Average annual temperature is 20.4 °C
Absolute maximum temperature: 45.6 °C
Absolute minimum temperature: 3.5 °C
Number of sunny days: 273 days
Number of rainy days: 92 days
Look at detailed online map of Irwin
* Weather data for Irwin 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) | 44.3 | 43.1 | 38.6 | 31.4 | 31.5 | 21.4 | 22.5 | 33.6 | 39.1 | 41.4 | 45.6 | 42.0 |
| Average daytime temperature (°C) | 35.5 | 34.5 | 31.9 | 26.0 | 25.7 | 18.2 | 18.8 | 22.5 | 23.9 | 30.2 | 32.3 | 33.8 |
| Average temperature (°C) | 26.9 | 26.4 | 24.1 | 19.0 | 18.7 | 12.6 | 13.0 | 15.2 | 17.4 | 21.5 | 24.3 | 25.6 |
| Average night temperature (°C) | 20.3 | 19.8 | 18.2 | 13.5 | 13.7 | 7.9 | 8.4 | 9.7 | 12.3 | 14.8 | 18.2 | 19.3 |
| Absolute minimum temperature (°C) | 13.8 | 13.8 | 13.0 | 8.8 | 8.2 | 3.5 | 4.0 | 4.0 | 8.1 | 8.3 | 12.7 | 14.4 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 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 | 10.7 | 10.3 | 10.5 | 11.1 | 11.9 | 12.8 | 13.6 | 14.0 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 12.9 | 12.0 | 11.0 | 10.1 | 8.9 | 8.9 | 8.8 | 9.6 | 10.6 | 11.6 | 12.1 | 12.8 |
| Precipitation (mm) | 1 | 0 | 75 | 10 | 48 | 59 | 30 | 36 | 17 | 1 | 13 | 0 |
| Sunny days | 30 | 26 | 22 | 23 | 19 | 14 | 16 | 22 | 19 | 29 | 24 | 29 |
| Rainy days | 1 | 2 | 9 | 7 | 12 | 16 | 15 | 9 | 11 | 2 | 6 | 2 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Irwin is at