Surf Forecasts:
Marengo surf forecast from 22 Jul 2026:
- Best quality surf: Friday 24 Jul, 4AM (local time) - 20ft (6.0m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 24 Jul, 4AM (local time) - 20ft (6.0m), 15s period, SW swell with 16,020 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 4PM (local time) - 8ft (2.5m), 12s 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 Wednesday (Jul 22) at 4PM. The primary swell is predicted to be 2.5m and 12s period with a secondary swell of 1.1m and 13s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Marengo in the next 16 days are 6.0m 15s and forecast to arrive on Friday (Jul 24) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Monday (Jul 27) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Wed 22nd Jul) | 8ft (2.5m) 12s |
| Best Surf | 4AM (Fri 24th Jul) | 20ft (6.0m) 15s |
| Most Powerful | 4AM (Fri 24th Jul) | 20ft (6.0m) 15s |
Table - best surf conditions forecast for Marengo over the next 16 days.
The Lowdown
Righto, surf’s up. Let’s have a look at what’s cookin’ for Marengo.
It’s a quiet start, but hold onto your board – this week is gonna be a ripper. We’ve got a solid run of southwest groundswell marching in, and the wind is playing ball for the most part. The water temp is sittin’ around 59°, which is a touch warmer than usual for this time of year, so you might get away with a slightly thinner steamer.
Things kick off proper on Wednesday, July 22nd. The morning is a bit messy with a cross-off breeze and a small 3ft swell, but it’s the afternoon that gets the blood pumpin’. The swell jumps to 8ft, the wind swings offshore, and we’ve got some serious energy in the water. This is a solid, clean option for anyone who knows what they’re doing.
The real standout, though, is Thursday, July 23rd through to Friday, July 24th. This is the window you’ve been waiting for. We’re lookin’ at a pumpin’ 15ft to 16ft of SW groundswell, with a long, juicy 14 to 15 second period. The wind is fresh and offshore, and the combined energy is off the charts. This is big, powerful, clean surf. This is not a beginner wave – it’s for the experienced crew only. The break is a reef and point, which is perfect for handling this kind of long-period groundswell.
After that peak, the swell slowly backs off through the weekend. Saturday, July 25th still has a solid 13ft, but the energy drops a bit. Sunday, July 26th is a beauty for the slightly smaller crowd, with a clean 8ft and a gentle offshore breeze. Beautiful conditions.
There’s a bit of a lull early next week, with the wind turnin’ onshore from Tuesday, July 29th, makin’ a mess of things. The surf gets poor and stays that way through the end of July.
But hang five, because the forecast picks up again heading into August. Saturday, August 1st looks promising with a clean 6ft to 6ft swell and a very long 16 to 17 second period. Light winds, clean conditions. The real highlight of the second week looks set for Sunday, August 2nd afternoon. The swell jumps to 12ft, the wind is offshore and gentle, and the energy is pumpin’. That’s a serious session for those who can handle it.
The first week is the clear winner here. Thursday and Friday are the standouts – big, clean, powerful. Don’t miss it.
Rusty.
Short Range ForecastModerate rain (total 16mm), heaviest on Wed morning. Very mild (max 13°C on Fri night, min 8°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Sat morning. Very mild (max 15°C on Mon morning, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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 12 | WSW 12 | SW 13 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 14 | SW 14 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 172 | 1900 | 5043 | 8055 | 9034 | 9092 | 10844 | 10156 | 8052 | 4598 | 4278 | 2388 | 1724 | 1430 | 408 | 437 | 710 | 1130 | 1170 | 2736 | 2233 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | cross-off | off | off | off | off | off | off | off | off | cross-off | cross-off | off | cross-off | cross-off | off | glassy |
High Tide | 6:35PM1.90m | 5:44AM1.79m | 7:37PM1.83m | 6:15AM1.64m | 8:47PM1.79m | 6:48AM1.51m | 10:02PM1.80m | 7:34AM1.41m | 11:14PM1.86m | 9:13AM1.34m | 00:12AM1.95m | 10:53AM1.35m | 00:56AM2.05m | ||||||||
Low Tide | 11:48AM0.28m | 00:10AM0.99m | 12:28PM0.34m | 1:06AM1.15m | 1:12PM0.42m | 2:29AM1.28m | 2:07PM0.50m | 4:25AM1.33m | 3:17PM0.56m | 6:03AM1.28m | 4:30PM0.58m | 6:59AM1.19m | 5:31PM0.57m | ||||||||
 | |  | | |  |  |  | | | |  | | |  |  | | |  | | | |
 | 7:35 | — | — | 7:35 | — | — | 7:35 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — |
 | — | 5:27 | — | — | 5:27 | — | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — |
mm | 3 | 3 | 3 | 1 | 1 | — | — | 1 | 4 | 2 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 10 | 10 | 11 | 11 | 12 | 12 | 13 | 13 | 12 | 11 | 13 | 14 | 12 | 15 | 14 | 12 | 14 | 14 | 12 |
Feels °C | 8 | 7 | 4 | 2 | 3 | 3 | 4 | 5 | 8 | 8 | 7 | 6 | 9 | 11 | 9 | 12 | 12 | 10 | 12 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 13 | SW 14 | SW 14 | SW 14 | SW 16 | SSW 15 | SW 14 | SW 14 | SSW 13 | SSW 12 | SSW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 13 | SW 14 | SW 14 | SW 15 | SW 15 |
| kJ | 172 | 411 | 1657 | 2509 | 2509 | 5605 | 5472 | 3768 | 2931 | 1929 | 1547 | 956 | 544 | 375 | 408 | 437 | 710 | 1130 | 1170 | 2736 | 2233 |
Swell 2 Height (m) Direction Period (s) | WSW 8 | E 10 | — | — | SW 18 | — | — | — | — | — | — | WSW 17 | S 10 | S 10 | SW 16 | SW 15 | SW 13 | SW 13 | SW 12 | S 14 | — |
| kJ | 43 | 2 | — | — | 266 | — | — | — | — | — | — | 29 | 19 | 31 | 39 | 78 | 511 | 45 | 69 | 36 | — |
Swell 3 Height (m) Direction Period (s) | SW 15 | — | — | — | — | — | — | — | — | — | — | — | SW 17 | WSW 16 | — | — | — | — | — | — | — |
| kJ | 55 | — | — | — | — | — | — | — | — | — | — | — | 11 | 26 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | WSW 12 | SW 13 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | NW 2 | — | — | — | — | — | — |
| kJ | — | 1900 | 5043 | 8055 | 9034 | 9092 | 10844 | 10156 | 8052 | 4598 | 4278 | 2388 | 1724 | 1430 | 2 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 21 | 0 | 0 | 59 | 76 | 76 | 76 | 583 | 37 | 37 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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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