Average annual temperature is 27.2 °C
Absolute maximum temperature: 38.1 °C
Absolute minimum temperature: 21.1 °C
Number of sunny days: 129 days
Number of rainy days: 236 days
Look at detailed online map of Provincia de Guanacaste
* Weather data for Provincia de Guanacaste 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) | 32.7 | 33.4 | 35.5 | 36.8 | 38.1 | 33.5 | 35.0 | 33.8 | 34.8 | 33.4 | 32.2 | 33.8 |
| Average daytime temperature (°C) | 30.8 | 31.8 | 33.3 | 34.7 | 35.0 | 31.3 | 32.2 | 32.0 | 32.8 | 30.3 | 30.3 | 30.9 |
| Average temperature (°C) | 26.7 | 27.2 | 27.7 | 28.7 | 29.0 | 26.7 | 27.6 | 27.1 | 27.3 | 25.6 | 26.1 | 27.1 |
| Average night temperature (°C) | 24.0 | 24.5 | 24.1 | 24.3 | 25.0 | 23.9 | 24.9 | 24.3 | 23.8 | 23.1 | 23.4 | 24.3 |
| Absolute minimum temperature (°C) | 21.7 | 23.7 | 21.1 | 22.1 | 23.2 | 22.5 | 22.1 | 22.1 | 22.4 | 22.0 | 21.8 | 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 | 12.4 | 12.6 | 12.7 | 12.7 | 12.5 | 12.2 | 11.9 | 11.6 | 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) | 9.5 | 9.7 | 10.2 | 11.0 | 9.8 | 8.5 | 9.1 | 8.7 | 9.8 | 7.4 | 8.9 | 9.7 |
| Precipitation (mm) | 3 | 3 | 84 | 26 | 130 | 294 | 212 | 264 | 175 | 572 | 250 | 10 |
| Sunny days | 21 | 21 | 20 | 20 | 8 | 1 | 3 | 4 | 5 | 0 | 3 | 23 |
| Rainy days | 10 | 7 | 11 | 10 | 23 | 29 | 28 | 27 | 25 | 31 | 27 | 8 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Provincia de Guanacaste is at