Surf Forecasts:
Marengo surf forecast from 15 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 4PM (local time) - 6.5ft (2.0m), 14s period, SW swell with offshore winds.
- Most powerful swell: Thursday 16 Jul, 1PM (local time) - 8ft (2.4m), 15s period, SW swell with 2,523 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 4PM (local time) - 6.5ft (2.0m), 14s 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 Wednesday (Jul 15) at 4PM. The primary swell is predicted to be 2.0m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Marengo in the next 16 days are 2.4m 15s and forecast to arrive on Thursday (Jul 16) 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 0.3m 2s period and expected on Tuesday (Jul 21) at 1AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Wed 15th Jul) | 6.5ft (2.0m) 14s |
| Best Surf | 4PM (Wed 15th Jul) | 6.5ft (2.0m) 14s |
| Most Powerful | 1PM (Thu 16th Jul) | 8ft (2.4m) 15s |
Table - best surf conditions forecast for Marengo over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's break down the next couple of weeks at Marengo.
It starts off slow, but when it fires, it absolutely fires. The first few days are light, but from Wednesday, July 15th, we get a serious pulse of long-period SW groundswell. The water temp is about 15°, which is normal for this time of year.
Wednesday, July 15th morning is the one to circle. It’s a standout: 13ft swell from the WSW with a 14-second period. The combined energy is massive at 7600. This is big, powerful, and clean with a moderate offshore wind. This is expert-only territory. The afternoon drops to 7ft, still clean, still for the experienced only.
Thursday, July 16th stays solid with 8ft SW swell at 15 seconds in the morning and 8ft in the afternoon, both with clean, light offshore winds. Good energy.
Friday, July 17th is a treat. The swell drops to 7ft in the morning and 6ft in the afternoon, but the period goes to 16 seconds – that’s very long period groundswell. The wind is near-glass. It’ll be clean and lined up, but the long period means longer waits between sets. Best for the point and reef.
Saturday, July 18th and Sunday, July 19th drop hard into the 4ft to 2ft range. The wind goes glassy on Saturday and Sunday afternoons, so it’ll be clean fun for beginners, but small.
There’s a gap from Monday, July 20th to Tuesday, July 21st where the surf is tiny and ordinary. A few days of flatness.
Wednesday, July 22nd is a write-off with strong wind and poor conditions.
Thursday, July 23rd picks up to 6ft to 8ft, but the wind is stiff and cross-off, so it’s messy.
The next real standout is Friday, July 24th. This is the big one for the second week. 15ft in the morning, building to 18ft in the afternoon from the SW. The combined energy is massive: 11,158 in the morning and 16,434 in the afternoon. The wind is offshore. This is for experts only. Absolute monsters.
Saturday, July 25th stays big at 10ft, but the wind goes cross-off in the afternoon.
From Sunday, July 26th through Tuesday, July 28th, the swell holds at 7ft to 8ft with clean conditions. Good solid surf.
Wednesday, July 29th and Thursday, July 30th drop back in size, but Thursday the 30th afternoon has a late pulse of 8ft from the WSW with a gentle offshore wind.
The only true standouts here are Wednesday, July 15th morning and Friday, July 24th. Both are massive, clean, and powerful. The rest is good, but those two are the ones.
Marengo (Marengo) is a reef and point, so it handles the big, long-period stuff well. It’s fairly consistent, and crowds are sometimes a thing, so get there early for the big days.
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Wed morning, min 10°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 14°C on Sat morning, min 10°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
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 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 13 | WSW 13 | SSW 11 | SSW 11 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | WSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5711 | 1580 | 2233 | 2457 | 2387 | 1669 | 1978 | 1654 | 1020 | 639 | 406 | 215 | 161 | 123 | 150 | 261 | 220 | 211 | 99 | 290 | 164 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | glassy | cross | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:59AM1.64m | 1:35AM2.38m | 1:06PM1.76m | 2:16AM2.42m | 2:07PM1.87m | 2:55AM2.40m | 3:03PM1.95m | 3:31AM2.34m | 3:56PM1.99m | 4:06AM2.24m | 4:48PM1.99m | 4:40AM2.10m | 5:40PM1.96m | ||||||||
Low Tide | 6:31PM0.20m | 7:54AM0.89m | 7:26PM0.21m | 8:35AM0.71m | 8:17PM0.26m | 9:14AM0.54m | 9:05PM0.36m | 9:53AM0.40m | 9:51PM0.49m | 10:31AM0.31m | 10:37PM0.65m | 11:09AM0.27m | 11:22PM0.82m | ||||||||
 | |  | | |  |  | | | | | | | |  |  | | | | | | |
 | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — | — | 7:37 | — | — |
 | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 11 | 14 | 12 | 11 | 14 | 14 | 12 | 14 | 14 | 12 | 16 | 17 | 13 |
Feels °C | 10 | 9 | 11 | 11 | 11 | 10 | 11 | 12 | 9 | 13 | 11 | 9 | 12 | 12 | 10 | 11 | 11 | 8 | 12 | 14 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 13 | WSW 13 | SSW 11 | SSW 11 | S 11 | SW 16 | SW 15 | SW 14 | WSW 13 | SW 13 | WSW 12 |
| kJ | 1889 | 1580 | 2233 | 2457 | 2387 | 1669 | 1978 | 1654 | 1020 | 639 | 406 | 215 | 161 | 123 | 82 | 261 | 220 | 211 | 99 | 290 | 164 |
Swell 2 Height (m) Direction Period (s) | — | — | S 15 | — | S 16 | S 15 | — | — | — | — | SSW 12 | SSW 11 | WSW 13 | WSW 12 | SW 18 | SSW 10 | SSW 10 | SSW 10 | SW 14 | E 10 | SW 14 |
| kJ | — | — | 5 | — | 5 | 4 | — | — | — | — | 50 | 102 | 106 | 86 | 150 | 33 | 19 | 9 | 93 | 2 | 147 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 11 | SW 20 | SW 19 | WSW 12 | — | E 11 | E 10 | E 10 | — | E 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 3 | 61 | 58 | 58 | — | 2 | 2 | 2 | — | 2 |
Wind waves Height (m) Direction Period (s) | WSW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 2 | N 3 | — | — |
| kJ | 5711 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 20 | 0 | 21 | 20 | 0 | 21 |
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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