Marengo Surf Break

Lat Long: 38.78° S 143.67° E

Marengo Surf Forecast and Surf Report

Issued: 3 am 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Marengo sea temperature is
14.7° C
1.0° 

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


Marengo surf forecast from 18 Jul 2026:

  • Best quality surf: Friday 24 Jul, 1PM (local time) - 21ft (6.5m), 14s period, SW swell with offshore winds.
  • Most powerful swell: Friday 24 Jul, 4PM (local time) - 21ft (6.5m), 14s period, SW swell with 15,534 kJ wave energy.
  • Next surfable swell (1★+): Sunday 19 Jul, 10AM (local time) - 2.5ft (0.8m), 11s period with SSW 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 Sunday (Jul 19) at 10AM. The primary swell is predicted to be 0.8m and 11s period with a secondary swell of 0.6m and 13s. 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 14s and forecast to arrive on Friday (Jul 24) at 4PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Jul 22) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sun 19th Jul)2.5ft (0.8m) 11s
Best Surf 1PM (Fri 24th Jul)21ft (6.5m) 14s
Most Powerful 4PM (Fri 24th Jul)21ft (6.5m) 14s

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


The Lowdown

Alright folks, Rusty here. Let’s break down what’s happening at Marengo over the next couple of weeks.

We’re starting off slow. The first session worth talking about doesn’t really happen until early next week. Sunday the 19th has a tiny 0.8m SSW swell with glassy morning conditions, but the energy is weak (330) and it’s more of a longboard cruise than anything to get excited about.

Monday the 20th remains small, with a 0.8m WSW swell pushing in with a long 16-second period, but the cross-off wind keeps it clean enough for a few fun ones. The energy is still low (359). It’s surfable, but nothing to write home about.

Now, Tuesday the 21st is where we start to see some life. The swell bumps up to 1.2m from the SW with a 14-second period, and the combined energy jumps into the moderate range (532). The morning cross-off wind from the NNW keeps things clean. This is the first decent option for the intermediate crew, offering some proper shape and push.

Wednesday the 22nd is a write-off—strong winds and rain, with the swell dropping back. Not worth your time.

Here’s the standout. Thursday the 23rd brings a big jump. Swell hits 4.0m from the SW with a 13-second period, and the energy is massive (8493). The morning has fresh offshore wind from the WSW, making for clean, powerful lines. This is a big-wave day, only for experienced surfers. The break is a reef and point setup, so that long-period groundswell will wrap in nicely. Water temperature is 15°, which is about a degree warmer than average for this time of year—nothing crazy, but noticeable.

Friday the 24th is even bigger—6.0m to 6.5m from the WSW and SW, with energy readings over 20,000. The wind is offshore all day, but the swell is absolutely massive. This is expert territory only. The guide even flags it as too big for the break, so unless you’re towing in, give it a miss.

The swell slowly drops over the weekend, but Saturday the 25th still has 5.0m to 4.5m SW swell with offshore winds in the morning. Still big, still for the experienced crew.

By Sunday the 26th, it’s down to 2.5m from the SW with a shorter 11-second period, but the wind is strong and cross-off. It’s cleaner than it looks, but the energy is still high (2232). Could be a fun session for strong intermediates who are comfortable in 8-foot surf.

The following week (from the 27th onward) sees the swell drop back to the 1.0m to 2.0m range, with mostly cross-off winds and some periods of offshore. There’s a small window on Thursday the 30th afternoon with 0.8m SW swell and a 12-second period, and the wind is light, making for a glassy little session. Energy is low (328) but it’s clean.

Into the first week of August, the swell flirts with 1.5m from the SW with very long periods (17-20 seconds), but the wind is either too strong or the energy is still moderate. Nothing’s firing, but it’s not flat either.

Overall, the real standout is Thursday the 23rd and Friday the 24th for the big-wave chargers. If you’re after something more moderate, Tuesday the 21st is your best early bet. For the rest of us, it’s a waiting game.

Stay safe out there.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Tue night. Very mild (max 15°C on Mon afternoon, min 10°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 23mm), heaviest during Wed morning. Very mild (max 13°C on Fri afternoon, min 8°C on Wed night). Mainly strong winds.

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
1
1
2
2
2
1
0
0
4
5
6
3
7
!
8
5
6
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
11
0.8
SSW
11
0.5
SW
18
0.8
WSW
16
0.7
SW
15
0.9
SW
15
1.2
SW
14
1.1
SW
13
0.8
WSW
12
0.7
SW
12
0.9
SW
13
4
SW
12
4
SW
13
4.5
SW
14
2.5
SW
16
6
WSW
14
6.5
SW
14
4.5
SW
14
5
SW
13
4.5
SW
12
1.9
SSW
12
Wave Graph
Metric surfscale
Energy kJ
164
158
150
326
220
322
532
400
164
141
290
5456
5445
7997
3483
12954
15534
8133
7290
6123
956
Wind (km/h)
5
NW
5
NE
15
NNW
15
NNW
10
NW
15
NNW
15
NNW
15
NNW
25
NNW
25
WNW
30
WSW
35
WSW
35
WSW
40
WSW
30
W
40
WNW
35
W
35
W
35
WSW
25
WSW
15
WNW
Wind State
glassy
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
off
off
off
off
off
cross-off
off
High Tide
3:56PM1.99m
4:06AM2.24m
4:48PM1.99m
4:40AM2.10m
5:40PM1.96m
5:12AM1.95m
6:35PM1.90m
5:44AM1.79m
7:37PM1.83m
6:15AM1.64m
8:47PM1.79m
6:48AM1.51m
10:02PM1.80m
Low Tide
9:51PM0.49m
10:31AM0.31m
10:37PM0.65m
11:09AM0.27m
11:22PM0.82m
11:48AM0.28m
00:10AM0.99m
12:28PM0.34m
1:06AM1.15m
1:12PM0.42m
2:29AM1.28m
2:07PM0.50m
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
rain showers
rain showers
rain showers
rain showers
light rain
cloud
cloud
rain showers
rain showers
rain showers
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:37
7:37
7:37
7:35
7:35
7:35
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:23
5:24
5:25
5:27
5:27
5:28
5:29
 mm
3
7
2
4
2
1
2
5
2
1
Temp °C
14
14
11
14
15
12
14
14
12
11
10
10
10
11
11
12
13
13
12
11
11
Feels °C
12
12
8
11
13
9
11
11
7
6
4
1
1
2
3
5
6
7
4
6
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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