Summercloud Bay Weather Forecast
- 20
- 28
Showers. Possible storm
- 20
- 28
Possible shower
- 20
- 26
Shower or two
- 19
- 27
Showers increasing
- 19
- 24
Showers
- 18
- 26
Shower or two
- 17
- 27
Partly cloudy
Today 4 Mar Illawarra
Cloudy. Very high chance of showers, most likely in the morning and afternoon. The chance of a thunderstorm in the afternoon and evening, possibly severe with heavy rain which may lead to flash flooding. Light winds becoming north to northeasterly 15 to 20 km/h in the middle of the day then becoming light in the late afternoon. Overnight temperatures falling to between 17 and 21 with daytime temperatures reaching the mid to high 20s.
Illawarra Coastal Waters
Port Hacking to Ulladulla- Wind
- Northerly 15 to 20 knots, reaching up to 25 knots offshore during the afternoon and evening.
- Seas
- 1 to 1.5 metres, increasing to 1.5 to 2 metres around midday.
- 1st Swell
- South to southeasterly around 1 metre.
- Weather
- Partly cloudy. 80% chance of showers. The chance of a thunderstorm late this afternoon and evening.
- Weather Situation
- A slow moving high pressure system over the Tasman Sea extends a ridge to the state's east, maintaining fresh northeasterly airstream over coastal waters. The ridge is forecast to persist over the north coast through the week while a trough brushes the south coast early today then weakens. Then, another trough is expected to cross the southern half of the coast on Friday and stalls about the central part of the coast. This will be followed by the second high pressure system passing to the south, maintaining onshore easterly airstream later in the week.
Summercloud Bay Temperature Statistics View More
March Temperature
Point Perpendicular (14km)
Lowest 2 March, 2026
20.4 °CAverage March
21.7 °CHighest 2 March, 2026
24.9 °C
Climate (2021–Present)
Point Perpendicular (14km)
Average Low 2021–2026
14.7 °CAverage 2021–2026
17.4 °CAverage High 2021–2026
20.8 °C