Thelma Head Weather Forecast
- 16
- 33
Mostly sunny
- 17
- 23
Partly cloudy
- 17
- 36
Becoming windy. Partly cloudy
- 17
- 22
Partly cloudy
- 14
- 24
Partly cloudy
- 15
- 24
Partly cloudy
- 17
- 25
Shower or two
Today 20 Oct Sydney
Sunny. Light winds becoming west to northwesterly 15 to 20 km/h in the early afternoon then becoming light in the late evening.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Northerly 15 to 25 knots shifting south to southeasterly in the evening. Winds reaching up to 30 knots inshore in the evening.
- Seas
- 1 to 2 metres, decreasing to 1 metre during the morning, then increasing to 1 to 1.5 metres during the afternoon.
- 1st Swell
- Northeasterly around 1 metre inshore, increasing to 1 to 1.5 metres offshore south of Port Kembla during the morning.
- Weather
- Mostly sunny.
- Weather Situation
- Strong northerly winds along the coast will shift southerly over the southern waters as a trough moves through later today. The southerly change will reaching central parts of the coast Tuesday morning, before weakening late Tuesday.
Thelma Head Temperature Statistics View More
October Temperature
Bellambi (24km)
Lowest 2 October, 2025
12 °CAverage October
19.6 °CHighest 17 October, 2025
31.7 °C
Climate (2020–Present)
Bellambi (24km)
Average Low 2020–2025
15 °CAverage 2020–2025
18 °CAverage High 2020–2025
21.7 °C