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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 9 am Sunday 14 Sep 2025 AEST
How big are the waves at Portsea Back Beach today?
The current surf forecast for Portsea Back Beach at 2PM is: 1.6m 13s primary swell from a Southwest direction and 0.3m 12s secondary swell from a South-southwest direction (forecast issued at 09:00am September 14). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Sep) | 5.5ft (1.7m) | 13s |
| Afternoon (14 Sep) | 5ft (1.6m) | 13s |
| Evening (14 Sep) | 5ft (1.6m) | 13s |
Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)
Sunday 14 | Monday 15 | Tuesday 16 | Wed 17 | |||||||||||||||||||||
| 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 17 | 16 | 15 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 12 | 14 | 14 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1086 | 984 | 892 | 905 | 919 | 846 | 846 | 792 | 851 | 1611 | 1436 | 1020 | 965 | 722 | 623 | 689 | 617 | 587 | 782 | 1320 | 2576 | 3563 | 4511 | 2974 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- on | cross | cross | cross | cross | cross | cross | cross | cross- on | cross- on | cross- on |
High Tide / height (m) | 4:11AM 1.57 | 3:48PM 1.47 | 4:59AM 1.52 | 4:28PM 1.44 | 5:50AM 1.44 | 5:12PM 1.38 | ||||||||||||||||||
Low Tide / height (m) | 10:05AM 0.51 | 10:20PM 0.07 | 10:48AM 0.58 | 11:06PM 0.11 | 11:34AM 0.65 | 11:57PM 0.18 | ||||||||||||||||||
Sunday 14 | Monday 15 | Tuesday 16 | Wed 17 | |||||||||||||||||||||
| Sunrise | 6:24 | - | - | - | - | - | - | - | 6:22 | - | - | - | - | - | - | - | 6:20 | - | - | - | - | - | - | - |
| Sunset | - | - | - | 6:08 | - | - | - | - | - | - | - | 6:09 | - | - | - | - | - | - | - | 6:10 | - | - | - | - |
 | | | |  | |  | |  | | | | |  | |  |  | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - |
| Temp. °C | 12 | 14 | 19 | 20 | 19 | 17 | 16 | 15 | 14 | 17 | 20 | 21 | 20 | 14 | 17 | 13 | 12 | 13 | 15 | 15 | 14 | 12 | 11 | 11 |
| Feels °C (?) | 6 | 7 | 12 | 14 | 13 | 10 | 9 | 7 | 4 | 7 | 12 | 10 | 13 | 11 | 11 | 7 | 7 | 6 | 6 | 6 | 5 | 3 | 2 | 2 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for VIC - Mornington Peninsula
The wind is still cross-off at Portsea Back Beach (fresh winds from the NNW at Point Wilson 29 km from Portsea Back Beach). A 1.1m groundswell from the SW
29 km away, 1 h 22 min ago
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