Surf Forecasts:
Lefthanders surf forecast from 20 Aug 2026:
- Best quality surf: Friday 21 Aug, 8AM (local time) - 11ft (3.5m), 15s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 26 Aug, 8AM (local time) - 16ft (5.0m), 18s period, WSW swell with 17,220 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 8AM (local time) - 11ft (3.5m), 15s period with SW swell.
Best Forecast Surf Conditions for Lefthanders this week:
The surf forecast for Lefthanders over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 8AM. The primary swell is predicted to be 3.5m and 15s period with a secondary swell of 0.2m and 24s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Lefthanders in the next 16 days are 5.0m 18s and forecast to arrive on Wednesday (Aug 26) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Fri 21st Aug) | 11ft (3.5m) 15s |
| Best Surf | 8AM (Fri 21st Aug) | 11ft (3.5m) 15s |
| Most Powerful | 8AM (Wed 26th Aug) | 16ft (5.0m) 18s |
Table - best surf conditions forecast for Lefthanders over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks.
Right off the bat, we’ve got a wild ride ahead. The ocean is absolutely pumping, but for most of this period, it’s going to be a case of too much of a good thing. The real standout for the whole window is Friday the 21st of August, but it’s not for the faint of heart.
The main event is Lefthanders. It’s a very consistent reef break that’s wide open to the swell, and it’s usually a dream for beginners. But don’t be fooled by the "beginner" tag this time. We’re looking at a solid 12ft SW swell with a long 14-second period, and the combined wave energy is a massive 5427 (moderate to strong). The water is a touch warmer than normal at 66°. The magic of Friday morning is the glassy, zero wind conditions. That’s about as clean as it gets. The problem is, at 12ft, this is expert territory only. The swell is simply too big for this spot, meaning it’s going to be a heavy, closed-out mess even for the skilled guys. The crowd situation is likely to be an issue, as this place gets packed. Friday afternoon is a write-off with a cross-onshore wind.
Saturday the 22nd and Sunday the 23rd are more of the same – solid, powerful SW groundswell, but consistently ruined by strong cross-shore winds. It’s not going to be pretty. Monday the 24th morning offers a brief glimmer with a 10ft SW swell and a light cross-shore breeze, but it’s still too big for the break to be considered good.
We then hit a rough patch from Tuesday the 25th through to the end of the month. The swell is huge, hitting 16ft on the 26th, and the wind is howling onshore or cross-onshore. This is a stretch of poor, nasty conditions. The energy readings are off the charts, with a 16085 (strong to very strong) on the 26th, but it’s combined with a 22 mph cross-on wind. For a beach or reef setup like this, honestly, it looks more like a kite-surfing session than a paddle-surfing one.
The light at the end of the tunnel comes on Friday the 28th of August. The swell drops to a more manageable 8ft from the SW, with a 12-second period (moderate energy at 1693). But the real winner is the cross-offshore wind. This is going to be clean, lined-up, and powerful. It’s marked as excellent for experienced surfers, which is spot on. Saturday the 29th of August morning is also a good call, with a 6ft SW swell and a light cross-offshore breeze. These two days are the best bets for anyone who knows what they’re doing.
After that, we’re back into the chaos. The first week of September is a write-off. Swell keeps pumping, but the wind is relentless, smashing everything apart. The 5th of September even shows a 23ft swell—that’s a full-on winter swell event, but completely unsurfable with 19 mph cross-on winds.
So, to wrap it up: Friday the 21st of August morning is the standout for raw power and perfection, but it’s strictly for experts. For the average surfer, hold out for the clean conditions on Friday the 28th and Saturday the 29th of August. That’s your window.
Rusty.
Short Range ForecastSome drizzle, heaviest during Sun morning. Very mild (max 15°C on Fri morning, min 11°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 28mm), heaviest during Wed morning. Very mild (max 17°C on Tue morning, min 10°C on Mon morning). Winds increasing (light winds from the ENE on Mon morning, fresh winds from the NW by Tue morning). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 16 | SW 16 | SW 14 | SW 13 | WSW 16 | SW 15 | SW 14 | SW 13 | WSW 12 | WSW 15 | WSW 14 | WSW 15 | WSW 17 | WSW 17 | SW 16 | SW 14 | SW 14 | SW 13 |
Wave Graph | |||||||||||||||||||||
5285 | 4654 | 3195 | 4301 | 3283 | 1785 | 2187 | 2128 | 5358 | 3091 | 2241 | 1640 | 3371 | 4183 | 7330 | 16085 | 13103 | 10754 | 7008 | 5191 | 3126 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | cross-off | cross | cross | cross | cross | cross | off | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-off |
High Tide | 3:39AM0.84m | 5:28AM0.87m | 6:35AM0.90m | 7:24AM0.91m | 8:07AM0.91m | 8:49AM0.90m | 11:28PM0.59m | ||||||||||||||
Low Tide | 3:41PM0.29m | 3:54PM0.28m | 4:05PM0.29m | 4:17PM0.29m | 4:29PM0.31m | 4:41PM0.32m | 4:53PM0.34m | 2:29AM0.56m | |||||||||||||
6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | |
— | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | 1 | 4 | 4 | 16 | 2 | 1 | 1 | — | — |
Temp °C | 15 | 15 | 14 | 15 | 15 | 14 | 15 | 14 | 13 | 13 | 15 | 15 | 17 | 16 | 16 | 13 | 15 | 14 | 15 | 15 | 14 |
Feels °C | 14 | 13 | 11 | 12 | 10 | 9 | 11 | 9 | 9 | 10 | 11 | 10 | 12 | 14 | 14 | 10 | 7 | 6 | 10 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 16 | SW 16 | SW 14 | SW 13 | SW 13 | SW 15 | SW 14 | SW 13 | WSW 12 | WSW 15 | WSW 14 | WSW 15 | WSW 17 | WSW 17 | — | SW 14 | SW 14 | SW 13 |
5285 | 4654 | 3195 | 4301 | 3283 | 1785 | 2187 | 2013 | 5358 | 3091 | 2241 | 1640 | 3371 | 4183 | 7330 | 16085 | 13103 | — | 7008 | 5191 | 3126 | |
Swell 2 Height (m) Direction Period (s) | SW 24 | SW 20 | SW 17 | — | — | WSW 20 | WSW 18 | WSW 16 | — | — | — | SW 18 | — | — | S 12 | — | S 12 | — | — | — | — |
142 | 1261 | 2719 | — | — | 75 | 448 | 2128 | — | — | — | 255 | — | — | 11 | — | 11 | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 18 | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | 255 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSW 4 | SSW 4 | — | — | — | — | — | NNW 4 | NNW 5 | NW 6 | — | — | — | SW 16 | — | — | — |
— | — | — | — | 18 | 21 | — | — | — | — | — | 11 | 24 | 171 | — | — | — | 10754 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 4 | 1 | 23 | 91 | 23 | 23 | 1688 | 1 | 3 | 277 | 50 | 218 | 5 | 41 | 23 | 358 | 91 | 5 | 5 | 2 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Information about the Lefthanders Surf forecast
The above surf forecast table for Lefthanders provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lefthanders can be found by selecting the local surf guide option on the grey menu. Our Lefthanders 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 (Lefthanders) 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 Lefthanders 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.
Lefthanders is 87 km (54 miles) from the city of Bunbury. If you plan a holiday in Margaret River, look for hotels and other accommodation in Bunbury. Bunbury has rooms for a wide range of budgets as well as car hire and transport links.











