Average annual temperature is 25.0 °C
Absolute maximum temperature: 33.3 °C
Absolute minimum temperature: 20.0 °C
Number of sunny days: 54 days
Number of rainy days: 311 days
Look at detailed online map of Fortuna
* Weather data for Fortuna 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) | 31.7 | 32.7 | 33.1 | 33.3 | 33.1 | 30.3 | 31.1 | 30.9 | 30.1 | 29.1 | 29.6 | 30.8 |
| Average daytime temperature (°C) | 28.8 | 31.7 | 30.1 | 31.4 | 30.4 | 27.8 | 28.6 | 28.1 | 28.5 | 27.1 | 27.6 | 29.0 |
| Average temperature (°C) | 24.3 | 26.1 | 25.2 | 26.2 | 26.0 | 24.7 | 25.0 | 24.7 | 24.7 | 23.8 | 24.1 | 25.3 |
| Average night temperature (°C) | 21.5 | 22.5 | 21.9 | 22.6 | 23.1 | 22.5 | 22.5 | 22.5 | 22.2 | 21.9 | 21.9 | 22.6 |
| Absolute minimum temperature (°C) | 20.0 | 21.5 | 20.9 | 21.5 | 22.3 | 21.8 | 21.3 | 21.3 | 21.4 | 21.1 | 21.0 | 21.1 |
| 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 | 12.6 | 12.4 | 12.2 | 11.9 | 11.7 | 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) | 10.6 | 11.1 | 10.9 | 11.3 | 10.2 | 8.5 | 9.1 | 8.3 | 9.4 | 7.2 | 8.5 | 10.3 |
| Precipitation (mm) | 108 | 7 | 175 | 75 | 226 | 317 | 445 | 417 | 333 | 558 | 367 | 75 |
| Sunny days | 7 | 19 | 5 | 3 | 2 | 0 | 1 | 0 | 0 | 0 | 1 | 16 |
| Rainy days | 24 | 9 | 26 | 27 | 29 | 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 Fortuna is at