
Surf Forecasts:
Johanna surf forecast from 12 Sep 2026:
- Best quality surf: Saturday 12 Sep, 1PM (local time) - 11ft (3.5m), 15s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 15 Sep, 7PM (local time) - 16ft (5.0m), 14s period, SW swell with 10,299 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 1PM (local time) - 11ft (3.5m), 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 (Sep 12) at 1PM. The primary swell is predicted to be 3.5m 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 5.0m 14s and forecast to arrive on Tuesday (Sep 15) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (Sep 18) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sat 12th Sep) | 11ft (3.5m) 15s |
| Best Surf | 1PM (Sat 12th Sep) | 11ft (3.5m) 15s |
| Most Powerful | 7PM (Tue 15th Sep) | 16ft (5.0m) 14s |
Table - best surf conditions forecast for Johanna over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at what’s cookin’ down at Johanna. This stretch of coastline is about to get absolutely hammered by some serious SW groundswell for the next couple of weeks, so if you’ve got a big wave board, now’s the time to dust it off.
The pattern is straightforward: a massive pulse of long-period SW swell arrives in a couple of days, and it just keeps on giving with multiple reinforcements. The water temperature is about 57°, which is pretty much average for the time of year, so you’ll want a decent wettie.
We’ve got a bit of a dry spell right now, but the action kicks off this Saturday, September 12th. Saturday morning, the swell is already a solid 12 ft from the SW with a 15-second pulse and crazy energy levels (5603). The wind is a light cross-off from the NNW, so it’ll be clean and lined up. This is proper, heavy groundswell – expert territory for sure, but the quality is unreal. Saturday afternoon gets even better: the wind drops to glassy, dead calm, with 10 ft of clean SW swell. That afternoon session is the standout of the first week, no question. Just keep in mind that crowds are often a thing here, so get out early.
Sunday the 13th sees the swell ease a bit to 8 ft, but the wind on Sunday morning is a fresh 19 mph cross-off from the north. It’s still clean, but that wind is howling, making it a bit of a battle to get out.
We hit a rough patch from Monday the 14th through Wednesday the 16th as the wind turns onshore or cross-shore and the quality drops out. Monday is a write-off with weak, short-period windswell. Tuesday is downright nasty: 15 ft to 16 ft of SW swell but with rain and strong onshore winds – that’s blown out and dangerous. Wednesday is a similar story, with big 16 ft swell and cross-onshore winds making for a choppy mess. There’s some serious wave energy in the water (over 9000 on Tuesday and Wednesday), but the conditions are terrible for a paddle. Honestly, with that wind and swell, a kite would have a better time than a surfboard.
Things clean up on Thursday the 17th, but the swell is still a heavy 12 ft, and the wind goes light onshore. Not ideal.
Now, here’s where it gets interesting for the real chargers. Look ahead to Tuesday, September 22nd. Tuesday morning is forecast to be *glassy* with an easterly breeze, and a massive 20 ft SW groundswell with 16-second period and an insane energy reading of 18715. That is a truly colossal, very long-period groundswell. It’s predicted to be too big for this break, so only the absolute elite need apply. It’s a promise of something epic, but that far out, take it with a pinch of salt.
Sunday, September 27th, is another one to circle on the calendar. Sunday morning looks like a gem: 13 ft of clean SW groundswell with a 16-second period and a light offshore breeze from the NNE. The energy is massive (8773), and the conditions are clean. That afternoon, it gets even bigger at 15 ft with a 17-second period and 12353 energy, with a favourable cross-off wind. Another absolute standout for experts, and a great way to close out the forecast window.
So, to boil it down: the absolute best windows are Saturday afternoon September 12th for a glassy, powerful session, and then Sunday morning September 27th for another clean, heavy groundswell day. The 22nd is a monster swell but far out and maybe too big even for Johanna.
Stay safe out there, and don't even think about paddling out on the Tuesday or Wednesday after this weekend unless you're on a gun and a whole different level.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Warm (max 23°C on Sun morning, min 10°C on Mon night). Winds increasing (calm on Sat morning, fresh winds from the WSW by Mon night). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Tue morning. Very mild (max 11°C on Tue morning, min 7°C on Thu night). Winds decreasing (fresh winds from the SW on Tue afternoon, light winds from the W by Thu afternoon). | ||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||
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 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | WSW 8 | SW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 14 | SW 17 | WSW 15 |
Wave Graph | |||||||||||||||||||||
5603 | 4480 | 3135 | 2390 | 2226 | 1321 | 732 | 509 | 452 | 7497 | 9381 | 9735 | 9540 | 9103 | 7127 | 4247 | 2817 | 2187 | 1705 | 4243 | 4230 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | on | on | cross-on | on | on | on | cross-on | cross-off | cross-off | cross | cross-off |
High Tide | 12:17PM0.43m | 00:30AM0.44m | 12:42PM0.44m | 1:11AM0.48m | 1:07PM0.45m | 1:48AM0.50m | 1:31PM0.45m | 2:22AM0.51m | 1:55PM0.44m | 2:55AM0.50m | 2:17PM0.43m | 3:27AM0.48m | 2:38PM0.42m | 3:59AM0.45m | |||||||
Low Tide | 6:25PM0.14m | 6:38AM0.12m | 6:52PM0.09m | 7:16AM0.13m | 7:20PM0.05m | 7:50AM0.14m | 7:48PM0.02m | 8:21AM0.15m | 8:16PM0.01m | 8:49AM0.18m | 8:44PM0.02m | 9:15AM0.20m | 9:11PM0.04m | ||||||||
6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | |
— | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:17 | — | |
mm | — | — | — | — | — | — | — | — | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 19 | 15 | 23 | 21 | 17 | 14 | 14 | 13 | 11 | 10 | 11 | 11 | 11 | 11 | 11 | 11 | 8 | 18 | 19 | 14 |
Feels °C | 17 | 18 | 13 | 18 | 17 | 15 | 11 | 10 | 9 | 3 | 2 | 3 | 5 | 6 | 6 | 8 | 8 | 6 | 12 | 15 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | WSW 12 | — | — | — | SW 14 | SW 15 | SW 15 | SW 14 | SW 13 | SW 13 | SW 14 | SW 17 | WSW 15 |
5603 | 4480 | 3135 | 2390 | 2226 | 1321 | 732 | 509 | 325 | — | — | — | 9540 | 9103 | 7127 | 4247 | 2817 | 2187 | 1705 | 4243 | 4230 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | NE 4 | S 10 | SW 19 | SW 19 | SW 18 | — | — | — | — | — | — | — | W 24 | SW 22 | SW 18 | — | — |
— | — | — | — | 4 | 54 | 96 | 90 | 249 | — | — | — | — | — | — | — | 11 | 73 | 831 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | S 10 | — | W 12 | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | 17 | — | 12 | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | N 4 | NW 4 | NE 4 | WNW 4 | W 5 | WSW 8 | SW 14 | SW 14 | SW 14 | — | — | — | — | — | — | WNW 4 | — | — |
— | — | — | 12 | 7 | 7 | 16 | 57 | 452 | 7497 | 9381 | 9735 | — | — | — | — | — | — | 21 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 39 | 18 | 0 | 21 | 21 | 22 | 569 | 712 | 287 | 287 | 262 | 21 | 21 | 21 | 0 | 39 | 21 | 18 |
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.










