Average annual temperature is 22.8 °C
Absolute maximum temperature: 35.8 °C
Absolute minimum temperature: 11.6 °C
Number of sunny days: 132 days
Number of rainy days: 233 days
Look at detailed online map of Saint Helens
* Weather data for Saint Helens Australia is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 32.0 | 35.8 | 32.4 | 33.4 | 27.8 | 30.4 | 28.0 | 28.9 | 32.1 | 32.1 | 35.7 | 33.9 |
| Average daytime temperature (°C) | 29.2 | 30.2 | 30.1 | 28.7 | 25.4 | 25.6 | 23.9 | 25.2 | 27.0 | 28.4 | 29.6 | 30.7 |
| Average temperature (°C) | 25.5 | 26.0 | 25.7 | 23.9 | 19.9 | 20.2 | 19.0 | 19.1 | 21.1 | 22.6 | 24.7 | 26.3 |
| Average night temperature (°C) | 22.6 | 22.9 | 22.6 | 20.5 | 15.9 | 16.6 | 15.7 | 14.8 | 16.8 | 18.0 | 20.7 | 23.0 |
| Absolute minimum temperature (°C) | 21.0 | 18.5 | 20.1 | 17.7 | 11.6 | 12.5 | 11.7 | 12.0 | 13.7 | 14.8 | 16.6 | 20.5 |
| 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) | 13.2 | 12.8 | 12.2 | 11.6 | 11.1 | 10.9 | 11.0 | 11.4 | 12.0 | 12.6 | 13.1 | 13.4 |
| 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) | 9.3 | 8.7 | 10.7 | 9.5 | 9.9 | 9.8 | 8.2 | 10.4 | 11.0 | 11.6 | 11.4 | 9.8 |
| Precipitation (mm) | 911 | 125 | 99 | 79 | 6 | 13 | 157 | 9 | 13 | 31 | 67 | 227 |
| Sunny days | 6 | 7 | 5 | 7 | 21 | 17 | 12 | 17 | 14 | 16 | 5 | 5 |
| Rainy days | 25 | 21 | 26 | 23 | 10 | 13 | 19 | 14 | 16 | 15 | 25 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Saint Helens is at