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Perth, Western Australia Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Perth, Western Australia?
Perth, Western Australia gets 723 mm of precipitation a year over about 108 rainy days. February is the warmest month (average high 32°C) and July the coldest (average low 8°C).
Mediterranean climate
Perth, Western Australia has hot summers and mild winters. Daytime highs range from about 18°C in July to 32°C in February. July is usually the wettest month. The most comfortable time to visit is typically April to June and August to November, when daytime highs sit near 23°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Jun–Aug | 8° | 19° |
| Spring | Sep–Nov | 12° | 23° |
| Summer | Dec–Feb | 18° | 31° |
| Autumn | Mar–May | 14° | 26° |
How much rain does Perth get?
Perth gets 723 mm of precipitation in an average year, spread over about 108 days with measurable rain. That is more rainy days than 75% of Australia.
July is the wettest month, with 142 mm. December is the driest, with 10 mm. July has the most rainy days, about 17.
The longest dry spell in the last five years lasted 51 days, to March 2, 2023.
From October 2025 to September 2026 Perth got 573 mm of rain, against a normal of 723 mm for those months. June 2026 had the most, with 121 mm.
Perth weather by month
Perth weather in January
In January, Perth averages a high of 31°C and a low of 18°C. It gets 19 mm of precipitation over about 3 rainy days. Estimated sunshine is 84% of daylight hours, derived from ERA5 cloud cover. The January record high is 44°C (2015) and the record low is 9°C (2001).
Perth weather in February
In February, Perth averages a high of 32°C and a low of 18°C. It gets 13 mm of precipitation over about 2 rainy days. Estimated sunshine is 73% of daylight hours, derived from ERA5 cloud cover. The February record high is 44°C (1997) and the record low is 10°C (2016).
Perth weather in March
In March, Perth averages a high of 29°C and a low of 17°C. It gets 20 mm of precipitation over about 5 rainy days. Estimated sunshine is 64% of daylight hours, derived from ERA5 cloud cover. The March record high is 42°C (2007) and the record low is 6°C (2007).
Perth weather in April
In April, Perth averages a high of 26°C and a low of 14°C. It gets 35 mm of precipitation over about 7 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The April record high is 39°C (2020) and the record low is 4°C (2000). April is one of the most comfortable months to visit.
Perth weather in May
In May, Perth averages a high of 22°C and a low of 11°C. It gets 88 mm of precipitation over about 11 rainy days. Estimated sunshine is 54% of daylight hours, derived from ERA5 cloud cover. The May record high is 34°C (2002) and the record low is 1°C (2012). May is one of the most comfortable months to visit.
Perth weather in June
In June, Perth averages a high of 19°C and a low of 9°C. It gets 127 mm of precipitation over about 15 rainy days. Estimated sunshine is 51% of daylight hours, derived from ERA5 cloud cover. The June record high is 26°C (2009) and the record low is -1°C (2006). June is one of the most comfortable months to visit.
Perth weather in July
In July, Perth averages a high of 18°C and a low of 8°C. It gets 142 mm of precipitation over about 17 rainy days. Estimated sunshine is 49% of daylight hours, derived from ERA5 cloud cover. The July record high is 26°C (2026) and the record low is 0°C (2010).
Perth weather in August
In August, Perth averages a high of 19°C and a low of 8°C. It gets 124 mm of precipitation over about 16 rainy days. Estimated sunshine is 51% of daylight hours, derived from ERA5 cloud cover. The August record high is 30°C (2019) and the record low is 1°C (2000). August is one of the most comfortable months to visit.
Perth weather in September
In September, Perth averages a high of 21°C and a low of 9°C. It gets 83 mm of precipitation over about 15 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The September record high is 34°C (2014) and the record low is 1°C (2008). September is one of the most comfortable months to visit.
Perth weather in October
In October, Perth averages a high of 23°C and a low of 12°C. It gets 37 mm of precipitation over about 9 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The October record high is 37°C (2013) and the record low is 2°C (1994). October is one of the most comfortable months to visit.
Perth weather in November
In November, Perth averages a high of 27°C and a low of 14°C. It gets 24 mm of precipitation over about 6 rainy days. Estimated sunshine is 64% of daylight hours, derived from ERA5 cloud cover. The November record high is 41°C (2003) and the record low is 5°C (2004). November is one of the most comfortable months to visit.
Perth weather in December
In December, Perth averages a high of 29°C and a low of 17°C. It gets 10 mm of precipitation over about 4 rainy days. Estimated sunshine is 77% of daylight hours, derived from ERA5 cloud cover. The December record high is 44°C (2007) and the record low is 7°C (2020).
Sunshine, humidity and wind in Perth
January is the sunniest month in Perth, with estimated sunshine of 84% of daylight hours from ERA5 cloud cover. July is the cloudiest, at 49%. The annual cloud-cover estimate is 62% of daylight hours; it is not a measurement of sunshine duration. Perth is sunnier than 77% of Australia.
Humidity peaks in June at 75% and is lowest in January at 50%.
Perth has about 51 days a year above 32°C. Perth is hotter than 60% of Australia.
Perth weather records
These records cover PERTH METRO during 1993–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Perth station is 44°C, on February 26, 1997. The coldest is -1°C, on June 17, 2006.
The wettest day in the available station history brought 114 mm of precipitation, on February 10, 2017.
34 all-time records have been set at the station since 1993.
The annual mean temperature has changed by +0.4°C per decade since 1994.
The best time to visit Perth
The most comfortable time to visit is typically April to June and August to November, when daytime highs sit near 23°C.
Winter (June–August) is mild, with average highs around 19°C and lows near 8°C.
Spring (September–November) is warm, with average highs around 24°C and lows near 12°C.
Summer (December–February) is hot, with average highs around 31°C and lows near 18°C.
Autumn (March–May) is warm, with average highs around 26°C and lows near 14°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 18° | 31° | 19 mm | 3 | 50% | 84% | 44° | 9° |
| February | 18° | 32° | 13 mm | 2 | 52% | 73% | 44° | 10° |
| March | 17° | 29° | 20 mm | 5 | 58% | 64% | 42° | 6° |
| April | 14° | 26° | 35 mm | 7 | 61% | 60% | 39° | 4° |
| May | 11° | 22° | 88 mm | 11 | 67% | 54% | 34° | 1° |
| June | 9° | 19° | 127 mm | 15 | 75% | 51% | 26° | -1° |
| July | 8° | 18° | 142 mm | 17 | 74% | 49% | 26° | 0° |
| August | 8° | 19° | 124 mm | 16 | 74% | 51% | 30° | 1° |
| September | 9° | 21° | 83 mm | 15 | 70% | 60% | 34° | 1° |
| October | 12° | 23° | 37 mm | 9 | 64% | 60% | 37° | 2° |
| November | 14° | 27° | 24 mm | 6 | 60% | 64% | 41° | 5° |
| December | 17° | 29° | 10 mm | 4 | 51% | 77% | 44° | 7° |
Station: PERTH METRO, 4 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1993–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Perth climate questions
How much rain does Perth get?
Perth gets 723 mm of precipitation in an average year, over about 108 rainy days.
What is the wettest month in Perth?
July is the wettest month in Perth, with 142 mm. December is the driest, with 10 mm.
How many rainy days does Perth have a year?
Perth has about 108 days with measurable rain in an average year. July has the most, about 17.
What is the hottest month in Perth?
February is the warmest month in Perth, with an average high of 32°C.
What is the coldest month in Perth?
July is the coldest month in Perth, with an average low of 8°C.
What is the record high temperature in Perth?
Within the available 1993–2026 station history, the record high at the Perth station is 44°C, set on February 26, 1997. The record low is -1°C, on June 17, 2006.
What is the sunniest month in Perth?
January is the sunniest month in Perth, with estimated sunshine of 84% of daylight hours from ERA5 cloud cover. July is the cloudiest.
What is the best time to visit Perth?
The most comfortable time to visit is typically April to June and August to November, when daytime highs sit near 23°C.