December weather forecastKogarah, Australia
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Kogarah, Australia, with an average temperature varying between 18.4°C (65.1°F) and 25.5°C (77.9°F).Temperature
Kogarah greets December with an average high-temperature of a still warm 25.5°C (77.9°F), marking a slight deviation from the preceding month. Throughout December, an average nighttime temperature of 18.4°C (65.1°F) is experienced.Humidity
In Kogarah, the average relative humidity in December is 71%.Rainfall
In Kogarah, during December, the rain falls for 10.5 days and regularly aggregates up to 23mm (0.91") of precipitation. Throughout the year, in Kogarah, there are 139.8 rainfall days, and 348mm (13.7") of precipitation is accumulated.Sea temperature
In December, the average sea temperature in Kogarah is 21.9°C (71.4°F).Note: When the surface water temperature is 21.9°C (71.4°F), most do not enjoy swimming. Breathing control becomes more complex as temperatures drop below 21°C (69.8°F).
Daylight
The month with the longest days in Kogarah, Australia, is December, with an average of 14h and 24min of daylight.On the first day of the month, sunrise is at 5:37 am and sunset at 7:51 pm. On the last day of December, sunrise is at 5:47 am and sunset at 8:09 pm AEDT.
Sunshine
The average sunshine in December in Kogarah is 9.7h.UV index
The months with the highest UV index in Kogarah are January, February and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 6 in December converts into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Kogarah, 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
Kogarah, 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
Kogarah, 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
Kogarah, 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
Kogarah, 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
Kogarah, 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
Kogarah, Australia
- Average sea temperature in December: 21.9°C
The best month for swimming (with the highest average sea temperature) is February (23.7°C).
The coldest month (with the lowest average sea temperature) is September (18.6°C).
Average daylight in December /
Average sunshine in December
Kogarah, 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
Kogarah, 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
Kogarah, 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
Kogarah, 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
Kogarah, 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).
