Perth Climate by Month
Perth, Western Australia, Australia
Hot summers and mild winters, with most rain from May to September.
Perth has hot summers and mild winters, with most rain from May to September. Afternoon highs range from 65°F (18°C) in July to 88°F (31°C) in February, and July nights average 50°F (10°C). It gets 28 in (710 mm) of rain a year, 76% of it from May to September.
- Warmest month
- 88°F(31°C)
- Average high, February
- Coldest nights
- 50°F(10°C)
- Average low, July
- Rain per year
- 28 in(710 mm)
- Wettest: July
- Humidity
- 62%
- Sunniest: December
Best and worst months in Perth
Best for weatherThe most comfortable weather comes in April, October and November, with highs around 77°F (25°C) and about 1.3 in (34 mm) of rain a month.
Least pleasantJuly is the least pleasant month: it's the wettest, with 5.6 in (142 mm) of rain.
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in October.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Perth weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 87°F(31°C) | 65°F(18°C) | 0.9 in(23 mm) | 55% | 7.9 |
| FebFebruary | 88°F(31°C) | 66°F(19°C) | 0.6 in(15 mm) | 54% | 7.3 |
| MarMarch | 84°F(29°C) | 64°F(18°C) | 0.9 in(22 mm) | 56% | 6.0 |
| AprAprilBest | 78°F(26°C) | 60°F(15°C) | 1.3 in(32 mm) | 62% | 4.5 |
| MayMay | 72°F(22°C) | 54°F(12°C) | 3.1 in(79 mm) | 65% | 3.5 |
| JunJune | 67°F(19°C) | 51°F(11°C) | 5.1 in(129 mm) | 70% | 2.9 |
| JulJuly | 65°F(18°C) | 50°F(10°C) | 5.6 in(142 mm) | 68% | 3.1 |
| AugAugust | 66°F(19°C) | 50°F(10°C) | 4.4 in(112 mm) | 72% | 4.0 |
| SepSeptember | 69°F(20°C) | 51°F(11°C) | 3.0 in(77 mm) | 68% | 5.2 |
| OctOctoberBest | 74°F(23°C) | 54°F(12°C) | 1.8 in(46 mm) | 64% | 6.6 |
| NovNovemberBest | 79°F(26°C) | 58°F(14°C) | 0.9 in(24 mm) | 59% | 7.5 |
| DecDecember | 84°F(29°C) | 62°F(16°C) | 0.4 in(9 mm) | 51% | 8.2 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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