Surf Forecasts:
Bunbury Bay surf forecast from 18 Aug 2026:
- Best quality surf: Wednesday 19 Aug, 11PM (local time) - 8ft (2.5m), 16s period, W swell with glassy winds.
- Most powerful swell: Thursday 20 Aug, 2AM (local time) - 8ft (2.5m), 16s period, W swell with 3,834 kJ wave energy.
- Next surfable swell (1★+): Wednesday 19 Aug, 11PM (local time) - 8ft (2.5m), 16s period with W swell.
Best Forecast Surf Conditions for Bunbury Bay this week:
The surf forecast for Bunbury Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 19) at 11PM. The primary swell is predicted to be 2.5m and 16s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Bunbury Bay in the next 16 days are 2.5m 16s and forecast to arrive on Thursday (Aug 20) at 2AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Sunday (Aug 23) at 8PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 19th Aug) | 8ft (2.5m) 16s |
| Best Surf | 11PM (Wed 19th Aug) | 8ft (2.5m) 16s |
| Most Powerful | 2AM (Thu 20th Aug) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Bunbury Bay over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s happening at Bunbury Bay over the next couple of weeks.
It’s a slow start, but there are some gems hiding in there. The first couple of days are pretty average – Wednesday 19 August is a messy 8ft west swell with a cross-on breeze, not worth getting wet for.
Then Thursday 20 August morning fires up. This is the pick of the forecast. We’ve got a clean 8ft west swell, a long 16-second period, and a heap of energy (2702). And the best part? Glassy conditions. That’s a dream scenario. The water temp is about normal for this time of year.
Friday 21 August morning is another beauty – 6ft from the WSW, still a 15-second period, glassy, and clean (1641 energy). Perfect for a long session.
Saturday 22 August morning holds up with a 5ft WSW swell, 16-second period, and light cross-off wind keeping it clean (1348 energy). Good times.
We hit a rough patch from Saturday afternoon through Tuesday 25 August. The swell drops, the wind gets nasty, and the energy fades. Tuesday is a total dud.
But then Wednesday 26 August morning brings a massive pulse – a 10ft west swell with a 17-second period and an enormous 4531 energy. That’s for experts only. The wind is a bit cross-on, but the power is undeniable.
Thursday 27 August cleans up with a cross-off breeze in the morning on a 6ft west swell (1354 energy), and by the afternoon the wind goes offshore with a 5ft WSW swell. A very solid day.
The rest of the run into early September is smaller and more inconsistent. There are a few clean windows – Saturday 30 August morning has a 5ft west swell with cross-off wind – but nothing that rivals that Thursday morning.
The absolute standout is Thursday 20 August morning at Bunbury Bay. Glassy, clean, 8ft west swell with serious energy. Don’t sleep on that one.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue night. Very mild (max 17°C on Fri afternoon, min 12°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Sun afternoon, min 9°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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) | W 16 | W 15 | W 16 | W 16 | W 16 | W 16 | W 16 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | W 18 | WSW 16 | W 14 | WSW 14 | W 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 3479 | 2797 | 3555 | 3834 | 2702 | 2209 | 2153 | 1597 | 1576 | 1328 | 1348 | 1193 | 622 | 801 | 733 | 1643 | 1063 | 694 | 345 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | glassy | glassy | cross-on | off | glassy | cross | off | cross-off | cross | cross-off | cross | cross | off | cross | on | cross-on |
High Tide | 00:40AM0.75m | 1:18AM0.77m | 2:06AM0.77m | 4:46AM0.77m | 5:54AM0.80m | 6:46AM0.82m | |||||||||||||
Low Tide | 4:23PM0.35m | 3:56PM0.31m | 4:03PM0.28m | 4:11PM0.27m | 4:18PM0.26m | 4:22PM0.26m | |||||||||||||
 |  |  |  |  | |  | | | | | | | | | | | | | |
 | — | 6:52 | — | — | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — |
 | 5:50 | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — |
mm | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 14 | 15 | 16 | 15 | 15 | 17 | 15 | 15 | 16 | 14 | 15 | 17 | 13 | 13 | 15 | 15 |
Feels °C | 11 | 13 | 13 | 12 | 14 | 15 | 13 | 14 | 15 | 12 | 13 | 13 | 10 | 12 | 13 | 8 | 10 | 12 | 14 |
Swell 1 Height (m) Direction Period (s) | — | W 15 | W 16 | W 16 | W 16 | W 16 | W 16 | WSW 15 | WSW 15 | WSW 15 | WSW 16 | WSW 16 | WSW 14 | WSW 14 | W 18 | WSW 16 | W 14 | WSW 14 | W 13 |
| kJ | — | 2797 | 3555 | 3834 | 2702 | 2209 | 2153 | 1597 | 1576 | 1328 | 1348 | 1193 | 622 | 801 | 733 | 1643 | 1063 | 694 | 345 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 24 | WSW 22 | WSW 19 | — | — | W 21 | W 19 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 44 | 91 | 481 | — | — | 35 | 259 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | WSW 13 | — | — | — | — |
| kJ | 3479 | — | — | — | — | — | — | — | — | — | — | — | — | — | 643 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 224 | 59 | 59 | 0 | 0 | 57 | 0 | 0 | 3 | 0 | 0 | 3 | 0 | 2 | 3 | 0 | 96 | 119 | 96 |
Best forecast wave conditions in Perth South Coast | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
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Information about the Bunbury Bay Surf forecast
The above surf forecast table for Bunbury Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Bunbury Bay can be found by selecting the local surf guide option on the grey menu. Our Bunbury Bay 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 (Bunbury Bay) 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 Bunbury Bay 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.
Bunbury Bay is 3 km (2 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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