Average annual temperature is 12.9 °C
Absolute maximum temperature: 40.9 °C
Absolute minimum temperature: -10.7 °C
Number of sunny days: 254 days
Number of rainy days: 85 days
Number of snow days: 26 days
Look at detailed online map of Perth
* Weather data for Perth United States is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 10.6 | 13.2 | 14.3 | 29.8 | 33.0 | 33.9 | 40.9 | 35.6 | 32.2 | 27.1 | 20.0 | 14.3 |
| Average daytime temperature (°C) | 4.9 | 8.2 | 9.2 | 19.6 | 24.5 | 27.5 | 36.9 | 32.5 | 27.1 | 19.8 | 11.3 | 9.0 |
| Average temperature (°C) | 0.4 | 2.0 | 3.2 | 11.6 | 17.5 | 20.6 | 29.5 | 25.8 | 19.8 | 13.2 | 6.2 | 3.6 |
| Average night temperature (°C) | -2.9 | -2.4 | -1.5 | 4.5 | 10.6 | 13.4 | 20.4 | 18.1 | 12.5 | 7.1 | 1.5 | -0.5 |
| Absolute minimum temperature (°C) | -10.7 | -7.6 | -5.6 | -4.4 | 0.7 | 6.5 | 16.1 | 13.5 | 5.3 | -4.0 | -6.1 | -5.5 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 15.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 15.0 | 14.7 | 13.7 | 12.5 | 11.1 | 10.0 | 9.4 |
| Daylight minimum duration (h) | 9.0 | 10.0 | 11.0 | 12.0 | 13.0 | 14.0 | 14.0 | 13.0 | 11.0 | 10.0 | 9.0 | 9.0 |
| Sunshine mean duration (h) | 6.5 | 8.4 | 9.1 | 11.5 | 11.8 | 12.9 | 13.4 | 11.9 | 11.0 | 9.0 | 8.1 | 6.9 |
| Precipitation (mm) | 59 | 8 | 60 | 5 | 33 | 20 | 0 | 26 | 42 | 11 | 12 | 4 |
| Sunny days | 15 | 18 | 9 | 26 | 14 | 19 | 30 | 24 | 26 | 27 | 24 | 22 |
| Rainy days | 11 | 3 | 13 | 1 | 17 | 11 | 1 | 7 | 4 | 4 | 6 | 7 |
| Snow days | 5 | 7 | 9 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 |
The best time to visit Perth during the most sunny months:
The largest precipitation sum in Perth is at