Average annual temperature is 26.0 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: 18.7 °C
Number of sunny days: 39 days
Number of rainy days: 326 days
Look at detailed online map of Cabeceras de Río Seco
* Weather data for Cabeceras de Río Seco 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) | 33.5 | 35.2 | 34.5 | 35.6 | 35.7 | 31.4 | 33.1 | 31.8 | 31.5 | 31.0 | 31.1 | 32.4 |
| Average daytime temperature (°C) | 30.7 | 34.1 | 31.5 | 33.3 | 32.4 | 29.5 | 29.9 | 29.5 | 29.7 | 28.7 | 28.9 | 31.0 |
| Average temperature (°C) | 25.4 | 27.7 | 26.2 | 27.4 | 27.2 | 25.7 | 25.7 | 25.5 | 25.5 | 24.8 | 24.9 | 26.0 |
| Average night temperature (°C) | 21.4 | 22.8 | 22.2 | 23.0 | 23.8 | 23.2 | 22.9 | 22.7 | 22.7 | 22.5 | 22.3 | 22.2 |
| Absolute minimum temperature (°C) | 18.7 | 20.8 | 20.2 | 21.8 | 22.0 | 22.3 | 22.2 | 21.4 | 21.5 | 21.9 | 21.5 | 19.9 |
| 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) | 10.6 | 11.1 | 10.5 | 11.2 | 9.9 | 8.4 | 8.7 | 8.3 | 9.2 | 6.8 | 8.3 | 10.2 |
| Precipitation (mm) | 89 | 6 | 130 | 64 | 213 | 330 | 311 | 375 | 259 | 628 | 406 | 80 |
| Sunny days | 3 | 18 | 6 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 8 |
| Rainy days | 28 | 10 | 25 | 29 | 30 | 30 | 30 | 31 | 30 | 31 | 29 | 23 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Cabeceras de Río Seco is at