Perth, Western Australia, Australia climate
Average temperatures, precipitation and all-time records for Perth, Western Australia, Australia, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is January, averaging a high of 31°C, and its coldest is July, with an average low of 8°C.
Perth is the capital city of Western Australia. It is the fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth as of 2023. via Wikipedia
How today compares
Latest recorded day: 2026-10-10. Each reading placed on Perth, Western Australia, Australia's own ±7-day seasonal distribution.
Percentiles marked * are pending verification.
Perth average temperatures by month
Typical daily high and low, and average precipitation, for each month in Perth, Western Australia, Australia, based on 1980–2026 records. The wettest month is May (3 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 31°C | 18°C | 0 mm |
| February | 31°C | 18°C | 0 mm |
| March | 29°C | 17°C | 0 mm |
| April | 24°C | 14°C | 0 mm |
| May | 21°C | 11°C | 3 mm |
| June | 17°C | 9°C | 3 mm |
| July | 16°C | 8°C | 3 mm |
| August | 17°C | 9°C | 3 mm |
| September | 19°C | 10°C | 3 mm |
| October | 21°C | 11°C | 0 mm |
| November | 25°C | 14°C | 0 mm |
| December | 28°C | 16°C | 0 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
Thinking of visiting Perth?
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Record extremes
- Hottest day on record: 45°C on 1991-02-23
- Coldest day on record: 1°C on 2006-06-16
Percentiles compare each day to Perth, Western Australia, Australia's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →