Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Marengo Surf Forecast and Surf Report

Issued: 3 am 24 Jul 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
14.6° C
0.9° 

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


Marengo surf forecast from 23 Jul 2026:

  • Best quality surf: Wednesday 29 Jul, 1AM (local time) - 18ft (5.5m), 13s period, SW swell with offshore winds.
  • Most powerful swell: Friday 24 Jul, 10AM (local time) - 16ft (5.0m), 15s period, SW swell with 11,140 kJ wave energy.
  • Next surfable swell (1★+): Saturday 25 Jul, 1AM (local time) - 16ft (5.0m), 13s 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 Saturday (Jul 25) at 1AM. The primary swell is predicted to be 5.0m and 13s period with a secondary swell of 2.5m and 14s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Marengo in the next 16 days are 5.0m 15s and forecast to arrive on Friday (Jul 24) at 10AM. 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 Tuesday (Jul 28) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sat 25th Jul)16ft (5.0m) 13s
Best Surf 1AM (Wed 29th Jul)18ft (5.5m) 13s
Most Powerful10AM (Fri 24th Jul)16ft (5.0m) 15s

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


The Lowdown

Alright folks, it’s Rusty here, and I’ve been staring at the charts for our local patch – Marengo. This is a reef and point setup that can handle a bit of size, and it loves a good SSW swell. The water temp is sitting at 58°, which is pretty much what you’d expect for this time of year, nothing weird going on there.

The next few days are going to be a proper ride. The swell is big and the wind is offshore, so if you’ve got the skill level, Friday the 24th is your day. We’re talking a solid 16 ft of SW swell with a 15-second period, so the energy is pumping (16885). The wind is a clean offshore W breeze, but it’s a fresh 15–19 mph, so it’s going to be a workout just getting out there. This is for experienced surfers only – 5 ft is already pushing it for beginners, and 16 ft means you better know what you’re doing. The waves will be lined up, but the paddle out is a mission.

Saturday the 25th is still solid, but the swell starts to ease. You’ll find 13 ft on Saturday morning and 12 ft by the afternoon, still from the SW with a 12-second period. The offshore wind holds, so it’ll be clean. The energy is still significant (7145), but it’s a step down from the peak on Friday.

Then Sunday the 26th is a real standout. The swell drops to 10 ft, but it’s still a long-period SW groundswell at 11 seconds. The wind is a lighter offshore W breeze at 12 mph. Conditions are described as excellent for experienced surfers, and I’d call this the best balance of size and workability. The combined energy is still strong (2858), and the sea state is clean. If you’re looking for a big day that isn’t as terrifying as Friday, this is the one.

We hit a lull after that. Monday and Tuesday see the swell drop right off to 4 ft–5 ft, with the wind shifting cross-offshore. The energy is weak (down to 404 on Monday). Wednesday the 30th sees a bit of a pulse back with a 8 ft SW swell and a beautiful 15-second period. The wind is a gentle offshore WSW breeze, so it’s clean and glassy. This is a great window for a more relaxed session with the energy back up (3093). The weekend of the 1st and 2nd of August is a big one. Saturday the 1st has a 12 ft SW swell in the morning, but it’s cross-offshore. The real standout is Saturday afternoon: a 8 ft SSW swell with a 16-second period. The energy is massive (7147) and the wind is light. This is a rare, powerful groundswell that will be drawn into the point. We’re looking at exceptional conditions for experts. Sunday the 2nd holds 10 ft from the SW with a very long 18-second period, but the wind is light cross-shore, so it won’t be as perfect. That long period groundswell might make it a bit too straight for a beach break, but at a reef and point like Marengo, it’s going to produce some grinding, set waves.

After that, the energy trails off. From the 3rd of August through the 8th, the swell is smaller and the wind is mostly cross or onshore. The energy drops right down (under 1000 most days), and conditions are described as poor. It’s a quiet end to the outlook.

So, to wrap it up: the absolute best on offer is the afternoon of Saturday the 1st of August – that 8 ft SSW groundswell with a 16-second period and light wind is a proper dream scenario for the point. My second pick is Sunday the 26th of July, for the cleanest, most manageable big swell of the first week. Get amongst it.

Rusty.

Short Range Forecast

Moderate rain (total 11mm), heaviest on Fri night. Very mild (max 14°C on Sat morning, min 10°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Tue afternoon. Very mild (max 15°C on Mon morning, min 8°C on Wed night). Winds decreasing (fresh winds from the W on Tue afternoon, light winds from the W by Wed night).

Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
8
8
8
5
4
4
4
4
1
1
2
1
1
2
9
4
4
3
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)
5
SW
15
5
SW
14
5
SW
13
4
SW
12
3.5
SW
12
3
SW
11
3
SW
11
3
SW
10
1.5
SW
11
1.2
SW
11
1.2
SW
11
1.4
SW
14
1.4
SW
15
2.1
SW
15
5.5
SW
13
2.5
SW
15
2.4
SW
14
1.5
SW
13
1.1
SW
14
1.5
SSW
13
1.6
SSW
13
Wave Graph
Metric surfscale
Energy kJ
11140
10299
7479
5346
3521
2592
2213
1946
524
344
338
799
869
1959
10048
3093
2265
767
492
808
875
Wind (km/h)
25
W
30
W
20
W
25
WSW
25
W
25
W
20
W
20
W
15
NW
20
NW
15
NNW
25
NNW
35
NW
40
W
15
WSW
15
WSW
15
WSW
10
NW
10
W
15
W
15
NW
Wind State
off
off
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
off
cross-off
off
off
cross-off
High Tide
8:47PM1.79m
6:48AM1.51m
10:02PM1.80m
7:34AM1.41m
11:14PM1.86m
9:13AM1.34m
00:12AM1.95m
10:53AM1.35m
00:56AM2.05m
12:02PM1.42m
1:30AM2.14m
12:56PM1.53m
2:00AM2.20m
Low Tide
1:12PM0.42m
2:29AM1.28m
2:07PM0.50m
4:25AM1.33m
3:17PM0.56m
6:03AM1.28m
4:30PM0.58m
6:59AM1.19m
5:31PM0.57m
7:32AM1.10m
6:22PM0.53m
7:59AM0.99m
7:06PM0.50m
cloud
light rain
mod rain
rain showers
rain showers
rain showers
clear
clear
part cloud
part cloud
cloud
part cloud
rain showers
light rain
cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:33
7:33
7:31
7:31
7:31
7:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:28
5:29
5:30
5:30
5:31
5:31
5:32
 mm
1
6
2
1
1
1
3
Temp °C
12
11
13
14
13
12
14
14
13
15
15
13
13
12
11
11
11
9
12
12
9
Feels °C
5
4
8
8
7
8
9
9
10
12
12
8
6
4
5
7
6
6
8
8
6
  • 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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