Average annual temperature is 26.1 °C
Absolute maximum temperature: 35.0 °C
Absolute minimum temperature: 20.9 °C
Number of sunny days: 41 days
Number of rainy days: 324 days
Look at detailed online map of Copalchí
* Weather data for Copalchí 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) | 29.0 | 29.6 | 31.8 | 35.0 | 34.9 | 31.8 | 31.7 | 31.9 | 31.6 | 31.5 | 30.1 | 30.1 |
| Average daytime temperature (°C) | 27.4 | 28.2 | 30.3 | 32.0 | 33.2 | 30.1 | 29.5 | 29.8 | 30.3 | 29.6 | 28.5 | 28.4 |
| Average temperature (°C) | 24.3 | 24.7 | 26.0 | 27.1 | 28.4 | 26.4 | 26.2 | 26.3 | 26.8 | 25.7 | 25.5 | 25.7 |
| Average night temperature (°C) | 22.1 | 22.1 | 22.8 | 23.2 | 24.7 | 24.1 | 24.1 | 24.0 | 24.3 | 23.4 | 23.5 | 23.5 |
| Absolute minimum temperature (°C) | 20.9 | 21.1 | 21.9 | 22.3 | 23.4 | 23.0 | 23.2 | 22.1 | 23.3 | 21.8 | 22.5 | 22.3 |
| 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 | 12.8 | 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) | 10.0 | 10.7 | 10.8 | 11.4 | 10.8 | 8.6 | 8.5 | 8.8 | 10.2 | 8.6 | 8.1 | 9.4 |
| Precipitation (mm) | 116 | 50 | 50 | 16 | 60 | 244 | 187 | 206 | 146 | 380 | 309 | 88 |
| Sunny days | 3 | 2 | 13 | 15 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 4 |
| Rainy days | 28 | 26 | 18 | 15 | 28 | 30 | 31 | 30 | 30 | 31 | 30 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Copalchí is at