Average annual temperature is 26.2 °C
Absolute maximum temperature: 33.1 °C
Absolute minimum temperature: 20.2 °C
Number of sunny days: 40 days
Number of rainy days: 325 days
Look at detailed online map of San Rafael Sur
* Weather data for San Rafael 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) | 30.4 | 32.1 | 32.5 | 32.4 | 33.1 | 30.8 | 31.1 | 30.9 | 30.7 | 30.4 | 29.9 | 30.5 |
| Average daytime temperature (°C) | 29.0 | 31.2 | 30.6 | 31.0 | 31.0 | 29.4 | 29.3 | 29.2 | 29.6 | 29.1 | 28.6 | 29.6 |
| Average temperature (°C) | 25.2 | 27.1 | 26.4 | 27.0 | 27.2 | 26.1 | 26.1 | 26.0 | 26.0 | 25.5 | 25.5 | 26.2 |
| Average night temperature (°C) | 22.2 | 23.3 | 22.9 | 23.7 | 24.5 | 23.9 | 23.9 | 23.7 | 23.9 | 23.2 | 23.3 | 23.5 |
| Absolute minimum temperature (°C) | 20.2 | 22.0 | 20.4 | 22.1 | 23.3 | 22.8 | 22.9 | 22.3 | 22.6 | 22.3 | 22.1 | 21.5 |
| 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) | 10.3 | 11.0 | 10.1 | 10.8 | 9.5 | 7.9 | 7.7 | 7.8 | 8.4 | 7.1 | 7.8 | 10.3 |
| Precipitation (mm) | 51 | 7 | 85 | 69 | 272 | 339 | 428 | 402 | 414 | 750 | 429 | 68 |
| Sunny days | 2 | 14 | 7 | 5 | 4 | 0 | 1 | 0 | 0 | 0 | 0 | 7 |
| Rainy days | 29 | 14 | 24 | 25 | 27 | 30 | 30 | 31 | 30 | 31 | 30 | 24 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Rafael Sur is at