Average annual temperature is 27.6 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: 22.2 °C
Number of sunny days: 85 days
Number of rainy days: 280 days
Look at detailed online map of Ilusión
* Weather data for Ilusión 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) | 33.4 | 34.6 | 34.5 | 35.7 | 35.8 | 32.5 | 33.9 | 33.1 | 32.9 | 32.2 | 32.1 | 33.1 |
| Average daytime temperature (°C) | 31.2 | 33.4 | 32.4 | 33.9 | 33.3 | 30.4 | 31.0 | 30.7 | 31.0 | 29.5 | 29.9 | 31.5 |
| Average temperature (°C) | 27.1 | 28.5 | 27.9 | 28.9 | 28.8 | 27.2 | 27.5 | 27.2 | 27.2 | 26.4 | 26.6 | 27.8 |
| Average night temperature (°C) | 23.8 | 24.7 | 24.6 | 25.2 | 25.7 | 25.1 | 25.2 | 25.0 | 24.9 | 24.7 | 24.4 | 24.9 |
| Absolute minimum temperature (°C) | 22.2 | 23.1 | 23.3 | 23.6 | 24.1 | 24.0 | 23.9 | 23.9 | 23.7 | 23.5 | 23.5 | 22.9 |
| 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 | 10.6 | 11.2 | 10.0 | 8.8 | 8.9 | 8.8 | 9.2 | 7.6 | 8.6 | 10.2 |
| Precipitation (mm) | 63 | 0 | 136 | 25 | 263 | 481 | 430 | 433 | 282 | 626 | 375 | 58 |
| Sunny days | 12 | 27 | 15 | 10 | 3 | 0 | 1 | 0 | 0 | 0 | 1 | 16 |
| Rainy days | 19 | 1 | 16 | 20 | 28 | 30 | 30 | 31 | 30 | 31 | 29 | 15 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Ilusión is at