Surf Forecasts:
Marengo surf forecast from 18 Sep 2026:
- Best quality surf: Saturday 19 Sep, 10AM (local time) - 11ft (3.5m), 13s period, WSW swell with offshore winds.
- Most powerful swell: Saturday 19 Sep, 10AM (local time) - 11ft (3.5m), 13s period, WSW swell with 4,351 kJ wave energy.
- Next surfable swell (1★+): Saturday 19 Sep, 10AM (local time) - 11ft (3.5m), 13s period with WSW 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 Saturday (Sep 19) at 10AM. The primary swell is predicted to be 3.5m and 13s period with a secondary swell of 1.3m and 11s. Another secondary swell of 1.1m and 14s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Marengo in the next 16 days are 3.5m 13s and forecast to arrive on Saturday (Sep 19) at 10AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Wednesday (Sep 23) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sat 19th Sep) | 11ft (3.5m) 13s |
| Best Surf | 10AM (Sat 19th Sep) | 11ft (3.5m) 13s |
| Most Powerful | 10AM (Sat 19th Sep) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for Marengo over the next 16 days.
Short Range ForecastSome drizzle, heaviest during Sun night. Warm (max 24°C on Sun morning, min 10°C on Sun night). Winds increasing (light winds from the NNW on Sat night, strong winds from the WNW by Sun afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Thu morning, min 9°C on Tue night). Wind will be generally light. | |||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | ||||||||||||||
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 16 | SW 14 | WSW 13 | SW 13 | SW 15 | SW 15 | SW 14 | SW 13 | SW 16 | SW 15 | SW 14 | SW 15 | SSW 16 | SSW 15 | SW 14 | SSW 14 | SW 14 | SSW 14 | SW 14 | SW 13 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1958 | 1374 | 4351 | 732 | 1001 | 1219 | 833 | 1853 | 2881 | 3045 | 2746 | 2736 | 4056 | 2585 | 1285 | 833 | 573 | 264 | 194 | 205 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross | on | on | cross-on | glassy | cross-on | cross-on | cross | cross-off | off |
High Tide | 5:01PM2.08m | 4:19AM1.74m | 5:40PM1.92m | 4:42AM1.62m | 6:30PM1.75m | 5:04AM1.50m | 7:51PM1.62m | 5:31AM1.37m | 9:46PM1.59m | 8:19AM1.25m | 11:02PM1.66m | 10:59AM1.39m | 11:47PM1.74m | |||||||
Low Tide | 10:55PM0.92m | 10:47AM0.34m | 11:27PM1.05m | 11:20AM0.47m | 00:06AM1.19m | 11:58AM0.63m | 1:28AM1.30m | 12:58PM0.80m | 5:11AM1.23m | 3:33PM0.91m | 5:49AM1.08m | 5:11PM0.87m | ||||||||
 |  |  | |  | | |  | | | | | | |  | |  | | | | |
 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:13 | — | — | 6:13 | — | — |
 | 6:16 | — | — | 6:17 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — | — | 6:22 | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 16 | 19 | 19 | 16 | 24 | 21 | 14 | 12 | 11 | 11 | 12 | 11 | 9 | 17 | 17 | 16 | 24 | 21 | 14 |
Feels °C | 16 | 9 | 13 | 14 | 12 | 18 | 15 | 8 | 5 | 5 | 7 | 7 | 6 | 5 | 15 | 14 | 14 | 22 | 19 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 14 | WSW 11 | SW 13 | SW 15 | SW 15 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SW 15 | SSW 16 | SSW 15 | SW 14 | SSW 14 | SW 14 | SSW 14 | SW 12 | SW 13 |
| kJ | 1958 | 1374 | 403 | 732 | 1001 | 1219 | 833 | 1048 | 2881 | 3045 | 2746 | 2736 | 4056 | 2585 | 1285 | 833 | 573 | 264 | 157 | 205 |
Swell 2 Height (m) Direction Period (s) | — | S 15 | SW 14 | — | S 16 | S 15 | ENE 5 | — | — | — | — | S 16 | SSE 15 | S 15 | E 5 | ESE 5 | ESE 5 | SW 13 | SW 14 | SSW 12 |
| kJ | — | 4 | 478 | — | 5 | 18 | 2 | — | — | — | — | 46 | 78 | 40 | 17 | 8 | 5 | 178 | 194 | 56 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | NE 4 | — | — | — | — | — | — | — | — | — | — | ESE 4 | E 7 | ENE 4 |
| kJ | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 3 | 10 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | WSW 13 | W 3 | — | N 3 | NW 3 | SW 13 | SW 12 | — | — | — | — | E 4 | — | — | E 5 | — | ENE 7 | NE 4 |
| kJ | — | — | 4351 | 3 | — | 4 | 5 | 1853 | 2495 | — | — | — | — | 14 | — | — | 12 | — | 10 | 5 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 35 | 0 | 0 | 0 | 41 | 37 | 59 | 59 | 241 | 59 | 18 | 229 | 18 | 0 | 22 | 18 | 20 | 18 | 0 |
Best forecast wave conditions in Cape Otway | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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