Average annual temperature is 21.6 °C
Absolute maximum temperature: 33.2 °C
Absolute minimum temperature: 13.6 °C
Number of sunny days: 86
Number of rainy days: 279
Number of snow days:
Average annual precipitation: 3582 mm
Look at detailed online map of Alajuela
* Weather data for Alajuela Costa Rica is based on climate observations for 2023 year
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.6 | 31.3 | 31.7 | 32.9 | 33.2 | 29.9 | 29.2 | 29.3 | 29 | 26.9 | 29.7 | 29.7 |
| Average daytime temperature (°C) | 27.4 | 28.6 | 28.4 | 30.5 | 29.6 | 26.2 | 26.9 | 26.7 | 26.7 | 24.9 | 25.6 | 27.6 |
| Average temperature (°C) | 21.3 | 22.7 | 21.9 | 23 | 22.8 | 21.4 | 21.6 | 21.2 | 21 | 20.5 | 20.7 | 21.7 |
| Average night temperature (°C) | 17 | 18.7 | 17.5 | 17.7 | 18.5 | 18.2 | 18 | 17.6 | 17.1 | 17.8 | 17.4 | 17.6 |
| Absolute minimum temperature (°C) | 13.8 | 16 | 14.5 | 13.6 | 16.5 | 16.1 | 16.3 | 16 | 14.6 | 16.7 | 16 | 14.4 |
| Jan | Feb | Mar | Apr | Maggio | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.7 | 11.9 | 12.2 | 12.5 | 12.7 | 12.7 | 12.7 | 12.6 | 12.3 | 12 | 11.8 | 11.6 |
| Daylight mean duration (h) | 11.6 | 11.8 | 12.1 | 12.4 | 12.6 | 12.7 | 12.7 | 12.5 | 12.2 | 11.9 | 11.7 | 11.6 |
| Daylight minimum duration (h) | 11.6 | 11.7 | 11.9 | 12.2 | 12.5 | 12.7 | 12.6 | 12.3 | 12.1 | 11.8 | 11.6 | 11.5 |
| Sunshine mean duration (h) | 10.2 | 10.8 | 9.9 | 10.8 | 9.7 | 8.1 | 8.5 | 8.7 | 8.6 | 6.4 | 7.9 | 10.2 |
| Precipitation (mm) | 43 | 0 | 98 | 43 | 269 | 369 | 492 | 542 | 520 | 732 | 410 | 62 |
| Sunny days | 13 | 28 | 11 | 9 | 4 | 4 | 1 | 16 | ||||
| Rainy days | 18 | 20 | 21 | 27 | 30 | 27 | 31 | 30 | 31 | 29 | 15 |
The largest precipitation sum in Alajuela is at