Average annual temperature is 15.8 °C
Absolute maximum temperature: 37.9 °C
Absolute minimum temperature: -7.0 °C
Number of sunny days: 213 days
Number of rainy days: 152 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) | 19.2 | 25.6 | 28.7 | 30.9 | 30.2 | 31.6 | 37.9 | 35.5 | 35.8 | 28.8 | 27.9 | 21.4 |
| Average daytime temperature (°C) | 12.1 | 15.5 | 16.6 | 23.1 | 24.4 | 28.2 | 33.6 | 31.4 | 28.1 | 22.8 | 15.9 | 12.8 |
| Average temperature (°C) | 7.1 | 9.6 | 10.2 | 16.1 | 18.2 | 21.9 | 26.9 | 25.3 | 21.8 | 16.3 | 9.3 | 6.9 |
| Average night temperature (°C) | 3.4 | 4.9 | 4.9 | 9.6 | 12.9 | 16.1 | 21.3 | 20.2 | 16.7 | 11.1 | 4.3 | 2.6 |
| Absolute minimum temperature (°C) | -4.2 | -7.0 | -4.9 | 1.3 | 6.4 | 11.5 | 17.9 | 15.8 | 11.5 | 4.6 | -5.0 | -4.5 |
| 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 | 14.0 | 14.0 | 14.0 | 12.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.9 | 10.8 | 12.0 | 13.1 | 14.1 | 14.7 | 14.4 | 13.5 | 12.4 | 11.2 | 10.2 | 9.7 |
| 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) | 5.8 | 6.9 | 8.3 | 9.6 | 10.2 | 10.6 | 12.2 | 10.9 | 9.5 | 9.0 | 8.4 | 6.5 |
| Precipitation (mm) | 105 | 70 | 40 | 104 | 81 | 82 | 60 | 60 | 68 | 24 | 39 | 149 |
| Sunny days | 15 | 17 | 16 | 17 | 15 | 14 | 14 | 16 | 21 | 22 | 26 | 20 |
| Rainy days | 16 | 11 | 15 | 13 | 16 | 16 | 17 | 15 | 9 | 9 | 4 | 11 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The best time to visit Perth during the most sunny months:
The largest precipitation sum in Perth is at