ClimateForecastDecemberJanuary >>

Thornlie Climate by Month

The temperature in Thornlie can vary greatly throughout the year. The temperatures shift from very warm to pleasant. It receives a reasonable amount of rainfall. Now, let’s break down all the climate details for a clearer picture.

Average day and night temperature

Depending on the time of the year, temperatures range from very warm to pleasant in Thornlie. 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, Thornlie has a moderate amount of precipitation, averaging 586 mm of rainfall annually. Thornlie can be quite wet during July, receiving approximately 103 mm of precipitation over 15 rainy days.

In contrast December, experiences much drier conditions, with 13 mm of rainfall, spread across 4 rainy days.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Thornlie 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

Data from: Perth, Australia (13 KM, 8 Miles).

Daily hours of sunshine

Data from: Perth, Australia (13 KM, 8 Miles).

Average water temperature

The mean water temperature over the year in Thornlie ranges from 17°C in August to 21°C in March.

Water temperature over the year

Data from: Perth, Australia (13 KM, 8 Miles).

The best time of year to visit Thornlie in Australia

During the months of April, May 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:
  • Does Thornlie have a dry season?
    Yes, the months of January, February, March and December are very dry.
  • Which is the warmest month in Thornlie?
    January has an average maximum temperature of 32°C and is the warmest month of the year.
  • Which is the coldest month in Thornlie?
    The coldest month is July with an average maximum temperature of 18°C.
  • Which is the wettest month in Thornlie?
    July tops the wettest month list with 103 mm of rainfall.
  • Which is the driest month in Thornlie?
    December is the driest month with 13 mm of precipitation.
  • Which is the sunniest month in Thornlie?
    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.

    Forecast for Thornlie

    Sat   Dec 14
    29°C | 18°C
    W 14 km/h
    almost clear and no rain

    almost clear and no rain

    Sun   Dec 15
    24°C | 17°C
    SW 22 km/h
    partly cloudy and no rain

    partly cloudy and no rain

    Mon   Dec 16
    25°C | 15°C
    SW 18 km/h
    almost clear and no rain

    almost clear and no rain