Williamstown Weather in December

December in Williamstown sees daytime temperatures around 27°C (81°F) and lows of 13°C (55°F) at night. The perfect weather makes it a good time to visit.

Rainfall in Williamstown in December

Expect around 7 days of rain based on historical data, with 33 mm (1.3 in) average. Rain days are few and the total is low, so this is a largely dry month. Any showers that do occur tend to be brief.

Temperature in Williamstown in December

Weather in Williamstown is at its perfect in December. Highs reach 27°C (81°F), while nights settle around 13°C (55°F). December is a notable month of the summer season. This kind of day-to-night contrast is typical for this time of year. With lows of 13°C (55°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.

Sunshine in Williamstown in December

The days are predominantly sunny, with an estimated total of around 294 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

So this is a great month to visit if you prefer dry days with pleasant temperatures.

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 Williamstown's climate page.

Williamstown Temperature in December

Min Temperature 13°C (55°F)  

Max Temperature 27°C (81°F)  

Chance of Rain 22%  

Precipitation 33 mm (1.3 in)  

Rainy days 7 days  

Humidity 39% *  

Sunshine 294 hours *  

Percentage Sunshine 54% *  

* Data from: Adelaide, Australia (39 KM, 24 Miles).

What to Wear in Williamstown in December

Warm weather calls for comfortable, breathable clothing in December. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Some rain is possible, so pack something to handle light showers. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Williamstown in December

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

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

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 Williamstown's climate page.

More climate data for Williamstown

Temperature Rainfall Sunshine Humidity

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