
Surf Forecasts:
Marengo surf forecast from 10 Jul 2026:
- Best quality surf: Monday 13 Jul, 10AM (local time) - 21ft (6.5m), 15s period, WSW swell with cross-offshore winds.
- Most powerful swell: Monday 13 Jul, 7PM (local time) - 21ft (6.5m), 15s period, WSW swell with 20,405 kJ wave energy.
- Next surfable swell (1★+): Monday 13 Jul, 10AM (local time) - 21ft (6.5m), 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 10AM. The primary swell is predicted to be 6.5m and 15s period with a secondary swell of 3.0m and 16s. 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 6.5m 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 Sunday (Jul 12) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10AM (Mon 13th Jul) | 21ft (6.5m) 15s |
| Best Surf | 10AM (Mon 13th Jul) | 21ft (6.5m) 15s |
| Most Powerful | 7PM (Mon 13th Jul) | 21ft (6.5m) 15s |
Table - best surf conditions forecast for Marengo over the next 16 days.
Alright folks, Rusty here with a long look at what’s on the cards for Marengo (reef and point). Let’s get into it.
Right now, things are flat and messy. The start of the period is a write-off with poor quality surf and a fresh cross-shore wind from the north at 19 mph making a mess of things. You won't want to bother with a paddle for the first day. After that, we’ve got a bit of a wait, but it won’t be long before the ocean wakes up.
Come Sunday the 12th, it starts to get interesting. Early morning, we’re looking at a 7 ft swell from the WSW, with a fresh offshore wind from the WNW at 22 mph. The waves will be clean, but this is already pushing into expert-only territory. By the afternoon, the swell jumps to a massive 20 ft, still with strong offshore wind. The combined swell energy is a staggering 13,442, so this is serious power. Only for the most experienced crew, and even then, paddling in will be a battle. Monday the 13th stays huge – 21 ft from the WSW with a very long 15 to 16-second period, meaning groundswell of the highest order. Combined energy hits 24,196 – that’s a lot of water moving. This break can handle it, but it’s not for the faint-hearted. The reef and point setup might make it work, but for most, it’ll be a tow-in or a spectator day.
The standout of the whole period, if you ask me, lands on Wednesday the 15th and Thursday the 16th. By Wednesday morning, the swell has dropped to a much more manageable 8 ft from the SW, but it’s still got grunt with a 14-second period (combined energy 2,114). The wind is a light offshore from the WNW at just 6 mph. This is clean, powerful, and perfect for experienced surfers. The water temp is 59°, about 2° warmer than average for this time of year – a nice little bonus. Thursday the 16th is even sweeter. The swell is 5 ft from the SW, but the wind goes to absolute glass in the afternoon – 0 mph from the west. Expect clean, lined-up waves that will have a bit of push from that 14-second groundswell. It’s not huge, but the quality will be through the roof. Crowds can be possible here, but on a day like that, any crowd will be a happy one.
Friday the 17th is another gem. Swell holds around 6 ft from the SW with a very long 16-second period, and the afternoon turns glassy with a light breeze from the NE. Combined energy is 1,633 – solid, fun, clean surf. This is the kind of day you call in sick for.
The following week has more action. Monday the 20th brings a building swell again, hitting 15 ft from the WSW by the afternoon, with moderate offshore wind. That’s expert territory, combined energy of 9,746. Then Tuesday the 21st stays big in the morning at 13 ft before dropping off. Wednesday the 22nd has a nice 7 ft from the SSW with glassy afternoon conditions – that’s a good one for a solid session. By the 24th and 25th, the swell drops back to the 5 ft to 7 ft range, but the winds get a little trickier, with cross and cross-onshore breezes. Still surfable, but not as clean as the earlier days.
Overall, the absolute best on offer is Wednesday the 15th through to Friday the 17th. That’s the sweet spot: clean, decent-sized, and with that long-period swell making for proper waves. After that, there are more windows of good surf, but those mid-July days are the ones to circle on the calendar.
Rusty.
Short Range ForecastHeavy rain (total 42mm), heaviest during Sat afternoon. Very mild (max 14°C on Sat morning, min 8°C on Sat night). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Thu morning, min 9°C on Tue night). Winds decreasing (fresh winds from the W on Tue afternoon, calm by Thu afternoon). | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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 | SW 14 | WSW 12 | WSW 13 | WSW 13 | WSW 13 | WSW 15 | WSW 16 | WSW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 14 | SW 14 | SW 16 | SW 16 | SW 16 | SW 14 |
Wave Graph | |||||||||||||||||||||
305 | 211 | 403 | 1407 | 11478 | 13421 | 17780 | 19300 | 18007 | 13922 | 11235 | 3009 | 2114 | 1602 | 924 | 1094 | 886 | 1513 | 1613 | 1474 | 752 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | off | off | off | off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | glassy | cross-off | cross-off | glassy | cross-off |
High Tide | 9:50PM1.97m | 7:35AM1.57m | 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 | ||||||||
Low Tide | 1:55PM0.25m | 3:47AM1.37m | 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 | ||||||||
7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | |
— | 5:19 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | |
mm | — | 11 | 5 | 4 | 5 | 10 | — | 3 | 4 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 12 | 10 | 12 | 12 | 11 | 13 | 13 | 12 | 13 | 13 | 11 | 14 | 13 | 14 | 15 | 15 | 13 | 14 | 14 | 13 |
Feels °C | 7 | 6 | 2 | 3 | 4 | 4 | 6 | 6 | 6 | 6 | 5 | 6 | 11 | 11 | 12 | 13 | 14 | 11 | 12 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | WSW 12 | WSW 13 | SW 13 | SW 14 | SW 16 | SW 16 | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 14 | SW 14 | SW 16 | SW 16 | SW 16 | SW 14 |
305 | 211 | 403 | 1407 | 1945 | 3038 | 4629 | 4896 | 5091 | 4433 | 3557 | 3009 | 2114 | 1602 | 924 | 1094 | 886 | 1513 | 1613 | 1474 | 752 | |
Swell 2 Height (m) Direction Period (s) | E 8 | ENE 5 | ENE 5 | — | SW 22 | — | — | — | — | — | — | S 12 | — | S 14 | SSW 13 | SW 21 | S 11 | S 11 | S 11 | — | S 10 |
1 | 11 | 2 | — | 19 | — | — | — | — | — | — | 12 | — | 4 | 265 | 18 | 64 | 22 | 20 | — | 2 | |
Swell 3 Height (m) Direction Period (s) | — | SW 13 | E 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 20 | — | — | — | — |
— | 43 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 38 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNE 3 | N 3 | NW 3 | WNW 4 | WSW 13 | WSW 13 | WSW 15 | WSW 16 | WSW 15 | SW 15 | SW 15 | — | — | — | — | — | — | — | — | — | — |
6 | 3 | 3 | 17 | 11478 | 13421 | 17780 | 19300 | 18007 | 13922 | 11235 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 41 | 289 | 289 | 570 | 851 | 35 | 600 | 882 | 37 | 59 | 534 | 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.










