Average annual temperature is 13.3 °C
Absolute maximum temperature: 35.2 °C
Absolute minimum temperature: -12.2 °C
Number of sunny days: 188 days
Number of rainy days: 172 days
Number of snow days: 5 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) | 17.7 | 20.1 | 20.9 | 26.7 | 31.3 | 33.0 | 35.2 | 34.2 | 31.5 | 29.1 | 24.0 | 16.2 |
| Average daytime temperature (°C) | 6.6 | 10.5 | 11.3 | 18.8 | 24.3 | 28.5 | 29.9 | 28.6 | 26.3 | 19.4 | 12.7 | 8.8 |
| Average temperature (°C) | 2.7 | 4.2 | 5.5 | 11.8 | 18.0 | 22.2 | 24.3 | 23.2 | 20.6 | 14.3 | 7.0 | 4.7 |
| Average night temperature (°C) | -0.4 | -0.3 | 0.9 | 6.0 | 11.8 | 16.3 | 19.1 | 18.5 | 15.7 | 10.1 | 2.6 | 1.6 |
| Absolute minimum temperature (°C) | -12.2 | -11.3 | -7.6 | -2.6 | 3.0 | 10.5 | 15.2 | 12.8 | 10.9 | -3.2 | -8.3 | -7.4 |
| 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 | 13.0 | 11.0 | 10.0 | 9.0 |
| Daylight mean duration (h) | 9.7 | 10.7 | 12.0 | 13.3 | 14.4 | 14.9 | 14.7 | 13.7 | 12.5 | 11.2 | 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) | 3.9 | 7.2 | 6.3 | 9.1 | 11.0 | 11.8 | 12.4 | 10.9 | 10.5 | 7.2 | 7.8 | 4.9 |
| Precipitation (mm) | 104 | 71 | 216 | 126 | 30 | 53 | 116 | 112 | 24 | 88 | 30 | 60 |
| Sunny days | 11 | 16 | 15 | 16 | 17 | 18 | 11 | 14 | 17 | 15 | 24 | 14 |
| Rainy days | 16 | 12 | 15 | 14 | 14 | 12 | 20 | 17 | 13 | 16 | 6 | 17 |
| Snow days | 4 | 0 | 1 | 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