Average annual temperature is 13.6 °C
Absolute maximum temperature: 35.7 °C
Absolute minimum temperature: -1.1 °C
Number of sunny days: 164 days
Number of rainy days: 201 days
Look at detailed online map of Great Western
* Weather data for Great Western 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) | 35.3 | 35.7 | 32.2 | 23.2 | 18.3 | 17.6 | 14.9 | 17.4 | 26.1 | 27.4 | 30.6 | 33.6 |
| Average daytime temperature (°C) | 27.2 | 25.9 | 22.4 | 18.2 | 13.9 | 12.2 | 12.1 | 13.5 | 17.5 | 17.7 | 22.0 | 23.6 |
| Average temperature (°C) | 20.2 | 19.1 | 16.5 | 13.4 | 9.8 | 9.1 | 8.3 | 9.1 | 11.9 | 12.3 | 16.0 | 17.7 |
| Average night temperature (°C) | 13.6 | 13.1 | 11.7 | 9.4 | 6.5 | 6.4 | 5.1 | 5.6 | 6.9 | 7.1 | 10.7 | 12.4 |
| Absolute minimum temperature (°C) | 9.3 | 8.2 | 7.9 | 3.6 | 2.3 | -1.1 | -0.7 | -0.9 | 1.1 | 3.7 | 5.6 | 8.3 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 14.0 | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 |
| Daylight mean duration (h) | 14.4 | 13.5 | 12.3 | 11.1 | 10.1 | 9.6 | 9.9 | 10.7 | 11.9 | 13.0 | 14.1 | 14.7 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 9.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 12.0 | 11.0 | 9.0 | 7.0 | 6.3 | 5.0 | 5.8 | 6.5 | 9.7 | 9.6 | 10.7 | 10.4 |
| Precipitation (mm) | 11 | 20 | 42 | 96 | 40 | 131 | 33 | 41 | 16 | 46 | 49 | 86 |
| Sunny days | 22 | 18 | 14 | 12 | 12 | 4 | 9 | 9 | 20 | 13 | 21 | 10 |
| Rainy days | 9 | 10 | 17 | 18 | 19 | 26 | 22 | 22 | 10 | 18 | 9 | 21 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Great Western during the most sunny months:
The largest precipitation sum in Great Western is at