Boat Harbour Weather Forecast
- 20
- 28
Showers. Storm developing
- 20
- 25
Partly cloudy
- 20
- 25
Partly cloudy
- 20
- 29
Cloud clearing
- 21
- 33
Sunny
- 22
- 32
Sunny
- 22
- 36
Sunny
Today 4 Jan Sydney
Partly cloudy. High chance of showers, most likely in the afternoon. A thunderstorm likely, possibly severe with damaging winds, large hail and heavy rain which may lead to flash flooding in the afternoon and evening. Winds north to northeasterly 15 to 20 km/h tending northeast to southeasterly in the middle of the day then becoming light in the late evening.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- North to northeasterly 15 to 20 knots, reaching up to 25 knots offshore during the morning. Winds tending north to northwesterly 10 to 15 knots in the evening.
- Seas
- 1 to 2 metres.
- 1st Swell
- Southeasterly around 1 metre.
- Weather
- Partly cloudy. 70% chance of showers. A thunderstorm likely.
Boat Harbour Temperature Statistics View More
January Temperature
Sydney Airport (10km)
Lowest 2 January, 2026
17.2 °CAverage January
19.9 °CHighest 2 January, 2026
24.1 °C
Climate (2021–Present)
Sydney Airport (10km)
Average Low 2021–2026
14.8 °CAverage 2021–2026
18.7 °CAverage High 2021–2026
23.4 °C