Churchill Island Weather Forecast
- 13
- 20
Rain
- 13
- 19
Possible shower
- 13
- 19
Shower or two
- 13
- 20
Shower or two. Becoming windy
- 12
- 17
Cloudy
- 12
- 18
Cloudy
- 12
- 22
Sunny
Today 21 Dec Central
Cloudy. Very high chance of rain, becoming less likely in the evening. A thunderstorm likely in the morning and afternoon, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding. Winds northeast to southeasterly 15 to 20 km/h tending south to southeasterly in the middle of the day then turning southwesterly 20 to 30 km/h in the early afternoon. Daytime maximum temperatures between 18 and 23.
Western Port Local Waters
- Wind
- Southeasterly 10 to 15 knots shifting west to southwesterly 15 to 20 knots in the evening. Winds reaching up to 30 knots west of Sandy Point in the evening.
- Seas
- Below 1 metre, increasing to 1 to 1.5 metres west of Sandy Point during the afternoon.
- Weather
- Cloudy. 90% chance of rain. The chance of a thunderstorm in the afternoon.
- Weather Situation
- A low pressure system south of the Bight will move east and combine with a broad trough over western Victoria early Sunday. The low pressure system will then deepen and slowly move southeast across the State during Sunday to clear into eastern Bass Strait late Sunday. A high pressure ridge then builds across Victoria and Bass Strait during Monday. A weak cold front crosses Bass Strait during late Monday and early Tuesday with the ridge re-establishing itself from Tuesday to Thursday.
Churchill Island Temperature Statistics View More
December Temperature
Rhyll (4km)
Lowest 7 December, 2025
8.6 °CAverage December
16.8 °CHighest 18 December, 2025
35.3 °C
Climate (2020–Present)
Rhyll (4km)
Average Low 2020–2025
12.1 °CAverage 2020–2025
15.1 °CAverage High 2020–2025
19.2 °C