Gymea Bay Weather Forecast
- 22
- 28
Shower or two
- 21
- 23
Showers
- 21
- 24
Shower or two
- 22
- 25
Shower or two
- 22
- 25
Shower or two
- 21
- 25
Shower or two
- 20
- 26
Possible shower
Today 25 Feb Sydney
Mostly sunny. Medium chance of showers late this afternoon and evening. The chance of a thunderstorm during this afternoon and evening. Light winds becoming southeasterly 20 to 30 km/h in the early afternoon then tending southerly in the evening.
Sydney Coastal Waters
Broken Bay to Port Hacking- Wind
- Northerly 15 to 20 knots tending northeasterly in the middle of the day then becoming variable about 10 knots in the late evening.
- Seas
- 1 to 1.5 metres, decreasing to 1 metre around midday.
- 1st Swell
- Northeasterly below 1 metre.
- Weather
- Mostly sunny day. 60% chance of showers late this afternoon and evening.
- Weather Situation
- A high pressure system over the Tasman Sea extends a ridge towards the north coast. A trough is forecast to cross the southern and central parts of the coast today, bringing a fresh southerly wind change in its wake, before stalling about the Central Coast on Thursday and gradually weakening later in the week. This system will be followed by a high pressure system passing to the south, maintaining onshore easterly airstream across the coastal waters through the second half of the week.
Gymea Bay Temperature Statistics View More
February Temperature
Sydney Airport (13km)
Lowest 3 February, 2026
16.4 °CAverage February
23.4 °CHighest 5 February, 2026
37.4 °C
Climate (2021–Present)
Sydney Airport (13km)
Average Low 2021–2026
14.8 °CAverage 2021–2026
18.7 °CAverage High 2021–2026
23.4 °C