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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 3 pm Monday 11 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
16.1° 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 10PM is: 1.4m 13s primary swell from a Southwest direction and 0.1m 26s secondary swell from a South direction (forecast issued at 03:00pm May 11). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 3.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | - | - |
| Afternoon (11 May) | 5ft (1.5m) | 13s |
| Evening (11 May) | 4.5ft (1.4m) | 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. Very mild (max 18°C on Tue afternoon, min 12°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Mon 11 | Tuesday 12 | Wednesday 13 | Thu 14 | |||||||||||||||||||||
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 | 7 AM | 10 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 | SW 20 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | |
821 | 669 | 659 | 649 | 581 | 512 | 437 | 398 | 464 | 583 | 460 | 454 | 728 | 619 | 542 | 404 | 387 | 361 | 345 | 246 | 242 | 202 | 161 | 120 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross-on | cross | glassy | cross-off | cross-off | cross-off | off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | |
High Tide | 6:08PM1.34m | 6:10AM1.18m | 6:50PM1.30m | 7:20AM1.18m | 7:38PM1.26m | 8:36AM1.22m | ||||||||||||||||||
Low Tide | 11:28AM0.44m | 00:20AM0.63m | 12:18PM0.54m | 1:10AM0.60m | 1:18PM0.64m | 2:05AM0.55m | ||||||||||||||||||
 | |  | | | | | | | | | | | |  | | | | | | | | | | |
 | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — |
 | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:21 | — | — | — | — | — | 5:20 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 14 | 15 | 15 | 14 | 13 | 12 | 12 | 14 | 16 | 18 | 15 | 13 | 12 | 12 | 13 | 15 | 17 | 18 | 15 | 13 | 13 | 14 | 15 |
13 | 11 | 13 | 14 | 12 | 11 | 10 | 10 | 13 | 14 | 17 | 12 | 10 | 9 | 10 | 12 | 14 | 15 | 15 | 11 | 11 | 12 | 13 | 13 | |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 13 | SW 14 | SW 14 | SW 13 | SW 13 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 |
 kJ | 821 | 669 | 659 | 649 | 581 | 512 | 437 | 398 | 457 | 457 | 451 | 315 | 728 | 619 | 542 | 404 | 387 | 361 | 345 | 246 | 242 | 202 | 161 | 120 |
Swell 2 Height (m) Direction Period (s) | — | E 12 | E 14 | S 26 | SE 4 | SE 4 | SW 22 | SW 21 | SW 20 | SW 19 | SW 18 | SW 16 | SW 16 | SSW 16 | ESE 5 | SE 5 | SE 5 | SE 5 | SE 5 | — | SE 5 | SE 5 | SE 5 | SE 5 |
| kJ | — | 3 | 4 | 14 | 3 | 7 | 239 | 358 | 464 | 583 | 460 | 454 | 264 | 48 | 37 | 28 | 23 | 18 | 9 | — | 27 | 20 | 14 | 14 |
Swell 3 Height (m) Direction Period (s) | — | — | — | E 13 | SW 26 | SW 24 | SE 5 | SE 5 | SE 5 | S 18 | SSW 18 | SSW 17 | SSW 15 | E 12 | E 12 | E 12 | SSW 14 | SSW 14 | — | — | W 20 | SW 18 | WSW 18 | WSW 18 |
| kJ | — | — | — | 4 | 25 | 88 | 7 | 8 | 8 | 174 | 106 | 93 | 45 | 3 | 3 | 3 | 20 | 19 | — | — | 7 | 13 | 31 | 30 |
Wind waves Height (m) Direction Period (s) | — | — | ESE 4 | SE 4 | ESE 4 | ESE 4 | ESE 5 | ESE 5 | — | SE 4 | SE 4 | SE 5 | ESE 5 | ESE 6 | ENE 2 | ESE 5 | — | — | ESE 5 | SE 5 | — | NE 3 | — | — |
| kJ | — | — | 1 | 4 | 10 | 13 | 15 | 15 | — | 7 | 7 | 24 | 51 | 53 | 1 | 51 | — | — | 30 | 27 | — | 2 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 4 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Mornington Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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