Thelma Head Weather Forecast
- 11
- 19
Partly cloudy
- 11
- 22
Sunny
- 13
- 20
Showers increasing
- 13
- 18
Shower or two
- 11
- 19
Partly cloudy
- 9
- 20
Mostly sunny
- 10
- 20
Mostly sunny
Today 23 Aug Sydney
Partly cloudy. Slight chance of a shower in the late morning and afternoon. Light winds becoming northeasterly 15 to 20 km/h in the early afternoon then becoming light in the evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Variable below 10 knots becoming northeasterly 10 to 15 knots in the early afternoon then tending northerly in the late evening. Winds reaching up to 20 knots south of Port Kembla in the evening.
- Seas
- Around 1 metre, increasing to 1 to 1.5 metres south of Port Kembla by early evening.
- 1st Swell
- Southerly 1.5 to 2 metres, decreasing to 1.5 metres later in the evening.
- Weather
- Partly cloudy.
- Weather Situation
- A high pressure system is forecast to move into the Tasman Sea later on Sunday. with winds tending north to northeasterly. Winds are forecast to freshen during early next week as the next front approaches the coastal waters, crossing by mid next week.
Thelma Head Temperature Statistics View More
August Temperature
Bellambi (24km)
Lowest 5 August, 2026
9.4 °CAverage August
14.6 °CHighest 21 August, 2026
23.2 °C
Climate (2021–2026)
Bellambi (24km)
Average Low 2021–2026
15.1 °CAverage 2021–2026
18 °CAverage High 2021–2026
21.8 °C