AustraliaAverage weather for Rottnest Island in December
It's warm in December in Rottnest Island with an average temperature of 29°C. Temperatures this month range from a low of 25°C to a high of 33°C. At night, you can expect temperatures between 15°C and 20°C.
Start of December
The month of December starts in Rottnest Island with hot temps, averaging around 28°C during the day and nights around 17°C. There’s little chance of precipitation. The weather’s mostly sunny and dry.
With the temperature difference between day and night, it’s smart to wear layers.
Mid December
By mid-December, daytime temps stay steady at around 28°C, with nights around 17°C. Not much precipitation expected during this period. It’s mostly dry and sunny.
Since it cools down at night, it’s a good idea to wear layers.
End of December
By the end of December, the average daytime temperature in Rottnest Island is around 30°C, while nighttime temps are about 19°C. No precipitation expected at the end of the month; it’ll be mostly sunny.
Because temperatures drop in the evening, wearing layers is recommended.
In December, there is an average of 16 mm of precipitation, spread over 1 day. The wind speed is around 6 Bft, mostly coming from the South.
Rottnest Island in December |
New York | ||
|---|---|---|---|
 Average temperature |
29°C | 9°C | |
 Max. temperature |
33°C | 12°C | |
| Min. temperature |
25°C | -5°C | |
 Total precipitation |
16 mm | 133 mm | |
| Rainy days |
1 day | 17 days | |
November
UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is December a good time to visit Rottnest Island?
Looking for great weather? December is a good time to be in Rottnest Island. The temperatures are nice, and there’s little chance of rain this month.
Temperature records
With 42°C in 2021, Rottnest Island reached the highest temperature in December over the past 10 years. The lowest daytime temperature in this month was 18°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 6°C to a highest value of 27°C.
Check out the climate of Rottnest Island for all months and discover the best travel time
Curious about the weather in other parts of Australia? Check out the climate and weather for spots like Sydney, Gold Coast, Melbourne, or explore other destinations in Australia.
Daily Temperature in December in Rottnest Island
This chart shows the average daily high and low temperatures in December for Rottnest Island, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in December in Rottnest Island
The chart below shows the average daily precipitation in December for Rottnest Island, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for December, you can expect about 1 day of precipitation in Rottnest Island.
Daily UV index in December in Rottnest Island
This chart shows the average daily UV index in December in Rottnest Island, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in December in Rottnest Island over the years
This chart shows the average temperature in December in Rottnest Island, measured in degrees Celsius, over the past few years.
Total precipitation in December in Rottnest Island over the years
This chart shows the average precipitation in December in Rottnest Island, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in December for Rottnest Island
Click on any day in December to get detailed info about the usual weather on that day in Rottnest Island. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in December in Rottnest Island
Have you been to Rottnest Island in December?
Share your weather experience in December in Rottnest Island.
Average weather in Rottnest Island by month
Click on a month below to see detailed weather info for Rottnest Island. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Rottnest Island for all months at once
