Surf Forecasts:
How big are the waves at Portsea Back Beach today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 3.5ft (1.0m), 16s period with SW swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 2.5ft (0.8m), 15s period with SW swell.
- Evening surf: Evening surf (20 Jul, local time) - 3ft (0.9m), 15s period with WSW swell.
The current surf forecast for Portsea Back Beach at 4PM is: 0.7m 15s primary swell from a Southwest direction and 0.7m 12s secondary swell from a West-southwest direction (forecast issued at 09:00am July 20). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 3.5ft (1.0m) | 16s |
| Afternoon (20 Jul) | 2.5ft (0.8m) | 15s |
| Evening (20 Jul) | 3ft (0.9m) | 15s |
Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Wed afternoon. Very mild (max 15°C on Mon afternoon, min 7°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | WSW 15 | WSW 15 | SW 15 | SW 15 | WSW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 12 | SW 12 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 508 | 502 | 489 | 226 | 372 | 372 | 418 | 574 | 785 | 777 | 721 | 711 | 649 | 486 | 449 | 379 | 373 | 421 | 367 | 527 | 1150 | 1438 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | on |
High Tide | 4:10PM1.57m | 4:39AM1.44m | 4:46PM1.54m | 5:28AM1.41m | 5:19PM1.50m | |||||||||||||||||
Low Tide | 9:53AM0.34m | 10:29PM0.33m | 10:35AM0.45m | 11:10PM0.31m | 11:15AM0.57m | |||||||||||||||||
 |  |  | |  | | | | | | | | | | | | | |  |  |  | | |
 | 7:31 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — |
 | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:23 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 |
Temp °C | 11 | 11 | 12 | 15 | 13 | 12 | 12 | 11 | 11 | 11 | 12 | 15 | 14 | 12 | 12 | 12 | 12 | 12 | 14 | 10 | 11 | 10 |
Feels °C | 6 | 6 | 8 | 12 | 8 | 8 | 8 | 7 | 7 | 7 | 8 | 12 | 10 | 7 | 7 | 6 | 7 | 6 | 8 | 4 | 6 | 3 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | WSW 15 | WSW 15 | SW 15 | SW 15 | WSW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 12 | — |
| kJ | 508 | 502 | 489 | 226 | 372 | 372 | 418 | 574 | 785 | 777 | 721 | 711 | 649 | 486 | 449 | 379 | 373 | 421 | 367 | 527 | 330 | — |
Swell 2 Height (m) Direction Period (s) | SSW 10 | S 16 | S 16 | WSW 12 | WSW 9 | S 15 | WSW 18 | S 14 | SSW 14 | SSW 14 | — | — | — | E 11 | E 11 | E 10 | E 10 | E 10 | — | — | E 10 | — |
| kJ | 20 | 20 | 5 | 125 | 88 | 4 | 32 | 16 | 37 | 36 | — | — | — | 2 | 2 | 2 | 2 | 2 | — | — | 2 | — |
Swell 3 Height (m) Direction Period (s) | S 16 | SSW 16 | E 11 | S 10 | S 15 | E 11 | E 11 | S 9 | — | — | — | — | — | — | — | — | — | N 5 | S 15 | — | — | — |
| kJ | 20 | 25 | 2 | 7 | 4 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | 1 | 4 | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 3 | NW 3 | NNW 3 | NNW 3 | NW 3 | NW 3 | NW 3 | NNW 3 | NNW 3 | N 3 | N 3 | N 3 | NNW 3 | NNW 3 | NNW 3 | NNW 3 | NW 4 | WNW 4 | W 4 | WSW 5 | SW 12 | SW 12 |
| kJ | 2 | 2 | 2 | 4 | 2 | 6 | 2 | 1 | 7 | 2 | 3 | 6 | 4 | 2 | 5 | 10 | 15 | 25 | 48 | 71 | 1150 | 1438 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 7 | 7 | 3 | 7 | 13 | 3 | 0 | 0 | 0 | 3 | 3 | 0 | 13 | 17 | 17 | 17 | 17 | 25 | 25 | 27 | 45 | 31 |
Best forecast wave conditions in Mornington Peninsula | ||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||
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