Average annual temperature is 16.8 °C
Absolute maximum temperature: 39.8 °C
Absolute minimum temperature: 2.5 °C
Number of sunny days: 147 days
Number of rainy days: 218 days
Look at detailed online map of Hornsby Shire
* Weather data for Hornsby Shire 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) | 33.7 | 35.1 | 35.9 | 25.5 | 21.6 | 21.8 | 23.1 | 24.5 | 33.1 | 33.1 | 30.6 | 39.8 |
| Average daytime temperature (°C) | 25.7 | 27.1 | 26.5 | 21.0 | 18.1 | 16.7 | 17.8 | 18.7 | 23.1 | 24.7 | 24.0 | 28.0 |
| Average temperature (°C) | 20.5 | 21.5 | 20.9 | 16.2 | 12.4 | 11.4 | 11.9 | 12.6 | 16.1 | 17.5 | 18.8 | 21.8 |
| Average night temperature (°C) | 16.8 | 17.3 | 17.1 | 12.6 | 8.3 | 7.6 | 7.5 | 8.1 | 10.6 | 12.0 | 15.0 | 17.4 |
| Absolute minimum temperature (°C) | 12.8 | 14.3 | 11.7 | 8.5 | 4.7 | 3.5 | 2.5 | 4.5 | 5.8 | 8.5 | 10.2 | 13.8 |
| 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 | 14.0 | 14.0 |
| Daylight mean duration (h) | 14.1 | 13.3 | 12.3 | 11.2 | 10.4 | 10.0 | 10.2 | 10.9 | 11.9 | 12.9 | 13.9 | 14.3 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 10.0 | 10.0 | 9.0 | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 |
| Sunshine mean duration (h) | 10.1 | 10.6 | 9.0 | 8.8 | 8.8 | 7.8 | 8.7 | 9.2 | 10.5 | 10.9 | 9.4 | 10.8 |
| Precipitation (mm) | 152 | 90 | 117 | 56 | 20 | 26 | 19 | 42 | 19 | 47 | 158 | 121 |
| Sunny days | 6 | 7 | 11 | 8 | 20 | 18 | 23 | 10 | 21 | 15 | 3 | 5 |
| Rainy days | 25 | 21 | 20 | 22 | 11 | 12 | 8 | 21 | 9 | 16 | 27 | 26 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Hornsby Shire is at