December weather forecastBirkenhead, Australia
December
Weather in December
December, the first month of the summer in Birkenhead, is a moderately hot month, with an average temperature varying between 23.8°C (74.8°F) and 16.8°C (62.2°F).Temperature
The arrival of December coincides with an average high-temperature of a moderately hot 23.8°C (74.8°F), indicating a minimal shift from November's 21.4°C (70.5°F). During December, the nighttime temperature averages to a refreshing 16.8°C (62.2°F).Humidity
The average relative humidity in December in Birkenhead, Australia, is 59%.Rainfall
In December, the rain falls for 7 days. Throughout December, 18mm (0.71") of precipitation is accumulated. Throughout the year, there are 107.3 rainfall days, and 277mm (10.91") of precipitation is accumulated.Sea temperature
In Birkenhead, Australia, in December, the average water temperature is 19.8°C (67.6°F).Note: Most people find it challenging to enjoy swimming in water that is 19.8°C (67.6°F). As water temperature falls below 21°C (69.8°F), controlling breathing grows increasingly difficult.
Daylight
December has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of December in Birkenhead, sunrise is at 5:55 am and sunset at 8:14 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 8:32 pm ACDT.
Sunshine
The month with the most sunshine in Birkenhead is December, with an average of 10.1h of sunshine.UV index
January, February and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The daily maximum UV index of 6 in December interprets into the following advice:
Deter overexposure. Protecting against the sun's effects is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Birkenhead, Australia
- Average high temperature in December: 23.8°C
The warmest month (with the highest average high temperature) is January (25.9°C).
The month with the lowest average high temperature is July (14.2°C).
- Average low temperature in December: 16.8°C
The month with the highest average low temperature is January (18.3°C).
The coldest month (with the lowest average low temperature) is August (10°C).
Average pressure in December
Birkenhead, Australia
- Average pressure in December: 1013mbar
The month with the highest atmospheric pressure is June (1021.8mbar).
The month with the lowest atmospheric pressure is January (1012.4mbar).
Average wind speed in December
Birkenhead, Australia
- Average wind speed in December: 15.4km/h
The windiest month (with the highest average wind speed) is August (17.5km/h).
The calmest month (with the lowest average wind speed) is April (13.9km/h).
Average humidity in December
Birkenhead, Australia
- Average humidity in December: 59%
The month with the highest relative humidity is July (73%).
The month with the lowest relative humidity is January (58%).
Average rainfall in December
Birkenhead, Australia
- Average rainfall in December: 18mm
The wettest month (with the highest rainfall) is August (35mm).
The driest months (with the least rainfall) are January, February and March (14mm).
Average rainfall days in December
Birkenhead, Australia
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is July (13.9 days).
The month with the least rainy days is February (4.8 days).
Average sea temperature in December
Birkenhead, Australia
- Average sea temperature in December: 19.8°C
The best months for swimming (with the highest average sea temperature) are January and February (21.3°C).
The coldest month (with the lowest average sea temperature) is August (13.7°C).
Average daylight in December /
Average sunshine in December
Birkenhead, 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: 10h and 6min
The month with the most sunshine is December (Average sunshine: 10h and 6min).
The month with the least sunshine is August (Average sunshine: 7h and 12min).
Average sunshine days in December
Birkenhead, Australia
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is July (15.8 days).
Average UV index in December
Birkenhead, 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
Birkenhead, Australia
- Average cloud cover in December: 24
The months with the most cloud cover are May and July (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 19).
Average visibility in December
Birkenhead, 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).
