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Portsea Back Beach Surf Forecast
/ VIC – Mornington Peninsula (24 breaks) / Victoria (127 breaks) /
Surf Forecasts:
Portsea Back Beach surfForecast / VIC – Mornington Peninsula / Australia
48hr Weather and Surf, issued 10 pm Wednesday 03 Dec 2025 AEDTForecast update in hr min s Forecast update imminent
Portsea Back Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Portsea Back Beach sea temperature is
15.2° C
(Which is normal for this time of year)How big are the waves at Portsea Back Beach today?
The current surf forecast for Portsea Back Beach at 4AM is: 1.4m 11s primary swell from a Southwest direction and 0.6m 18s secondary swell from a Southwest direction (forecast issued at 10:00pm December 03). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Dec) | 4.5ft (1.4m) | 11s |
| Afternoon (04 Dec) | 5.5ft (1.7m) | 15s |
| Evening (04 Dec) | 8ft (2.5m) | 14s |
Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wed 03 | Thursday 04 | Friday 05 | Saturday 06 | |||||||||||||||||||||
| 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |   |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 11 | 11 | 11 | 11 | 11 | 16 | 15 | 14 | 14 | 13 | 13 | 13 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 396 | 488 | 479 | 479 | 431 | 553 | 1212 | 1724 | 2350 | 767 | 744 | 802 | 666 | 827 | 1182 | 1311 | 1226 | 1136 | 1003 | 824 | 657 | 522 | 545 | 967 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross | on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross- on | on | cross | cross | cross- on | cross- off | cross | on |
High Tide / height (m) | 11:10PM 1.32 | 10:25AM 1.23 | 12:20AM 1.42 | 11:27AM 1.26 | 1:20AM 1.52 | 12:28PM 1.29 | ||||||||||||||||||
Low Tide / height (m) | 4:57AM 0.76 | 5:13PM 0.20 | 6:13AM 0.76 | 6:14PM 0.12 | 7:19AM 0.71 | |||||||||||||||||||
Wed 03 | Thursday 04 | Friday 05 | Saturday 06 | |||||||||||||||||||||
| Sunrise | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:50 | - | - | - |
| Sunset | 8:30 | - | - | - | - | - | - | - | 8:30 | - | - | - | - | - | - | - | 8:31 | - | - | - | - | - | - | - |
 |  | |  |  | | |  | | | | | | | | | |  | | | | |  | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - |
| Temp. °C | 27 | 24 | 21 | 21 | 23 | 25 | 31 | 22 | 15 | 15 | 14 | 14 | 14 | 15 | 16 | 16 | 15 | 14 | 13 | 13 | 14 | 15 | 16 | 18 |
| Feels °C (?) | 23 | 19 | 17 | 16 | 16 | 16 | 23 | 16 | 8 | 12 | 12 | 13 | 13 | 14 | 13 | 11 | 12 | 12 | 11 | 11 | 10 | 12 | 13 | 12 |
- Map Icons:
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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