Surf Forecasts:
Johanna surf forecast from 17 Aug 2026:
- Best quality surf: Sunday 23 Aug, 10PM (local time) - 10ft (3.0m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Saturday 22 Aug, 1PM (local time) - 15ft (4.5m), 16s period, SW swell with 10,377 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 7AM (local time) - 7ft (2.1m), 14s 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 Tuesday (Aug 18) at 7AM. The primary swell is predicted to be 2.1m and 14s period with a secondary swell of 1.1m 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 16s 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 1.5m 8s period and expected on Wednesday (Aug 19) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Tue 18th Aug) | 7ft (2.1m) 14s |
| Best Surf | 10PM (Sun 23rd Aug) | 10ft (3.0m) 16s |
| Most Powerful | 1PM (Sat 22nd Aug) | 15ft (4.5m) 16s |
Table - best surf conditions forecast for Johanna over the next 16 days.
The Lowdown
G’day, Rusty here. We’ve got a solid run of swell on the way for Johanna, a beach and point setup that’s exposed to the south and handles a good size. It’s a very consistent break, and the water temp is sitting at 57°, pretty much normal for this time of year.
The first real standout kicks off Tuesday the 18th of August. Tuesday morning sees a 7ft WSW swell with a 14-second period – proper groundswell – and a nice NE offshore breeze. That’s clean, lined-up surf for experienced crew. The combined energy is strong at 2150. Tuesday afternoon holds similar goodness: 6ft from the WSW, 14 seconds, still offshore from the NNE. Glassy, clean conditions make this the pick of the early window.
Wednesday 19th drops off a bit. Swell backs down to 4ft, and though the wind is offshore from the north, it’s stronger at 16 mph and the energy drops to 665. Still clean, but not the same quality.
Now, look ahead to Monday the 31st of August – this is a serious standout. Monday morning goes glassy with an ESE breeze so light it’s almost nothing, and a long-period 19-second SW groundswell at 6ft. The energy is 4209 – strong, deep power. That’s exceptional, clean surf for experienced surfers. Monday afternoon is still good with a 6ft SW swell, 19 seconds, but a gentle cross-shore kicks in.
September 1st, Tuesday, is another absolute highlight. Both morning and afternoon have offshore winds from the north at 9 mph, with a 7ft to 8ft SW swell, 16-second period, and energy around 3000-3600. Clean, powerful, lined-up waves. This is the best on offer across the whole outlook.
There’s a gap mid-period – from Thursday 20th into the weekend – where conditions get messy with strong cross-onshore winds and lumpy 10ft to 13ft swell. Not worth paddling out unless you’re chasing a beating. The surf picks up again cleaner from Monday 24th onwards, but the real magic is that late August and early September window.
Crowds are often at Johanna, so expect company during these peak windows. But with this quality, it’s worth sharing the lineup.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Wed morning. Very mild (max 18°C on Tue morning, min 10°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri night. Very mild (max 14°C on Fri morning, min 10°C on Sat night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | WSW 14 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 14 | W 11 | W 13 | WSW 12 | WSW 15 | WSW 14 | WSW 16 | WSW 16 | SW 16 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1809 | 1349 | 947 | 665 | 693 | 594 | 1769 | 2508 | 2124 | 2010 | 3408 | 7806 | 9873 | 10011 | 7276 | 4615 | 5526 | 3561 | 2350 | 1759 | 1326 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-on | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:31PM0.47m | 3:23AM0.47m | 2:54PM0.46m | 4:01AM0.46m | 3:14PM0.44m | 4:39AM0.43m | 3:32PM0.42m | 5:21AM0.40m | 3:44PM0.40m | 6:18AM0.37m | 3:45PM0.38m | 8:21AM0.35m | 3:02PM0.36m | ||||||||
Low Tide | 8:56PM0.03m | 9:10AM0.17m | 9:25PM0.03m | 9:40AM0.20m | 9:54PM0.04m | 10:08AM0.24m | 10:23PM0.06m | 10:32AM0.28m | 10:54PM0.09m | 10:54AM0.31m | 11:32PM0.11m | 11:04AM0.35m | 00:31AM0.14m | ||||||||
 |  |  |  |  | | | | | | |  | | |  | | |  | | | | |
 | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — |
 | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — |
mm | — | — | — | 3 | 2 | — | — | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | 1 |
Temp °C | 18 | 18 | 15 | 14 | 15 | 13 | 16 | 13 | 12 | 14 | 13 | 12 | 14 | 13 | 11 | 13 | 13 | 11 | 14 | 14 | 12 |
Feels °C | 14 | 15 | 11 | 9 | 11 | 8 | 10 | 8 | 7 | 9 | 8 | 7 | 9 | 8 | 7 | 10 | 9 | 8 | 11 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 14 | W 10 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 16 | SW 24 | SW 16 | SW 14 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 |
| kJ | 1809 | 1349 | 947 | 665 | 693 | 594 | 1224 | 464 | 843 | 2010 | 3408 | 7806 | 87 | 10011 | 7276 | 4615 | 5526 | 3561 | 2350 | 1759 | 1326 |
Swell 2 Height (m) Direction Period (s) | SW 18 | — | — | — | ENE 6 | WSW 19 | WSW 13 | E 7 | SW 15 | WSW 19 | WSW 18 | — | — | SW 22 | SW 20 | SW 18 | — | — | WSW 21 | SW 20 | WSW 18 |
| kJ | 341 | — | — | — | 42 | 248 | 732 | 1 | 849 | 904 | 1118 | — | — | 372 | 634 | 1342 | — | — | 44 | 97 | 211 |
Swell 3 Height (m) Direction Period (s) | ESE 6 | — | — | — | — | ENE 5 | WSW 18 | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 4 |
| kJ | 42 | — | — | — | — | 3 | 395 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | ENE 5 | NE 5 | NW 6 | W 8 | W 11 | W 13 | WSW 12 | WSW 11 | — | — | WSW 16 | — | — | — | — | — | — | — | NNW 3 |
| kJ | 64 | 61 | 49 | 67 | 75 | 539 | 1769 | 2508 | 2124 | 1207 | — | — | 9873 | — | — | — | — | — | — | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 194 | 39 | 41 | 41 | 22 | 21 | 39 | 21 | 55 | 21 | 21 | 21 | 18 | 21 | 0 | 0 | 0 | 0 |
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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