Average annual temperature is 20.2 °C
Absolute maximum temperature: 31.5 °C
Absolute minimum temperature: 10.2 °C
Number of sunny days: 45 days
Number of rainy days: 320 days
Look at detailed online map of San José Sur
* Weather data for San José Sur Costa Rica is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.4 | 30.5 | 30.5 | 30.6 | 31.5 | 28.2 | 29.0 | 29.4 | 26.7 | 25.6 | 26.8 | 29.0 |
| Average daytime temperature (°C) | 25.7 | 28.7 | 27.2 | 28.4 | 27.7 | 24.6 | 25.4 | 25.1 | 25.0 | 23.6 | 24.2 | 26.5 |
| Average temperature (°C) | 19.3 | 21.6 | 20.2 | 20.8 | 21.0 | 20.1 | 20.5 | 20.1 | 19.9 | 19.3 | 19.6 | 20.6 |
| Average night temperature (°C) | 14.7 | 16.3 | 15.2 | 15.3 | 16.5 | 17.1 | 17.2 | 16.9 | 16.2 | 16.7 | 16.5 | 16.6 |
| Absolute minimum temperature (°C) | 11.6 | 13.7 | 10.2 | 11.5 | 13.8 | 14.8 | 15.3 | 15.3 | 13.9 | 15.6 | 14.2 | 12.5 |
| 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) | 11.6 | 11.8 | 12.1 | 12.3 | 12.6 | 12.7 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 11.5 |
| 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 | 11.0 | 10.0 | 10.9 | 9.5 | 8.0 | 8.4 | 8.5 | 8.9 | 6.6 | 7.9 | 10.2 |
| Precipitation (mm) | 101 | 4 | 101 | 98 | 210 | 260 | 268 | 357 | 244 | 597 | 352 | 65 |
| Sunny days | 8 | 19 | 5 | 4 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 5 |
| Rainy days | 23 | 9 | 26 | 26 | 29 | 30 | 30 | 31 | 30 | 31 | 29 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San José Sur is at