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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 pm Monday 04 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
17.4° C
(Which is 1.5°C warmer than 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: 2.1m 9s primary swell from a West-southwest direction and 1.2m 13s secondary swell from a Southwest direction, 0.1m 10s secondary swell from a Southeast direction (forecast issued at 09:00pm May 04). The wind direction is predicted to be cross-onshore.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 May) | 7.5ft (2.3m) | 12s |
| Afternoon (05 May) | 7ft (2.1m) | 12s |
| Evening (05 May) | 4.5ft (1.4m) | 14s |
Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 20mm), heaviest during Wed night. Very mild (max 17°C on Wed morning, min 9°C on Wed night). Winds decreasing (strong winds from the WNW on Mon night, light winds from the WSW by Tue afternoon). | ||||||||||||||||||||||||
Mon 4 | Tuesday 5 | Wednesday 6 | Thursday 7 | |||||||||||||||||||||
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 | 1 PM | 4 PM | |
Swell Height Map |   |    |    |    | ||||||||||||||||||||
SW 12 | SW 13 | SW 13 | WSW 9 | SW 13 | SW 12 | SW 12 | SW 13 | SW 16 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 8 | SW 9 | SW 9 | SW 12 | SW 12 | SW 13 | SW 13 | |
295 | 405 | 659 | 631 | 512 | 1643 | 1313 | 1154 | 894 | 765 | 1147 | 1255 | 1255 | 1048 | 696 | 518 | 1831 | 1521 | 1975 | 2621 | 3685 | 3368 | 3759 | 4554 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross-on | cross | cross | cross-off | cross | cross | cross-on | cross-on | on | on | on | on | on | on | |
High Tide | 1:29AM1.38m | 2:41PM1.61m | 2:04AM1.36m | 3:15PM1.60m | 2:38AM1.34m | 3:49PM1.57m | ||||||||||||||||||
Low Tide | 8:06PM0.66m | 7:57AM0.21m | 8:43PM0.65m | 8:31AM0.20m | 9:18PM0.65m | 9:03AM0.22m | ||||||||||||||||||
 |  |  | |  |  |  | | | | | | | | | |  |  | | | |  | | | |
 | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:07 | — | — | — |
 | — | — | — | — | — | — | — | 5:29 | — | — | — | — | — | — | — | 5:28 | — | — | — | — | — | — | — | 5:27 |
— | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 2 | 8 | 1 | 2 | 2 | 2 | 1 | 1 | |
Temp °C | 16 | 15 | 14 | 14 | 13 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 17 | 16 | 14 | 11 | 9 | 10 | 10 | 11 | 11 | 11 |
8 | 7 | 7 | 8 | 8 | 9 | 10 | 11 | 12 | 12 | 11 | 10 | 10 | 9 | 12 | 10 | 8 | 3 | 0 | 1 | 0 | 1 | 1 | 1 | |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 13 | SW 13 | SW 13 | SW 13 | SE 10 | SSW 17 | SW 13 | SW 10 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 20 | SE 11 | SSW 18 | SE 11 | SW 18 | SW 18 | SW 18 | SSW 16 |
 kJ | 295 | 405 | 659 | 473 | 512 | 4 | 184 | 1154 | 391 | 765 | 1147 | 1255 | 1255 | 1048 | 696 | 518 | 134 | 5 | 32 | 4 | 157 | 157 | 112 | 89 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | SE 10 | SE 10 | SE 10 | SE 10 | ESE 10 | SE 10 | SSW 16 | SW 16 | SW 9 | WSW 21 | SW 21 | SW 21 | SW 21 | SW 8 | SW 9 | SW 19 | — | SE 11 | — | SE 11 | SE 10 | — | — |
| kJ | 9 | 4 | 4 | 4 | 4 | 10 | 4 | 330 | 894 | 220 | 45 | 71 | 71 | 71 | 109 | 194 | 131 | — | 5 | — | 4 | 4 | — | — |
Swell 3 Height (m) Direction Period (s) | S 15 | ESE 10 | — | — | — | SW 18 | — | SE 10 | SE 10 | SE 10 | SE 10 | SW 21 | SW 21 | SSW 14 | SW 20 | SW 20 | S 20 | — | — | — | — | — | — | — |
| kJ | 17 | 9 | — | — | — | 12 | — | 4 | 4 | 4 | 4 | 71 | 71 | 66 | 65 | 136 | 8 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 5 | WNW 5 | W 5 | WSW 9 | SW 8 | SW 12 | SW 12 | SW 10 | — | — | NW 2 | NW 3 | NW 4 | WNW 3 | WNW 4 | WNW 4 | SW 13 | SW 8 | SW 9 | SW 9 | SW 12 | SW 12 | SW 13 | SW 13 |
| kJ | 84 | 107 | 154 | 631 | 509 | 1643 | 1313 | 769 | — | — | 1 | 4 | 6 | 8 | 11 | 18 | 1831 | 1521 | 1975 | 2621 | 3685 | 3368 | 3759 | 4554 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 289 | 201 | 66 | 27 | 31 | 31 | 45 | 25 | 17 | 13 | 17 | 17 | 17 | 17 | 25 | 25 | 201 | 201 | 484 | 357 | 486 | 484 | 519 | 544 |
Best forecast wave conditions in Mornington Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
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