Average annual temperature is 20.2 °C
Absolute maximum temperature: 42.3 °C
Absolute minimum temperature: 1.7 °C
Number of sunny days: 270 days
Number of rainy days: 95 days
Look at detailed online map of Winchester
* Weather data for Winchester 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) | 41.5 | 41.3 | 38.2 | 30.3 | 28.6 | 19.3 | 21.0 | 33.2 | 37.0 | 36.8 | 42.3 | 40.6 |
| Average daytime temperature (°C) | 35.5 | 35.7 | 32.2 | 24.3 | 23.4 | 16.3 | 17.5 | 21.8 | 24.8 | 30.3 | 33.9 | 35.3 |
| Average temperature (°C) | 27.3 | 27.3 | 24.7 | 17.8 | 17.0 | 11.1 | 11.6 | 14.6 | 17.3 | 21.9 | 25.6 | 26.9 |
| Average night temperature (°C) | 20.2 | 20.2 | 18.3 | 12.4 | 12.0 | 6.7 | 6.6 | 8.5 | 11.4 | 14.8 | 18.5 | 19.4 |
| Absolute minimum temperature (°C) | 14.5 | 15.1 | 14.9 | 7.6 | 7.3 | 2.9 | 1.7 | 3.9 | 6.5 | 7.3 | 13.5 | 15.1 |
| 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 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 14.0 |
| Daylight mean duration (h) | 13.8 | 13.1 | 12.3 | 11.4 | 10.6 | 10.3 | 10.4 | 11.1 | 11.9 | 12.8 | 13.6 | 14.0 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 12.6 | 12.0 | 10.7 | 9.9 | 8.8 | 8.7 | 8.4 | 9.3 | 10.1 | 11.6 | 12.2 | 12.7 |
| Precipitation (mm) | 10 | 0 | 26 | 3 | 38 | 30 | 23 | 20 | 21 | 1 | 4 | 0 |
| Sunny days | 26 | 28 | 22 | 23 | 21 | 13 | 15 | 21 | 19 | 29 | 23 | 30 |
| Rainy days | 5 | 0 | 9 | 7 | 10 | 17 | 16 | 10 | 11 | 2 | 7 | 1 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Winchester is at