Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
The transition into December notes an average high-temperature of a still warm 24.8°C (76.6°F), revealing a mild distinction from the 23.5°C (74.3°F) in November. December brings with it a nighttime average temperature of 18.5°C (65.3°F).Humidity
The average relative humidity in December is 73%.Rainfall
In Balgowlah, during December, the rain falls for 13 days and regularly aggregates up to 42mm (1.65") of precipitation. Throughout the year, in Balgowlah, there are 152.6 rainfall days, and 635mm (25") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of December, sunrise is at 5:37 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:08 pm AEDT.
Sunshine
In December, the average sunshine is 9.9h.UV index
January, February and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 6 during December translates into the following recommendations:
Prevent overexposure. Protection from the sun's harmful effects is needed. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What is the average humidity in December?
How many days does it rain in December?
When are the longest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Balgowlah have in December?
What is the month with the highest UV index?
How high is the UV index in December?
Average temperature in December
Balgowlah, Australia
- Average high temperature in December: 24.8°C
The warmest month (with the highest average high temperature) is January (26.2°C).
The month with the lowest average high temperature is July (16.4°C).
- Average low temperature in December: 18.5°C
The month with the highest average low temperature is January (20.3°C).
The coldest months (with the lowest average low temperature) are July and August (10.9°C).
Average pressure in December
Balgowlah, Australia
- Average pressure in December: 1013.4mbar
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
Balgowlah, Australia
- Average wind speed in December: 16.5km/h
The windiest month (with the highest average wind speed) is August (16.8km/h).
The calmest month (with the lowest average wind speed) is April (14.6km/h).
Average humidity in December
Balgowlah, Australia
- Average humidity in December: 73%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (66%).
Average rainfall in December
Balgowlah, Australia
- Average rainfall in December: 42mm
The wettest month (with the highest rainfall) is February (95mm).
The driest month (with the least rainfall) is September (32mm).
Average rainfall days in December
Balgowlah, Australia
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is September (8.7 days).
Average daylight in December /
Average sunshine in December
Balgowlah, Australia
- Average daylight in December: 14h and 2min
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 5min
The month with the most sunshine is November (Average sunshine: 10h and 0min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).
Average sunshine days in December
Balgowlah, Australia
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is August (20.4 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in December
Balgowlah, 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 June, July, August and September (UV index 4).
Average cloud cover in December
Balgowlah, Australia
- Average cloud cover in December: 36
The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Balgowlah, 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).
