Average annual temperature is 25.1 °C
Absolute maximum temperature: 37.7 °C
Absolute minimum temperature: 13.2 °C
Number of sunny days: 103 days
Number of rainy days: 262 days
Look at detailed online map of San Isidro Arenal
* Weather data for San Isidro Arenal Mexico is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 30.9 | 32.3 | 35.1 | 37.7 | 36.1 | 37.7 | 32.5 | 33.9 | 31.9 | 32.7 | 30.5 | 30.3 |
| Average daytime temperature (°C) | 26.6 | 27.0 | 30.9 | 32.2 | 32.4 | 34.0 | 30.7 | 30.8 | 31.0 | 29.1 | 26.2 | 24.6 |
| Average temperature (°C) | 22.2 | 21.9 | 25.2 | 26.7 | 27.4 | 28.9 | 26.1 | 26.4 | 26.5 | 25.4 | 22.9 | 21.5 |
| Average night temperature (°C) | 18.4 | 18.0 | 20.7 | 22.3 | 23.0 | 24.6 | 22.7 | 22.9 | 22.6 | 22.1 | 20.3 | 18.8 |
| Absolute minimum temperature (°C) | 13.4 | 14.6 | 16.9 | 18.3 | 18.1 | 21.9 | 21.6 | 21.0 | 21.5 | 17.7 | 16.7 | 13.2 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Daylight mean duration (h) | 11.2 | 11.6 | 12.0 | 12.5 | 13.0 | 13.2 | 13.1 | 12.7 | 12.2 | 11.7 | 11.3 | 11.1 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 8.9 | 7.8 | 9.9 | 10.5 | 11.2 | 11.2 | 10.2 | 10.6 | 10.8 | 9.1 | 6.3 | 6.5 |
| Precipitation (mm) | 47 | 99 | 68 | 178 | 51 | 166 | 634 | 540 | 294 | 390 | 152 | 204 |
| Sunny days | 13 | 12 | 13 | 13 | 18 | 10 | 0 | 2 | 2 | 3 | 8 | 9 |
| Rainy days | 18 | 16 | 18 | 17 | 13 | 20 | 31 | 29 | 28 | 28 | 22 | 22 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in San Isidro Arenal is at