Surf Forecasts:
Marengo surf forecast from 12 Jul 2026:
- Best quality surf: Monday 13 Jul, 7PM (local time) - 23ft (7.0m), 15s period, WSW swell with offshore winds.
- Most powerful swell: Monday 13 Jul, 7PM (local time) - 23ft (7.0m), 15s period, WSW swell with 23,363 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 7PM (local time) - 23ft (7.0m), 15s 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 Monday (Jul 13) at 7PM. The primary swell is predicted to be 7.0m and 15s period with a secondary swell of 3.5m and 16s. Another secondary swell of 0.2m and 15s 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 7.0m 15s and forecast to arrive on Monday (Jul 13) at 7PM. 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 Monday (Jul 13) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Mon 13th Jul) | 23ft (7.0m) 15s |
| Best Surf | 7PM (Mon 13th Jul) | 23ft (7.0m) 15s |
| Most Powerful | 7PM (Mon 13th Jul) | 23ft (7.0m) 15s |
Table - best surf conditions forecast for Marengo over the next 16 days.
Alright, let’s get into it. Things are looking big and powerful right now, but we’ve got to be smart about it.
First up, we’ve got Marengo, a reef and point set-up over here. It’s a beginner-friendly spot normally, but what’s coming is anything but beginner. The water’s sitting at about 59°, which is pretty much bang on average for this time of year, so nothing unusual there.
Sunday morning the 12th is already showing a massive 20ft swell from the WSW. That’s a huge amount of water moving, with the combined swell energy hitting a massive 11684. The wind is a cross-off at 22 mph, so it’s clean but those waves are going to be heaving. At 20ft and with a period of 12 seconds, this is expert-only territory. Stay safe.
Sunday afternoon the 12th drops to 8ft from the SW, but the wind gets strong offshore at 25 mph. That’s clean but hard to paddle into. The energy drops to 1743, still moderate to strong.
Monday the 13th has 10ft to 12ft SW swell, with 16-second periods – that’s proper groundswell with long lulls between sets. The reef and point will handle that nicely, but the wind is still fresh to strong, making it a tough paddle.
The standout is Tuesday the 14th. Get on it. Morning is showing 16ft from the WSW, with a 15-second period, and the combined energy is a massive 16516. The wind is a clean offshore 16 mph from the WSW. That’s exceptional conditions for expert surfers. The afternoon stays clean with 15ft and similar wind. This is the best on offer, no question.
Wednesday the 15th drops to 7ft, still with long 15-second periods and gentle offshore wind at 9 mph. Clean but the energy is down to 2027. Thursday the 16th and Friday the 17th are both showing 6ft to 7ft SW swell, with glassy conditions on Friday morning and afternoon. That’s clean, but the swell is dropping.
By Saturday the 18th, it’s small – 3ft to 4ft – and the wind goes cross-shore. Energy is under 500. Then we hit a big gap. Sunday the 19th through to Thursday the 24th is mostly small, choppy, or onshore. For about 6 days, there’s nothing really worth paddling out for. The swell is tiny, the wind is messy, and the energy is weak.
Then we get a nice little pulse around Friday the 25th. Morning shows 5ft, 16-second period, glassy wind. Clean, with energy at 1427. That’s a solid session for experienced surfers. Saturday the 26th and Sunday the 27th also show 5ft to 6ft SW swell, with glassy or very light cross-off winds. The energy is moderate, but the quality is there. These are good, clean, long-period waves.
If you’re an experienced surfer, Tuesday the 14th is the absolute standout. For the rest of the run, Friday the 25th and the weekend of the 26th-27th look promising but less certain, being further out.
Rusty.
Short Range ForecastHeavy rain (total 21mm), heaviest during Sun night. Very mild (max 13°C on Mon morning, min 10°C on Sun morning). Winds decreasing (strong winds from the WNW on Mon afternoon, light winds from the WNW by Tue night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Thu morning, min 9°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 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) | WSW 12 | SW 13 | SW 14 | SW 16 | SW 16 | SW 15 | WSW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | WSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10406 | 1723 | 2558 | 4414 | 5507 | 19014 | 12244 | 9822 | 2686 | 2027 | 1480 | 1289 | 1542 | 1832 | 1715 | 1919 | 1418 | 821 | 458 | 336 | 149 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | glassy | cross-off | cross-off | cross | cross |
High Tide | 10:59PM2.08m | 9:00AM1.52m | 11:59PM2.20m | 10:38AM1.55m | 00:50AM2.30m | 11:59AM1.64m | 1:35AM2.38m | 1:06PM1.76m | 2:16AM2.42m | 2:07PM1.87m | 2:55AM2.40m | 3:03PM1.95m | 3:31AM2.34m | ||||||||
Low Tide | 3:04PM0.25m | 5:18AM1.33m | 4:20PM0.24m | 6:21AM1.22m | 5:30PM0.21m | 7:10AM1.07m | 6:31PM0.20m | 7:54AM0.89m | 7:26PM0.21m | 8:35AM0.71m | 8:17PM0.26m | 9:14AM0.54m | 9:05PM0.36m | ||||||||
 | |  |  | | | |  |  | | | | | |  | | | | | | | |
 | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — |
 | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — |
mm | 3 | 2 | 11 | — | 2 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 13 | 13 | 12 | 13 | 13 | 11 | 14 | 13 | 13 | 15 | 15 | 13 | 13 | 12 | 11 | 13 | 14 | 11 |
Feels °C | 4 | 4 | 5 | 6 | 5 | 6 | 6 | 7 | 7 | 11 | 10 | 10 | 12 | 12 | 11 | 12 | 11 | 9 | 10 | 12 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | SW 13 | SW 14 | SW 16 | SW 16 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | WSW 13 |
| kJ | 1278 | 1723 | 2558 | 4414 | 5507 | 6068 | 4272 | 3411 | 2686 | 2027 | 1480 | 1289 | 1542 | 1832 | 1715 | 1919 | 1418 | 821 | 458 | 336 | 149 |
Swell 2 Height (m) Direction Period (s) | — | SW 23 | — | — | — | — | — | — | S 15 | — | S 14 | W 24 | — | S 11 | S 14 | — | — | — | S 18 | SSW 16 | SSW 11 |
| kJ | — | 20 | — | — | — | — | — | — | 4 | — | 4 | 11 | — | 9 | 4 | — | — | — | 6 | 52 | 42 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 16 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 47 |
Wind waves Height (m) Direction Period (s) | WSW 12 | W 3 | WNW 3 | NW 3 | WNW 4 | SW 15 | WSW 15 | SW 15 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 10406 | 5 | 4 | 4 | 19 | 19014 | 12244 | 9822 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 570 | 787 | 2 | 390 | 1021 | 38 | 0 | 59 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 20 |
Best forecast wave conditions in Cape Otway | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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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