Johanna Surf Break

Lat Long: 38.78° S 143.42° E

Johanna Surf Forecast and Surf Report

Issued: 3 am 12 Aug 2026 (local time)

Forecast update in  hr  min

Today's Johanna sea temperature is
14.1° C
0.7° 

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


Johanna surf forecast from 11 Aug 2026:

  • Best quality surf: Saturday 15 Aug, 10AM (local time) - 13ft (4.0m), 15s period, SW swell with glassy winds.
  • Most powerful swell: Thursday 13 Aug, 7AM (local time) - 18ft (5.5m), 16s period, SW swell with 13,755 kJ wave energy.
  • Next surfable swell (1★+): Saturday 15 Aug, 10AM (local time) - 13ft (4.0m), 15s period with SW swell.

Best Forecast Surf Conditions for Johanna this week:

The surf forecast for Johanna over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 15) at 10AM. The primary swell is predicted to be 4.0m and 15s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Johanna in the next 16 days are 5.5m 16s and forecast to arrive on Thursday (Aug 13) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Tuesday (Aug 18) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Sat 15th Aug)13ft (4.0m) 15s
Best Surf10AM (Sat 15th Aug)13ft (4.0m) 15s
Most Powerful 7AM (Thu 13th Aug)18ft (5.5m) 16s

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


The Lowdown

Alright, folks, Rusty here. Let’s get into it. We’re looking at the next 16 days for Johanna, and it’s a tale of two very different halves. The first week is a write-off, but the second week has some serious potential if you’re willing to wait.

The forecast kicks off with a big, powerful, and messy swell. Wednesday the 12th through to the weekend of the 16th and 17th is pretty much a no-go. We’ve got a solid southwest swell running, with wave heights between 10ft and 16ft and combined energy readings that are well into the strong to very strong range (peaking at 12,932 on Thursday morning). The problem is the wind. It’s howling out of the west and southwest, smashing the surface up with cross-onshore and choppy conditions. This is a classic case of "look, don't paddle." With that much swell and wind, this setup is honestly more interesting for kite surfing than paddle surfing. The water temp is about average for the time of year, nothing to write home about.

The real story starts Monday the 17th. The swell drops to a much more manageable 7ft to 8ft, and more importantly, the wind swings offshore. We’re talking light to gentle breezes from the northeast and east-northeast, which is the sweet spot for Johanna. The combined energy is still moderate (around 2,200 to 3,000), but the quality is excellent for experienced surfers. The swell direction is from the southwest, which is the optimum direction for this point. The period is a long 14 to 16 seconds, meaning proper groundswell energy coming through. This is the standout block of the next fortnight.

Tuesday the 18th and Wednesday the 19th keep the good times rolling. The swell holds around 7ft but drops to a more user-friendly 3ft to 4ft by Wednesday afternoon. The wind stays clean and offshore, with the combined energy dropping to a light 596. This is "expect very good surf conditions" territory. Crowds are often here, so get in early.

We get a brief resurgence on Thursday the 20th with a nice 4ft groundswell and a 16-second period under offshore winds. The energy is moderate (1,104), and the conditions are excellent. Friday the 21st through Saturday the 22nd sees a bit of a bump in swell to 7ft, but the wind picks up from the northwest, making it choppy and marginal. The longer-range outlook from the 23rd onwards has a massive 20-second period swell hitting on Sunday the 23rd, with 8ft waves and glassy conditions. That’s a standout for the experts, with exceptional conditions and a combined energy of 5,143. The final few days of the forecast show a return to big, powerful swells, but with clean or offshore winds, so the experts will have plenty to play with, though the size will be for the experienced crew only.

Signing off, Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Wed afternoon. Very mild (max 13°C on Thu morning, min 11°C on Wed morning). Winds decreasing (fresh winds from the W on Wed morning, light winds from the SSW by Fri night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Mon morning, min 11°C on Sun afternoon). Wind will be generally light.

Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
7
7
6
6
8
7
4
4
4
3
4
3
3
5
4
4
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
4
WSW
16
4.5
WSW
17
5
SW
16
5
SW
16
5
SW
16
5
SW
16
4.5
SW
16
4.5
SW
15
4.5
SW
15
4
SW
15
3.5
SW
15
3
SW
14
3
SW
14
3
SW
14
2.5
SW
14
2.4
WSW
15
2.5
WSW
16
2.4
WSW
15
1.9
WSW
14
2
WSW
16
1.7
WSW
15
Wave Graph
Metric surfscale
Energy kJ
8719
10378
12237
13339
11405
12300
9925
8905
9286
6997
5716
4135
3569
3013
2487
2578
3329
2378
1291
1982
1288
Wind (km/h)
30
W
30
W
25
W
25
W
20
W
20
W
20
WSW
15
WSW
10
SW
5
SSE
10
SSE
10
SE
15
ESE
15
ESE
15
ENE
20
E
20
ESE
10
NE
20
NNE
15
N
20
N
Wind State
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
glassy
cross-on
cross
cross
cross
cross-off
cross-off
cross
off
off
off
cross-off
High Tide
11:50AM0.44m
8:36PM0.31m
12:22PM0.46m
11:06PM0.34m
12:50PM0.47m
00:20AM0.39m
1:16PM0.48m
1:15AM0.43m
1:42PM0.48m
2:02AM0.46m
2:07PM0.48m
2:44AM0.47m
2:31PM0.47m
3:23AM0.47m
Low Tide
6:54PM0.31m
4:35AM0.08m
6:37PM0.26m
5:44AM0.07m
6:59PM0.20m
6:37AM0.07m
7:27PM0.14m
7:22AM0.08m
7:56PM0.09m
8:02AM0.11m
8:26PM0.05m
8:38AM0.13m
8:56PM0.03m
part cloud
rain showers
rain showers
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:16
7:16
7:15
7:13
7:11
7:11
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:46
5:47
5:49
5:50
5:51
 mm
2
1
Temp °C
12
12
12
13
13
12
13
13
11
13
13
13
14
13
12
15
14
14
17
17
13
Feels °C
6
6
6
8
8
8
9
9
7
10
9
11
11
10
9
11
10
11
13
14
9
  • 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 Johanna Surf forecast

The above surf forecast table for Johanna provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Johanna can be found by selecting the local surf guide option on the grey menu. Our Johanna 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 (Johanna) 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 Johanna 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.

Johanna is 93 km (58 miles) from the city of Warrnambool. If you plan a holiday in Far West of Victoria, look for hotels and other accommodation in Warrnambool. Warrnambool has rooms for a wide range of budgets as well as car hire and transport links.

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