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When is the best time to visit Perth?
In general the best time to visit Perth is probably January, February, March, November, December, when the weather is usually great. The hottest months are January, February, March, while the coldest months are June, July, August.
Depending on the activities you want to experience, you may choose different months to visit:
- The best time for a sunbathing holiday is January, February, March. Average maximum temperatures are up to +31°C in February and it has 19 sunny days on average.
- In general, it’s pleasant to walk and do outdoor activities during January - December.
- If you want to avoid wet weather, then your choice is June, July, August with the lowest chance of rain.
Average weather in Perth in different months
This is the average weather in Perth for each month based on historic data:
In January, February, March, November, December the weather is great. There are an average of 21 sunny days in January and the temperature ranges from +19°C to +30°C.
April, May, June, August, September, October usually has good weather. Average maximum temperature reaches +25°C during April.
In July the weather is average. Expect around 17 rainy days, and the precipitation amounts to approximately 121 mm in July.
Climate in Perth
Here is the detailed breakdown of the climate in Perth for each month:
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Maximum Temperature | |||||||||||
| +43°C | +43°C | +41°C | +38°C | +32°C | +25°C | +25°C | +29°C | +34°C | +36°C | +40°C | +42°C |
| Average Maximum Temperature | |||||||||||
| +30°C | +31°C | +29°C | +25°C | +21°C | +18°C | +17°C | +18°C | +19°C | +22°C | +25°C | +28°C |
| Minimum Temperature | |||||||||||
| +9°C | +9°C | +6°C | +4°C | +1°C | 0°C | -1°C | +1°C | +2°C | +3°C | +6°C | +6°C |
| Avg. water temperature | |||||||||||
| +24°C | +25°C | +25°C | +25°C | +24°C | +23°C | +21°C | +20°C | +20°C | +20°C | +21°C | +23°C |
| Humidity, % | |||||||||||
| 53 | 54 | 57 | 64 | 70 | 74 | 75 | 74 | 71 | 65 | 60 | 55 |
| Rain, mm | |||||||||||
| 15 | 17 | 18 | 31 | 76 | 110 | 121 | 103 | 63 | 32 | 21 | 10 |
| Snow, mm | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Average wind speed, m/s | |||||||||||
| 5 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 |
| Sunny Days | |||||||||||
| 21 | 19 | 18 | 14 | 11 | 9 | 7 | 9 | 9 | 12 | 14 | 20 |
| Cloud Days | |||||||||||
| 6 | 5 | 7 | 8 | 8 | 5 | 6 | 6 | 7 | 9 | 8 | 6 |
| Rainy Days | |||||||||||
| 3 | 3 | 5 | 8 | 11 | 15 | 17 | 16 | 14 | 9 | 7 | 4 |
| Snowy Days | |||||||||||
| 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Average Temperature
Here are the average maximum and minimum temperatures in Perth during the whole year:
The hottest month in Perth is February with average maximum temperature going up to +31°C. The coldest month is July with the lowest temperatures of +9°C.
Water temperature
Here are the water temperatures in Perth during the whole year:
Perth achieves its warmest water temperature in March, where the average sea temperature goes up to +23°C. Coldest water temperature is in September with +19°C in average.
When can you swim in Perth?
You can swim in Perth from January to June:
- In January - June the water is comfortable (21°C - 25°C);
Humidity
The temperature feels different depending on humidity. Here is how humidity in Perth looks throughout the year, in %:
The most humid month in Perth is July with average humidity going up to 75%. The least humid month is January with an average humidity of 53%.
Rain
Amount of rainfall in mm. in Perth during the whole year based on historical data:
The sunniest and driest month is December with approximately 20 sunny days and a total precipitation of around 10 mm. The rainiest and wettest month is July with approximately 17 rainy days and 121 mm of total precipitation.
FAQ
Frequently asked questions about the weather in Perth:
What is the hottest month in Perth?
The hottest month in Perth is February with average maximum temperature of +31°C.
What is the coldest month in Perth?
The coldest month in Perth is July with minimum temperatures of +9°C.
Is Perth worth visiting in winter?
Winter in Perth usually has great weather. The best month is probably February with +31°C and 19 sunny days.
When does it rain the least in Perth?
if you're looking to visit Perth when it rains the least, you should plan your trip for July, June, August. During this time, rainfall is rare with the driest month being December with only 10 mm of rain.
Other cities in Australia
Check out the weather for other cities in Australia.
Monthly weather in Perth
Source of the data
For this page, we’ve looked at the typical weather in Perth, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.