Surf Forecasts:
Marengo surf forecast from 26 Jul 2026:
- Best quality surf: Saturday 1 Aug, 10PM (local time) - 5ft (1.6m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 1PM (local time) - 13ft (4.0m), 16s period, SW swell with 7,773 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 1PM (local time) - 4.5ft (1.4m), 11s period with SSW 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 Sunday (Jul 26) at 1PM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.1m and 16s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Marengo in the next 16 days are 4.0m 16s and forecast to arrive on Wednesday (Jul 29) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Jul 28) at 7AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sun 26th Jul) | 4.5ft (1.4m) 11s |
| Best Surf | 10PM (Sat 1st Aug) | 5ft (1.6m) 16s |
| Most Powerful | 1PM (Wed 29th Jul) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Marengo over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break this down.
The first few days are a slow burn. Swell is around, but the wind doesn’t play nice until later. The water’s sitting near 58°, which is close to normal for the time of year. Nothing unusual.
Sunday July 26th morning hits with an 8ft SW swell, 11-second period, offshore west wind at 20 mph. Clean, but that’s expert territory. Wave energy is strong at 2,010. Afternoon drops to 4ft SSW, still clean.
Monday and Tuesday are marginal. Swell around 4 to 4ft, but the wind goes cross-off from the NNW, and the energy is moderate (415 to 767). Not worth the drive.
Tuesday July 28th afternoon, things kick back up: 6ft SW, 15-second period, offshore west wind at 22 mph. Wave energy is 1,407. Solid, but that long period might make it a bit tricky.
Wednesday July 29th is huge. Morning has 8ft SW, 16-second groundswell, wave energy 3,305. Afternoon blows up: 13ft SW, 15 seconds, wave energy 9,887. Only for the brave, cross-off wind keeps it clean but heavy. This is the standout for the big-wave crew.
Thursday July 30th is rainy and messy with cross-off wind. 10ft in the afternoon, energy 3,255, but not clean.
Friday July 31st and Saturday August 1st calm down. Saturday afternoon is the gem: 5ft SW, 16-second period, glassy wind, wave energy 1,039. Clean, smooth, and fun.
Sunday August 2nd and Monday August 3rd are cross-shore and chopped out. Skip it.
Tuesday August 4th afternoon: 12ft SW, offshore wind at 12 mph, 4,731 energy. Clean, heavy—experts only.
Wednesday August 5th holds: 12ft WSW morning, 3,989 energy, clean. Afternoon still 8ft, light, clean.
Thursday August 6th afternoon: 8ft SW, 12 seconds, 3,837 energy, clean cross-off.
Friday August 7th afternoon: 7ft SW, 17-second period, 4,026 energy, clean cross-off. Long gaps between sets, better for a point break.
The last few days, August 8th to 10th, fade. Swell drops under 3ft, wind gets fresh and messy. Poor conditions.
Best bets: Wednesday July 29th afternoon for the big, clean, heavy stuff. Saturday August 1st afternoon for the smooth, glassy, smaller waves. All at Marengo (Victoria).
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Tue afternoon. Very mild (max 16°C on Mon morning, min 6°C on Tue night). Winds increasing (light winds from the WNW on Sun afternoon, fresh winds from the SW by Tue night). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Thu morning. Very mild (max 12°C on Fri morning, min 9°C on Wed afternoon). Winds decreasing (fresh winds from the SW on Wed morning, calm by Thu night). | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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 11 | SSW 11 | SW 11 | SW 11 | SW 13 | SW 14 | SW 14 | SW 15 | W 11 | SW 16 | SW 15 | SW 14 | SW 13 | SW 13 | SSW 12 | SSW 12 | SSW 12 | SW 13 | SW 17 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1456 | 375 | 341 | 283 | 529 | 833 | 612 | 1326 | 1896 | 2578 | 6216 | 5474 | 628 | 2636 | 702 | 545 | 429 | 376 | 423 | 1039 | 1215 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | off | cross-off | cross-off | cross-off | glassy | cross-off |
High Tide | 11:14PM1.86m | 9:13AM1.34m | 00:12AM1.95m | 10:53AM1.35m | 00:56AM2.05m | 12:02PM1.42m | 1:30AM2.14m | 12:56PM1.53m | 2:00AM2.20m | 1:41PM1.64m | 2:27AM2.23m | 2:22PM1.76m | 2:52AM2.22m | ||||||||
Low Tide | 3:17PM0.56m | 6:03AM1.28m | 4:30PM0.58m | 6:59AM1.19m | 5:31PM0.57m | 7:32AM1.10m | 6:22PM0.53m | 7:59AM0.99m | 7:06PM0.50m | 8:24AM0.87m | 7:46PM0.49m | 8:48AM0.74m | 8:23PM0.50m | ||||||||
 |  |  | | |  |  |  |  |  | |  | | | | | | | | | | |
 | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — |
 | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — |
mm | — | — | — | — | — | — | 1 | 6 | 5 | 1 | 1 | 2 | 3 | 2 | 1 | — | — | — | — | — | — |
Temp °C | 14 | 14 | 11 | 16 | 15 | 13 | 12 | 8 | 9 | 11 | 11 | 10 | 11 | 11 | 11 | 12 | 11 | 10 | 13 | 14 | 10 |
Feels °C | 10 | 11 | 9 | 12 | 11 | 7 | 6 | 0 | 1 | 3 | 4 | 3 | 6 | 6 | 8 | 9 | 8 | 8 | 10 | 11 | 7 |
Swell 1 Height (m) Direction Period (s) | SSW 11 | SSW 11 | SW 11 | SW 11 | SW 13 | SW 14 | SW 14 | SW 15 | SW 15 | SW 16 | SW 15 | SSW 9 | SW 13 | SW 12 | SSW 12 | SSW 12 | SSW 12 | SW 13 | SW 12 | SW 16 | SW 16 |
| kJ | 543 | 375 | 341 | 283 | 529 | 833 | 612 | 1326 | 1881 | 2578 | 3671 | 374 | 628 | 423 | 702 | 545 | 429 | 376 | 209 | 1039 | 1215 |
Swell 2 Height (m) Direction Period (s) | SW 17 | WSW 16 | SW 16 | SW 14 | SW 14 | S 16 | WSW 12 | W 16 | S 14 | — | — | SW 14 | S 9 | SSW 8 | SW 23 | SW 21 | SW 20 | SW 18 | SW 17 | — | — |
| kJ | 11 | 26 | 39 | 132 | 238 | 19 | 125 | 81 | 4 | — | — | 965 | 220 | 151 | 21 | 72 | 186 | 203 | 423 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 14 | — | — | — | — | — | — | SW 13 | S 13 | S 13 | S 13 | S 14 | E 12 | — | — |
| kJ | — | — | — | — | — | — | 4 | — | — | — | — | — | — | 45 | 3 | 3 | 3 | 4 | 3 | — | — |
Wind waves Height (m) Direction Period (s) | SW 11 | — | — | — | — | N 3 | N 3 | NW 3 | W 11 | SSW 9 | SW 15 | SW 14 | — | SW 13 | — | — | — | — | — | — | — |
| kJ | 1456 | — | — | — | — | 4 | 5 | 3 | 1896 | 727 | 6216 | 5474 | — | 2636 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 2 | 20 | 41 | 186 | 397 | 276 | 351 | 182 | 35 | 2 | 59 | 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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