Surf Forecasts:
How big are the waves at Portsea Back Beach today (20 Oct):
- Morning surf: Morning surf (20 Oct, local time) - 3.5ft (1.1m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (20 Oct, local time) - 3.5ft (1.1m), 13s period with SW swell.
- Evening surf: Evening surf (20 Oct, local time) - 3.5ft (1.1m), 13s period with SW swell.
The current surf forecast for Portsea Back Beach at 8AM is: 1.1m 14s primary swell from a Southwest direction (forecast issued at 04:00am October 20). An open ocean swell of 0.2m 4s is not directed at the surf break, a second open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (AEDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Oct) | 3.5ft (1.1m) | 14s |
| Afternoon (20 Oct) | 3.5ft (1.1m) | 13s |
| Evening (20 Oct) | 3.5ft (1.1m) | 13s |
Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Thu afternoon, min 14°C on Tue night). Winds increasing (calm on Wed night, strong winds from the N by Thu night). | ||||||||||||||||||||||||
Tuesday 20 | Wednesday 21 | Thursday 22 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 13 | SW 11 | SW 13 | SW 13 | SW 17 | SW 17 | SW 15 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 614 | 606 | 500 | 471 | 418 | 406 | 376 | 353 | 347 | 292 | 326 | 155 | 398 | 398 | 1282 | 1774 | 1785 | 2157 | 2748 | 2621 | 2299 | 2214 | 1909 | 1540 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | off | cross-off | cross-off | cross-off | off | off |
High Tide | 6:42AM1.31m | 6:09PM1.12m | 7:24AM1.23m | 7:03PM1.07m | 8:12AM1.17m | 8:15PM1.04m | ||||||||||||||||||
Low Tide | 11:58PM0.30m | 12:42PM0.64m | 00:37AM0.38m | 1:27PM0.65m | 1:25AM0.46m | 2:22PM0.64m | ||||||||||||||||||
 | |  |  | | | | | |  | |  | | |  | | | | | | | | | | |
 | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:43 | — | — | — | — | — | — | — | 7:44 | — | — | — | — | — | — | — | 7:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 20 | 19 | 21 | 24 | 25 | 26 | 21 | 16 | 14 | 14 | 16 | 18 | 16 | 17 | 17 | 17 | 17 | 18 | 24 | 28 | 29 | 28 | 24 |
Feels °C | 16 | 13 | 12 | 16 | 18 | 20 | 23 | 20 | 14 | 13 | 14 | 16 | 15 | 13 | 16 | 16 | 18 | 16 | 15 | 20 | 24 | 25 | 24 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 13 | SW 11 | SW 13 | SW 13 | SW 17 | SW 17 | SW 15 | SW 16 | SW 17 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 |
| kJ | 614 | 606 | 500 | 471 | 418 | 406 | 376 | 353 | 347 | 292 | 326 | 153 | 398 | 398 | 1282 | 1774 | 1785 | 2157 | 2748 | 2621 | 2299 | 2214 | 1909 | 1540 |
Swell 2 Height (m) Direction Period (s) | — | ESE 4 | ESE 4 | — | ESE 8 | SW 24 | SW 24 | WNW 3 | SW 22 | SW 21 | SW 21 | SW 14 | SW 19 | SW 19 | S 17 | SW 22 | SSW 17 | SSW 17 | WSW 18 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SW 21 |
| kJ | — | 1 | 2 | — | 6 | 22 | 22 | 1 | 73 | 72 | 72 | 155 | 133 | 229 | 52 | 73 | 97 | 93 | 1172 | 96 | 89 | 82 | 84 | 355 |
Swell 3 Height (m) Direction Period (s) | — | S 16 | — | — | — | SW 24 | SW 24 | SW 24 | S 22 | SE 15 | S 15 | SW 20 | E 8 | SW 16 | — | WSW 22 | — | — | SSW 16 | — | — | — | — | SSW 15 |
| kJ | — | 19 | — | — | — | 22 | 22 | 22 | 9 | 9 | 4 | 98 | 5 | 40 | — | 45 | — | — | 91 | — | — | — | — | 93 |
Wind waves Height (m) Direction Period (s) | NE 3 | N 3 | NNE 4 | NNE 4 | N 4 | N 3 | NW 3 | N 3 | — | SW 3 | SW 3 | — | — | SSE 3 | — | — | — | — | — | — | — | — | — | ENE 4 |
| kJ | 3 | 4 | 14 | 15 | 7 | 6 | 5 | 1 | — | 2 | 3 | — | — | 3 | — | — | — | — | — | — | — | — | — | 16 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 17 | 7 | 7 | 34 | 17 | 0 | 34 | 31 | 17 | 17 | 25 | 44 | 44 | 4 | 43 | 0 | 0 | 0 | 7 | 3 | 7 | 0 | 0 |
Best forecast wave conditions in Mornington Peninsula | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
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