Average annual temperature is 23.0 °C
Absolute maximum temperature: 32.9 °C
Absolute minimum temperature: 13.0 °C
Number of sunny days: 80 days
Number of rainy days: 285 days
Look at detailed online map of San José Costa Rica
* Weather data for San José Costa Rica Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.8 | 32.1 | 31.3 | 31.3 | 32.9 | 30.6 | 30.8 | 30.0 | 29.6 | 29.7 | 30.7 | 30.8 |
| Average daytime temperature (°C) | 28.5 | 29.8 | 29.4 | 30.1 | 30.8 | 28.8 | 28.3 | 28.1 | 27.8 | 27.4 | 28.2 | 28.0 |
| Average temperature (°C) | 21.6 | 22.6 | 22.9 | 23.7 | 24.8 | 24.1 | 23.4 | 23.3 | 22.9 | 22.7 | 22.8 | 21.4 |
| Average night temperature (°C) | 16.5 | 17.6 | 17.6 | 18.5 | 20.0 | 20.7 | 19.7 | 19.7 | 19.0 | 19.2 | 19.1 | 16.9 |
| Absolute minimum temperature (°C) | 14.0 | 15.0 | 14.8 | 14.4 | 18.1 | 18.8 | 17.7 | 18.7 | 17.5 | 17.7 | 16.8 | 13.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.3 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.4 | 10.7 | 11.0 | 11.2 | 11.2 | 10.3 | 9.4 | 9.7 | 9.9 | 9.4 | 10.0 | 10.2 |
| Precipitation (mm) | 9 | 7 | 25 | 43 | 71 | 178 | 310 | 353 | 271 | 201 | 63 | 17 |
| Sunny days | 15 | 15 | 12 | 11 | 5 | 0 | 0 | 0 | 0 | 0 | 5 | 17 |
| Rainy days | 16 | 13 | 19 | 19 | 26 | 30 | 31 | 31 | 30 | 31 | 25 | 14 |
| 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