Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Issued: 3 am 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
14.8° C

1.0°C warmer than normal for this time of year

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


Marengo surf forecast from 6 Jul 2026:

  • Best quality surf: Sunday 12 Jul, 7PM (local time) - 21ft (6.5m), 14s period, WSW swell with offshore winds.
  • Most powerful swell: Monday 13 Jul, 7AM (local time) - 21ft (6.5m), 15s period, SW swell with 17,400 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 7AM (local time) - 4.5ft (1.4m), 18s 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 Tuesday (Jul 07) at 7AM. The primary swell is predicted to be 1.4m and 18s period with a secondary swell of 0.4m and 5s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Marengo in the next 16 days are 6.5m 15s and forecast to arrive on Monday (Jul 13) at 7AM. 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 Saturday (Jul 11) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Tue 7th Jul)4.5ft (1.4m) 18s
Best Surf 7PM (Sun 12th Jul)21ft (6.5m) 14s
Most Powerful 7AM (Mon 13th Jul)21ft (6.5m) 15s

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


Updates in  hr  min  s Forecast update imminent

Alright, this is Rusty. Let’s have a look at what’s cooking for Marengo over the next couple of weeks.

Straight up, the first few days are a mixed bag for this reef and point break. The water temperature is sitting at 59°, which is about a degree and a half warmer than usual for this time of year – not a big deal, just a little note for the wetsuit zip.

Tuesday the 7th starts off with a real tease. Early morning, the wind is dead glassy, and we’ve got a 4ft SW groundswell rolling in with a long 17-second period. The water will be like glass, and the combined energy is moderate at 788, so it’s not a monster, but those long lines from a solid direction should make for some clean, lined-up waves. It’s the pick of the first few days, for sure. But the afternoon goes a bit wonky with onshore breezes and questionable tides, so make the most of that dawn session.

Wednesday the 8th is a write-off. The swell bumps up, but the wind is cross-onshore in the morning and becomes onshore in the afternoon, turning the 5ft to 7ft SW swell into a messy crumble. Even with good energy (2212 in the morning), the wind kills it.

Thursday the 9th gives us another early window. Glassy conditions again with a clean 4ft SW swell at 15 seconds. It’s not huge, but the energy is moderate (756), and with offshores that early, it’ll be a fun, smaller session before the wind shifts onshore by the arvo.

Friday the 10th is a good day. The morning is clean with a cross-offshore breeze and a 5ft SW swell. By the afternoon, the wind goes glassy again, and that 4ft SW swell will be clean and workable. This is two good sessions in a row.

Now, Saturday the 11th and Sunday the 12th get blown out. Strong winds hitting 18-21 mph on Saturday turn the surf into a mess, and Sunday sees a building 6ft to 8ft SW swell, but with strong cross-off to fresh offshores, it’ll be clean but very raw and hard to manage.

But here’s where things get heavy. Monday the 13th is the standout, but only for experts. We’re looking at a massive 20ft SW groundswell with a 16-second period. The combined energy is through the roof at 22123 – that’s a BIG ocean. The wind is moderate offshore, so it should be clean, but that size is too big for anyone but the most experienced crew. Tuesday the 14th drops to a still-serious 8ft from the same direction with fresh offshores, again only for the confident surfer.

That whole middle period from about the 11th to the 14th is for the hardcore only, with strong winds and a lot of power.

We have a bit of a lull from Sunday the 18th into Monday the 20th. The swell drops to 2ft and winds are moderate, making for poor conditions. But then things start to look promising again for the last part of the run.

Tuesday the 21st and Wednesday the 22nd are another big pulse. Tuesday afternoon sees a 12ft SW swell with fresh offshores and a very high energy reading of 9203. Wednesday morning pushes even bigger to 13ft with a 15-second period and strong offshores, giving an energy reading of 11685. This is another window for experienced surfers only, but the quality looks high. Wednesday afternoon drops slightly to 10ft from the SSW.

So bottom line: if you’re a beginner, skip the first week and a half. For experienced surfers, Tuesday morning the 7th and Friday the 10th are your fun, manageable windows. Sunday the 13th and Tuesday/Wednesday the 21st-22nd are the big, serious, expert-only swells. Over 8ft at a reef and point means it’s no place for the faint-hearted.

– Rusty

Short Range Forecast

Mostly dry. Very mild (max 13°C on Wed morning, min 9°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Sat afternoon. Very mild (max 14°C on Fri afternoon, min 9°C on Sat night). Winds increasing (calm on Fri morning, fresh winds from the W by Sun afternoon).

Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
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
2
2
3
2
2
3
2
2
3
3
1
0
0
4
1
3
!
!
5
4
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
17
1.3
SW
16
1.3
SW
15
1.6
SW
18
2
SW
17
1.6
SW
16
1.3
SW
15
1.1
SW
15
1.6
SW
16
1.4
SW
15
1.2
SW
15
1.1
SW
14
1
SW
14
1
WSW
14
4
WSW
12
1.8
SW
12
2.4
SW
14
6
WSW
15
6
SW
16
3.5
SW
16
3
SW
17
Wave Graph
Metric surfscale
Energy kJ
611
897
763
1684
2327
1200
724
535
1230
816
666
482
401
413
4257
954
2350
16292
16299
5321
4641
Wind (km/h)
0
NE
5
E
10
ENE
5
NE
15
ENE
10
NNE
5
NNE
10
E
5
N
5
NNW
5
N
20
NNW
30
NNW
25
WSW
15
WNW
30
NW
35
W
25
W
25
WSW
20
W
20
NW
Wind State
glassy
on
cross-on
cross-on
on
cross-on
glassy
on
cross
cross-off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
cross-off
High Tide
5:22PM1.75m
5:01AM1.90m
6:17PM1.79m
5:28AM1.80m
7:21PM1.83m
5:59AM1.71m
8:35PM1.88m
6:39AM1.63m
9:50PM1.97m
7:35AM1.57m
10:59PM2.08m
9:00AM1.52m
11:59PM2.20m
Low Tide
11:06AM0.48m
11:02PM0.83m
11:38AM0.39m
11:47PM0.99m
12:15PM0.32m
00:42AM1.16m
1:00PM0.27m
1:58AM1.31m
1:55PM0.25m
3:47AM1.37m
3:04PM0.25m
5:18AM1.33m
4:20PM0.24m
clear
clear
clear
clear
cloud
cloud
part cloud
part cloud
part cloud
clear
clear
rain showers
part cloud
heavy rain
part cloud
cloud
light rain
part cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:43
7:43
7:43
7:41
7:41
7:41
7:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:16
5:16
5:17
5:19
5:19
5:20
 mm
1
11
2
1
Temp °C
12
12
12
13
12
10
12
12
10
13
14
11
13
11
10
12
12
12
12
12
12
Feels °C
11
11
10
10
9
7
10
10
8
11
12
7
7
6
6
6
5
6
6
7
8
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
17
1.3
SW
16
1.3
SW
15
1.6
SW
18
2
SW
17
1.6
SW
16
1.3
SW
15
1.1
SW
15
1.6
SW
16
1.4
SW
15
1.2
SW
15
1.1
SW
14
1
SW
14
1
WSW
14
1.8
SW
12
1.8
SW
12
2.4
SW
14
3
SW
15
3.5
SW
16
3.5
SW
16
3
SW
17
Energy kJ
611
897
763
1684
2327
1200
724
535
1230
816
666
482
401
413
923
954
2350
4351
5824
5321
4641
Swell 2
Height (m)
Direction
Period (s)
0.8
SSW
12
0.3
ESE
4
0.4
SW
22
1.1
SW
14
0.3
ESE
12
0.6
SW
19
0.2
ESE
5
0.2
ESE
4
0.1
E
8
0.4
SW
13
0.7
SW
19
Energy kJ
171
3
174
528
27
303
2
2
1
45
369
Swell 3
Height (m)
Direction
Period (s)
0.4
ESE
4
0.4
SSE
9
0.1
S
16
0.2
ESE
11
0.3
NE
5
0.2
NNE
4
Energy kJ
6
25
5
11
4
2
Wind waves
Height (m)
Direction
Period (s)
0.6
ESE
8
0.5
N
3
0.4
NW
3
4
WSW
12
0.4
NW
2
0.5
NW
3
6
WSW
15
6
SW
16
Energy kJ
42
5
2
4257
2
5
16292
16299
Nearest Offshore or Glassy
Rating
(10 max)
3
4
5
7
7
5
3
4
5
3
3
2
2
3
5
4
4
9
4
5
5
Distance (km)
0
18
18
18
18
18
0
18
18
0
0
21
69
37
2
35
37
35
59
0
21
Best forecast wave conditions in Cape Otway
Rating
(10 max)
4
4
4
4
4
4
4
4
4
3
3
3
5
4
4
9
5
7
Best forecast wave conditions in Australia
Rating
(10 max)
7
5
5
7
8
6
4
4
5
5
4
4
4
4
5
5
9
9
7
9
7
Header Global
Rating
(10 max)
7
5
5
9
8
9
7
7
6
6
6
5
5
4
5
5
4
9
7
5
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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