Summary | Weather Forecast | Diving Forecast | Model
Summary
Forecast for the next 7 days according to Reefranger:
Today’s ocean temperature at Portsea Pier is 18.5°C, which is comfortable but may still require a 3mm wetsuit for extended dives. The swell is manageable at 1.6 meters from the SW, but the 24.8 km/h southerly wind could create surface chop, making conditions less ideal for snorkeling or diving. As the week progresses, Friday stands out as potentially the best day, with the lowest swell at 0.9 meters and wind speed reduced to 17.6 km/h from the south, offering calmer conditions. Avoid Tuesday and Wednesday due to higher swells and strong winds exceeding 30 km/h, creating rough conditions.
Weather Forecast
Surface Conditions
Weather Conditions
Saturday
15.4°
20°
Sunday
13.6°
19.6°
Monday
14°
19.5°
Tuesday
12.9°
18.3°
Wednesday
12°
17.2°
Thursday
11.5°
17.3°
Friday
11.2°
18.6°
Note that local weather not directly impact diving scores. Still useful if you prefer to dive in the sun and without rain.
Diving Forecast
These are the reefranger ratings for the next 7 days. Ratings are available for the morning, low tide, and high tide. Tides are shown during the daytime (6am to 8pm). Ratings currently take into account Swell Height, Swell Direction, and location exposure based on swell direction versus the orientation of the site.
Scores reflect the ocean conditions in the 2 hours between 8am and 10am, and consider local heavy rainfall in the period prior.
1.3m 14sec
16.6 km/h S
1.6m 14sec
22.7 km/h S
1.6m 14sec
19.8 km/h S
1.3m 12sec
33.5 km/h S
1.8m 12sec
29.9 km/h SSE
1.0m 11sec
20.5 km/h S
0.9m 14sec
17.6 km/h NW
Scores reflect the ocean conditions in the 2 hours after low tide, and consider local heavy rainfall in the period prior.
15:06
1.5m 14sec
24.8 km/h S
16:31
1.4m 13sec
24.5 km/h S
17:48
1.3m 12sec
24.8 km/h S
18:47
1.9m 7sec
35.6 km/h S
19:37
1.4m 12sec
27.7 km/h SSE
07:46
1.1m 11sec
21.6 km/h S
Rating not found (location:32, day:6, period:low)
0.9m 14sec
17.6 km/h NW
Scores reflect the ocean conditions in the 2 hours after hight tide, and consider local heavy rainfall in the period prior.
09:52
1.3m 14sec
19.1 km/h S
11:12
1.5m 13sec
22.7 km/h S
12:18
1.3m 12sec
22.3 km/h S
13:16
1.8m 12sec
34.9 km/h S
14:09
1.5m 12sec
27.4 km/h SSE
14:59
0.9m 11sec
20.2 km/h S
Rating not found (location:32, day:6, period:high)
0.9m 14sec
17.6 km/h NW
Model
Swell and wind impact diving suitability, but not all swells and winds are equal. A dive site may be protected from wind and swell by nearby geography. The model uses these exposure ratings to determine how much impact a wind and swell will have on the dive site, based on the origin of the winds or waves.