Average annual temperature is 18.9 °C
Absolute maximum temperature: 40.8 °C
Absolute minimum temperature: 1.7 °C
Number of sunny days: 250 days
Number of rainy days: 115 days
Look at detailed online map of Dumbarton
* Weather data for Dumbarton 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) | 39.7 | 39.7 | 36.2 | 29.8 | 26.8 | 19.3 | 19.8 | 27.5 | 32.9 | 35.8 | 39.7 | 40.8 |
| Average daytime temperature (°C) | 34.6 | 34.1 | 31.1 | 22.8 | 21.2 | 15.5 | 16.7 | 18.9 | 22.1 | 27.6 | 32.1 | 33.1 |
| Average temperature (°C) | 26.4 | 25.8 | 23.4 | 16.5 | 14.9 | 10.8 | 11.6 | 12.5 | 16.0 | 19.8 | 24.4 | 25.1 |
| Average night temperature (°C) | 19.0 | 18.6 | 17.0 | 11.2 | 9.6 | 6.5 | 7.4 | 7.2 | 11.0 | 13.0 | 17.5 | 17.9 |
| Absolute minimum temperature (°C) | 14.2 | 13.6 | 14.1 | 6.4 | 3.1 | 2.1 | 1.7 | 1.7 | 4.5 | 7.7 | 13.4 | 13.0 |
| 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) | 13.9 | 13.2 | 12.3 | 11.3 | 10.5 | 10.1 | 10.3 | 11.0 | 11.9 | 12.9 | 13.7 | 14.2 |
| 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 | 14.0 |
| Sunshine mean duration (h) | 12.9 | 12.2 | 10.3 | 9.2 | 8.3 | 7.5 | 7.7 | 8.2 | 9.7 | 11.7 | 12.2 | 12.9 |
| Precipitation (mm) | 1 | 0 | 49 | 28 | 60 | 61 | 43 | 16 | 39 | 2 | 16 | 1 |
| Sunny days | 26 | 28 | 23 | 17 | 18 | 12 | 14 | 21 | 14 | 27 | 22 | 28 |
| Rainy days | 5 | 0 | 8 | 13 | 13 | 18 | 17 | 10 | 16 | 4 | 8 | 3 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Dumbarton during the most sunny months:
The largest precipitation sum in Dumbarton is at