Surf Forecasts:
Bay Left Wall surf forecast from 12 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 2AM (local time) - 11ft (3.5m), 15s period, W swell with cross-shore winds.
- Most powerful swell: Monday 17 Aug, 5PM (local time) - 11ft (3.5m), 17s period, W swell with 6,563 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 8AM (local time) - 6ft (1.8m), 16s period with WSW swell.
Best Forecast Surf Conditions for Bay Left Wall this week:
The surf forecast for Bay Left Wall over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 8AM. The primary swell is predicted to be 1.8m and 16s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Bay Left Wall in the next 16 days are 3.5m 17s and forecast to arrive on Monday (Aug 17) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Sunday (Aug 16) at 8AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Thu 13th Aug) | 6ft (1.8m) 16s |
| Best Surf | 2AM (Tue 18th Aug) | 11ft (3.5m) 15s |
| Most Powerful | 5PM (Mon 17th Aug) | 11ft (3.5m) 17s |
Table - best surf conditions forecast for Bay Left Wall over the next 16 days.
The Lowdown
Alright, Rusty here again, same spot, different numbers. We’re looking at Bay Left Wall for the whole run. It’s a sandbar break, beginner-friendly, but it can get too big for the learners. Water temp is sitting at 61°F, which is about 4°F colder than average – gonna feel chilly, so layer up.
We’ve got a slow start before some clean, solid swell arrives.
Thursday 13th August morning is the opener. We’ve got 6ft of WSW groundswell with a long 17-second period – that’s serious energy, measured at 1886. The wind is glassy. This is the best session on offer for experienced surfers; the wave will have power and shape, but the size and period might be too much for beginners. That east wind is not the optimum west, but with glass you won’t care.
Friday 14th August morning holds 6ft WSW swell at 16 seconds, with a clean cross-offshore breeze from the NNE. Energy is still very high at 1687. Another quality morning for the crew that knows what they’re doing.
Saturday 15th August morning the swell drops to 5ft from the WSW, period down to 14 seconds, energy easing to 839. A clean cross-off from the north makes it a nice, user-friendly day.
Sunday 16th August morning brings back 6ft of west swell, 15-second period, and energy at 1589. The NNE cross-off keeps it clean. Solid.
Then it gets ugly. Monday 17th is a write-off with 25 mph NW cross-onshore winds and messy overhead surf. Tuesday 18th is glassy but the swell is pumping at 12ft – way too big for this break, experts only, and the data says it’s oversized. Wednesday 19th is blown out again.
There’s a lull of poor conditions through Friday 21st.
Saturday 22nd August morning is another standout. The wind goes glassy, and we get 7ft of west swell at 14 seconds, with strong energy at 2045. Powerful and clean – excellent for experienced surfers.
After that, it gets messy. Sunday 23rd and Monday 24th are too windy, too big, or just average.
The last decent window is Wednesday 26th August morning, with the swell down to 4ft from the WSW, 13-second period, glassy conditions from the ESE, and energy at 627. Small but clean for a longboard.
It trails off into tiny, ordinary waves through Thursday 27th and Friday 28th.
So your best bets are Thursday 13th morning and Saturday 22nd morning – glassy, powerful, and clean. Don’t miss them.
Rusty.
Short Range ForecastMostly dry. Very mild (max 17°C on Fri afternoon, min 11°C on Thu morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Mon afternoon. Warm (max 21°C on Sun afternoon, min 11°C on Mon night). Winds decreasing (strong winds from the WSW on Mon afternoon, calm by Tue morning). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | W 15 | W 14 | W 17 | W 16 | W 17 | W 15 | W 16 | W 16 | W 16 | W 15 | W 14 | W 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1886 | 2001 | 1774 | 1687 | 1265 | 1137 | 834 | 765 | 722 | 1450 | 1504 | 2072 | 3317 | 6563 | 4875 | 5823 | 5225 | 3203 | 1102 | 4112 | 4054 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-on | off | cross-off | cross-on | cross-off | cross-off | on | off | cross-off | cross | cross | cross-on | cross-on | cross | glassy | glassy | cross-off | cross-on | on | cross |
High Tide | 10:01AM0.93m | 00:50AM0.56m | 10:34AM0.85m | 00:46AM0.58m | 10:57AM0.75m | 11:52PM0.62m | 11:07AM0.66m | 11:51PM0.67m | 11:05AM0.58m | 00:11AM0.72m | 7:38AM0.56m | 00:40AM0.75m | 1:18AM0.77m | ||||||||
Low Tide | 6:29PM0.34m | 3:30AM0.51m | 6:38PM0.41m | 4:14AM0.50m | 5:34PM0.46m | 4:56AM0.51m | 5:11PM0.46m | 5:39AM0.52m | 5:04PM0.44m | 6:25AM0.55m | 4:58PM0.39m | 4:23PM0.35m | |||||||||
 | |  | | |  | | | | |  |  |  |  | | | | | | | | |
 | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | — | 5:50 | — | — | 5:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 5 | — | — | — | — | — | 3 | — |
Temp °C | 13 | 14 | 14 | 15 | 17 | 16 | 15 | 17 | 17 | 18 | 21 | 19 | 16 | 13 | 13 | 13 | 14 | 13 | 15 | 16 | 14 |
Feels °C | 13 | 12 | 11 | 13 | 15 | 14 | 12 | 14 | 15 | 14 | 17 | 18 | 12 | 4 | 6 | 11 | 11 | 11 | 9 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | WSW 17 | WSW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 13 | W 15 | W 14 | W 17 | — | — | W 15 | W 16 | W 16 | W 16 | W 15 | — | W 15 |
| kJ | 1886 | 2001 | 1774 | 1687 | 1265 | 1137 | 834 | 765 | 722 | 1450 | 1504 | 2072 | — | — | 4875 | 5823 | 5225 | 3203 | 1102 | — | 4054 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNW 5 | — | W 20 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 7 | — | 121 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | N 4 | — | NNE 3 | N 4 | NNW 5 | NNW 5 | W 16 | W 17 | — | — | — | — | WNW 6 | W 14 | — |
| kJ | — | — | — | — | — | — | 5 | — | 1 | 18 | 18 | 9 | 3317 | 6563 | — | — | — | — | 226 | 4112 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 65 | 0 | 143 | 143 | 174 | 1626 | 574 | 1626 | 2 | 0 | 0 | 247 | 574 | 0 |
Best forecast wave conditions in Perth South Coast | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Bay Left Wall Surf forecast
The above surf forecast table for Bay Left Wall provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bay Left Wall can be found by selecting the local surf guide option on the grey menu. Our Bay Left Wall 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 (Bay Left Wall) 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 Bay Left Wall 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.
Bay Left Wall is 5 km (3 miles) from the city of Bunbury. If you plan a holiday in Perth South Coast, 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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