Surf Forecasts:
Marengo surf forecast from 28 Aug 2026:
- Best quality surf: Thursday 3 Sep, 10AM (local time) - 15ft (4.5m), 14s period, WSW swell with offshore winds.
- Most powerful swell: Saturday 5 Sep, 4AM (local time) - 15ft (4.5m), 15s period, WSW swell with 9,599 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 10AM (local time) - 4.5ft (1.3m), 14s 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 Saturday (Aug 29) at 10AM. The primary swell is predicted to be 1.3m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Marengo in the next 16 days are 4.5m 15s and forecast to arrive on Saturday (Sep 05) at 4AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Sep 01) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Sat 29th Aug) | 4.5ft (1.3m) 14s |
| Best Surf | 10AM (Thu 3rd Sep) | 15ft (4.5m) 14s |
| Most Powerful | 4AM (Sat 5th Sep) | 15ft (4.5m) 15s |
Table - best surf conditions forecast for Marengo over the next 16 days.
The Lowdown
Alright, let’s talk Marengo in feet and miles an hour. This is a reef and point break, fairly exposed to the south-west, and it breaks pretty consistently. Water temp is 57°F, right where it should be for late summer.
We’re looking at a solid run beginning this Saturday morning with a 4-foot south-west groundswell (736 combined energy) and a light 9 mph offshore wind – clean, glassy, good for everyone. That afternoon the swell jumps to 8 feet (3208 energy), still offshore, but that’s expert territory only.
Sunday holds 6-foot waves, offshore winds in the morning, and Monday keeps things around 6 to 6 feet with light breezes. The absolute standout is Wednesday, September 2 – a massive 10 to 12-foot south-west groundswell, moderate offshore wind, energy over 5216. That’s a big-wave day, experts only.
Thursday, September 3, tops it with 15 feet in the morning (9264 energy) and offshore wind – enormous, raw, and only for the brave. It settles a bit that afternoon.
The second week gets rougher. Winds turn cross-offshore or side-shore, with stronger breezes from the north-west and south-west, and more rain. Swell hangs around 5 to 8 feet for a few days but it’s less clean. The highlight there is Wednesday, September 9: an 8-foot south-west groundswell with a 18-second period and a gentle offshore, delivering 4162 energy. That’s a day for the point.
September 12 brings a 10-foot swell but with cross-offshore wind – powerful but messy. Crowds show up here sometimes, so don’t expect to have it to yourself on the good days. The first week is where it’s at.
Rusty
Short Range ForecastMostly dry. Very mild (max 13°C on Sat morning, min 8°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Warm (max 20°C on Tue afternoon, min 10°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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 14 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 14 | SW 16 | SW 16 | SW 15 | SW 14 | WSW 15 | WSW 15 | SW 15 | WSW 14 | SW 14 | SW 14 | SW 13 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 736 | 2546 | 743 | 1196 | 1330 | 1349 | 1325 | 1179 | 1953 | 1248 | 777 | 581 | 4096 | 4585 | 1881 | 7304 | 1902 | 1304 | 814 | 1799 | 2093 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:34PM1.85m | 1:54AM2.10m | 2:10PM2.02m | 2:18AM2.10m | 2:45PM2.16m | 2:42AM2.08m | 3:20PM2.25m | 3:05AM2.04m | 3:56PM2.28m | 3:30AM1.99m | 4:34PM2.25m | 3:56AM1.93m | 5:16PM2.15m | ||||||||
Low Tide | 7:39PM0.57m | 8:08AM0.57m | 8:14PM0.56m | 8:31AM0.41m | 8:49PM0.57m | 8:57AM0.27m | 9:22PM0.62m | 9:24AM0.14m | 9:55PM0.70m | 9:54AM0.07m | 10:28PM0.82m | 10:27AM0.05m | 11:03PM0.95m | ||||||||
 | |  |  | | | | |  | | |  | | |  |  | | | |  | | |
 | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:43 | — | — |
 | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 2 | 1 | — | — | 3 | 5 |
Temp °C | 13 | 12 | 10 | 12 | 11 | 9 | 13 | 13 | 12 | 19 | 20 | 16 | 14 | 15 | 13 | 14 | 13 | 13 | 18 | 13 | 15 |
Feels °C | 9 | 8 | 7 | 8 | 7 | 6 | 10 | 11 | 7 | 15 | 16 | 11 | 8 | 10 | 8 | 10 | 10 | 9 | 14 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 14 | SW 16 | SW 16 | SW 15 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 15 | SW 15 |
| kJ | 736 | 641 | 743 | 1196 | 1330 | 1349 | 1325 | 1179 | 1953 | 1248 | 777 | 581 | 1120 | 1399 | 1881 | 1956 | 1902 | 1304 | 814 | 1799 | 2093 |
Swell 2 Height (m) Direction Period (s) | — | SW 23 | WSW 13 | SW 20 | SW 20 | S 14 | SW 20 | SW 18 | — | — | NNE 4 | SW 17 | — | — | — | S 15 | — | — | SW 16 | — | S 16 |
| kJ | — | 21 | 116 | 136 | 61 | 15 | 373 | 616 | — | — | 7 | 238 | — | — | — | 4 | — | — | 574 | — | 19 |
Swell 3 Height (m) Direction Period (s) | — | E 9 | SW 21 | S 15 | S 14 | — | — | S 14 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 2 | 72 | 18 | 16 | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WSW 14 | — | — | — | — | — | — | — | N 4 | NNW 3 | NW 2 | WSW 15 | WSW 15 | — | WSW 14 | — | — | NNW 4 | NNW 3 | NW 3 |
| kJ | — | 2546 | — | — | — | — | — | — | — | 17 | 1 | 1 | 4096 | 4585 | — | 7304 | — | — | 8 | 5 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 59 | 0 | 0 | 0 | 0 | 20 | 20 | 35 | 0 | 0 | 21 | 0 | 0 | 20 | 21 | 60 | 186 |
Best forecast wave conditions in Cape Otway | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest