Mornington Island Weather Forecast
- 25
- 34
Storm
- 24
- 32
Storm
- 25
- 33
Storm
- 25
- 32
Storm
- 25
- 31
Storm
- 25
- 31
Storm
- 25
- 32
Storm
Today 17 Dec Gulf Country
Partly cloudy. Medium chance of showers, most likely in the afternoon and evening. A thunderstorm likely from the late morning, possibly severe with heavy rain which may lead to flash flooding in the southeast in the afternoon and evening. Winds east to northeasterly 15 to 25 km/h becoming light in the late evening. Daytime maximum temperatures in the mid to high 30s.
South East Gulf of Carpentaria
- Wind
- East to northeasterly 10 to 15 knots becoming variable about 10 knots in the early afternoon.
- Seas
- Below 1 metre.
- Weather
- Partly cloudy. 50% chance of showers. The chance of a thunderstorm.
- Weather Situation
- A weak pressure gradient extends over the Gulf waters. A tropical low and associated trough developing over the Arafura Sea are forecast to move southwards near the western Gulf waters later this week.
Mornington Island Temperature Statistics View More
December Temperature
Sweers Island (69km)
Lowest 2 December, 2025
19 °CAverage December
30.6 °CHighest 13 December, 2025
34.5 °C
Climate (2020–Present)
Sweers Island (69km)
Average Low 2020–2025
23.4 °CAverage 2020–2025
26.7 °CAverage High 2020–2025
30.3 °C