Thelma Head Weather Forecast
- 19
- 23
Showers
- 19
- 24
Showers
- 18
- 26
Possible shower
- 18
- 28
Partly cloudy
- 19
- 30
Mostly sunny
- 19
- 25
Shower or two
- 17
- 23
Shower or two
Today 8 Mar Sydney
Cloudy. Very high chance of showers, most likely in the afternoon and evening. The chance of a thunderstorm in the morning and afternoon, possibly severe with heavy rain which may lead to flash flooding in the morning and early afternoon. Winds south to southeasterly 20 to 30 km/h.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- South to southeasterly 15 to 25 knots, reaching up to 30 knots inshore during the morning.
- Seas
- 1 to 1.5 metres, increasing to 1 to 2 metres during the morning.
- 1st Swell
- Southerly around 1 metre, increasing to 1 to 1.5 metres during the morning, then tending south to southeasterly 1.5 to 2 metres during the afternoon.
- Weather
- Cloudy. 95% chance of showers. The chance of a thunderstorm during the morning and afternoon.
- Weather Situation
- A weakening ridge of high pressure over the northern coast directs an east to northeasterly flow, while a slow moving trough sits over central parts of the coast. Winds over the southern and central coastal waters will continue fresh south to southeasterly during Sunday, before weakening and gradually turning east to northeasterly early next week as a high pressure system slips south and extends a ridge over the coastal waters early next week. Meanwhile, a low pressure system will deepen off the Gold Coast on Sunday, and drive a fresh southeasterly flow to the northern coast through early next week.
Thelma Head Temperature Statistics View More
March Temperature
Bellambi (24km)
Lowest 1 March, 2026
19.6 °CAverage March
22.8 °CHighest 5 March, 2026
26.7 °C
Climate (2021–Present)
Bellambi (24km)
Average Low 2021–2026
15 °CAverage 2021–2026
18 °CAverage High 2021–2026
21.8 °C