Average annual temperature is 15.8 °C
Absolute maximum temperature: 38.3 °C
Absolute minimum temperature: 0.2 °C
Number of sunny days: 156 days
Number of rainy days: 209 days
Look at detailed online map of Illaroo
* Weather data for Illaroo 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) | 34.7 | 36.1 | 34.7 | 25.7 | 21.5 | 21.2 | 21.1 | 23.0 | 32.7 | 33.4 | 35.3 | 38.3 |
| Average daytime temperature (°C) | 25.7 | 27.0 | 25.5 | 20.8 | 17.6 | 16.3 | 17.4 | 18.1 | 23.1 | 24.0 | 24.2 | 26.8 |
| Average temperature (°C) | 19.7 | 20.5 | 19.6 | 15.0 | 11.8 | 11.1 | 11.0 | 11.5 | 15.0 | 16.3 | 18.2 | 20.3 |
| Average night temperature (°C) | 15.2 | 15.9 | 15.1 | 10.8 | 8.1 | 7.6 | 6.4 | 6.7 | 8.8 | 10.5 | 13.6 | 15.7 |
| Absolute minimum temperature (°C) | 10.8 | 12.6 | 10.4 | 8.2 | 3.4 | 1.3 | 0.2 | 3.3 | 3.3 | 5.2 | 8.8 | 11.7 |
| 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) | 14.2 | 13.4 | 12.3 | 11.2 | 10.3 | 9.9 | 10.1 | 10.8 | 11.9 | 13.0 | 13.9 | 14.4 |
| 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) | 9.2 | 10.0 | 8.9 | 8.4 | 8.7 | 7.7 | 8.7 | 8.5 | 10.5 | 10.8 | 9.1 | 10.1 |
| Precipitation (mm) | 83 | 74 | 74 | 92 | 16 | 25 | 11 | 48 | 21 | 58 | 155 | 149 |
| Sunny days | 6 | 9 | 8 | 10 | 19 | 21 | 24 | 11 | 23 | 14 | 7 | 4 |
| Rainy days | 25 | 19 | 23 | 20 | 12 | 9 | 7 | 20 | 7 | 17 | 23 | 27 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Illaroo is at