Surf Forecasts:
Johanna surf forecast from 14 Aug 2026:
- Best quality surf: Saturday 15 Aug, 4AM (local time) - 15ft (4.5m), 15s period, SW swell with glassy winds.
- Most powerful swell: Friday 14 Aug, 7PM (local time) - 15ft (4.5m), 16s period, SW swell with 10,010 kJ wave energy.
- Next surfable swell (1★+): Saturday 15 Aug, 4AM (local time) - 15ft (4.5m), 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 (Aug 15) at 4AM. The primary swell is predicted to be 4.5m 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 4.5m 16s and forecast to arrive on Friday (Aug 14) 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 1.1m 6s period and expected on Monday (Aug 17) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Sat 15th Aug) | 15ft (4.5m) 15s |
| Best Surf | 4AM (Sat 15th Aug) | 15ft (4.5m) 15s |
| Most Powerful | 7PM (Fri 14th Aug) | 15ft (4.5m) 16s |
Table - best surf conditions forecast for Johanna over the next 16 days.
The Lowdown
G’day, Rusty here. Looks like we’ve got a solid run of groundswell coming in for Johanna, but you’ll need to pick your windows carefully—conditions get pretty raw at times.
The pattern starts with a big pulse of SW swell that’s already rolling in. Friday morning (14 August) we’re looking at a beefy 15 ft SW swell with a 16-second period—very long-period groundswell that’s packing serious energy (10142). Problem is, the wind is howling from the west at 12 mph, cross-onshore, so it’s choppy and tricky. The afternoon cleans up a touch with a lighter 9 mph WSW cross-on, but still not glassy. This is big, powerful stuff—over 8 ft, so only for experienced surfers. The water temp is 58°, which is about normal for this time of year.
The real standout is Saturday morning (15 August). The swell drops slightly to 13 ft from the SW, still with that long 15-second period and strong energy (7222), but the wind goes dead calm—glass. This is exceptional for experts. Clean, lined-up waves at Johanna (a beach and point) with that groundswell hitting the exposed S-facing coast. It’s very consistent here, and with that kind of size and glass, it’ll be pumping. Crowds are often here, so expect company.
Sunday (16 August) sees the swell easing to 10 ft SW, then 8 ft WSW, with a cross-shore ESE breeze at 9 mph—slight chop but rideable for strong intermediates. Monday (17 August) holds 8-8 ft WSW swell with a clean cross-off E/ENE breeze, nice lines but still moderate energy. Tuesday (18 August) is a good call for intermediate-experts: 7-7 ft WSW swell, gentle offshore NE wind, clean conditions—solid, user-friendly groundswell.
By Wednesday (19 August), the swell drops to 4 ft, but the wind swings NNE at 22 mph—fresh offshore, so clean but small and weaker (energy down to 656). Thursday (20 August) is even smaller, around 4-4 ft, with light cross/cross-on breeze—not worth the paddle.
Now, Friday 21 August brings a new pulse: 8 ft WSW swell, 15-second period, light NW cross-off wind, clean and building. That’s a quality morning for experienced surfers. Saturday 22 August goes nuts—16 ft SW swell, but 22 mph WSW cross-on wind making it a choppy mess (energy 5535-8845). Avoid that—it’s borderline dangerous and lumpy. Sunday 23 August holds 13 ft SW swell with lighter 9-12 mph cross-on wind—still messy but maybe for the brave.
Monday 24 August is one to circle: 15 ft WSW swell with a cross-off NW breeze—clean, but the guidance says it’s too big for this break. That’s expert-only territory with serious energy (15561). Tuesday 25 August turns ugly again with SW winds and rain—poor conditions. Wednesday 26 August through Thursday 27 August sees 10-12 ft SW swell with light cross-on wind—marginal at best.
The final highlight is Saturday 29 August: a 8 ft SW swell, 16-second period, with NNW wind at just 3 mph—glassy clean. That’s a beautiful way to close the window, with moderate energy (3490) and clean conditions for strong intermediates and above.
So if you’re asking me, the best on offer is Saturday morning (15 August) for the pure power and glass, with a solid backup on Saturday 29 August for a cleaner, slightly smaller session. Only experienced surfers should be in the water the whole way through—this is serious ocean.
Stay safe, Rusty.
Short Range ForecastMostly dry. Very mild (max 13°C on Fri morning, min 11°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Wed night. Very mild (max 18°C on Tue afternoon, min 12°C on Mon afternoon). Winds decreasing (fresh winds from the NNE on Wed morning, light winds from the NNW by Wed night). | ||||||||||||||||||||
Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||
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 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | WSW 14 | WSW 14 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | WSW 17 | WSW 16 | WSW 14 |
Wave Graph | |||||||||||||||||||||
10142 | 9607 | 8673 | 7222 | 6134 | 4310 | 3171 | 2218 | 2091 | 2821 | 3371 | 2881 | 1809 | 1474 | 1083 | 656 | 530 | 684 | 807 | 864 | 1723 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | on | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross | cross-on | cross-off |
High Tide | 12:50PM0.47m | 00:20AM0.39m | 1:16PM0.48m | 1:15AM0.43m | 1:42PM0.48m | 2:02AM0.46m | 2:07PM0.48m | 2:44AM0.47m | 2:31PM0.47m | 3:23AM0.47m | 2:54PM0.46m | 4:01AM0.46m | 3:14PM0.44m | ||||||||
Low Tide | 6:59PM0.20m | 6:37AM0.07m | 7:27PM0.14m | 7:22AM0.08m | 7:56PM0.09m | 8:02AM0.11m | 8:26PM0.05m | 8:38AM0.13m | 8:56PM0.03m | 9:10AM0.17m | 9:25PM0.03m | 9:40AM0.20m | 9:54PM0.04m | ||||||||
7:15 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:07 | — | — | 7:07 | — | — | |
— | 5:46 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 5 | 1 | — | — |
Temp °C | 13 | 12 | 12 | 13 | 12 | 12 | 13 | 13 | 13 | 15 | 15 | 13 | 17 | 18 | 15 | 12 | 13 | 12 | 13 | 13 | 10 |
Feels °C | 9 | 9 | 10 | 10 | 9 | 10 | 9 | 10 | 11 | 11 | 11 | 9 | 13 | 15 | 10 | 5 | 8 | 7 | 11 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | WSW 14 | WSW 14 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 15 | WSW 15 | WSW 15 | WSW 14 | W 13 | W 13 | WSW 14 |
10142 | 9607 | 8673 | 7222 | 6134 | 4310 | 3171 | 2218 | 2091 | 2821 | 3371 | 2881 | 1809 | 1474 | 1083 | 656 | 530 | 684 | 673 | 564 | 1723 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SSW 12 | SSW 12 | SSW 11 | S 11 | SSW 10 | SW 18 | — | — | — | ESE 7 | WSW 19 | WSW 17 | WSW 16 | NE 5 |
— | — | — | — | — | — | — | 444 | 237 | 126 | 83 | 32 | 341 | — | — | — | 9 | 332 | 807 | 864 | 7 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | ESE 6 | — | — | — | SW 21 | E 7 | ENE 6 | ENE 5 | E 7 |
— | — | — | — | — | — | — | — | — | — | — | — | 43 | — | — | — | 117 | 8 | 8 | 9 | 4 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | E 4 | ESE 6 | E 5 | E 5 | E 6 | — | E 5 | E 5 | NE 5 | NNE 5 | NE 4 | NE 4 | NE 5 | SW 4 |
— | — | — | — | — | — | — | 13 | 53 | 51 | 39 | 88 | — | 46 | 29 | 51 | 42 | 5 | 12 | 19 | 10 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 21 | 21 | 21 | 0 | 21 | 0 | 5 | 5 | 0 | 18 | 36 | 0 | 0 | 0 | 0 | 58 | 58 | 18 | 18 | 21 | 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.











