December weather forecastBundeena, Australia
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Bundeena, Australia, with an average temperature ranging between max 25.5°C (77.9°F) and min 18.4°C (65.1°F).Temperature
The shift from November to December is characterized by an average high-temperature of a still warm 25.5°C (77.9°F), not significantly different from the 23.8°C (74.8°F) of November. In Bundeena, in December, the average low-temperature is a comfortable 18.4°C (65.1°F).Humidity
The average relative humidity in December in Bundeena is 71%.Rainfall
In Bundeena, Australia, in December, during 10.5 rainfall days, 23mm (0.91") of precipitation is typically accumulated. In Bundeena, during the entire year, the rain falls for 139.8 days and collects up to 348mm (13.7") of precipitation.Sea temperature
In Bundeena, in December, the average water temperature is 21.6°C (70.9°F).Note: Swimming becomes less enjoyable for most at a surface water temperature of 21.6°C (70.9°F). As the temperature decreases below 21°C (69.8°F), breathing becomes increasingly difficult.
Daylight
With an average of 14h and 24min of daylight, December has the longest days of the year in Bundeena.On the first day of the month, sunrise is at 5:36 am and sunset at 7:52 pm. On the last day of December, sunrise is at 5:46 am and sunset at 8:10 pm AEDT.
Sunshine
In Bundeena, the average sunshine in December is 9.7h.UV index
January, February and December, with an average maximum UV index of 6, are months with the highest UV index in Bundeena. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 6 translates into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Notice! The reflection of water and sand increases the UV radiation significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bundeena, Australia
- Average high temperature in December: 25.5°C
The warmest month (with the highest average high temperature) is January (26.9°C).
The month with the lowest average high temperature is July (16.6°C).
- Average low temperature in December: 18.4°C
The months with the highest average low temperature are January and February (20.1°C).
The coldest month (with the lowest average low temperature) is July (10.1°C).
Average pressure in December
Bundeena, Australia
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is June (1020.8mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Bundeena, Australia
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is August (15.8km/h).
The calmest month (with the lowest average wind speed) is April (13.5km/h).
Average humidity in December
Bundeena, Australia
- Average humidity in December: 71%
The month with the highest relative humidity is February (75%).
The month with the lowest relative humidity is August (65%).
Average rainfall in December
Bundeena, Australia
- Average rainfall in December: 23mm
The wettest month (with the highest rainfall) is March (43mm).
The driest month (with the least rainfall) is September (17mm).
Average rainfall days in December
Bundeena, Australia
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (9.2 days).
Average sea temperature in December
Bundeena, Australia
- Average sea temperature in December: 21.6°C
The best month for swimming (with the highest average sea temperature) is February (23.8°C).
The coldest month (with the lowest average sea temperature) is September (18.4°C).
Average daylight in December /
Average sunshine in December
Bundeena, Australia
- Average daylight in December: 14h and 24min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 9h and 42min
The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in December
Bundeena, Australia
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is July (17.6 days).
The month with the least sunshine days is February (11.8 days).
Average UV index in December
Bundeena, Australia
- Average UV index in December: 6
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in December
Bundeena, Australia
- Average cloud cover in December: 37
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Bundeena, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
