Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Marengo Surf Forecast and Surf Report

Issued: 3 am 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
13.9°C
0.7° 

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


Marengo surf forecast from 9 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 10AM (local time) - 10ft (3.0m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 15 Sep, 7AM (local time) - 16ft (5.0m), 13s period, SW swell with 7,595 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 10AM (local time) - 10ft (3.0m), 16s 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 Thursday (Sep 10) at 10AM. The primary swell is predicted to be 3.0m and 16s period. 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 5.0m 13s and forecast to arrive on Tuesday (Sep 15) at 7AM. Winds are predicted to be cross-offshore 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 (Sep 14) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Thu 10th Sep)10ft (3.0m) 16s
Best Surf10AM (Thu 10th Sep)10ft (3.0m) 16s
Most Powerful 7AM (Tue 15th Sep)16ft (5.0m) 13s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s heading our way for Marengo over the next couple of weeks. We’ve got a big run of SW groundswell on the horizon, so strap in.

We start off Thursday the 10th with a solid pulse of energy. The swell is a clean 10 ft from the SW with a long 16-second period, and the wind is a light cross-off. That’s about as good as it gets for experienced surfers here. The water is sitting at 57°, which is bang on average for this time of year, so no surprises there. The combined energy is a massive 5419, which is strong, and you’ll feel every bit of it. The reef and point set-up at Marengo handles this size well, but this is definitely not for beginners. The morning is the standout.

Friday the 11th keeps the goods coming. The morning is cross-off again with a 8 ft SW swell at 15 seconds. Still clean, still powerful. The afternoon gets a bit of a cross breeze, but it’s still surfable.

Saturday the 12th drops off a touch. The swell is 7 ft, but the wind goes cross-on from the ENE, bringing some bumps. It’s still rideable, but the magic is gone.

Sunday the 13th is a mixed bag. The morning is pretty average with a 4 ft SW swell and a moderate cross-wind. The afternoon cleans up with a cross-off breeze and a 4 ft swell, but it’s small.

Monday the 14th is a weird one. The morning has a 5 ft W swell, but it’s only 6 seconds – that’s short period, wind-swell stuff. It’s clean with offshore wind, but it won’t have much shape. The afternoon is a write-off with a tiny 2 ft swell.

Tuesday the 15th sees the size jump back up. The morning is 8 ft from the SW, with a 13-second period and cross-off wind. It’s clean, but the tide might be a factor. The afternoon is 10 ft, same story.

Wednesday the 16th is a beauty. The wind is light cross-off and the swell is a consistent 8 ft at 15 seconds, clean as a whistle. Excellent conditions for experienced surfers all day.

Thursday the 17th is still good. The morning is glassy with a 6 ft SW swell, and the afternoon is offshore at 6 ft. Very clean.

Now, Friday the 18th is the big one. The morning has a 12 ft SW swell with a 13-second period, and the wind is gentle offshore. The combined energy is 6757, which is exceptional. This is expert territory only. The reef and point will handle it, but it will be a serious session.

After that, the swell fades. Saturday the 19th and Sunday the 20th are smaller and less clean. Monday the 21st is a write-off with a strong cross-on wind and a 15 ft swell that’s just messy.

Tuesday the 22nd is a return to form – clean, cross-off wind with a 8 ft SW swell. Good for experienced surfers again.

Wednesday the 23rd and Thursday the 24th are big, but the wind is cross or cross-on, making it a bit of a washing machine. The heights are 15 ft to 16 ft, but the quality is compromised.

Friday the 25th is the last day of the forecast. A 12 ft SSW swell with a 17-second period, but the wind is light cross-on, so it’s not perfect.

If you’re looking for the best of the best, lock in Thursday the 10th for the morning. The 10 ft SW groundswell, long period, and clean cross-off wind is a true standout. The Friday the 18th morning is a close second, but that’s serious size for experts only.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 17°C on Sat morning, min 9°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Sun afternoon. Warm (max 21°C on Sun morning, min 8°C on Tue night). Winds decreasing (fresh winds from the W on Mon morning, calm by Tue night).

Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
5
3
4
4
3
4
3
3
2
1
3
2
2
0
2
3
3
4
4
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SW
16
3
SW
16
2.4
SW
15
2.3
SW
15
2.5
SW
16
2.5
SW
16
2.1
SW
15
1.8
SW
15
1.6
SW
15
1.3
SW
15
1.2
SW
15
0.9
SW
15
0.7
SW
14
0.6
SW
13
2.5
SW
11
2.4
SW
13
3
SW
14
2.5
SW
14
2.4
SW
15
2.4
SW
15
2.1
SW
15
Wave Graph
Metric surfscale
Energy kJ
5419
3842
2392
2307
3178
3098
1976
1581
1169
799
674
355
215
144
1385
1942
3187
2506
2620
2690
1967
Wind (km/h)
15
SW
15
SW
5
W
10
SSW
10
S
5
NNE
5
ENE
10
SE
10
N
20
N
15
NNW
20
WNW
20
WNW
30
W
25
WSW
20
SW
20
SW
10
SSW
5
SSW
10
SSW
5
N
Wind State
cross-off
cross-off
off
cross-off
cross
glassy
cross-on
cross-on
cross
cross
cross-off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
11:23AM1.61m
00:17AM1.97m
12:30PM1.85m
00:56AM2.06m
1:20PM2.08m
1:32AM2.11m
2:03PM2.25m
2:04AM2.12m
2:41PM2.36m
2:34AM2.10m
3:17PM2.38m
3:03AM2.04m
3:51PM2.34m
3:30AM1.96m
Low Tide
5:43PM0.62m
6:36AM0.75m
6:42PM0.57m
7:11AM0.53m
7:29PM0.53m
7:45AM0.36m
8:10PM0.52m
8:17AM0.23m
8:47PM0.54m
8:47AM0.16m
9:22PM0.59m
9:18AM0.14m
9:54PM0.68m
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
light rain
rain showers
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:33
6:31
6:30
6:28
6:26
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:09
6:10
6:12
6:13
6:13
6:14
6:15
 mm
1
1
Temp °C
12
12
10
13
12
10
17
17
16
21
20
18
17
16
11
12
12
10
11
11
8
Feels °C
8
8
8
10
9
8
14
15
12
17
17
15
11
10
5
6
7
6
8
9
7
  • Map Icons:
  • Break
  • 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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