Surf Forecasts:
Johanna surf forecast from 4 Sep 2026:
- Best quality surf: Wednesday 9 Sep, 10AM (local time) - 16ft (5.0m), 16s period, SW swell with onshore winds.
- Most powerful swell: Wednesday 9 Sep, 4PM (local time) - 20ft (6.0m), 19s period, SW swell with 24,773 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 10PM (local time) - 7.5ft (2.3m), 13s 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 Monday (Sep 07) at 10PM. The primary swell is predicted to be 2.3m and 13s period with a secondary swell of 1.1m and 20s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Johanna in the next 16 days are 6.0m 19s and forecast to arrive on Wednesday (Sep 09) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 6s period and expected on Saturday (Sep 05) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 7th Sep) | 7.5ft (2.3m) 13s |
| Best Surf | 10AM (Wed 9th Sep) | 16ft (5.0m) 16s |
| Most Powerful | 4PM (Wed 9th Sep) | 20ft (6.0m) 19s |
Table - best surf conditions forecast for Johanna over the next 16 days.
The Lowdown
Righto. Let’s get into it.
So, we’ve got one spot on the radar that’s going to be the main event for this whole stretch – Johanna. This is a very consistent, exposed beach and point setup, and it’s best when the swell comes from the south. Water temp’s sitting around 57°, which is about normal for this time of year.
First off, there’s nothing really doing until the afternoon of Thursday the 4th of September. That afternoon sees the first proper pulse arrive: a solid 16ft SW groundswell with a long 16-second period. The energy is considerable (12219), and with a light cross-offshore from the NNW, the conditions should be clean. This will be a big, powerful wave – definitely one for experienced surfers only.
Friday the 5th, things get a bit messy. The swell holds up at 13ft to 16ft (WSW), but the wind is climbing. The morning is still rideable with an 19 mph cross-off, but by the afternoon a 25 mph westerly cross-shore wind chops it right up. That afternoon session is a write-off.
The weekend (6th and 7th September) drops off, with the swell settling to 7ft to 12ft, but the wind is swinging onshore or cross-on, making conditions choppy. Not worth the paddle.
Now, here’s the standout. Wednesday the 9th and Thursday the 10th of September. This is the big one. The wave energy jumps back up – 15352 on the Wednesday morning, peaking at a massive 24773 on the Wednesday afternoon, driven by a huge 20ft SW groundswell with a very long 19-second period. The wind is blowing pure offshore from the SSW, 16 to 19 mph. It’s clean, powerful, and pushing a lot of water. The report flags that the swell is predicted to be too big for this break – and it means it. This is a serious big-wave session. Only for experts. The 10th holds similar size (16ft – 18ft) with light offshore winds, still world-class and heavy.
Sunday the 13th offers a smaller window – 8ft to 10ft SW swell with a clean offshore or glassy wind, giving excellent conditions for experienced surfers. A good option if you missed the big one.
From the 14th onwards, the energy fades quickly. A few small pulses around 3ft to 5ft with mostly onshore or messy winds. Not worth getting excited about. There is a little blip on the 19th of September, a glassy 10ft SW swell on Saturday morning (4234 energy) that looks nice for experienced surfers, and the afternoon picks up to 15ft but with a side-on breeze.
So the call is clear: your best bet is the 9th and 10th of September at Johanna. It’s heavy, it’s clean, and it’s the true standout. Be prepared for a serious session.
Rusty
Short Range ForecastModerate rain (total 14mm), heaviest on Fri night. Very mild (max 15°C on Fri night, min 11°C on Sat afternoon). Winds decreasing (strong winds from the WNW on Sat afternoon, light winds from the S by Mon morning). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Very mild (max 13°C on Tue morning, min 6°C on Mon night). Winds increasing (calm on Mon night, fresh winds from the SSW by Tue night). | |||||||||||||||||||
Fri 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 16 | WSW 15 | WSW 15 | SW 10 | SW 14 | WSW 13 | WSW 12 | SW 13 | SW 13 | SW 19 | SW 18 | SW 17 | SW 16 | SW 16 | SW 19 | SW 18 | SW 17 | SW 16 | SW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 12219 | 9410 | 6569 | 10465 | 4864 | 4097 | 3902 | 2244 | 1246 | 1558 | 1365 | 2402 | 5457 | 5360 | 11897 | 24773 | 23809 | 18145 | 13184 | 8542 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross-on | on | on | glassy | cross | cross-on | cross-on | on | on | on | on | on | on |
High Tide | 4:19AM0.47m | 3:00PM0.43m | 5:07AM0.43m | 3:19PM0.42m | 6:12AM0.39m | 3:36PM0.40m | 8:14AM0.37m | 3:33PM0.37m | 10:43AM0.38m | 11:24AM0.40m | 10:19PM0.32m | |||||||||
Low Tide | 9:23PM0.00m | 9:49AM0.25m | 9:58PM0.01m | 10:16AM0.29m | 10:39PM0.04m | 10:47AM0.33m | 11:32PM0.08m | 11:53AM0.35m | 00:58AM0.12m | 3:17AM0.14m | 5:45PM0.26m | |||||||||
 |  |  | | | |  |  |  | |  | | |  | | | | | | | |
 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — |
 | 6:06 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — |
mm | — | 7 | 2 | 2 | 3 | — | — | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — |
Temp °C | 14 | 15 | 14 | 12 | 12 | 13 | 13 | 12 | 11 | 11 | 8 | 13 | 12 | 11 | 11 | 11 | 11 | 11 | 10 | 10 |
Feels °C | 10 | 10 | 8 | 4 | 4 | 10 | 9 | 7 | 6 | 8 | 6 | 9 | 7 | 5 | 3 | 4 | 5 | 7 | 6 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | WSW 15 | — | — | SW 14 | WSW 13 | WSW 12 | SW 13 | SW 13 | SW 12 | SW 13 | SW 17 | SW 16 | SW 21 | SW 19 | SW 18 | SW 17 | SW 16 | SW 15 |
| kJ | 12219 | 9410 | 6569 | — | — | 4097 | 3902 | 2244 | 1246 | 1558 | 1336 | 1750 | 5457 | 5360 | 3455 | 24773 | 23809 | 18145 | 13184 | 8542 |
Swell 2 Height (m) Direction Period (s) | — | — | NE 5 | — | — | W 15 | SW 18 | SW 24 | W 11 | SW 21 | SW 19 | SW 18 | — | SW 26 | — | — | — | — | — | — |
| kJ | — | — | 16 | — | — | 1262 | 82 | 22 | 369 | 341 | 1365 | 2402 | — | 27 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | W 11 | — | SW 24 | SW 22 | SW 20 | SW 14 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 184 | — | 22 | 118 | 335 | 466 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | WNW 6 | WSW 15 | SW 10 | — | — | WSW 6 | — | — | — | — | — | WSW 6 | SW 16 | — | — | — | — | — |
| kJ | — | — | 402 | 10465 | 4864 | — | — | 131 | — | — | — | — | — | 230 | 11897 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 18 | 39 | 380 | 548 | 365 | 21 | 21 | 21 | 604 | 21 | 0 | 18 | 21 | 22 | 604 | 365 | 262 | 262 | 151 | 21 |
Best forecast wave conditions in Far West of Victoria | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
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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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