Surf Forecasts:
Marengo surf forecast from 14 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 7AM (local time) - 13ft (4.0m), 14s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 14 Jul, 4PM (local time) - 13ft (4.0m), 15s period, SW swell with 7,801 kJ wave energy.
- Next surfable swell (1★+): Tuesday 14 Jul, 10PM (local time) - 10ft (3.0m), 15s 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 Tuesday (Jul 14) at 10PM. The primary swell is predicted to be 3.0m and 15s 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 4.0m 15s and forecast to arrive on Tuesday (Jul 14) at 4PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 4s period and expected on Tuesday (Jul 21) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Tue 14th Jul) | 10ft (3.0m) 15s |
| Best Surf | 7AM (Wed 15th Jul) | 13ft (4.0m) 14s |
| Most Powerful | 4PM (Tue 14th Jul) | 13ft (4.0m) 15s |
Table - best surf conditions forecast for Marengo over the next 16 days.
The Lowdown
Alright folks, Rusty here with the look ahead for Marengo. This is a reef and point set-up, usually beginner-friendly when it's small, but we've got a serious pulse of energy coming in – so don't let the "beginner" tag fool you for the first few days. Water temp is sitting at 58.5°F, about 1.8°F above the long-term average, so nothing wild, just a touch warmer than usual. Crowds can show up sometimes, but with the size that's coming, there'll be plenty of space.
Right off the bat, Tuesday 14 July morning hits with a massive 18 ft swell out of the WSW, period a deep 16 seconds – that's groundswell with serious punch. Combined energy is a hefty 19461 – that's strong to very strong. Wind is offshore from the W at 18.6 mph, so the faces should be clean, but this is strictly for experts only; anything over 8 ft is gnarly, and this is more than double that. Tuesday afternoon drops to 13 ft from the SW, period 15 seconds, wind swinging to a cross-off WSW at 21.7 mph. Still huge, still expert-only.
Wednesday 15 July morning holds 13 ft WSW, 14-second period, offshore wind 12.4 mph – again, only for the brave. Combined energy 7600, still strong. By Wednesday afternoon it's down to 6.6 ft from the SW, same 14-second period, offshore at 12.4 mph – now we're talking experienced surfers territory. That's a much more manageable size.
Thursday 16 July gives us 7.5 ft SW, period 15 seconds, with light offshore in the morning (WSW 6.2 mph) and a light cross-off in the afternoon. Clean conditions. Energy around 2300 – moderate to strong. Still good for experienced surfers.
Now here's the standout window: Friday 17 July. Morning has 5.9 ft SW, 16-second period, cross-off NW at only 3.1 mph – almost nothing. Afternoon goes to 6.9 ft SW, same long period, and the wind turns glassy – flat calm from the W at 3.1 mph. That's about as clean as it gets. Combined energy around 2240, so plenty of push. For an experienced surfer, this is the pick of the whole run: solid swell, long-period groundswell, and glassy conditions
Short Range ForecastLight rain (total 3mm), mostly falling on Tue morning. Very mild (max 13°C on Tue morning, min 9°C on Tue night). Winds decreasing (fresh winds from the W on Tue morning, light winds from the WSW by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Sun morning, min 10°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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 16 | SW 15 | SW 15 | WSW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | WSW 13 | SSW 12 | SSW 11 | SSW 11 | SW 17 | SW 16 | SW 15 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14933 | 7801 | 2686 | 5711 | 1602 | 1967 | 2264 | 2387 | 1669 | 1513 | 2247 | 1138 | 648 | 373 | 215 | 186 | 128 | 147 | 258 | 217 | 211 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | off | off | off | cross-off | cross-off | cross-off | glassy | cross-off | cross | glassy | cross-off | cross-off | glassy | cross | cross-off | cross | cross-off |
High Tide | 10:38AM1.55m | 00:50AM2.30m | 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 | ||||||||
Low Tide | 5:30PM0.21m | 7:10AM1.07m | 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 | ||||||||
 |  |  |  | | | | |  | | | | | | | | | |  | |  | |
 | 7:41 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:39 | — | — | 7:37 | — | — | 7:37 | — | — |
 | — | 5:21 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:23 | — | — | 5:24 | — |
mm | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 11 | 13 | 13 | 12 | 13 | 12 | 12 | 12 | 12 | 11 | 13 | 12 | 11 | 15 | 15 | 11 | 14 | 14 | 12 |
Feels °C | 5 | 4 | 7 | 9 | 10 | 10 | 11 | 10 | 10 | 10 | 11 | 9 | 11 | 10 | 8 | 13 | 14 | 9 | 10 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | WSW 13 | SSW 12 | SSW 11 | SSW 11 | S 11 | SW 16 | SW 15 | SW 14 |
| kJ | 4528 | 4164 | 2686 | 1889 | 1602 | 1967 | 2264 | 2387 | 1669 | 1513 | 2247 | 1138 | 648 | 373 | 210 | 186 | 128 | 85 | 258 | 217 | 211 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | S 15 | S 16 | S 16 | S 14 | SW 19 | — | — | — | SSW 12 | WSW 13 | WSW 13 | WSW 12 | SW 17 | SSW 10 | S 10 | S 10 |
| kJ | — | — | — | — | — | 4 | 21 | 5 | 4 | 730 | — | — | — | 99 | 215 | 108 | 59 | 147 | 34 | 17 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 16 | S 16 | SW 20 | SW 19 | WSW 13 | SSW 10 | E 14 | E 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 26 | 5 | 60 | 94 | 62 | 33 | 4 | 2 |
Wind waves Height (m) Direction Period (s) | WSW 16 | SW 15 | — | WSW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 3 | N 4 | NNE 4 |
| kJ | 14933 | 7801 | — | 5711 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 6 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 534 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 18 | 20 | 20 | 20 |
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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