | 27 | 29 | 30 | 28 | 30 | 31 | 24 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San José Costa Rica is at