Average annual temperature is 18.8 °C
Absolute maximum temperature: 25.5 °C
Absolute minimum temperature: 11.5 °C
Number of sunny days: 6 days
Number of rainy days: 359 days
Look at detailed online map of El Duan
* Weather data for El Duan 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) | 22.5 | 21.6 | 23.2 | 24.6 | 24.9 | 25.3 | 24.3 | 25.5 | 25.1 | 25.1 | 23.7 | 23.0 |
| Average daytime temperature (°C) | 20.4 | 20.5 | 21.3 | 22.1 | 23.7 | 23.8 | 22.7 | 23.2 | 23.4 | 23.1 | 22.2 | 21.1 |
| Average temperature (°C) | 17.2 | 17.1 | 17.8 | 18.1 | 19.8 | 20.0 | 19.4 | 19.7 | 19.7 | 19.6 | 19.2 | 18.4 |
| Average night temperature (°C) | 14.4 | 14.2 | 14.7 | 14.4 | 16.6 | 16.7 | 16.8 | 16.7 | 16.6 | 16.9 | 16.6 | 16.0 |
| Absolute minimum temperature (°C) | 12.4 | 11.9 | 12.1 | 11.5 | 14.7 | 15.3 | 15.8 | 14.9 | 15.1 | 15.5 | 14.7 | 13.7 |
| 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) | 8.6 | 8.4 | 7.9 | 9.2 | 9.1 | 8.1 | 8.0 | 8.7 | 9.2 | 7.3 | 7.4 | 7.7 |
| Precipitation (mm) | 189 | 123 | 146 | 89 | 152 | 91 | 229 | 228 | 56 | 323 | 445 | 172 |
| Sunny days | 1 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Rainy days | 30 | 28 | 31 | 28 | 29 | 30 | 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 El Duan is at