Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Marengo Surf Forecast and Surf Report

Issued: 3 pm 29 Jul 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
14.3° C
0.8° 

Marengo surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Marengo surf forecast from 29 Jul 2026:

  • Best quality surf: Wednesday 29 Jul, 7PM (local time) - 15ft (4.5m), 14s period, SW swell with offshore winds.
  • Most powerful swell: Wednesday 29 Jul, 7PM (local time) - 15ft (4.5m), 14s period, SW swell with 8,754 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 29 Jul, 7PM (local time) - 15ft (4.5m), 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 29) at 7PM. The primary swell is predicted to be 4.5m and 14s period with a secondary swell of 3.0m and 15s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Marengo in the next 16 days are 4.5m 14s and forecast to arrive on Wednesday (Jul 29) at 7PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Aug 03) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Wed 29th Jul)15ft (4.5m) 14s
Best Surf 7PM (Wed 29th Jul)15ft (4.5m) 14s
Most Powerful 7PM (Wed 29th Jul)15ft (4.5m) 14s

Table - best surf conditions forecast for Marengo over the next 16 days.


The Lowdown

Alright, Rusty here, let's have a look at what's on the table for the next couple of weeks.

It's a bit of a slow burner at first, but there's some serious grunt coming our way later on. The first few days have a bit of swell, but it's messy and blown out. We'll need to be patient.

We kick off proper on Wednesday morning the 29th of July. Marengo is getting a solid 16ft swell from the SW, but the wind is a nasty cross-off at 22 mph. It's a bit of a washing machine out there, with a massive energy reading (18429) but it's a tough paddle. The afternoon cleans up a fraction, dropping to 13ft, but still cross-off.

Thursday the 30th is where we see the first real improvement. Morning sees a 3ft SW swell with a clean 9 mph offshore wind from the west. The water is about 58°, which is pretty normal for this time of year. It's a gentle, clean little wave. The afternoon holds at 4ft, still offshore.

Friday the 31st of July is a ripper. Morning delivers 4ft of swell from the SSW with a light 6 mph offshore wind from the west. It's clean, glassy, and the energy is low (533), so it's a fun, mellow wave. The afternoon stays light, but the wind swings cross-off.

Saturday the 1st of August is a bit of a mixed bag. The morning is flat and cross-shore, but the afternoon is the standout for the first week. We get a 6ft SW swell with a 17-second period, and a light cross-off breeze from the NNW. The energy jumps to 1927, and it's clean. That's a proper wave for experienced surfers, but it's a little too much for a beginner.

Sunday the 2nd of August drops off again, with a bit of a breeze spoiling it. The 6ft swell is still there, but the wind is up.

Now, we hit a bit of a lull from Monday the 3rd through to the 10th of August. There are waves, mostly in the 3ft to 4ft range, but the wind is unstable, and the quality is variable. The 5th of August afternoon is a bright spot: 4ft SW swell, 17-second period, and a light offshore from the WNW. That's a nice, clean setup. The 6th of August afternoon is glassy with a 4ft swell, which is a dream.

But the real firecracker is waiting for us. Tuesday the 11th of August morning has a 7ft SW swell with a 21-second period and a strong 19 mph offshore wind. The energy is huge at 4836. That's a serious, powerful groundswell. It's for experts only, but it's clean. The afternoon is a monster: 26ft from the WSW with a 19-second period. The energy reading is 55894. That's a beast of a wave. It's too big for this break, but it's a sign of things to come.

Wednesday the 12th of August is the real standout. The morning is an absolute gem: 16ft of SW swell, 16-second period, with a 16 mph offshore wind. The energy is 18214. It's a big, powerful, clean wave for expert surfers only. This is what you wait for.

The last few days of the forecast, from the 13th of August, the swell drops back down to the 4ft to 5ft range, with clean offshore winds, but the energy is dropping off.

For the best of the best, I'm calling Wednesday the 12th of August morning. It's a big, clean, offshore swell that's got the grunt and the shape. The Saturday the 1st of August afternoon is a solid second pick for the first week, and the 5th of August afternoon is a good, clean, fun wave.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Wed night. Very mild (max 14°C on Sat morning, min 10°C on Wed afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Sun night. Very mild (max 14°C on Sat afternoon, min 8°C on Sat night). Winds increasing (light winds from the NNW on Sat afternoon, fresh winds from the NW by Sun night).

Wed
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
7
3
3
2
2
2
2
1
2
4
3
2
2
1
2
3
5
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
4
SW
15
1.8
SW
14
1
SW
14
1.2
SW
12
1.4
SW
12
1.3
SSW
12
1.2
SW
12
1.1
SW
12
1.1
SW
17
1.8
SW
17
2.1
SW
16
1.6
SW
16
1.6
SW
15
1.3
SW
15
1.2
SW
15
2.2
SW
14
4
WSW
13
1.6
SW
12
1.4
SW
12
0.7
SW
21
Wave Graph
Metric surfscale
Energy kJ
7074
1255
357
423
637
496
428
341
655
1904
2220
1330
1125
767
606
1850
5016
666
488
416
Wind (km/h)
30
SW
20
SW
15
WSW
15
WSW
10
W
10
WSW
10
SW
5
N
10
NNE
5
NNW
15
N
20
N
20
N
30
NW
30
W
30
W
20
WSW
10
W
20
W
10
NW
Wind State
cross-off
cross-off
off
off
off
off
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross-off
off
off
off
off
off
cross-off
High Tide
1:30AM2.14m
12:56PM1.53m
2:00AM2.20m
1:41PM1.64m
2:27AM2.23m
2:22PM1.76m
2:52AM2.22m
3:01PM1.86m
3:16AM2.17m
3:40PM1.94m
3:40AM2.10m
4:19PM2.00m
Low Tide
6:22PM0.53m
7:59AM0.99m
7:06PM0.50m
8:24AM0.87m
7:46PM0.49m
8:48AM0.74m
8:23PM0.50m
9:11AM0.61m
8:59PM0.53m
9:36AM0.48m
9:35PM0.60m
10:01AM0.36m
10:10PM0.69m
part cloud
rain showers
cloud
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
rain showers
clear
part cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:30
7:28
7:28
7:26
7:26
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:31
5:32
5:34
5:35
5:36
5:37
5:37
 mm
1
1
1
2
Temp °C
12
11
11
11
11
13
12
11
14
14
10
14
14
12
12
12
11
12
12
9
Feels °C
5
4
7
7
9
10
9
10
11
11
6
9
9
5
6
5
4
7
8
6
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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