Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Marengo Surf Forecast and Surf Report

Issued: 3 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
14.0°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 1 Sep 2026:

  • Best quality surf: Thursday 3 Sep, 7PM (local time) - 18ft (5.5m), 14s period, WSW swell with offshore winds.
  • Most powerful swell: Thursday 3 Sep, 7PM (local time) - 18ft (5.5m), 14s period, WSW swell with 13,275 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 2 Sep, 7AM (local time) - 5ft (1.6m), 17s 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 (Sep 02) at 7AM. The primary swell is predicted to be 1.6m and 17s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Marengo in the next 16 days are 5.5m 14s and forecast to arrive on Thursday (Sep 03) 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 0.8m 4s period and expected on Thursday (Sep 03) at 7AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Wed 2nd Sep)5ft (1.6m) 17s
Best Surf 7PM (Thu 3rd Sep)18ft (5.5m) 14s
Most Powerful 7PM (Thu 3rd Sep)18ft (5.5m) 14s

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


The Lowdown

Alright, this is a look at the next 16 days for Marengo, a reef and point. We’ve got a classic event window coming up, but you’ve got to pick your moments.

Right now we’re in a quiet spell, not much to get excited about, but come Thursday, things properly kick off. Thursday the 3rd is the big one to circle on your calendar. We’ve got a solid 18 ft southwest groundswell with a 14-second period rolling in, and the wind is offshore and fresh all day. It’s a beast – with combined energy readings hitting 13762 to 15143, this is a seriously powerful, straight-up serious surf day. That said, at that size, Marengo is going to be heavy and hollow, strictly for experienced surfers. This is the standout window.

There's another pulse early Saturday the 5th with another 18 ft WSW swell, but the wind is howling from the WNW at 25 mph. Even though it’s offshore, that’s strong enough to make paddling out a real battle and the surface will be all torn up. Not as user-friendly as Thursday's window.

We do get a couple of glassy mornings that will offer a break from the heavy stuff. Monday the 7th morning is glassy with only a small 3 ft swell (256 energy), so it’s a session for the longboard or for getting your bearings, not for power. Then on Tuesday the 8th morning, the swell bumps up to 4 ft with a very long 18-second period and glassy conditions. That’s a real gem for the point – a long-period groundswell will wrap in perfectly here, offering clean, lined-up waves with easy paddling between sets.

Later on, Sunday the 12th morning brings an 8 ft SW groundswell with a 16-second period and glassy conditions. That’s excellent for experienced surfers – plenty of power but clean. The energy is strong at 5158. The swell is also predicted to be too big for the break on Monday the 14th morning (18 ft SW, period 17 seconds, energy hitting 28631). That’s a massive, dangerous swell for this setup.

So, in short, Thursday the 3rd is the no-brainer for the big, powerful, expert-level session. For something clean but easier, the Tuesday the 8th morning is your pick for those long, peeling point waves. The rest of the second week has windows of good swell, but you’ll be dealing with onshore winds that’ll mess up the surface.

Stay safe out there.

- Rusty

Short Range Forecast

Moderate rain (total 16mm), heaviest on Fri night. Very mild (max 15°C on Fri morning, min 8°C on Thu night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Sat morning. Very mild (max 14°C on Sun morning, min 8°C on Mon night). Winds decreasing (strong winds from the W on Sat morning, calm by Mon night).

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
4
2
6
8
4
4
3
2
2
4
5
4
2
2
2
2
3
3
4
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
SW
16
2
SW
15
2.1
SW
15
4
SW
14
5.5
WSW
14
3.5
SW
15
3
SW
16
3
SW
16
2.5
SW
16
2.1
SW
15
3
SW
15
4
WSW
12
2.1
W
14
1.6
SW
13
1.3
SW
13
1
SW
13
0.6
SW
21
0.8
SW
20
1.3
SW
18
1.6
SW
17
1.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
1739
1776
1907
5512
12490
4739
4065
3820
2963
1882
4514
5195
1784
933
504
315
274
537
1099
1519
1185
Wind (km/h)
20
WNW
20
WNW
25
NW
35
W
30
W
15
NW
20
NW
15
NNW
25
NNW
35
WNW
40
W
25
WSW
15
WSW
15
WSW
5
WNW
15
SW
15
SW
5
ESE
5
W
20
W
25
SW
Wind State
cross-off
off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
off
cross-off
cross-off
glassy
off
off
cross-off
High Tide
3:56PM2.28m
3:30AM1.99m
4:34PM2.25m
3:56AM1.93m
5:16PM2.15m
4:24AM1.85m
6:06PM2.01m
4:57AM1.76m
7:10PM1.86m
5:37AM1.63m
8:43PM1.77m
6:47AM1.48m
10:19PM1.79m
Low Tide
9:55PM0.70m
9:54AM0.07m
10:28PM0.82m
10:27AM0.05m
11:03PM0.95m
11:05AM0.10m
11:43PM1.09m
11:49AM0.22m
00:37AM1.23m
12:46PM0.40m
2:34AM1.31m
2:18PM0.59m
clear
part cloud
rain showers
part cloud
part cloud
clear
clear
light rain
rain showers
rain showers
rain showers
part cloud
part cloud
part cloud
cloud
clear
clear
part cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:47
6:46
6:43
6:43
6:41
6:39
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:02
6:04
6:05
6:06
6:06
6:07
6:07
 mm
3
1
12
5
3
1
Temp °C
14
14
13
13
13
11
15
14
14
12
12
12
14
14
12
14
13
11
14
13
11
Feels °C
9
9
8
5
6
6
11
10
10
5
4
6
10
10
10
11
10
9
10
9
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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