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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 Friday 29 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
16.0° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Portsea Back Beach today (30 May):
- Morning surf: Morning surf (30 May, local time) - 1.5ft (0.5m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (30 May, local time) - 1.5ft (0.5m), 12s period with SW swell.
- Evening surf: Evening surf (30 May, local time) - 4.5ft (1.4m), 8s period with WSW swell.
The current surf forecast for Portsea Back Beach at 5AM is: 0.6m 13s primary swell from a Southwest direction and 0.8m 4s secondary swell from a West direction (forecast issued at 09:00pm May 29). An open ocean swell of 0.2m 10s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 May) | 1.5ft (0.5m) | 13s |
| Afternoon (30 May) | 1.5ft (0.5m) | 12s |
| Evening (30 May) | 4.5ft (1.4m) | 8s |
Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 8mm), mostly falling on Mon afternoon. Very mild (max 15°C on Sat morning, min 10°C on Sat night). Winds increasing (light winds from the NW on Fri night, near gales from the N by Mon afternoon). | ||||||||||||||||||||||||
Fri 29 | Saturday 30 | Sunday 31 | Monday 1 | |||||||||||||||||||||
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 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | W 8 | WSW 8 | WSW 9 | WSW 10 | SW 10 | WSW 10 | WSW 11 | SW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | |
162 | 144 | 142 | 140 | 108 | 80 | 75 | 73 | 164 | 250 | 549 | 731 | 637 | 947 | 1214 | 1903 | 3246 | 3097 | 2632 | 1801 | 1476 | 1107 | 923 | 699 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | |
High Tide | 9:37PM1.32m | 11:25AM1.42m | 10:26PM1.32m | 12:15PM1.48m | 11:15PM1.32m | 12:58PM1.53m | ||||||||||||||||||
Low Tide | 4:06PM0.85m | 4:25AM0.39m | 5:11PM0.86m | 5:14AM0.35m | 6:08PM0.84m | 5:58AM0.31m | ||||||||||||||||||
 | |  | |  |  |  |  |  | | | | | | | | | | | | | | | | |
 | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:28 | — | — | — |
 | — | — | — | — | — | — | — | 5:09 | — | — | — | — | — | — | — | 5:08 | — | — | — | — | — | — | — | 5:08 |
— | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | 1 | |
Temp °C | 13 | 13 | 12 | 12 | 11 | 13 | 15 | 15 | 13 | 11 | 10 | 10 | 10 | 11 | 12 | 13 | 12 | 11 | 10 | 10 | 10 | 11 | 11 | 13 |
11 | 9 | 8 | 7 | 6 | 7 | 9 | 10 | 6 | 5 | 3 | 3 | 3 | 4 | 4 | 6 | 6 | 5 | 5 | 5 | 5 | 4 | 2 | 3 | |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 7 | SW 7 | SW 12 | SW 12 | SE 10 | SSW 15 | SW 10 | SE 10 | SW 18 | SE 10 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
 kJ | 162 | 144 | 142 | 140 | 108 | 80 | 29 | 43 | 71 | 112 | 4 | 22 | 637 | 4 | 12 | 4 | 2348 | 2256 | 2011 | 1801 | 1476 | 1107 | 923 | 699 |
Swell 2 Height (m) Direction Period (s) | SW 4 | SW 4 | SW 4 | ESE 10 | ESE 10 | SW 6 | SW 12 | SW 12 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | SW 18 | SE 10 | — | — | — | — | SE 10 | S 13 | SE 10 | E 10 | SW 20 |
| kJ | 4 | 6 | 4 | 10 | 10 | 18 | 75 | 73 | 4 | 4 | 4 | 4 | 4 | 12 | 4 | — | — | — | — | 4 | 14 | 4 | 2 | 15 |
Swell 3 Height (m) Direction Period (s) | SE 11 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | SE 10 | SE 10 | SW 17 | SW 17 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 11 | 10 | 20 | 20 | 10 | 4 | 4 | 12 | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 4 | — | NW 3 | W 4 | W 4 | W 4 | WNW 4 | NW 4 | W 8 | WSW 8 | WSW 9 | WSW 10 | NW 4 | WSW 10 | WSW 11 | SW 12 | WSW 12 | WSW 12 | WSW 12 | — | NW 4 | NNW 3 | N 3 | N 4 |
| kJ | 8 | — | 4 | 12 | 18 | 14 | 11 | 15 | 164 | 250 | 549 | 731 | 26 | 947 | 1214 | 1903 | 3246 | 3097 | 2632 | — | 8 | 4 | 11 | 57 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 13 | 7 | 13 | 27 | 27 | 27 | 27 | 25 | 31 | 25 | 25 | 27 | 27 | 25 | 27 | 31 | 31 | 31 | 25 | 25 | 17 | 17 | 44 | 126 |
Best forecast wave conditions in Mornington Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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