Average annual temperature is 26.2 °C
Absolute maximum temperature: 35.4 °C
Absolute minimum temperature: 15.8 °C
Number of sunny days: 78 days
Number of rainy days: 287 days
Look at detailed online map of Istmo
* Weather data for Istmo 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) | 33.1 | 34.6 | 34.5 | 35.4 | 34.6 | 33.1 | 33.5 | 32.4 | 31.8 | 31.3 | 32.8 | 33.4 |
| Average daytime temperature (°C) | 30.5 | 32.0 | 31.7 | 32.5 | 32.8 | 30.9 | 30.5 | 30.2 | 29.9 | 29.3 | 30.3 | 30.7 |
| Average temperature (°C) | 24.8 | 26.0 | 25.9 | 27.0 | 28.0 | 26.8 | 26.4 | 26.4 | 26.1 | 25.9 | 25.8 | 25.3 |
| Average night temperature (°C) | 19.7 | 20.8 | 20.9 | 22.6 | 23.6 | 23.3 | 22.7 | 22.9 | 22.3 | 22.8 | 22.4 | 20.1 |
| Absolute minimum temperature (°C) | 17.9 | 18.0 | 19.0 | 20.7 | 21.7 | 21.9 | 21.4 | 21.0 | 20.3 | 19.2 | 19.6 | 15.8 |
| 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) | 11.3 | 11.6 | 12.0 | 12.5 | 12.9 | 13.1 | 13.0 | 12.7 | 12.2 | 11.8 | 11.4 | 11.2 |
| Daylight minimum duration (h) | 11.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 12.0 | 12.0 | 12.0 | 11.0 | 11.0 | 11.0 |
| Sunshine mean duration (h) | 10.5 | 10.8 | 10.9 | 11.3 | 11.4 | 10.8 | 10.5 | 10.5 | 10.5 | 10.0 | 10.1 | 10.2 |
| Precipitation (mm) | 9 | 2 | 38 | 42 | 44 | 166 | 211 | 262 | 188 | 205 | 84 | 14 |
| Sunny days | 13 | 19 | 10 | 8 | 2 | 2 | 0 | 0 | 1 | 3 | 3 | 17 |
| Rainy days | 18 | 9 | 21 | 22 | 29 | 28 | 31 | 31 | 29 | 28 | 27 | 14 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Istmo is at