Average annual temperature is 18.0 °C
Absolute maximum temperature: 31.0 °C
Absolute minimum temperature: 7.4 °C
Number of sunny days: 293 days
Number of rainy days: 72 days
Look at detailed online map of Mejillones
* Weather data for Mejillones Chile is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 28.5 | 29.5 | 31.0 | 28.0 | 24.4 | 21.2 | 19.8 | 19.7 | 21.9 | 20.7 | 21.3 | 23.0 |
| Average daytime temperature (°C) | 26.7 | 27.8 | 27.6 | 24.6 | 21.3 | 19.5 | 18.6 | 18.7 | 19.2 | 19.6 | 20.0 | 21.8 |
| Average temperature (°C) | 21.5 | 23.2 | 22.9 | 19.4 | 16.3 | 15.3 | 15.4 | 15.5 | 15.9 | 16.1 | 16.7 | 18.6 |
| Average night temperature (°C) | 16.1 | 18.7 | 18.1 | 14.8 | 12.4 | 12.0 | 12.7 | 12.5 | 12.8 | 12.8 | 13.3 | 15.2 |
| Absolute minimum temperature (°C) | 14.4 | 15.4 | 15.1 | 12.0 | 9.6 | 7.4 | 10.3 | 10.7 | 10.7 | 11.1 | 11.8 | 13.0 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.4 | 12.9 | 12.2 | 11.6 | 11.0 | 10.7 | 10.9 | 11.3 | 12.0 | 12.6 | 13.2 | 13.5 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 11.0 | 11.0 | 12.0 | 12.0 | 13.0 |
| Sunshine mean duration (h) | 12.4 | 11.9 | 11.4 | 10.5 | 9.2 | 8.6 | 7.8 | 8.9 | 9.8 | 11.3 | 12.1 | 12.6 |
| Precipitation (mm) | 0 | 0 | 0 | 0 | 1 | 4 | 10 | 7 | 5 | 0 | 0 | 0 |
| Sunny days | 30 | 28 | 31 | 29 | 28 | 21 | 12 | 11 | 16 | 29 | 27 | 31 |
| Rainy days | 1 | 0 | 0 | 1 | 3 | 9 | 19 | 20 | 14 | 2 | 3 | 0 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Mejillones is at