Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Marengo Surf Forecast and Surf Report

Issued: 9 pm 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
14.6° C
0.8° 

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


Marengo surf forecast from 15 Jul 2026:

  • Best quality surf: Thursday 16 Jul, 4AM (local time) - 7.5ft (2.3m), 15s period, SW swell with offshore winds.
  • Most powerful swell: Thursday 16 Jul, 1PM (local time) - 8ft (2.4m), 15s period, SW swell with 2,655 kJ wave energy.
  • Next surfable swell (1★+): Thursday 16 Jul, 4AM (local time) - 7.5ft (2.3m), 15s 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 (Jul 16) at 4AM. The primary swell is predicted to be 2.3m and 15s period with a secondary swell of 0.1m and 15s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Marengo in the next 16 days are 2.4m 15s and forecast to arrive on Thursday (Jul 16) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Jul 23) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Thu 16th Jul)7.5ft (2.3m) 15s
Best Surf 4AM (Thu 16th Jul)7.5ft (2.3m) 15s
Most Powerful 1PM (Thu 16th Jul)8ft (2.4m) 15s

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


The Lowdown

Alright, let’s get into it. We’ve got a solid window of surf coming up at Marengo, a reef and point setup that’s fairly exposed to the swell, so it’s got a decent amount of pull. The water temp is sitting about average for this time of year, nothing wild there.

The real standout is the start of the period. Thursday the 16th kicks off with a strong pulse of SW groundswell, 8ft, 15 seconds, and the combined energy is massive at 2457. That’s a lot of power. The wind is light and cross-off for the morning, and that’s a big positive for clean lines. Afternoon sees the wind swing offshore, still light, so it’s going to be clean all day. This is solid, powerful surf – not for the faint-hearted or beginners. This is for experienced surfers only.

Friday the 17th keeps the run going. Swell drops a touch to 7ft, but the period stretches to 16 seconds, so the energy is still huge (2003). The morning is clear with a slight cross-off, and the afternoon gets glassy with WSW wind dropping to almost nothing. That’s about as good as it gets for a point/reef break. This is the pick of the bunch.

Saturday the 18th sees the swell fade to 4ft, energy dropping to 648. The morning is cross-shore, but the afternoon glass-off with calm wind and 4ft of SW swell. It’s a good little session for the lighter boards.

Sunday the 19th is small, 2ft, but glassy as glass both sessions. The energy is low (335), so it’s a longboard or funboard day. The wind is calm or slight, so the surface will be like a mirror.

From Monday the 20th through to Thursday the 23rd, we’re in a lull. Swell sits around 2ft to 4ft, energy stays under 500. The wind is mostly cross-off or offshore, so it’s clean, but the waves are small. The 21st and 22nd have some glassy moments, but it’s not firing.

Now, pay attention to the end of the week. Friday the 24th into Saturday the 25th, a new SW swell builds quickly, 7ft to 8ft, with strong energy (1784-2267). But the wind picks up too – fresh breeze from the WSW, cross-off. The conditions are marginal, with a lot of wind on the surface. This is more for the experienced crew who don’t mind a bit of chop.

Sunday the 26th looks much better. The swell drops to 6ft, but the wind goes light offshore from the WSW, and the energy is still a solid 1068. Afternoon gets a gentle offshore breeze, and the waves are clean again. This is a good session for the weekend.

Monday the 27th and Tuesday the 28th see another pulse of 7ft to 7ft SW swell, but the wind is cross-off and then cross-shore, getting stronger. The energy is high (1577-1684), but the chop from the wind will make it bumpy. Not the best for clean surfing.

Then we hit a bit of a slump. Wednesday the 29th morning is cross-onshore and poor, but the afternoon gets glassy with a calm wind and a 5ft SW swell, energy 873. That’s a sneaky good session if you can get out.

Thursday the 30th and Friday the 31st are smaller, 3ft to 4ft, but the wind is moderate offshore, and the period on Friday gets long at 17 seconds, energy 874. That’s a clean, long-period groundswell, perfect for the point.

So, the best on offer is without a doubt Thursday the 16th and Friday the 17th. That’s the big, clean, powerful groundswell. After that, Sunday the 26th is a solid second choice. The rest is small stuff or wind-affected. Keep an eye on the last day of the month, Friday the 31st – that long-period swell with offshore wind could be a real treat.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 13°C on Thu morning, min 10°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 16°C on Tue afternoon, min 10°C on Sun night). Wind will be generally light.

Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wed
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
4
4
4
4
4
4
3
1
2
2
2
2
2
2
1
1
2
2
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
SW
15
2.4
SW
15
2.3
SW
15
2
SW
15
2
SW
16
1.8
SW
16
1.6
SW
15
1.3
SW
14
1.1
SW
13
0.8
WSW
13
0.7
WSW
13
0.7
SSW
11
0.5
SW
18
0.7
SW
16
0.7
SW
15
0.7
SW
14
0.9
SW
14
1.1
SW
13
0.6
SW
14
0.7
WSW
12
0.8
SW
12
Wave Graph
Metric surfscale
Energy kJ
2233
2457
2387
1669
2003
1654
1020
648
451
215
147
123
150
261
220
211
293
412
167
127
200
Wind (km/h)
10
W
10
SW
10
WSW
5
NW
5
NW
5
WSW
10
NW
10
N
0
SSW
10
N
5
NNW
0
ENE
10
NNW
15
NNW
15
NNW
15
NW
10
NNW
10
WNW
5
WNW
5
NNW
0
SW
Wind State
off
cross-off
off
cross-off
cross-off
glassy
cross-off
cross
glassy
cross-off
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
glassy
glassy
High Tide
1:35AM2.38m
1:06PM1.76m
2:16AM2.42m
2:07PM1.87m
2:55AM2.40m
3:03PM1.95m
3:31AM2.34m
3:56PM1.99m
4:06AM2.24m
4:48PM1.99m
4:40AM2.10m
5:40PM1.96m
5:12AM1.95m
6:35PM1.90m
Low Tide
7:54AM0.89m
7:26PM0.21m
8:35AM0.71m
8:17PM0.26m
9:14AM0.54m
9:05PM0.36m
9:53AM0.40m
9:51PM0.49m
10:31AM0.31m
10:37PM0.65m
11:09AM0.27m
11:22PM0.82m
11:48AM0.28m
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:39
7:39
7:39
7:37
7:37
7:37
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:22
5:23
5:23
5:24
5:25
5:27
 mm
2
2
Temp °C
12
13
13
12
13
12
11
13
13
11
14
14
12
14
14
11
15
16
12
12
12
Feels °C
9
11
11
10
12
11
9
11
12
9
13
13
10
10
11
7
12
13
9
11
12
  • 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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