Lefthanders Surf Break

Lat Long: 33.90° S 114.98° E

Lefthanders Surf Forecast and Surf Report

Issued: 7 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Lefthanders sea temperature is
19.3° C
2.0° 

Lefthanders surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Lefthanders surf forecast from 17 Aug 2026:

  • Best quality surf: Monday 17 Aug, 11PM (local time) - 18ft (5.5m), 15s period, WSW swell with cross-onshore winds.
  • Most powerful swell: Monday 17 Aug, 11PM (local time) - 18ft (5.5m), 15s period, WSW swell with 12,245 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 11PM (local time) - 18ft (5.5m), 15s period with WSW 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 Monday (Aug 17) at 11PM. The primary swell is predicted to be 5.5m and 15s period with a secondary swell of 4.0m and 16s. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Lefthanders in the next 16 days are 5.5m 15s and forecast to arrive on Monday (Aug 17) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Mon 17th Aug)18ft (5.5m) 15s
Best Surf11PM (Mon 17th Aug)18ft (5.5m) 15s
Most Powerful11PM (Mon 17th Aug)18ft (5.5m) 15s

Table - best surf conditions forecast for Lefthanders over the next 16 days.


The Lowdown

G’day, Rusty here. We’ve got one break on the menu for the next 16 days, and it’s a bit of a beast. Lefthanders is a reef break, very consistent, exposed to the swell, and ideal when the swell comes from the WSW—which is exactly what’s lined up. But here’s the thing: pretty much the whole run is too big for most, especially beginners. The water’s sitting at a touch warmer than normal for this time of year, about 67°F with an anomaly of 4°F—so a bit on the balmy side.

The first proper surf window isn’t until Monday 17 August, but it’s a shocker. Solid 20ft swell from the WSW at 12 seconds, but the wind is howling onshore at 28 mph. Total wave energy is strong at 9973. That’s a total write-off—poor surf conditions. Not worth the paddle.

Tuesday 18 August morning is where things get interesting. The swell drops to 15ft, still big, but now the wind is offshore from the WNW at 12 mph. The period jumps to 16 seconds—very long period groundswell. That means long, powerful lines, and at a reef like this, it’ll hold up beautifully. The energy is massive at 11395. This is a standout for experienced surfers only. It’s too big for beginners, but if you’ve got the balls, the morning session looks clean and firing. That afternoon the wind swings cross-onshore, so get in early.

Wednesday 19 August keeps the 15ft swell with a 15-second period, and both morning and afternoon have light offshore winds (9 mph). More long-period power with energy around 8846 to 10681. Again, expert territory, but the quality is there. The water’s holding that warmer-than-average feel.

Thursday 20 August sees the swell easing to 12-13ft, still big, but the wind goes cross-onshore. Cleaner in the morning, but still choppy later. Still too big for beginners.

Friday 21 August morning is a gem. Swell at 12ft from the SW, 14-second period, and the wind goes glassy—absolutely flat calm. That is pristine. The energy is still strong at 4869. This is another standout moment: glassy conditions on a solid, long-period swell at a reef break. It’ll be a bit of a paddle out between sets, but the waves will be epic. Not for learners though.

Saturday 22 August morning repeats that glassy magic: 10ft, 16-second period, calm wind, energy at 4471. Beautiful. The afternoon turns cross-shore and drops to 8ft—marginal by comparison.

Sunday 23 August is a write-off. Winds pick up cross-onshore and choppy. Swell jumps back to 10ft, but the quality is gone.

Monday 24 August has a decent morning window with offshore wind and 12ft swell at 13 seconds, but the afternoon turns onshore again.

Tuesday 25 August sees a surge: 13ft from the SW at 13 seconds, energy spiking to 12457. That’s strong. Wind is light cross-onshore. Still expert-only.

From Wednesday 26 August onward, the swell slowly drops, but the wind stays mostly cross-onshore or cross. Thursday 27 August morning is worth noting: 8ft, 14-second period, and glassy calm winds. Excellent for experienced surfers, but the size is finally getting manageable for intermediates—still a bit punchy though.

Friday 28 August has clean cross-offshore winds in the morning, 12ft, 14 seconds—solid and clean for the good crew.

Saturday 29 August is marginal at best, with fresh winds making it messy.

Sunday 30 August sees a new pulse: 12ft at 18 seconds—very long period. That’s a proper groundswell, but the wind is cross-onshore and the energy is strong at 7282. Too big and blown out.

Monday 31 August through Tuesday 1 September is pure chaos: gale-force onshore winds, 13-16ft swell, blown out. Stay home.

Overall, the best sessions are Tuesday 18 August morning, Friday 21 August morning, and Saturday 22 August morning. All glassy or offshore, with solid to big long-period swell. Expert territory, but for those who can handle it, it’s gonna be unreal.

Rusty.

Short Range Forecast

Light rain (total 7mm), mostly falling on Wed morning. Very mild (max 16°C on Tue night, min 14°C on Mon night). Winds decreasing (strong winds from the SW on Mon night, light winds from the W by Wed night).

Days 5-7 Weather Summary

Light rain (total 4mm), mostly falling on Sun morning. Very mild (max 18°C on Sat afternoon, min 13°C on Thu night). Winds increasing (calm on Fri morning, strong winds from the WSW by Sun morning).

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
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0
0
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0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
5
WSW
15
4.5
WSW
16
4.5
WSW
16
4
WSW
15
4.5
WSW
15
5
WSW
16
4.5
WSW
16
4
WSW
16
3.5
SW
16
3.5
SW
15
3.5
SW
14
3
SW
14
3
SW
14
3
SW
16
3
SW
16
2.3
SW
14
1.9
SW
13
3
WSW
14
2.5
WSW
14
Wave Graph
Metric surfscale
Energy kJ
11722
10736
8957
6419
9072
10770
10064
7301
6690
6025
4654
3953
2971
4529
3641
2056
1200
3815
2694
Wind (km/h)
30
SW
15
WNW
25
NW
30
WNW
20
WSW
15
SW
10
WNW
15
WSW
15
SW
5
SW
0
W
15
SW
15
ESE
10
NNE
10
NW
25
W
30
WSW
25
SW
25
SW
Wind State
cross-on
on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
glassy
cross-on
off
cross-off
cross-on
on
cross-on
cross-on
cross-on
High Tide
00:10AM0.70m
00:37AM0.74m
1:15AM0.78m
2:08AM0.81m
3:39AM0.84m
5:28AM0.87m
Low Tide
3:35PM0.38m
3:25PM0.34m
3:31PM0.30m
3:41PM0.29m
3:54PM0.28m
4:05PM0.29m
light rain
part cloud
cloud
rain showers
rain showers
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
rain showers
part cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:54
6:54
6:52
6:52
6:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:51
5:51
5:52
5:52
5:53
5:53
5:54
 mm
1
4
2
2
2
1
Temp °C
14
15
15
16
16
15
15
15
15
15
14
15
14
17
18
18
16
15
15
Feels °C
5
10
10
8
12
11
13
12
12
13
14
13
11
14
15
17
9
9
10
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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