Johanna Surf Break

Lat Long: 38.78° S 143.42° E

Johanna Surf Forecast and Surf Report

Issued: 3 am 09 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 8 Aug 2026:

  • Best quality surf: Monday 10 Aug, 4AM (local time) - 10ft (3.0m), 19s period, WSW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 12 Aug, 7PM (local time) - 15ft (4.5m), 17s period, WSW swell with 12,268 kJ wave energy.
  • Next surfable swell (1★+): Sunday 9 Aug, 1PM (local time) - 6ft (1.8m), 13s period with WSW 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 Sunday (Aug 09) at 1PM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 0.8m and 18s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Johanna in the next 16 days are 4.5m 17s and forecast to arrive on Wednesday (Aug 12) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Wednesday (Aug 12) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sun 9th Aug)6ft (1.8m) 13s
Best Surf 4AM (Mon 10th Aug)10ft (3.0m) 19s
Most Powerful 7PM (Wed 12th Aug)15ft (4.5m) 17s

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


The Lowdown

G’day, it’s Rusty. We’ve got a solid run of swell on the way for Johanna, but you’ll need to pick your moments – the wind’s going to be the real story here. This is a long, consistent window of southwest groundswell, but a lot of it will be blown out by onshore or cross-onshore breezes. The real standouts are the mornings with clean offshore or cross-offshore wind. The water’s sitting at 57.4°, which is pretty much spot on for this time of year, so nothing unusual there.

The first surf worth getting excited about kicks off on Sunday morning, August 9th. The swell is 6.2 ft from the WSW with a 13-second period, which is a nice long-period groundswell already. The combined energy is a solid 1729 (moderate). Wind is NNE at 16 mph and offshore – that’s clean. Conditions are marginal for tide reasons, but it’s rideable. By afternoon it drops a touch to 5.2 ft but still clean.

Monday, August 10th, is where things get heavy. Early morning you’ve got 9.8 ft of WSW swell with an 18-second period – that’s a very long period groundswell, full of power. The combined energy hits 6359 (strong). Wind is NW at 6 mph, cross-offshore and clean. This is exceptional for experts only – over 8.2 ft means it’s for the experienced crew. By afternoon the wind swings SW and goes onshore at 19 mph, turning it into a messy, poor mess. So, early bird catches the wave.

Tuesday, August 11th, stays solid: 9.8 ft in the morning dropping to 8.2 ft in the afternoon, both with NW/NNW cross-offshore winds at 12-16 mph. Period is 14 seconds, energy is in the 3300s (strong). Clean and consistent, but still big – intermediate and above only.

Wednesday, August 12th, gets even bigger. Morning has 13.1 ft from the WSW, 16-second period, combined energy 9002 (very strong). Wind is W at 19 mph, cross-shore, so it’s lumpy but rideable for the brave. Afternoon sees 14.8 ft and onshore wind – forget it.

Thursday, August 13th, holds 16.4 ft swells from the SW, 15-second period, energy over 10000 (very strong). Cross-shore winds in the morning, lumpy, and cross-shore in the afternoon – these are big, powerful waves for experts only.

Friday, August 14th, stays big at 14.8 ft, but the wind is cross-onshore from the WSW at 12 mph. Choppy and messy. Not the best.

Saturday, August 15th, the swell drops to 13.1 ft in the morning and 11.5 ft in the afternoon, with light ESE winds. Cross-shore in the morning, cross-onshore in the afternoon. Better, but still big.

Sunday, August 16th, things start to clean up. Morning has 8.2 ft from the WSW, 14-second period, and a beautiful light east wind that’s cross-offshore. Combined energy 3212 (strong). This is excellent for experienced surfers – clean, solid, and manageable.

Monday, August 17th, similar: 7.9 ft, 15-second period, ENE cross-offshore at 6 mph. Clean and excellent for experienced surfers.

Tuesday, August 18th, is a gem. Morning has 6.9 ft from the WSW, 14-second period, ENE cross-offshore. Afternoon bumps to 7.5 ft with an 18-second period – that’s a long-period groundswell, cross-offshore from the east. Both sessions are excellent for experienced surfers. This is one of the best windows in the whole outlook.

Wednesday, August 19th, keeps the run going: 7.9 ft in the morning, 7.5 ft in the afternoon, both with offshore or cross-offshore winds from the north-northeast to northeast. Clean and excellent.

Thursday, August 20th, the swell drops to 5.6 ft in the morning and 4.3 ft in the afternoon. Wind is north at 16 mph, offshore. Combined energy drops to 994 (weak) and 1505 (moderate). Still clean, but smaller.

From Friday, August 21st, through Monday, August 24th, the swell stays between 5.2 ft and 8.2 ft, but the wind is mostly cross-shore or onshore, and the scores drop off. There’s still surf, but it’s not the clean, standout quality of the previous week.

The absolute best of this whole run? Tuesday, August 18th – both morning and afternoon. Clean cross-offshore winds, solid 6.9 ft to 7.5 ft swell with a long 14-18 second period from the WSW. Combined energy in the 3000s. That’s the one to circle. And Monday, August 10th morning, for the big-wave hunters – 9.8 ft, 18 seconds, clean. That’s a proper session.

Keep in mind, this is a beach and point setup at Johanna, exposed to the south swell, and it can get crowded often. The long-period swells here can be a bit straight at the beach, but the point will handle

Short Range Forecast

Heavy rain (total 29mm), heaviest during Mon morning. Very mild (max 13°C on Mon morning, min 9°C on Mon morning). Winds increasing (light winds from the E on Sun night, fresh winds from the SW by Mon afternoon).

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Wed afternoon. Very mild (max 13°C on Thu morning, min 11°C on Wed morning). Winds decreasing (fresh winds from the WSW on Wed afternoon, light winds from the SE by Fri night).

Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
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
3
5
7
0
0
4
4
3
6
0
0
7
6
7
6
6
8
6
4
5
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
WSW
13
1.6
WSW
13
1.9
WSW
19
3
WSW
18
3
WSW
17
2.5
WSW
16
3
WSW
14
2.5
WSW
14
2.5
SW
16
4
WSW
16
4.5
WSW
17
5
SW
16
5
SW
15
5
SW
15
4.5
SW
15
4.5
SW
16
4.5
SW
16
4
SW
15
4
SW
15
3.5
SW
15
3
SW
15
Wave Graph
Metric surfscale
Energy kJ
1243
850
2627
6324
5533
3460
3496
2847
3304
8610
11702
11113
10052
10619
8736
11070
10667
8152
6559
5520
4284
Wind (km/h)
25
NNE
25
NNE
5
E
10
NW
30
SW
25
W
20
NW
25
NNW
25
NNW
30
W
35
WSW
25
WSW
20
W
25
WNW
20
WNW
20
WSW
20
WSW
10
WSW
10
ESE
10
SE
5
E
Wind State
off
off
cross-off
cross-off
cross-on
cross-on
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross
cross
cross
cross-on
cross-on
cross-on
cross
cross-on
cross-off
High Tide
3:59PM0.40m
8:49AM0.39m
3:58PM0.39m
11:00AM0.42m
11:50AM0.44m
8:36PM0.31m
12:22PM0.46m
11:06PM0.34m
12:50PM0.47m
00:20AM0.39m
1:16PM0.48m
1:15AM0.43m
Low Tide
11:21AM0.34m
00:02AM0.05m
12:36PM0.37m
1:17AM0.07m
3:00AM0.08m
6:54PM0.31m
4:35AM0.08m
6:37PM0.26m
5:44AM0.07m
6:59PM0.20m
6:37AM0.07m
7:27PM0.14m
light rain
light rain
mod rain
rain showers
rain showers
rain showers
part cloud
cloud
rain showers
part cloud
rain showers
rain showers
rain showers
rain showers
part cloud
rain showers
cloud
rain showers
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:18
7:18
7:16
7:16
7:15
7:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:43
5:44
5:45
5:45
5:45
5:46
5:47
 mm
4
1
9
8
3
1
3
4
1
1
2
1
1
Temp °C
11
12
12
13
13
12
13
13
11
12
11
12
13
13
12
13
12
12
12
11
9
Feels °C
5
7
9
9
8
6
7
8
5
5
4
6
8
8
8
8
7
9
9
8
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 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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