Average annual temperature is 25.6 °C
Absolute maximum temperature: 34.6 °C
Absolute minimum temperature: 20.2 °C
Number of sunny days: 47 days
Number of rainy days: 318 days
Look at detailed online map of Arcos
* Weather data for Arcos 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) | 32.4 | 34.3 | 34.6 | 34.3 | 34.6 | 31.0 | 32.1 | 31.9 | 31.0 | 30.2 | 30.8 | 31.4 |
| Average daytime temperature (°C) | 29.8 | 33.2 | 31.2 | 32.4 | 31.5 | 28.8 | 29.3 | 28.8 | 29.2 | 27.9 | 28.5 | 29.9 |
| Average temperature (°C) | 24.8 | 26.9 | 25.9 | 26.7 | 26.7 | 25.4 | 25.5 | 25.2 | 25.3 | 24.5 | 24.7 | 25.8 |
| Average night temperature (°C) | 21.7 | 22.9 | 22.4 | 22.9 | 23.5 | 23.1 | 23.0 | 23.0 | 22.7 | 22.6 | 22.3 | 22.9 |
| Absolute minimum temperature (°C) | 20.2 | 21.5 | 21.3 | 21.7 | 22.2 | 22.3 | 21.6 | 21.7 | 21.7 | 21.6 | 21.4 | 21.0 |
| 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 | 11.5 |
| 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) | 10.5 | 11.0 | 10.8 | 11.2 | 9.9 | 8.2 | 8.6 | 7.7 | 9.1 | 6.6 | 7.9 | 10.3 |
| Precipitation (mm) | 128 | 5 | 178 | 84 | 186 | 414 | 406 | 413 | 364 | 595 | 381 | 78 |
| Sunny days | 6 | 18 | 4 | 4 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 12 |
| Rainy days | 25 | 10 | 27 | 26 | 30 | 30 | 30 | 31 | 30 | 31 | 29 | 19 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Arcos is at