Thornlie Weather in July

Thornlie in July averages 18°C (64°F) during the day and 9°C (48°F) at night. This is the wettest month of the year, and part of the winter season.

Rainfall in Thornlie in July

As the month with the most rain, you'll want to have an umbrella with you to manage the frequent showers. This month experiences about 15 days of rain according to historical data, averaging 103 mm (4.1 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.

Temperature in Thornlie in July

July in Thornlie sees highs of 18°C (64°F) and lows of 9°C (48°F) overnight. July is typically considered a winter month. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. Nights drop to 9°C (48°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet. Enjoy a month of comfortably warm temperatures, despite being cooler than other months.

Sunshine in Thornlie in July

The days are predominantly sunny, with an estimated total of around 191 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Wind Speed in Thornlie in July

July has wind speeds averaging 5 m/s (10 knots). You can expect gentle to moderate winds that move small trees and make flags wave steadily on typical days. Conditions typically range from light breezes to moderate winds.

Average water temperature in July

The water temperature is 18°C (64°F). It's not warm, but most people find it perfectly fine for a swim once they're in.

If you prefer dry days with pleasant temperatures, July may not be the ideal month to visit Thornlie. Our weather planner can help you explore destinations with more pleasant weather conditions.

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For a detailed overview over the year and the best time to visit Australia, check out our Thornlie's climate page.

Thornlie Temperature in July

Min Temperature 9°C (48°F)  

Max Temperature 18°C (64°F)  

Water Temperature 18°C (64°F) *  

Chance of Rain 51%  

Precipitation 103 mm (4.1 in)  

Rainy days 15 days  

Humidity 57% *  

Windspeed 5 m/s (10 knots) *  

Sunshine 191 hours *  

Percentage Sunshine *  

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

What to Wear in Thornlie in July

For Thornlie in July, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. The water temperature sits at about 18°C (64°F), which is too chilly for most people to enjoy swimming. Leave the swimsuit at home unless you love cold water. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.

What To Do in Thornlie in July

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

6/10

Cycling

9/10

Walking

9/10

Camping

3/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit Australia, check out our Thornlie's climate page.

More climate data for Thornlie

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Thornlie climate overview or explore weather in Australia.