Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Marengo Surf Forecast and Surf Report

Issued: 3 pm 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
14.7° C
1.0° 

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


Marengo surf forecast from 21 Jul 2026:

  • Best quality surf: Friday 24 Jul, 4AM (local time) - 20ft (6.0m), 15s period, SW swell with cross-offshore winds.
  • Most powerful swell: Friday 24 Jul, 4AM (local time) - 20ft (6.0m), 15s period, SW swell with 16,415 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 22 Jul, 7AM (local time) - 2.5ft (0.8m), 12s 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 22) at 7AM. The primary swell is predicted to be 0.8m and 12s period with a secondary swell of 0.5m and 8s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Marengo in the next 16 days are 6.0m 15s and forecast to arrive on Friday (Jul 24) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Jul 27) at 10AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Wed 22nd Jul)2.5ft (0.8m) 12s
Best Surf 4AM (Fri 24th Jul)20ft (6.0m) 15s
Most Powerful 4AM (Fri 24th Jul)20ft (6.0m) 15s

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


The Lowdown

Alright folks, Rusty here. We’ve got a solid run of surf on the way for Marengo, but you’ve gotta be ready for the serious size if you want the best of it.

## Imperial

The next few days start off small and clean but nothing to get too excited about. Tuesday afternoon, the 21st of July, you’ll see some 4ft swell from the southwest at 13 seconds. The water is sitting at 59°, which is about average for this time of year. It’s a light breeze, cross-off wind, and the energy is moderate (400). It’s surfable but not the standout.

The real news kicks off Thursday, the 23rd. That’s when the ocean wakes up. Thursday morning brings a massive 15ft southwest swell, with a period of 14 seconds and a combined energy of 10429 – that’s strong to very strong. The wind is offshore from the WSW at 15 mph, so it’s gonna be clean. But let me be clear: this is *not* for beginners. Over 8ft is expert territory, and this is well over that. The wind cranks up to 22 mph in the afternoon, making it even more challenging. If you’re not a seasoned charger, stay on the beach for this one.

Friday, the 24th, is the absolute standout. Morning sees a 16ft southwest swell, a 15-second period (very long period groundswell), and the energy is through the roof at 16612. The wind is a clean offshore 16 mph from the west. This is what you dream about. The long period will make it powerful and hold up well on the reef and point setup at Marengo. It’s only for experts, but if you’re one of them, this is your window. The afternoon stays similar but with a bit more wind.

The energy drops a bit over the weekend, but Saturday the 25th still has a 8ft SSW swell in the morning with offshore wind. It’s still clean and a notch down in size for the brave intermediates. Sunday the 26th is a nice, manageable 5ft southwest swell with gentle offshore wind – a good day for the less experienced.

Then, a real hidden gem pops up on Tuesday the 28th of July. Tuesday afternoon turns glassy – zero wind, a 16ft WSW swell, and a 14-second period. The energy is 11908. The wind is glassy calm. That is a rare combination of massive size and absolute perfection. Pure magic for the experts.

The first week of August sees the swell fade back to small, 4ft to 5ft, with periods dropping. The winds are less reliable, often cross or cross-on, and the energy is weak to moderate. Wednesday the 5th of August has clean conditions but small, 4ft swell. It’s a quiet end to the period.

Remember, this is a reef and point break, so it handles the big south-west swells well, but it can get crowded here sometimes. The water stays about average for the season.

Rusty out.

Short Range Forecast

Moderate rain (total 14mm), heaviest on Tue night. Very mild (max 14°C on Tue afternoon, min 8°C on Wed night). Winds increasing (light winds from the NNW on Tue afternoon, fresh winds from the WSW by Thu night).

Days 5-7 Weather Summary

Moderate rain (total 12mm), heaviest on Fri night. Very mild (max 15°C on Mon morning, min 10°C on Sun night). Winds decreasing (fresh winds from the W on Fri afternoon, light winds from the NW by Sun afternoon).

Tue
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
1
1
6
7
4
6
8
8
7
4
4
3
2
2
1
0
4
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
13
0.6
SW
14
0.9
SW
12
0.8
SW
13
4
SW
13
4.5
SW
14
3.5
SW
14
4.5
SW
15
5
SW
15
5
SW
14
5
SW
13
2.4
SSW
13
4
SW
12
1.8
SW
12
1.4
SW
11
1.1
SW
11
0.8
SW
10
0.9
SW
10
2.5
WSW
11
4
WSW
12
Wave Graph
Metric surfscale
Energy kJ
400
149
244
231
5119
8055
4858
8882
11140
9730
7721
1771
4001
857
493
273
124
157
1656
4869
Wind (km/h)
10
NNW
25
NW
20
NW
20
W
25
WSW
25
WSW
35
WSW
35
WSW
25
W
35
W
30
W
25
W
25
WSW
15
W
15
W
15
WNW
15
NW
15
NW
20
W
10
NW
Wind State
cross-off
cross-off
cross-off
off
off
off
off
cross-off
off
off
off
off
cross-off
off
off
off
cross-off
cross-off
off
cross-off
High Tide
5:40PM1.96m
5:12AM1.95m
6:35PM1.90m
5:44AM1.79m
7:37PM1.83m
6:15AM1.64m
8:47PM1.79m
6:48AM1.51m
10:02PM1.80m
7:34AM1.41m
11:14PM1.86m
9:13AM1.34m
00:12AM1.95m
Low Tide
11:22PM0.82m
11:48AM0.28m
00:10AM0.99m
12:28PM0.34m
1:06AM1.15m
1:12PM0.42m
2:29AM1.28m
2:07PM0.50m
4:25AM1.33m
3:17PM0.56m
6:03AM1.28m
4:30PM0.58m
part cloud
light rain
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
part cloud
light rain
rain showers
rain showers
rain showers
rain showers
clear
part cloud
part cloud
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:35
7:35
7:33
7:33
7:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:25
5:27
5:27
5:28
5:29
5:30
5:30
 mm
3
2
1
3
2
2
1
1
4
3
1
3
Temp °C
14
11
11
12
10
10
10
11
12
12
13
12
12
12
13
13
12
15
14
12
Feels °C
11
7
7
7
5
1
1
2
5
6
8
7
7
9
10
10
9
11
10
10
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Marengo:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Marengo surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest