Thelma Head Weather Forecast
- 14
- 22
Sunny
- 12
- 22
Shower or two
- 12
- 18
Morning shower or two
- 9
- 18
Shower or two. Becoming windy
- 10
- 17
Partly cloudy
- 10
- 21
Partly cloudy
- 10
- 22
Sunny
Today 6 Sep Sydney
Mostly sunny. Winds west to southwesterly 20 to 30 km/h tending southeast to southwesterly 15 to 25 km/h in the middle of the day then becoming light in the late evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- West to southwesterly 20 to 25 knots turning southerly 15 to 25 knots in the early afternoon. Winds reaching up to 30 knots offshore during the afternoon and evening.
- Seas
- 1.5 to 2.5 metres.
- 1st Swell
- Southerly 1 to 2 metres, increasing to 2 to 3 metres around midday.
- Weather
- Mostly sunny.
- Weather Situation
- A cold front is crossing northeast NSW Sunday morning then will move offshore into the Tasman Sea through the day. Another weak ridge is forecast in the wake of the front Sunday, followed by a series of fronts slipping south of the state through Monday onwards.
Thelma Head Temperature Statistics View More
September Temperature
Bellambi (24km)
Lowest 1 September, 2026
12.6 °CAverage September
19.2 °CHighest 2 September, 2026
27.5 °C
Climate (2021–2026)
Bellambi (24km)
Average Low 2021–2026
15.1 °CAverage 2021–2026
18 °CAverage High 2021–2026
21.8 °C