Average annual temperature is 21.5 °C
Absolute maximum temperature: 39.4 °C
Absolute minimum temperature: -1.4 °C
Number of sunny days: 295 days
Number of rainy days: 70 days
Look at detailed online map of Perth
* Weather data for Perth South Africa is based on climate observations for 2026 year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Absolute maximum temperature (°C) | 37.2 | 36.7 | 35.5 | 31.8 | 30.6 | 27.2 | 28.3 | 31.0 | 35.3 | 38.9 | 39.2 | 39.4 |
| Average daytime temperature (°C) | 34.1 | 31.7 | 31.6 | 28.6 | 24.6 | 20.9 | 21.3 | 24.8 | 27.5 | 32.3 | 34.7 | 34.4 |
| Average temperature (°C) | 28.1 | 25.6 | 24.8 | 20.8 | 17.1 | 12.7 | 13.3 | 16.3 | 19.0 | 24.6 | 27.6 | 27.6 |
| Average night temperature (°C) | 20.8 | 19.4 | 17.7 | 13.3 | 9.7 | 4.9 | 5.9 | 8.0 | 9.7 | 15.7 | 19.4 | 20.4 |
| Absolute minimum temperature (°C) | 14.4 | 13.7 | 13.3 | 6.2 | 2.5 | 0.8 | -1.4 | 2.7 | 2.9 | 9.4 | 10.4 | 14.9 |
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight maximum duration (h) | 13.0 | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 | 13.0 |
| Daylight mean duration (h) | 13.6 | 13.0 | 12.2 | 11.5 | 10.8 | 10.5 | 10.7 | 11.2 | 11.9 | 12.7 | 13.4 | 13.8 |
| Daylight minimum duration (h) | 13.0 | 12.0 | 11.0 | 11.0 | 10.0 | 10.0 | 10.0 | 10.0 | 11.0 | 12.0 | 13.0 | 13.0 |
| Sunshine mean duration (h) | 12.6 | 11.2 | 10.9 | 10.5 | 9.6 | 9.6 | 9.7 | 10.3 | 10.8 | 11.4 | 11.8 | 12.2 |
| Precipitation (mm) | 5 | 40 | 12 | 13 | 18 | 1 | 0 | 0 | 1 | 1 | 8 | 48 |
| Sunny days | 23 | 12 | 18 | 25 | 27 | 27 | 30 | 31 | 27 | 29 | 24 | 22 |
| Rainy days | 8 | 16 | 13 | 5 | 4 | 3 | 1 | 0 | 3 | 2 | 6 | 9 |
| Snow days | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
The largest precipitation sum in Perth is at