Surf Forecasts:
How big are the waves at Portsea Back Beach today (04 Sep):
- Morning surf: Morning surf (04 Sep, local time) - 11ft (3.5m), 16s period with SW swell.
- Afternoon surf: Afternoon surf (04 Sep, local time) - 10ft (3.0m), 16s period with SW swell.
- Evening surf: Evening surf (04 Sep, local time) - 10ft (3.0m), 16s period with SW swell.
The current surf forecast for Portsea Back Beach at 4AM is: 3.5m 15s primary swell from a Southwest direction and 0.7m 16s secondary swell from a South-southwest direction (forecast issued at 09:00pm September 03). The wind direction is predicted to be cross-shore.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Sep) | 11ft (3.5m) | 16s |
| Afternoon (04 Sep) | 10ft (3.0m) | 16s |
| Evening (04 Sep) | 10ft (3.0m) | 16s |
Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 18mm), heaviest on Sat morning. Very mild (max 15°C on Fri afternoon, min 9°C on Thu night). Winds decreasing (strong winds from the WNW on Sat morning, light winds from the SW by Sun morning). | ||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | ||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | WSW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | WSW 15 | SW 14 |
Wave Graph  | ||||||||||||||||||
 kJ | 6494 | 5036 | 5681 | 6068 | 5394 | 4853 | 4777 | 4838 | 4663 | 4189 | 3544 | 3102 | 2851 | 2437 | 2122 | 2422 | 4372 | 3513 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:22AM1.49m | 3:55PM1.44m | 5:09AM1.45m | 4:33PM1.42m | ||||||||||||||
Low Tide | 9:50PM0.13m | 10:13AM0.54m | 10:31PM0.12m | 10:53AM0.62m | ||||||||||||||
 | | | |  | |  | |  |  | | |  |  | |  | |  | |
 | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:01 | — | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 1 | 2 | 5 | 8 | — | 1 | — | — |
Temp °C | 13 | 11 | 10 | 9 | 9 | 10 | 14 | 15 | 14 | 12 | 14 | 14 | 14 | 15 | 15 | 13 | 12 | 12 |
Feels °C | 7 | 6 | 4 | 3 | 3 | 5 | 9 | 10 | 9 | 6 | 7 | 8 | 6 | 6 | 5 | 3 | 4 | 4 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 |
| kJ | 4764 | 5036 | 5681 | 6068 | 5394 | 4853 | 4777 | 4838 | 4663 | 4189 | 3544 | 3102 | 2851 | 2437 | 2122 | 2422 | 1262 | 1018 |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 15 | SSW 16 | — | SSW 17 | SSW 16 | SSW 18 | SSW 17 | SSW 17 | S 18 | SSW 17 | SSW 17 | SSW 15 | SSW 15 | — | — | — |
| kJ | — | — | 225 | 250 | — | 164 | 211 | 243 | 224 | 237 | 162 | 166 | 235 | 263 | 204 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 14 | — | — | — | NW 4 | NW 3 | NW 4 | NW 4 | — | N 3 | N 4 | N 4 | N 5 | NNW 4 | WNW 5 | W 6 | WSW 15 | SW 14 |
| kJ | 6494 | — | — | — | 8 | 9 | 11 | 9 | — | 11 | 23 | 48 | 60 | 42 | 97 | 185 | 4372 | 3513 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 25 | 17 | 25 | 25 | 25 | 25 | 25 | 17 | 17 | 17 | 44 | 34 | 403 | 403 | 513 | 511 | 346 | 346 |
Best forecast wave conditions in Mornington Peninsula | ||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||
Header Global | ||||||||||||||||||
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