Surf Forecasts:
Marengo surf forecast from 8 Aug 2026:
- Best quality surf: Thursday 13 Aug, 4PM (local time) - 18ft (5.5m), 16s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 12 Aug, 4PM (local time) - 16ft (5.0m), 17s period, WSW swell with 14,134 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 10AM (local time) - 5.5ft (1.7m), 19s period with SW swell.
Best Forecast Surf Conditions for Marengo this week:
The surf forecast for Marengo over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 10) at 10AM. The primary swell is predicted to be 1.7m and 19s period with a secondary swell of 1.0m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Marengo in the next 16 days are 5.0m 17s and forecast to arrive on Wednesday (Aug 12) at 4PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 6s period and expected on Sunday (Aug 09) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Mon 10th Aug) | 5.5ft (1.7m) 19s |
| Best Surf | 4PM (Thu 13th Aug) | 18ft (5.5m) 16s |
| Most Powerful | 4PM (Wed 12th Aug) | 16ft (5.0m) 17s |
Table - best surf conditions forecast for Marengo over the next 16 days.
Short Range ForecastHeavy rain (total 27mm), heaviest during Sun night. Very mild (max 14°C on Sat afternoon, min 9°C on Sun night). Winds increasing (light winds from the NE on Sun night, fresh winds from the W by Mon night). | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Tue night. Very mild (max 14°C on Thu morning, min 9°C on Wed morning). Winds decreasing (strong winds from the WSW on Wed afternoon, moderate winds from the WNW by Thu night). | |||||||||||||||||||
Sat 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 15 | SW 14 | WSW 14 | SW 16 | SW 20 | SW 19 | SW 17 | SW 16 | WSW 9 | SW 14 | SW 16 | WSW 16 | WSW 17 | SW 16 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 763 | 536 | 328 | 219 | 1030 | 1988 | 1579 | 989 | 656 | 581 | 1180 | 9141 | 14134 | 14066 | 13527 | 13886 | 3806 | 4412 | 3288 | 2454 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | off | cross-off |
High Tide | 7:49PM1.89m | 5:59AM1.68m | 9:15PM1.87m | 6:52AM1.57m | 10:40PM1.93m | 8:40AM1.47m | 11:47PM2.03m | 10:50AM1.52m | 00:38AM2.14m | 12:14PM1.69m | 1:20AM2.23m | 1:17PM1.88m | 1:57AM2.28m | |||||||
Low Tide | 1:06AM1.29m | 1:16PM0.26m | 2:53AM1.40m | 2:32PM0.36m | 5:03AM1.33m | 4:09PM0.42m | 6:12AM1.17m | 5:31PM0.42m | 6:58AM0.96m | 6:35PM0.39m | 7:37AM0.74m | 7:29PM0.38m | ||||||||
 |  |  | |  | |  | |  | | | | | | | |  |  | | | |
 | — | — | 7:20 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — |
 | 5:40 | — | — | 5:42 | — | — | 5:43 | — | — | 5:44 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | 1 | 4 | 3 | 12 | 1 | 4 | 2 | — | — | 3 | 1 | 2 | 1 | 1 | — | — | — | — | 1 |
Temp °C | 14 | 13 | 11 | 12 | 12 | 12 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 14 | 14 | 12 | 13 | 12 | 11 |
Feels °C | 10 | 8 | 5 | 7 | 9 | 8 | 8 | 6 | 7 | 7 | 5 | 3 | 2 | 6 | 9 | 9 | 8 | 7 | 7 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | WSW 14 | SW 13 | SW 20 | SW 19 | SW 17 | SW 16 | SW 15 | SW 14 | SW 16 | SW 16 | SW 15 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 |
| kJ | 763 | 536 | 328 | 180 | 1030 | 1988 | 1579 | 989 | 606 | 581 | 1180 | 2087 | 1882 | 3879 | 3981 | 4136 | 3806 | 4412 | 3288 | 2454 |
Swell 2 Height (m) Direction Period (s) | — | — | SW 18 | SW 16 | SW 14 | ESE 6 | ESE 7 | ESE 9 | SW 8 | SW 18 | — | — | SW 18 | SW 16 | S 15 | — | — | — | S 15 | — |
| kJ | — | — | 51 | 219 | 293 | 69 | 56 | 16 | 162 | 383 | — | — | 872 | 1671 | 17 | — | — | — | 17 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | ESE 6 | — | — | — | SW 20 | S 6 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 13 | — | — | — | 103 | 18 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ENE 4 | ENE 5 | ENE 6 | ENE 6 | — | SSW 4 | SW 8 | WSW 9 | — | N 3 | WSW 16 | WSW 17 | SW 16 | SW 15 | SW 16 | — | — | — | — |
| kJ | — | 11 | 30 | 45 | 21 | — | 14 | 129 | 656 | — | 4 | 9141 | 14134 | 14066 | 13527 | 13886 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 20 | 21 | 18 | 41 | 18 | 0 | 289 | 182 | 21 | 21 | 186 | 37 | 523 | 76 | 37 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Cape Otway | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Marengo surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Marengo Surf forecast
The above surf forecast table for Marengo provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Marengo can be found by selecting the local surf guide option on the grey menu. Our Marengo surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Marengo) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Marengo may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Marengo is 93 km (58 miles) from the city of Geelong West. If you plan a holiday in Cape Otway, look for hotels and other accommodation in Geelong West. Geelong West has rooms for a wide range of budgets as well as car hire and transport links.
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