Perth Climate by Month
Perth is on the west coast of Australia which means you can see the sunset in the ocean. The best travel time for Perth in Australia is from January to December, where you have a pleasant and warm temperature and barely any rainfall. Perth has a Mediterranean climate due to its location on the coast and there is constant sea breeze. Winters in Perth are soft. Rain and thunderstorms occur mostly in winter.
Average day and night temperature
Depending on the time of the year, temperatures range from very warm to pleasant in Perth. Average daytime temperatures reach a very warm 32°C in January. In July, the coolest month of the year, temperatures drop to a pleasant 18°C. At night, expect cooler temperatures, averaging 9°C during this month.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Generally, Perth has a moderate amount of precipitation, averaging 565 mm of rainfall annually. Perth can be quite wet during July, receiving approximately 100 mm of precipitation over 15 rainy days. In contrast December, experiences much drier conditions, with 12 mm of rainfall, spread across 4 rainy days.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Perth can be enjoyed more throughout the sunniest month of January under a blue sky, with approximately 11.8 hours of sunshine daily. In contrast, the city experiences much darker days in June, with only 5.9 hours of sunlight per day.Monthly hours of sunshine
Daily hours of sunshine
Average water temperature
The mean water temperature over the year in Perth ranges from 17°C in August to 21°C in March.
Water temperature over the year
Average humidity
The relative humidity is low throughout the year in Perth.
Relative humidity over the year
Average wind speed
The mean wind speed over the year in Perth ranges from 5°C in May to 7°C in January.
The mean monthly wind speed over the year (meters per second)
The best time of year to visit Perth in Australia
During the months of May, September and October you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Yes, the months of January, February and December are very dry.
January has an average maximum temperature of 32°C and is the warmest month of the year.
The coldest month is July with an average maximum temperature of 18°C.
July tops the wettest month list with 100 mm of rainfall.
December is the driest month with 12 mm of precipitation.
January is the sunniest month with an average of 355 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
