South West Island Weather Forecast
- 16
- 29
Sunny
- 13
- 29
Sunny
- 9
- 30
Sunny
- 10
- 30
Sunny
- 13
- 27
Sunny
- 14
- 27
Partly cloudy
- 13
- 27
Sunny
Today 7 Jul Kakadu National Park
Sunny. Winds southeasterly 20 to 30 km/h becoming light in the late afternoon.
Roper Groote Coast
Cape Arnhem to QLD-NT Border- Wind
- Southeasterly 15 to 20 knots, reaching up to 25 knots offshore south of Numbulwar during the morning.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres east of Groote Eylandt.
- 1st Swell
- East to southeasterly below 1 metre.
- Weather
- Mostly sunny.
- Weather Situation
- A ridge will peak in strength over coastal waters, then weaken from Tuesday, as a high [1022 hPa] moves across central Australia.
South West Island Temperature Statistics View More
July Temperature
Centre Island (16km)
Lowest 4 July, 2025
16.7 °CAverage July
20.6 °CHighest 5 July, 2025
25.8 °C
Climate (2020–Present)
Centre Island (16km)
Average Low 2020–2025
24.5 °CAverage 2020–2025
27.4 °CAverage High 2020–2025
31.6 °C