
Surf Forecasts:
Johanna surf forecast from 8 Aug 2026:
- Best quality surf: Monday 10 Aug, 4AM (local time) - 10ft (3.0m), 19s period, WSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 12 Aug, 7PM (local time) - 15ft (4.5m), 17s period, WSW swell with 12,268 kJ wave energy.
- Next surfable swell (1★+): Sunday 9 Aug, 1PM (local time) - 6ft (1.8m), 13s 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 Sunday (Aug 09) at 1PM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 0.8m 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 17s and forecast to arrive on Wednesday (Aug 12) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Wednesday (Aug 12) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sun 9th Aug) | 6ft (1.8m) 13s |
| Best Surf | 4AM (Mon 10th Aug) | 10ft (3.0m) 19s |
| Most Powerful | 7PM (Wed 12th Aug) | 15ft (4.5m) 17s |
Table - best surf conditions forecast for Johanna over the next 16 days.
The Lowdown
G’day, it’s Rusty. We’ve got a solid run of swell on the way for Johanna, but you’ll need to pick your moments – the wind’s going to be the real story here. This is a long, consistent window of southwest groundswell, but a lot of it will be blown out by onshore or cross-onshore breezes. The real standouts are the mornings with clean offshore or cross-offshore wind. The water’s sitting at 57.4°, which is pretty much spot on for this time of year, so nothing unusual there.
The first surf worth getting excited about kicks off on Sunday morning, August 9th. The swell is 6.2 ft from the WSW with a 13-second period, which is a nice long-period groundswell already. The combined energy is a solid 1729 (moderate). Wind is NNE at 16 mph and offshore – that’s clean. Conditions are marginal for tide reasons, but it’s rideable. By afternoon it drops a touch to 5.2 ft but still clean.
Monday, August 10th, is where things get heavy. Early morning you’ve got 9.8 ft of WSW swell with an 18-second period – that’s a very long period groundswell, full of power. The combined energy hits 6359 (strong). Wind is NW at 6 mph, cross-offshore and clean. This is exceptional for experts only – over 8.2 ft means it’s for the experienced crew. By afternoon the wind swings SW and goes onshore at 19 mph, turning it into a messy, poor mess. So, early bird catches the wave.
Tuesday, August 11th, stays solid: 9.8 ft in the morning dropping to 8.2 ft in the afternoon, both with NW/NNW cross-offshore winds at 12-16 mph. Period is 14 seconds, energy is in the 3300s (strong). Clean and consistent, but still big – intermediate and above only.
Wednesday, August 12th, gets even bigger. Morning has 13.1 ft from the WSW, 16-second period, combined energy 9002 (very strong). Wind is W at 19 mph, cross-shore, so it’s lumpy but rideable for the brave. Afternoon sees 14.8 ft and onshore wind – forget it.
Thursday, August 13th, holds 16.4 ft swells from the SW, 15-second period, energy over 10000 (very strong). Cross-shore winds in the morning, lumpy, and cross-shore in the afternoon – these are big, powerful waves for experts only.
Friday, August 14th, stays big at 14.8 ft, but the wind is cross-onshore from the WSW at 12 mph. Choppy and messy. Not the best.
Saturday, August 15th, the swell drops to 13.1 ft in the morning and 11.5 ft in the afternoon, with light ESE winds. Cross-shore in the morning, cross-onshore in the afternoon. Better, but still big.
Sunday, August 16th, things start to clean up. Morning has 8.2 ft from the WSW, 14-second period, and a beautiful light east wind that’s cross-offshore. Combined energy 3212 (strong). This is excellent for experienced surfers – clean, solid, and manageable.
Monday, August 17th, similar: 7.9 ft, 15-second period, ENE cross-offshore at 6 mph. Clean and excellent for experienced surfers.
Tuesday, August 18th, is a gem. Morning has 6.9 ft from the WSW, 14-second period, ENE cross-offshore. Afternoon bumps to 7.5 ft with an 18-second period – that’s a long-period groundswell, cross-offshore from the east. Both sessions are excellent for experienced surfers. This is one of the best windows in the whole outlook.
Wednesday, August 19th, keeps the run going: 7.9 ft in the morning, 7.5 ft in the afternoon, both with offshore or cross-offshore winds from the north-northeast to northeast. Clean and excellent.
Thursday, August 20th, the swell drops to 5.6 ft in the morning and 4.3 ft in the afternoon. Wind is north at 16 mph, offshore. Combined energy drops to 994 (weak) and 1505 (moderate). Still clean, but smaller.
From Friday, August 21st, through Monday, August 24th, the swell stays between 5.2 ft and 8.2 ft, but the wind is mostly cross-shore or onshore, and the scores drop off. There’s still surf, but it’s not the clean, standout quality of the previous week.
The absolute best of this whole run? Tuesday, August 18th – both morning and afternoon. Clean cross-offshore winds, solid 6.9 ft to 7.5 ft swell with a long 14-18 second period from the WSW. Combined energy in the 3000s. That’s the one to circle. And Monday, August 10th morning, for the big-wave hunters – 9.8 ft, 18 seconds, clean. That’s a proper session.
Keep in mind, this is a beach and point setup at Johanna, exposed to the south swell, and it can get crowded often. The long-period swells here can be a bit straight at the beach, but the point will handle
Short Range ForecastHeavy rain (total 29mm), heaviest during Mon morning. Very mild (max 13°C on Mon morning, min 9°C on Mon morning). Winds increasing (light winds from the E on Sun night, fresh winds from the SW by Mon afternoon). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Wed afternoon. Very mild (max 13°C on Thu morning, min 11°C on Wed morning). Winds decreasing (fresh winds from the WSW on Wed afternoon, light winds from the SE by Fri night). | ||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | |||||||||||||||
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 13 | WSW 13 | WSW 19 | WSW 18 | WSW 17 | WSW 16 | WSW 14 | WSW 14 | SW 16 | WSW 16 | WSW 17 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 |
Wave Graph | |||||||||||||||||||||
1243 | 850 | 2627 | 6324 | 5533 | 3460 | 3496 | 2847 | 3304 | 8610 | 11702 | 11113 | 10052 | 10619 | 8736 | 11070 | 10667 | 8152 | 6559 | 5520 | 4284 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | cross-off | cross-on | cross-on | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-off |
High Tide | 3:59PM0.40m | 8:49AM0.39m | 3:58PM0.39m | 11:00AM0.42m | 11:50AM0.44m | 8:36PM0.31m | 12:22PM0.46m | 11:06PM0.34m | 12:50PM0.47m | 00:20AM0.39m | 1:16PM0.48m | 1:15AM0.43m | |||||||||
Low Tide | 11:21AM0.34m | 00:02AM0.05m | 12:36PM0.37m | 1:17AM0.07m | 3:00AM0.08m | 6:54PM0.31m | 4:35AM0.08m | 6:37PM0.26m | 5:44AM0.07m | 6:59PM0.20m | 6:37AM0.07m | 7:27PM0.14m | |||||||||
7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — | — | 7:13 | — | — | |
— | 5:43 | — | — | 5:44 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | |
mm | 4 | 1 | 9 | 8 | 3 | 1 | — | — | 3 | — | 4 | 1 | 1 | 2 | — | 1 | — | 1 | — | — | — |
Temp °C | 11 | 12 | 12 | 13 | 13 | 12 | 13 | 13 | 11 | 12 | 11 | 12 | 13 | 13 | 12 | 13 | 12 | 12 | 12 | 11 | 9 |
Feels °C | 5 | 7 | 9 | 9 | 8 | 6 | 7 | 8 | 5 | 5 | 4 | 6 | 8 | 8 | 8 | 8 | 7 | 9 | 9 | 8 | 7 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 14 | WSW 18 | WSW 17 | WSW 16 | WSW 14 | WSW 14 | SW 16 | SW 20 | WSW 18 | — | SW 15 | SW 15 | SW 15 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 |
1243 | 850 | 1525 | 6324 | 5533 | 3460 | 3496 | 2847 | 3304 | 392 | 1987 | — | 10052 | 10619 | 8736 | 11070 | 10667 | 8152 | 6559 | 5520 | 4284 | |
Swell 2 Height (m) Direction Period (s) | WSW 18 | WSW 16 | WSW 19 | E 5 | E 8 | E 9 | SW 21 | SW 19 | W 10 | — | — | — | — | — | — | — | — | — | — | — | SSW 17 |
486 | 726 | 2627 | 35 | 33 | 15 | 151 | 510 | 972 | — | — | — | — | — | — | — | — | — | — | — | 243 | |
Swell 3 Height (m) Direction Period (s) | — | — | ENE 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | 48 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 6 | ENE 6 | ENE 6 | — | SW 5 | WSW 8 | — | WNW 7 | NE 5 | WSW 16 | WSW 17 | SW 16 | — | — | — | — | — | — | — | — | — |
118 | 111 | 64 | — | 89 | 919 | — | 295 | 9 | 8610 | 11702 | 11113 | — | — | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 169 | 37 | 0 | 0 | 156 | 77 | 41 | 39 | 411 | 55 | 55 | 22 | 21 | 21 | 21 | 53 | 56 | 21 | 5 | 77 | 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.











