Upper Swan Weather in December

Upper Swan in December sees very high daytime temperatures of 31°C (88°F) and nighttime lows of 16°C (61°F). With just 12 mm (0.5 in) of rainfall on average, it's the driest month of the year.

Rainfall in Upper Swan in December

The risk of rain is at its lowest this month, making it a reliable choice for outdoor plans. This month experiences about 4 days of rain according to historical data, averaging 12 mm (0.5 in). 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 Upper Swan in December

The perfect temperature in Upper Swan in December makes it a solid month to visit, with 31°C (88°F) during the day and 16°C (61°F) at night. It's usually most comfortable outside during the morning and later in the day. Nights drop to around 16°C (61°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Upper Swan in December

The city usually sees around 354 hours of sunlight, indicating many sunny days — a great month for sightseeing.

Wind Speed in Upper Swan in December

Average wind conditions reach 7 m/s (14 knots) in December. This indicates a windy month with strong breezes dominating the weather pattern. Remember this is an average: while most days are notably windy, some calmer periods occur alongside more stormy conditions.

Average water temperature in December

At 19°C (66°F), the water is getting there — comfortable enough for most swimmers, though those used to warmer seas may still find it a touch cool.

If you prefer dry days with pleasant temperatures, April, May, September, October and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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 Upper Swan's climate page.

Upper Swan Temperature in December

Min Temperature 16°C (61°F)  

Max Temperature 31°C (88°F)  

Water Temperature 19°C (66°F) *  

Chance of Rain 13%  

Precipitation 12 mm (0.5 in)  

Rainy days 4 days  

Humidity 41% *  

Windspeed 7 m/s (14 knots) *  

Sunshine 354 hours *  

Percentage Sunshine *  

* Data from: Perth, Australia (19 KM, 12 Miles).

What to Wear in Upper Swan 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). Almost no rain is expected, so no need to bring rain gear. Expect water temperatures of around 19°C (66°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Upper Swan 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 Upper Swan's climate page.

More climate data for Upper Swan

Temperature Rainfall Sunshine Humidity Wind Speed Water Temp

See the full Upper Swan climate overview or explore weather in Australia.