December weather forecastCoolup, Australia
December
Weather in December
The first month of the summer, December, is a moderately hot month in Coolup, Australia, with an average temperature ranging between max 25.1°C (77.2°F) and min 17.2°C (63°F).Temperature
The transition from November to December sees an average high-temperature of a warm 25.1°C (77.2°F), indicating a minor variance from the prior month. During December, the average low-temperature is a refreshing 17.2°C (63°F).Humidity
The average relative humidity in December is 62%.Rainfall
The month with the least rainfall in Coolup is December, when the rain falls for 4.5 days and typically collects 7mm (0.28") of precipitation.Daylight
The month with the longest days in Coolup is December, with an average of 14h and 18min of daylight.On the first day of December in Coolup, sunrise is at 5:01 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 5:11 am and sunset at 7:27 pm AWST.
Sunshine
In December, the average sunshine is 11.4h.UV index
The months with the highest UV index are January, February and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 6 in December translates into this advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Coolup, Australia
- Average high temperature in December: 25.1°C
The warmest month (with the highest average high temperature) is February (27.2°C).
The month with the lowest average high temperature is July (16.4°C).
- Average low temperature in December: 17.2°C
The month with the highest average low temperature is February (19°C).
The coldest months (with the lowest average low temperature) are August and September (11.8°C).
Average pressure in December
Coolup, Australia
- Average pressure in December: 1013.1mbar
The month with the highest atmospheric pressure is July (1020.3mbar).
The month with the lowest atmospheric pressure is January (1012mbar).
Average wind speed in December
Coolup, Australia
- Average wind speed in December: 19.8km/h
The windiest month (with the highest average wind speed) is January (20.1km/h).
The calmest month (with the lowest average wind speed) is April (16.7km/h).
Average humidity in December
Coolup, Australia
- Average humidity in December: 62%
The months with the highest relative humidity are July and August (74%).
The month with the lowest relative humidity is January (61%).
Average rainfall in December
Coolup, Australia
- Average rainfall in December: 7mm
The wettest month (with the highest rainfall) is June (79mm).
The driest month (with the least rainfall) is December (7mm).
Average rainfall days in December
Coolup, Australia
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is July (18 days).
The month with the least rainy days is February (3.3 days).
Average daylight in December /
Average sunshine in December
Coolup, Australia
- Average daylight in December: 14h and 18min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in December: 11h and 24min
The month with the most sunshine is January (Average sunshine: 11h and 30min).
The month with the least sunshine is August (Average sunshine: 5h and 36min).
Average sunshine days in December
Coolup, Australia
- Average sunshine days in December: 25.4 days
The month with the most sunshine days is December (25.4 days).
The month with the least sunshine days is August (10.7 days).
Average UV index in December
Coolup, 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
Coolup, Australia
- Average cloud cover in December: 15
The month with the most cloud cover is July (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in December
Coolup, 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).





