Average annual temperature is 26.4 °C
Absolute maximum temperature: 37.0 °C
Absolute minimum temperature: 19.8 °C
Number of sunny days: 56 days
Number of rainy days: 309 days
Look at detailed online map of San Ramón de Río Blanco
* Weather data for San Ramón de Río Blanco 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) | 34.7 | 35.7 | 35.9 | 36.2 | 37.0 | 32.4 | 33.2 | 32.4 | 31.9 | 30.9 | 31.8 | 33.0 |
| Average daytime temperature (°C) | 31.3 | 34.7 | 32.3 | 34.1 | 33.1 | 29.8 | 30.4 | 29.9 | 30.1 | 29.1 | 29.5 | 31.4 |
| Average temperature (°C) | 25.7 | 28.1 | 26.6 | 28.0 | 27.8 | 26.0 | 26.2 | 25.9 | 25.9 | 25.2 | 25.4 | 26.3 |
| Average night temperature (°C) | 21.5 | 22.8 | 22.4 | 23.4 | 24.2 | 23.5 | 23.3 | 23.1 | 23.2 | 22.9 | 22.7 | 22.6 |
| Absolute minimum temperature (°C) | 19.8 | 21.4 | 20.4 | 22.3 | 22.0 | 22.7 | 22.1 | 21.7 | 22.3 | 22.4 | 21.6 | 20.2 |
| 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) | 10.7 | 11.1 | 10.7 | 11.3 | 10.1 | 8.4 | 8.9 | 8.4 | 9.1 | 7.0 | 8.3 | 10.2 |
| Precipitation (mm) | 71 | 5 | 165 | 72 | 232 | 384 | 358 | 408 | 316 | 617 | 323 | 67 |
| Sunny days | 9 | 23 | 7 | 2 | 2 | 0 | 2 | 0 | 1 | 0 | 1 | 9 |
| Rainy days | 22 | 5 | 24 | 28 | 29 | 30 | 29 | 31 | 29 | 31 | 29 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Ramón de Río Blanco is at