Mullumbimby Weather Forecast
- 20
- 25
Cloudy
- 18
- 27
Partly cloudy
- 17
- 31
Sunny
- 19
- 32
Mostly sunny
- 21
- 34
Becoming windy. Sunny
- 22
- 34
Wind easing. Mostly sunny
- 23
- 32
Shower or two
Today 17 Dec Northern Rivers
Cloudy. Slight chance of a shower. Winds south to southeasterly 15 to 20 km/h tending east to southeasterly in the late morning and afternoon. Daytime maximum temperatures in the mid to high 20s.
Mullumbimby Temperature Statistics View More
December Temperature
Cape Byron (16km)
Lowest 3 December, 2025
16.6 °CAverage December
23 °CHighest 10 December, 2025
31 °C
Climate (2020–Present)
Cape Byron (16km)
Average Low 2020–2025
17.3 °CAverage 2020–2025
20.2 °CAverage High 2020–2025
23.7 °C