Surf Forecasts:
Johanna surf forecast from 15 Sep 2026:
- Best quality surf: Tuesday 22 Sep, 4PM (local time) - 15ft (4.5m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 22 Sep, 7AM (local time) - 16ft (5.0m), 16s period, SW swell with 11,922 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 1AM (local time) - 10ft (3.0m), 14s 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 Friday (Sep 18) at 1AM. The primary swell is predicted to be 3.0m and 14s period with a secondary swell of 0.8m and 20s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Johanna in the next 16 days are 5.0m 16s and forecast to arrive on Tuesday (Sep 22) at 7AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Friday (Sep 18) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Fri 18th Sep) | 10ft (3.0m) 14s |
| Best Surf | 4PM (Tue 22nd Sep) | 15ft (4.5m) 15s |
| Most Powerful | 7AM (Tue 22nd Sep) | 16ft (5.0m) 16s |
Table - best surf conditions forecast for Johanna over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's chat about what’s shaping up for the next couple of weeks. There's a bit of a quiet start, but some proper potential is on the horizon.
We've got a bit of a lull to kick things off. Tuesday the 15th is a total washout – rainy, windy, and messy. Leave the board in the car. Wednesday the 16th is about the ocean cleaning itself up. There's some serious SW groundswell in the water, around 16 feet with a 15-second period, and winds are swinging onshore from the south. The wave energy is strong (9805), but the conditions are still a bit iffy – this is a surf for the experienced crew who know the place. The water’s about 58°, which is a touch warmer than usual for this time of year.
Thursday the 17th drops off fast, down to about 12 feet and getting choppy. Not your day.
Now, Friday the 18th is where you want to pay attention. The swell is still solid at 12 feet from the SW with a long 17-second period, but the wind switches to a clean cross-off from the NW. The energy is still high (8495). This is a standout for the experienced crew – clean, powerful lines. That long period will make the waves a bit harder to read on the beach breaks, but they’ll look perfect with that offshore wind smoothing everything out. Crowds are often a thing here, so get there before the sun’s up.
Saturday the 19th and Sunday the 20th are smaller and not as clean, wind turning a bit messy. Energy is dropping off. By Monday the 21st, the wind is back onshore, and the quality is poor.
Next week, though. Tuesday the 22nd is another absolute standout. The swell pushes back up to a solid 16 feet from the SW (combined energy 11575), and we get gentle east winds making it nearly glassy. The afternoon session gets an exceptional rating for experts. This is big, long-period groundswell, so it’s going to unload – perfect for the reefs and points, but dangerous for everyone else.
Wednesday the 23rd sees the swell back down, but with glassy mornings – a nice little window for the advanced crew.
Then on Friday the 25th, we get a weird one: a 3 foot swell with a crazy 24-second period. That’s an ultra-long wave train, with excellent conditions predicted. Don’t sleep on the size, that energy (2553) will produce some clean, lined-up runners, best for a point or reef.
The last few days of September get messy again. The swell picks up but the wind stays heavy and onshore. The energy is very strong again, but it’s blown out.
To sum it up: The best on offer is Friday the 18th for a solid, clean swell with offshore winds, but the absolute standout for the big-wave chargers is Tuesday the 22nd – that’s the one to circle on your calendar.
Stay salty,
Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Tue morning. Very mild (max 12°C on Tue morning, min 5°C on Thu night). Winds decreasing (fresh winds from the SW on Tue afternoon, light winds from the WNW by Thu night). | Days 4-6 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 23°C on Sat morning, min 11°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
AM | 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 13 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 14 | SW 14 | SW 17 | SW 16 | SW 14 | WSW 13 | WSW 13 | WSW 12 | WSW 13 | SW 12 | WSW 10 | SW 12 | SW 13 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 7277 | 9842 | 10035 | 9805 | 9075 | 7233 | 4369 | 1973 | 3949 | 6262 | 4915 | 3954 | 3298 | 2591 | 1200 | 1550 | 706 | 1739 | 2764 | 4487 | 10010 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-on | on | on | cross |
High Tide | 1:31PM0.45m | 2:22AM0.51m | 1:55PM0.44m | 2:55AM0.50m | 2:17PM0.43m | 3:27AM0.48m | 2:38PM0.42m | 3:59AM0.45m | 2:56PM0.41m | 4:35AM0.42m | 3:09PM0.39m | 5:21AM0.38m | 3:12PM0.36m | ||||||||
Low Tide | 7:48PM0.02m | 8:21AM0.15m | 8:16PM0.01m | 8:49AM0.18m | 8:44PM0.02m | 9:15AM0.20m | 9:11PM0.04m | 9:39AM0.23m | 9:38PM0.06m | 10:02AM0.26m | 10:07PM0.09m | 10:24AM0.30m | 10:39PM0.13m | ||||||||
 | |  |  | | | |  | | | |  | | | | | |  | | | | |
 | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:18 | — | — |
 | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:17 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — |
Temp °C | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 11 | 7 | 19 | 20 | 16 | 23 | 23 | 18 | 19 | 15 | 13 | 11 | 12 | 10 |
Feels °C | 4 | 3 | 3 | 6 | 6 | 6 | 6 | 7 | 5 | 14 | 16 | 10 | 17 | 19 | 15 | 13 | 10 | 9 | 6 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | — | — | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SSW 14 | SW 14 | SW 17 | SW 16 | SW 14 | WSW 13 | WSW 13 | WSW 12 | NE 5 | SW 12 | WSW 15 | SW 12 | SW 13 | SW 16 |
| kJ | — | — | 10035 | 9805 | 9075 | 7233 | 4369 | 1973 | 3949 | 6262 | 4915 | 3954 | 3298 | 2591 | 1200 | 3 | 706 | 372 | 2764 | 4487 | 10010 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 14 | SW 20 | SW 17 | — | — | — | WSW 20 | SW 16 | NE 5 | WSW 16 | — | — | SW 16 | — |
| kJ | — | — | — | — | — | — | — | 1556 | 469 | 2233 | — | — | — | 38 | 260 | 9 | 179 | — | — | 1486 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ENE 5 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 13 | SW 14 | — | — | — | — | — | — | — | NW 5 | — | — | — | — | N 3 | WSW 13 | W 7 | WSW 10 | — | — | — |
| kJ | 7277 | 9842 | — | — | — | — | — | — | — | 49 | — | — | — | — | 3 | 1550 | 440 | 1739 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 569 | 655 | 287 | 262 | 262 | 21 | 55 | 21 | 0 | 21 | 21 | 41 | 41 | 21 | 18 | 41 | 22 | 55 | 151 | 151 | 5 |
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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