
Surf Forecasts:
Marengo surf forecast from 4 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 7AM (local time) - 4.5ft (1.3m), 19s period, SW swell with glassy winds.
- Most powerful swell: Sunday 5 Jul, 7AM (local time) - 11ft (3.5m), 17s period, SSW swell with 6,655 kJ wave energy.
- Next surfable swell (1★+): Monday 6 Jul, 1PM (local time) - 5ft (1.6m), 14s 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 Monday (Jul 06) at 1PM. The primary swell is predicted to be 1.6m and 14s period with a secondary swell of 0.7m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Marengo in the next 16 days are 3.5m 17s and forecast to arrive on Sunday (Jul 05) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Monday (Jul 06) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Mon 6th Jul) | 5ft (1.6m) 14s |
| Best Surf | 7AM (Wed 8th Jul) | 4.5ft (1.3m) 19s |
| Most Powerful | 7AM (Sun 5th Jul) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Marengo over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, folks, Rusty here. Let's have a look at what's on the menu for Marengo over the next couple of weeks.
We’ve got a real mixed bag coming our way. The pattern starts off a bit wild, settles down into some cleaner, smaller windows, and then looks like it might just throw a massive beast at us towards the middle of next week. Keep your eyes peeled for that one.
This Weekend (July 4th – 5th)
We kick off Saturday morning with a solid 10ft SW swell pushing in, but that 12 mph cross-offshore wind from the southwest is going to put a bit of a wobble on it. The wave energy is strong (4979), but it’s messy. Saturday afternoon sees the swell bump up to 12ft from the same direction, with a bit more wind. Honestly, it’s looking a bit average for a proper paddle session; with that much wind and size at a beach setup, this might be more of a kite-surfing day than a day to wrestle a shortboard.
Sunday takes a turn for the worse. The swell stays big, around 12ft, but the wind swings onshore from the ESE. That choppy mess means we’re giving it a hard pass. No bueno.
Next Week (July 6th – 10th)
Now we’re talking. The surf drops off, and the conditions clean right up. Monday morning sees a lighter 6ft SSW swell with a nice light cross-shore, but the real gem is Monday afternoon. Glassy conditions, a clean 5ft SSW groundswell with a period of 14 seconds – that’s proper. The wave energy is moderate (884), but for Marengo, that’s going to be smooth and workable.
Tuesday is similar, with clean, glassy 4ft to 4ft SW swell. The water temp is sitting at 59°, which is pretty much bang on average for this time of year.
The standout of this whole clean spell has to be Wednesday, July 8th . The morning session is the pick: a glassy 5ft SW groundswell rolling in with a very long period of 18 seconds. The swell energy jumps up (2091), and it’s going to have some real push and shape. For the experienced crew, that’s an excellent window. That long period will make the waves at this reef and point set up perfectly.
Thursday and Friday see the size fade back to the 4ft-4ft range, but it’s still glassy and clean, especially Friday morning with zero wind. Perfect small-wave fun.
The Following Weekend (July 11th – 12th)
The weekend takes a hit. The swell drops right off to less than 3ft on Saturday, but we get a strong northerly wind that’s going to chop it right up. Sunday is a write-off with rain and strong cross-offshore winds. Not worth getting wet for.
The Big One (July 13th – 14th)
Alright, here’s the wildcard. Monday the 13th is showing a massive pulse. We’re looking at a 21ft WSW swell. The combined energy reading is absolutely enormous (20394). This is way too big for this spot. That warning flag is up: it’s for experts only, and even then, it might be unsurfable here. Tuesday sees it drop back to a still-chunky 8ft SW swell, but the winds turn cross-offshore, so there might be some big, clean waves for the brave.
The Final Week (July 15th onwards)
We settle back down for the second half of July. Wednesday the 15th through Friday the 17th offers some very clean, manageable surf. The 17th, in particular, has a glassy 4ft SW swell with zero wind – a classic small-wave day rewarded with excellent conditions. The last few days of the outlook (the 18th and 19th) fade away into small, onshore mush.
So, overall? Wednesday morning, July 8th is your best bet for quality. For sheer size and a challenge, keep an eye on Monday, July 13th – but know your limits.
Stay salty,
Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Mon morning, min 9°C on Sun afternoon). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 13°C on Wed morning, min 8°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | |||||||||||||||
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 13 | SW 13 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SW 17 | SW 16 | SW 15 | SW 18 | SW 17 | SW 16 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
3113 | 4149 | 5507 | 6486 | 4643 | 2563 | 1244 | 862 | 479 | 725 | 897 | 753 | 1684 | 2300 | 1438 | 799 | 677 | 1017 | 640 | 469 | 301 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-on | on | cross-on | cross | glassy | cross-off | glassy | glassy | glassy | glassy | on | cross-on | on | on | cross | glassy | glassy | cross |
High Tide | 3:05PM1.65m | 3:44AM2.21m | 3:48PM1.68m | 4:10AM2.12m | 4:33PM1.72m | 4:35AM2.01m | 5:22PM1.75m | 5:01AM1.90m | 6:17PM1.79m | 5:28AM1.80m | 7:21PM1.83m | 5:59AM1.71m | 8:35PM1.88m | ||||||||
Low Tide | 9:04PM0.48m | 10:09AM0.68m | 9:42PM0.57m | 10:37AM0.58m | 10:20PM0.68m | 11:06AM0.48m | 11:02PM0.83m | 11:38AM0.39m | 11:47PM0.99m | 12:15PM0.32m | 00:42AM1.16m | 1:00PM0.27m | 1:58AM1.31m | ||||||||
7:43 | — | — | 7:43 | — | — | 7:43 | — | — | 7:43 | — | — | 7:43 | — | — | 7:43 | — | — | 7:41 | — | — | |
— | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:16 | — | — | 5:17 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 11 | 11 | 11 | 11 | 10 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 12 | 11 | 11 | 10 | 9 | 12 | 12 | 9 |
Feels °C | 7 | 5 | 6 | 5 | 6 | 4 | 11 | 11 | 10 | 11 | 11 | 10 | 11 | 10 | 9 | 7 | 7 | 7 | 10 | 11 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SSW 14 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 14 | SSW 14 | SSW 13 | SW 17 | SW 16 | SW 15 | SW 18 | SW 17 | SW 16 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 |
1866 | 1944 | 5507 | 6486 | 4643 | 2563 | 1244 | 862 | 479 | 725 | 897 | 753 | 1684 | 2300 | 1438 | 799 | 677 | 1017 | 640 | 469 | 301 | |
Swell 2 Height (m) Direction Period (s) | — | S 14 | SSE 16 | S 16 | SSE 16 | — | ESE 6 | ESE 5 | SW 19 | SSW 12 | — | S 8 | SW 14 | SSE 18 | — | E 11 | SW 20 | ESE 4 | ESE 4 | ESE 4 | ESE 11 |
— | 4 | 47 | 129 | 80 | — | 47 | 22 | 122 | 199 | — | 12 | 407 | 30 | — | 2 | 136 | 5 | 6 | 3 | 11 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | ESE 5 | — | — | SW 23 | — | — | — | — | SE 11 | — | E 9 | ESE 12 | — |
— | — | — | — | — | — | — | — | 4 | — | — | 82 | — | — | — | — | 4 | — | 2 | 13 | — | |
Wind waves Height (m) Direction Period (s) | SW 13 | SW 13 | — | — | ESE 4 | E 6 | E 6 | — | — | — | — | — | — | — | — | E 4 | E 4 | — | — | — | ENE 11 |
3113 | 4149 | — | — | 22 | 91 | 59 | — | — | — | — | — | — | — | — | 9 | 9 | — | — | — | 38 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 59 | 583 | 388 | 130 | 226 | 18 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 18 | 18 | 18 | 18 | 18 | 0 | 0 | 18 |
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.










