
Surf Forecasts:
Marengo surf forecast from 8 Jul 2026:
- Best quality surf: Monday 13 Jul, 1PM (local time) - 21ft (6.5m), 15s period, WSW swell with offshore winds.
- Most powerful swell: Monday 13 Jul, 4PM (local time) - 21ft (6.5m), 16s period, WSW swell with 20,355 kJ wave energy.
- Next surfable swell (1★+): Thursday 9 Jul, 7AM (local time) - 4.5ft (1.4m), 16s 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 Thursday (Jul 09) at 7AM. The primary swell is predicted to be 1.4m and 16s period with a secondary swell of 0.2m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Marengo in the next 16 days are 6.5m 16s and forecast to arrive on Monday (Jul 13) at 4PM. 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 4s period and expected on Sunday (Jul 12) at 4PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Thu 9th Jul) | 4.5ft (1.4m) 16s |
| Best Surf | 1PM (Mon 13th Jul) | 21ft (6.5m) 15s |
| Most Powerful | 4PM (Mon 13th Jul) | 21ft (6.5m) 16s |
Table - best surf conditions forecast for Marengo over the next 16 days.
Hey folks, Rusty here. Let’s have a look at what’s shaping up for Marengo over the next couple of weeks. It’s a bit of a mixed bag, with some real gems and some serious slop to sit out.
We start off a bit slow, but things get interesting. The first real action is on Wednesday morning, the 8th. The swell is already pushing 5 ft from the SW, with a long period of 18 seconds – proper groundswell pushing a ton of energy (2212). That’s a lot of water moving. The wind is a light cross-on from the NE, so it’s workable, but the sea surface won’t be perfect. The water is sitting at 59°, which is a touch warmer than normal for this time of year, so you might get away with a thinner suit.
Thursday morning, the 9th, is a standout. The swell drops a little to 4 ft, but the wind goes glassy with a light NNE breeze. That’s the kind of morning you wait for – clean, smooth, and the wave quality is good. The period is still long at 15 seconds, so there’s proper shape. The energy is solid (756). This is the best early session to get on.
Friday morning, the 10th, is also very clean. The swell holds at 4 ft from the SW, period 15 seconds, and the wind goes cross-off from the NNW. That’s a clean, groomed line. The energy is moderate (716). A good, long session on the cards.
Now, Saturday the 11th goes a bit sideways. The swell drops to 3 ft, but the wind is howling at 22 mph from the NNW. It’ll be clean but wild, and the energy is weak (316). Not worth the paddle.
Sunday the 12th is a no-go for me. Swell jumps to 6 ft, wind is a fresh 22 mph cross-off from the WNW, but the energy is high (1364). The sea state will be messy and the wind is going to make it a battle.
Monday the 13th is a big red flag. The swell is pumping to 10 ft on the morning and then 21 ft in the afternoon. That’s huge, and the wind is offshore at 25 mph. The energy is staggering (3839 and 26086). This is for experts only, if anyone. The comment says it’s too big for the break. I’d leave it.
The second week, from the 15th, it’s still big. Wednesday the 15th has 20 ft swell with strong cross-off winds. The energy is immense (21625). That’s a big, serious ocean. The swell drops to 7 ft on Thursday the 16th, but the wind is still cross-off and the period shortens to 11 seconds. The energy is moderate (1690). It’s clean but not great.
The real standout of the second week comes on Friday the 17th. The swell is a friendly 4 ft from the SW, but the period is a lovely 18 seconds, and the wind goes light offshore from the W. The energy is good (1311). That’s a perfect, clean, long-period point wave. The best wave of the second week.
Saturday the 18th is also clean and similar, with 4 ft swell and cross-off NW winds. Very consistent.
After that, the forecast gets ugly. From Sunday the 19th through Tuesday the 22nd, the wind is strong and cross-shore, the swell is small, and the energy is weak. A few days of flat, choppy junk.
Then, a bit of a late bonus. Wednesday the 22nd and Thursday the 23rd both have solid 7–8 ft SW swell with a long period (15–16 seconds) and light cross-off winds. The energy is high (2954 and 1741). These are excellent for experienced surfers, but the crowd profile says “sometimes” so expect a few heads out. The 23rd morning is the perfect one to aim for.
So, overall, the best on offer is Thursday morning the 9th for the glassy, clean conditions, and then Friday the 17th for the long-period, offshore perfection later in the run. The 22nd and 23rd are also serious calls for the bigger groundswell.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 14°C on Fri morning, min 9°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 22mm), heaviest during Sat afternoon. Very mild (max 13°C on Sat morning, min 8°C on Sat afternoon). Winds decreasing (strong winds from the WSW on Sat night, moderate winds from the W by Mon night). | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
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 18 | SW 17 | SW 16 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | WSW 14 | WSW 12 | SW 13 | SW 13 | SW 14 | SW 15 | WSW 16 | SW 16 | SW 16 | SW 16 | SW 14 |
Wave Graph | |||||||||||||||||||||
1684 | 2327 | 1200 | 724 | 606 | 1215 | 714 | 581 | 418 | 309 | 347 | 359 | 1327 | 1762 | 2626 | 3839 | 20355 | 5041 | 3499 | 2723 | 11613 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | glassy | on | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | off | off | off | off | cross-off | off | cross-off |
High Tide | 6:17PM1.79m | 5:28AM1.80m | 7:21PM1.83m | 5:59AM1.71m | 8:35PM1.88m | 6:39AM1.63m | 9:50PM1.97m | 7:35AM1.57m | 10:59PM2.08m | 9:00AM1.52m | 11:59PM2.20m | 10:38AM1.55m | 00:50AM2.30m | ||||||||
Low Tide | 11:38AM0.39m | 11:47PM0.99m | 12:15PM0.32m | 00:42AM1.16m | 1:00PM0.27m | 1:58AM1.31m | 1:55PM0.25m | 3:47AM1.37m | 3:04PM0.25m | 5:18AM1.33m | 4:20PM0.24m | 6:21AM1.22m | 5:30PM0.21m | ||||||||
7:43 | — | — | 7:43 | — | — | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | 7:41 | — | — | |
— | 5:16 | — | — | 5:16 | — | — | 5:17 | — | — | 5:19 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | |
mm | — | — | — | — | — | — | — | — | — | — | 9 | 4 | 1 | 2 | 2 | 4 | — | — | 1 | 4 | 7 |
Temp °C | 12 | 11 | 10 | 13 | 12 | 10 | 14 | 14 | 11 | 13 | 8 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 9 |
Feels °C | 9 | 8 | 7 | 11 | 10 | 7 | 11 | 11 | 6 | 7 | 2 | 2 | 4 | 4 | 5 | 3 | 3 | 7 | 4 | 2 | -2 |
Swell 1 Height (m) Direction Period (s) | SW 18 | SW 17 | SW 16 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | WSW 14 | WSW 12 | SW 13 | SW 13 | SW 14 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 14 |
1684 | 2327 | 1200 | 724 | 606 | 1215 | 714 | 581 | 418 | 309 | 347 | 359 | 1327 | 1762 | 2626 | 3839 | 5731 | 5041 | 3499 | 2723 | 6656 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | — | — | ESE 12 | SW 20 | — | ESE 5 | — | E 8 | E 8 | NE 5 | SSW 12 | SW 12 | SW 24 | SW 22 | — | — | S 17 | S 16 | S 16 | — |
528 | — | — | 27 | 239 | — | 2 | — | 1 | 1 | 7 | 59 | 37 | 22 | 75 | — | — | 23 | 19 | 5 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 16 | ESE 11 | — | — | — | — | — | N 3 | — | — | — | — | — | — | — | — | — | — |
— | — | — | 5 | 11 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | NNE 2 | N 3 | WNW 3 | NNW 3 | WNW 3 | W 4 | W 3 | WNW 3 | WSW 16 | — | — | WNW 4 | SW 14 |
— | — | — | — | — | — | — | — | 1 | 7 | 1 | 1 | 2 | 12 | 6 | 4 | 20355 | — | — | 13 | 11613 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 18 | 18 | 18 | 0 | 18 | 0 | 0 | 0 | 20 | 390 | 37 | 248 | 37 | 534 | 725 | 390 | 882 | 0 | 390 | 684 | 557 |
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.










