Average annual temperature is 17.9 °C
Absolute maximum temperature: 25.3 °C
Absolute minimum temperature: 9.9 °C
Number of sunny days: 15 days
Number of rainy days: 350 days
Look at detailed online map of San Chirí
* Weather data for San Chirí 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) | 20.9 | 20.4 | 23.4 | 24.1 | 24.7 | 25.2 | 24.6 | 25.3 | 24.9 | 25.0 | 24.0 | 22.4 |
| Average daytime temperature (°C) | 18.9 | 18.9 | 20.4 | 21.4 | 22.7 | 22.8 | 22.2 | 22.6 | 22.7 | 23.3 | 21.9 | 20.4 |
| Average temperature (°C) | 15.9 | 15.8 | 16.8 | 17.3 | 18.8 | 18.8 | 18.5 | 18.8 | 18.7 | 19.1 | 18.5 | 17.6 |
| Average night temperature (°C) | 13.6 | 13.7 | 14.1 | 13.7 | 15.8 | 15.6 | 15.9 | 15.8 | 15.5 | 16.2 | 15.9 | 15.7 |
| Absolute minimum temperature (°C) | 11.8 | 11.5 | 11.4 | 9.9 | 14.2 | 14.0 | 14.9 | 13.5 | 13.7 | 14.8 | 14.2 | 13.5 |
| 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 | 11.6 |
| 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) | 9.5 | 9.7 | 8.8 | 10.1 | 9.4 | 8.4 | 8.1 | 8.8 | 9.3 | 7.5 | 8.2 | 8.6 |
| Precipitation (mm) | 163 | 166 | 132 | 50 | 197 | 178 | 208 | 183 | 154 | 260 | 289 | 144 |
| Sunny days | 1 | 0 | 2 | 9 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 |
| Rainy days | 30 | 28 | 29 | 21 | 31 | 28 | 31 | 31 | 30 | 31 | 30 | 30 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Chirí is at