Surf Forecasts:
Marengo surf forecast from 12 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 7AM (local time) - 13ft (4.0m), 13s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 15 Sep, 7AM (local time) - 13ft (4.0m), 13s period, SW swell with 5,501 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 10PM (local time) - 3ft (0.9m), 15s 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 Sunday (Sep 13) at 10PM. The primary swell is predicted to be 0.9m and 15s period with a secondary swell of 0.5m and 11s. Another secondary swell of 0.4m and 4s is also forecast. 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 4.0m 13s and forecast to arrive on Tuesday (Sep 15) at 7AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Monday (Sep 14) at 7PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Sun 13th Sep) | 3ft (0.9m) 15s |
| Best Surf | 7AM (Tue 15th Sep) | 13ft (4.0m) 13s |
| Most Powerful | 7AM (Tue 15th Sep) | 13ft (4.0m) 13s |
Table - best surf conditions forecast for Marengo over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Mon night. Warm (max 23°C on Sun morning, min 10°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Tue morning. Very mild (max 11°C on Tue morning, min 7°C on Thu night). Winds decreasing (fresh winds from the SSW on Tue afternoon, light winds from the WSW by Thu afternoon). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
AM | 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 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 13 | SW 8 | SW 14 | SW 14 | SW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SW 15 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1976 | 1456 | 975 | 809 | 674 | 355 | 218 | 173 | 210 | 4117 | 5048 | 5302 | 3487 | 3440 | 2620 | 1621 | 1093 | 1303 | 773 | 1144 | 924 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross | cross | cross-off | cross-off | cross-off | off | off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:20PM2.08m | 1:32AM2.11m | 2:03PM2.25m | 2:04AM2.12m | 2:41PM2.36m | 2:34AM2.10m | 3:17PM2.38m | 3:03AM2.04m | 3:51PM2.34m | 3:30AM1.96m | 4:25PM2.23m | 3:55AM1.85m | 5:01PM2.08m | ||||||||
Low Tide | 7:29PM0.53m | 7:45AM0.36m | 8:10PM0.52m | 8:17AM0.23m | 8:47PM0.54m | 8:47AM0.16m | 9:22PM0.59m | 9:18AM0.14m | 9:54PM0.68m | 9:47AM0.17m | 10:25PM0.79m | 10:17AM0.24m | 10:55PM0.92m | ||||||||
 | |  |  | | | | |  |  | |  | | | |  | |  | | | | |
 | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — |
 | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — |
mm | — | — | — | — | — | — | — | — | 1 | 2 | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 19 | 16 | 23 | 21 | 17 | 15 | 15 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 11 | 8 | 19 | 20 | 15 |
Feels °C | 17 | 18 | 11 | 18 | 17 | 15 | 13 | 10 | 7 | 3 | 3 | 5 | 5 | 6 | 6 | 6 | 8 | 6 | 14 | 16 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 13 | SW 8 | SW 14 | SW 14 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SW 14 | SW 15 | SW 16 | SW 15 |
| kJ | 1976 | 1456 | 975 | 809 | 674 | 355 | 218 | 173 | 101 | 2544 | 2763 | 3066 | 3487 | 3440 | 2620 | 1621 | 1093 | 1303 | 773 | 1144 | 924 |
Swell 2 Height (m) Direction Period (s) | — | S 17 | — | — | ENE 4 | S 11 | SSW 10 | WSW 19 | SW 13 | — | — | — | S 16 | S 15 | — | — | — | — | SW 18 | SW 16 | S 15 |
| kJ | — | 6 | — | — | 1 | 59 | 19 | 36 | 56 | — | — | — | 19 | 5 | — | — | — | — | 465 | 844 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NNE 4 | W 21 | SW 20 | — | SW 18 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 1 | 9 | 15 | — | 79 | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 3 | NNW 3 | NNE 4 | W 3 | WSW 5 | SW 8 | SW 14 | SW 14 | SW 14 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 2 | 3 | 7 | 6 | 11 | 210 | 4117 | 5048 | 5302 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 20 | 20 | 20 | 0 | 0 | 0 | 0 | 534 | 674 | 276 | 351 | 130 | 2 | 0 | 0 | 0 | 20 | 0 | 20 |
Best forecast wave conditions in Cape Otway | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
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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