Average annual temperature is 20.8 °C
Absolute maximum temperature: 43.9 °C
Absolute minimum temperature: 4.9 °C
Number of sunny days: 272 days
Number of rainy days: 93 days
Look at detailed online map of Illawong
* Weather data for Illawong 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) | 42.3 | 42.2 | 37.0 | 31.2 | 30.7 | 21.1 | 22.8 | 33.7 | 38.4 | 40.3 | 43.9 | 42.1 |
| Average daytime temperature (°C) | 34.2 | 33.7 | 31.2 | 25.2 | 25.2 | 18.0 | 18.9 | 22.4 | 23.6 | 29.3 | 31.3 | 33.0 |
| Average temperature (°C) | 26.8 | 26.6 | 24.5 | 19.4 | 19.1 | 13.4 | 13.7 | 15.8 | 18.2 | 21.7 | 24.5 | 25.9 |
| Average night temperature (°C) | 21.1 | 21.1 | 19.4 | 14.7 | 14.3 | 9.3 | 9.4 | 10.4 | 13.7 | 16.0 | 19.2 | 20.4 |
| Absolute minimum temperature (°C) | 16.4 | 15.6 | 15.8 | 10.7 | 9.5 | 5.3 | 4.9 | 5.6 | 8.9 | 10.9 | 14.3 | 16.1 |
| 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) | 12.9 | 12.1 | 10.9 | 9.9 | 8.8 | 8.8 | 8.5 | 9.4 | 10.5 | 11.7 | 12.3 | 12.8 |
| Precipitation (mm) | 0 | 0 | 28 | 11 | 52 | 58 | 37 | 27 | 26 | 2 | 22 | 1 |
| Sunny days | 31 | 28 | 24 | 22 | 20 | 15 | 14 | 20 | 17 | 29 | 23 | 29 |
| Rainy days | 0 | 0 | 7 | 8 | 11 | 15 | 17 | 11 | 13 | 2 | 7 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Illawong is at