Surf Forecasts:
How big are the waves at Portsea Back Beach today (23 Aug):
- Morning surf: Morning surf (23 Aug, local time) - 8ft (2.4m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (23 Aug, local time) - 7ft (2.2m), 15s period with SW swell.
- Evening surf: Evening surf (23 Aug, local time) - 7ft (2.1m), 16s period with SW swell.
The current surf forecast for Portsea Back Beach at 2AM is: 3.0m 14s primary swell from a Southwest direction and 0.4m 15s secondary swell from a South-southwest direction (forecast issued at 09:00pm August 22). The wind direction is predicted to be cross-onshore.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 8ft (2.4m) | 14s |
| Afternoon (23 Aug) | 7ft (2.2m) | 15s |
| Evening (23 Aug) | 7ft (2.1m) | 16s |
Table - waves today at Portsea Back Beach. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Tue morning. Very mild (max 16°C on Mon afternoon, min 8°C on Sat night). Winds increasing (light winds from the NNE on Sun afternoon, fresh winds from the NNE by Sun night). | ||||||||||||||||||
Sat 22 | Sunday 23 | Monday 24 | ||||||||||||||||
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 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
Wave Graph  | ||||||||||||||||||
 kJ | 4302 | 3813 | 3419 | 2747 | 2670 | 1919 | 1639 | 2295 | 2354 | 2035 | 1832 | 1374 | 1155 | 957 | 943 | 839 | 744 | 802 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 5:39PM1.33m | 7:08AM1.26m | 6:12PM1.26m | 7:59AM1.21m | 6:56PM1.18m | |||||||||||||
Low Tide | 00:23AM0.32m | 12:37PM0.79m | 1:04AM0.36m | 1:27PM0.83m | ||||||||||||||
 |  | | |  | | | | | | | |  | |  | |  |  | |
 | — | — | — | 6:56 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:51 | — | — | — | — | — | — | — | 5:52 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 12 | 11 | 10 | 9 | 8 | 8 | 11 | 15 | 15 | 13 | 13 | 13 | 12 | 12 | 15 | 16 | 15 | 15 |
Feels °C | 6 | 8 | 7 | 6 | 5 | 5 | 8 | 13 | 12 | 9 | 9 | 8 | 5 | 6 | 10 | 11 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
| kJ | 4302 | 3813 | 3419 | 2747 | 2670 | 1919 | 1639 | 2295 | 2354 | 2035 | 1832 | 1374 | 1155 | 957 | 943 | 839 | 744 | 802 |
Swell 2 Height (m) Direction Period (s) | SW 21 | SW 21 | SSW 15 | SW 19 | SSW 14 | SW 18 | SW 18 | SW 16 | S 16 | S 16 | S 15 | S 14 | SSW 13 | SSW 14 | SW 20 | SW 20 | SW 20 | WSW 19 |
| kJ | 162 | 117 | 71 | 446 | 63 | 777 | 588 | 596 | 126 | 124 | 118 | 106 | 59 | 38 | 16 | 15 | 15 | 37 |
Swell 3 Height (m) Direction Period (s) | SW 21 | — | — | SSW 14 | — | SSW 18 | SSW 18 | — | — | — | — | — | — | — | — | — | — | WSW 19 |
| kJ | 117 | — | — | 63 | — | 61 | 61 | — | — | — | — | — | — | — | — | — | — | 36 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | N 3 | N 3 | N 4 | N 3 | N 3 | N 3 | N 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 5 | 11 | 12 | 6 | 5 | 5 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 25 | 17 | 17 | 17 | 7 | 0 | 0 | 0 | 0 | 0 | 7 | 7 | 17 | 17 | 7 | 7 | 7 | 0 |
Best forecast wave conditions in Mornington Peninsula | ||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||
Header Global | ||||||||||||||||||
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