Surf Forecasts:
Johanna surf forecast from 21 Aug 2026:
- Best quality surf: Sunday 23 Aug, 1AM (local time) - 15ft (4.5m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 22 Aug, 1PM (local time) - 16ft (5.0m), 14s period, SW swell with 10,892 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 1AM (local time) - 15ft (4.5m), 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 Sunday (Aug 23) at 1AM. The primary swell is predicted to be 4.5m and 14s period with a secondary swell of 1.0m 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 14s and forecast to arrive on Saturday (Aug 22) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Friday (Aug 28) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Sun 23rd Aug) | 15ft (4.5m) 14s |
| Best Surf | 1AM (Sun 23rd Aug) | 15ft (4.5m) 14s |
| Most Powerful | 1PM (Sat 22nd Aug) | 16ft (5.0m) 14s |
Table - best surf conditions forecast for Johanna over the next 16 days.
The Lowdown
Alright, mate, Rusty here. Let’s get into it.
The long-range picture for this stretch is a proper mixed bag. We’ve got some serious energy pulsing through at times, but it’s going to take a bit of patience to line up the winds. Right now, it’s grim – Saturday the 22nd is a big fat write-off with a solid 16.4ft of WSW swell, but a strong cross-onshore breeze is going to have it chopped to bits. Not worth getting wet.
Sunday the 23rd is where the turn starts. The swell drops to a still-chunky 11.5ft from the SW, but a light cross-offshore breeze from the NNW is the key. This is clean, powerful surf – the kind that gets the heart rate up. This is for experienced surfers, though; that size at Johanna (Great Ocean Road) is no joke. The energy is still strong, reading 6142 in the combined energy, and it’s solid groundswell with a 14-second period. Sunday morning is the clear winner for the week.
We’ve got a bit of a lull from Monday the 24th through Wednesday the 26th. The swell backs down to the 6.9ft to 9.8ft range, and while there are windows of clean conditions – Monday afternoon is glassy with a 7.9ft SW swell – it’s more about picking smaller windows. Not the main event.
Thursday the 27th sees a small, clean morning wave at 3.9ft, but the real standout is Friday the 28th. Overnight, the swell jumps back up. Friday morning brings a powerful 11.5ft WSW groundswell with a long 17-second period and a light cross-offshore breeze. This is the one to circle. The energy reads 7339 and the comment says it all: exceptional for experts. This is a proper day at Johanna, with clean, heavy lines stacking up. The afternoon gets messy as the wind swings onshore, so it’s a morning mission.
The weekend after is a write-off again. Saturday the 29th has building onshore winds and poor conditions. But hold on, because Sunday the 30th is another big one. The swell is back up to 14.8ft to 16.4ft from the SW, with the energy reading a massive 11899 and 14043. The wind is light, but it’s cross-onshore, so it won’t be perfect. Still, for the experts out there, that’s a lot of water moving. It’s going to be a beast.
Monday the 31st has a promising glassy morning with an 11.5ft SW swell, which is excellent before the wind picks up. Then we slide into a more mixed bag for the first week of September. Tuesday the 1st gets blown out in the afternoon. The following days have some fun, clean windows – like Thursday the 3rd and Saturday the 5th – but the size drops and the consistency wavers. The standout from this second week is, without doubt, Friday the 28th of August. It has everything: size, power, offshore wind, and a long period. Sunday the 30th is also a huge day but the wind will be the letdown. For the average punter, the clean, solid 11.5ft day on Sunday the 23rd is your best bet for a proper, rippable session.
Alright, that’s it from me. Stay safe out there.
Short Range ForecastModerate rain (total 10mm), heaviest on Mon night. Very mild (max 16°C on Mon morning, min 6°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Thu night. Very mild (max 17°C on Thu afternoon, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 14 | SW 13 | SW 13 | SW 12 | SW 14 | WSW 21 | WSW 18 | WSW 17 | WSW 16 | WSW 16 |
Wave Graph | |||||||||||||||||||||
10504 | 10558 | 7835 | 4508 | 6128 | 3644 | 2405 | 1952 | 2000 | 2392 | 2121 | 2285 | 1961 | 1659 | 961 | 1289 | 1849 | 8778 | 9139 | 6831 | 5662 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | glassy | cross-off | cross | cross | cross-on | glassy | on | off | cross-off | cross | cross-off | cross-on | on | on |
High Tide | 3:44PM0.40m | 6:18AM0.37m | 3:45PM0.38m | 8:21AM0.35m | 3:02PM0.36m | 11:53AM0.38m | 12:04PM0.41m | 12:21PM0.43m | 11:12PM0.29m | 12:39PM0.45m | 00:05AM0.34m | ||||||||||
Low Tide | 10:32AM0.28m | 10:54PM0.09m | 10:54AM0.31m | 11:32PM0.11m | 11:04AM0.35m | 00:31AM0.14m | 2:33AM0.16m | 4:25AM0.15m | 7:07PM0.25m | 5:27AM0.13m | 7:01PM0.22m | ||||||||||
7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | |
— | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:59 | — | — | 6:00 | — | |
mm | — | — | — | — | — | — | — | 2 | 8 | 8 | 1 | — | — | — | — | — | — | 8 | 2 | — | — |
Temp °C | 13 | 12 | 8 | 13 | 14 | 12 | 16 | 16 | 13 | 12 | 12 | 12 | 14 | 13 | 12 | 16 | 17 | 13 | 13 | 12 | 11 |
Feels °C | 7 | 7 | 5 | 9 | 11 | 8 | 14 | 15 | 11 | 11 | 11 | 11 | 13 | 12 | 11 | 13 | 14 | 10 | 8 | 8 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 14 | SW 13 | SW 13 | SW 12 | SW 14 | SW 13 | WSW 18 | WSW 17 | WSW 16 | WSW 16 |
10504 | 10558 | 7835 | 4508 | 6128 | 3644 | 2405 | 1952 | 2000 | 2392 | 2121 | 2285 | 1961 | 1659 | 961 | 1289 | 1435 | 8778 | 9139 | 6831 | 5662 | |
Swell 2 Height (m) Direction Period (s) | SW 24 | SW 22 | SW 20 | SW 18 | — | — | — | WSW 20 | WSW 18 | WSW 16 | WSW 16 | SSW 11 | ESE 5 | ESE 5 | SW 16 | WSW 23 | WSW 21 | — | — | — | — |
87 | 290 | 746 | 1634 | — | — | — | 37 | 126 | 717 | 915 | 435 | 9 | 8 | 208 | 207 | 1849 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 20 | — | — | — | ESE 5 | SW 18 | SW 18 | ESE 5 | SSW 12 | S 11 | — | — | — | — |
— | — | — | — | — | — | — | 37 | — | — | — | 17 | 12 | 111 | 5 | 30 | 41 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | E 3 | E 5 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | 5 | 28 | — | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 22 | 21 | 0 | 0 | 21 | 0 | 18 | 0 | 0 | 5 | 5 | 77 | 0 | 21 | 0 | 0 | 18 | 39 | 77 | 21 | 77 |
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.











