December weather forecastMullumbimby, Australia
December
Weather in December
December, the first month of the summer in Mullumbimby, is still a warm month, with an average temperature ranging between min 20.8°C (69.4°F) and max 25.5°C (77.9°F).Temperature
Mullumbimby marks the arrival of December with an average high-temperature of a still warm 25.5°C (77.9°F), hardly different from November's 24.6°C (76.3°F). During December, Mullumbimby's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 20.8°C (69.4°F).Humidity
In December, the average relative humidity in Mullumbimby, Australia, is 77%.Rainfall
In Mullumbimby, in December, it is raining for 18.6 days, with typically 79mm (3.11") of accumulated precipitation. Throughout the year, in Mullumbimby, there are 197.8 rainfall days, and 867mm (34.13") of precipitation is accumulated.Daylight
The month with the longest days is December, with an average of 13h and 54min of daylight.On the first day of the month, sunrise is at 5:40 am and sunset at 7:29 pm. On the last day of December, in Mullumbimby, sunrise is at 5:51 am and sunset at 7:46 pm AEDT.
Sunshine
In December, the average sunshine in Mullumbimby is 9.6h.UV index
The months with the highest UV index are January through March, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 6 during December translates into the following guidance:
Ward off overexposure. Defence against solar harm is crucial. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mullumbimby, Australia
- Average high temperature in December: 25.5°C
The warmest month (with the highest average high temperature) is January (26.5°C).
The month with the lowest average high temperature is July (18.3°C).
- Average low temperature in December: 20.8°C
The months with the highest average low temperature are January and February (21.8°C).
The coldest month (with the lowest average low temperature) is July (13.3°C).
Average pressure in December
Mullumbimby, Australia
- Average pressure in December: 1013.6mbar
The month with the highest atmospheric pressure is July (1020.5mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).
Average wind speed in December
Mullumbimby, Australia
- Average wind speed in December: 17.4km/h
The windiest month (with the highest average wind speed) is October (18km/h).
The calmest month (with the lowest average wind speed) is May (15.3km/h).
Average humidity in December
Mullumbimby, Australia
- Average humidity in December: 77%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is August (70%).
Average rainfall in December
Mullumbimby, Australia
- Average rainfall in December: 79mm
The wettest month (with the highest rainfall) is February (123mm).
The driest month (with the least rainfall) is September (29mm).
Average rainfall days in December
Mullumbimby, Australia
- Average rainfall days in December: 18.6 days
The month with the highest number of rainy days is March (23.1 days).
The month with the least rainy days is September (10.5 days).
Average daylight in December /
Average sunshine in December
Mullumbimby, Australia
- Average daylight in December: 13h and 54min
The month with the longest days is December (Average daylight: 13h and 54min).
The month with the shortest days is June (Average daylight: 10h and 24min).
- Average sunshine in December: 9h and 36min
The month with the most sunshine is November (Average sunshine: 10h and 30min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in December
Mullumbimby, Australia
- Average sunshine days in December: 9.3 days
The month with the most sunshine days is August (17.3 days).
The month with the least sunshine days is March (5.8 days).
Average UV index in December
Mullumbimby, Australia
- Average UV index in December: 6
The months with the highest UV index are January, February, March, October, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 5).
Average cloud cover in December
Mullumbimby, Australia
- Average cloud cover in December: 39
The months with the most cloud cover are February and March (Cloud cover 44).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Mullumbimby, 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).





