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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 Wednesday 13 May 2026 AESTForecast 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
16.2° C
(Which is slightly warmer than usual)How big are the waves at Portsea Back Beach today?
The current surf forecast for Portsea Back Beach at 4PM is: 1.0m 14s primary swell from a Southwest direction and 0.5m 5s secondary swell from a Southeast direction (forecast issued at 09:00am May 13). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 3.5ft (1.1m) | 15s |
| Afternoon (13 May) | 3.5ft (1.0m) | 14s |
| Evening (13 May) | 3ft (0.9m) | 13s |
Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 20°C on Thu afternoon, min 13°C on Wed morning). Winds increasing (calm on Wed morning, fresh winds from the N by Fri night). | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Sat 16 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 21 | SW 20 | SW 19 | SW 18 | SW 17 | WSW 16 | WSW 16 | WSW 16 | SW 16 | WSW 15 | SW 14 | WSW 14 | |
542 | 528 | 387 | 361 | 345 | 246 | 242 | 202 | 158 | 146 | 118 | 92 | 222 | 478 | 693 | 1136 | 1086 | 1030 | 864 | 843 | 720 | 584 | 482 | 431 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | off | glassy | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | off | cross-off | off | off | off | off | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | |
High Tide | 7:20AM1.18m | 7:38PM1.26m | 8:36AM1.22m | 8:31PM1.25m | 9:52AM1.30m | 9:27PM1.27m | ||||||||||||||||||
Low Tide | 1:18PM0.64m | 2:05AM0.55m | 2:28PM0.72m | 3:06AM0.48m | 3:43PM0.78m | |||||||||||||||||||
 |  | | | | | | | | | | | |  | |  | |  | | | | | | | |
 | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | 7:15 |
 | — | — | — | 5:21 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:19 | — | — | — | 5:19 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 13 | 16 | 17 | 18 | 16 | 14 | 14 | 14 | 15 | 18 | 20 | 19 | 19 | 18 | 17 | 16 | 16 | 19 | 20 | 20 | 18 | 18 | 17 |
10 | 11 | 16 | 15 | 16 | 12 | 12 | 13 | 12 | 12 | 15 | 17 | 15 | 16 | 14 | 13 | 12 | 11 | 14 | 15 | 16 | 13 | 14 | 12 | |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 20 | SW 19 | SW 18 | SW 17 | WSW 16 | WSW 16 | WSW 16 | SW 16 | WSW 15 | SW 14 | WSW 14 |
 kJ | 542 | 528 | 387 | 361 | 345 | 246 | 242 | 202 | 158 | 146 | 118 | 92 | 90 | 478 | 693 | 1136 | 1086 | 1030 | 864 | 843 | 720 | 584 | 482 | 431 |
Swell 2 Height (m) Direction Period (s) | ESE 5 | SE 5 | ESE 5 | SE 5 | SE 4 | SE 5 | SE 5 | ESE 5 | SE 4 | SE 4 | SE 5 | SW 16 | SW 21 | SW 15 | SW 14 | SSW 19 | S 18 | SSW 18 | S 17 | — | S 16 | SSE 16 | SSE 15 | S 14 |
| kJ | 37 | 29 | 17 | 12 | 3 | 11 | 20 | 15 | 5 | 5 | 4 | 66 | 222 | 262 | 251 | 37 | 26 | 30 | 23 | — | 20 | 24 | 21 | 4 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | SSW 14 | SSW 14 | — | — | W 20 | SW 18 | SW 18 | WSW 18 | SW 16 | SE 5 | SW 16 | S 21 | SSW 20 | — | — | — | — | — | — | — | — | — |
| kJ | 3 | 3 | 20 | 19 | — | — | 7 | 13 | 12 | 30 | 42 | 4 | 64 | 9 | 39 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 5 | ESE 5 | — | — | SE 5 | — | — | ESE 4 | — | — | — | — | ESE 5 | E 3 | E 3 | — | — | — | NNE 3 | N 3 | NNE 3 | NNE 3 | NNE 3 | NNE 3 |
| kJ | 18 | 51 | — | — | 5 | — | — | 16 | — | — | — | — | 5 | 7 | 6 | — | — | — | 5 | 5 | 3 | 4 | 4 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 7 | 7 | 7 | 0 | 7 | 0 | 7 |
Best forecast wave conditions in Mornington Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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