Surf Forecasts:
Isolators surf forecast from 14 Sep 2026:
- Best quality surf: Saturday 19 Sep, 2AM (local time) - 10ft (3.0m), 16s period, WSW swell with cross-onshore winds.
- Most powerful swell: Saturday 19 Sep, 5AM (local time) - 10ft (3.0m), 15s period, WSW swell with 3,574 kJ wave energy.
- Next surfable swell (1★+): Tuesday 15 Sep, 2PM (local time) - 7.5ft (2.3m), 14s period with WSW swell.
Best Forecast Surf Conditions for Isolators this week:
The surf forecast for Isolators over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 15) at 2PM. The primary swell is predicted to be 2.3m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Isolators in the next 16 days are 3.0m 15s and forecast to arrive on Saturday (Sep 19) at 5AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Sep 15) at 5AM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Tue 15th Sep) | 7.5ft (2.3m) 14s |
| Best Surf | 2AM (Sat 19th Sep) | 10ft (3.0m) 16s |
| Most Powerful | 5AM (Sat 19th Sep) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Isolators over the next 16 days.
The Lowdown
Alright, Rusty here again, this time in feet and miles per hour for the same stretch at Isolators.
The water temp is about 65°F, which is pretty standard for mid-September around here.
Monday the 14th starts us off with 8ft of WSW swell – a lot of energy (2717). But the wind is cross-off in the morning, then goes cross in the afternoon, and the surf is just so-so. Tuesday the 15th is similar: 8ft (2152), still cross or cross-off breezes.
Wednesday the 16th is the first decent one. A 5ft WSW swell in the morning with a clean offshore breeze at 12 mph. Then by the afternoon, the wind drops to nothing – glassy – and the swell is 3ft (566). Clean and small, good for a longboard.
From Thursday the 17th through to the end of the month, it’s ugly. Cross-winds, onshores, rain, and lumpy surf. Even when the swell is 8ft (2840), the wind chops it to pieces. Several days in a row with no real surf on offer. Good for kites, not for paddling.
Then Friday the 25th. 10ft of SW groundswell in the morning with a dead calm wind – glassy – and energy reading 5011. That’s a big, powerful, long-period swell (15 seconds). The guide says it might be too big for this break – experts only. The afternoon jumps to 13ft (11961) but with a cross-on breeze, so messy.
Saturday the 26th: 12ft (6587) morning, 10ft (4543) afternoon, both with offshore or cross-off winds. Again, expert territory. Huge, clean, but dangerous.
Sunday the 27th settles to 6ft (1507) with clean cross-off winds, but it’s not scoring high.
The best on offer? For the brave, the morning of Friday the 25th – glassy, giant, groundswell. For everyone else, Wednesday the 16th morning gives you clean, small waves. Isolators is a consistent reef and draws a crowd often, so plan for company.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Wed afternoon, min 11°C on Mon night). Winds decreasing (fresh winds from the E on Mon night, calm by Wed afternoon). | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Fri afternoon. Very mild (max 19°C on Thu morning, min 12°C on Fri morning). Winds decreasing (strong winds from the SSE on Fri morning, light winds from the WNW by Sat night). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 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) | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 17 | WSW 16 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | WSW 13 | WSW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2717 | 2756 | 2557 | 2152 | 1983 | 1265 | 700 | 346 | 602 | 537 | 402 | 575 | 1022 | 2918 | 3566 | 2840 | 2368 | 1445 | 1000 | 1137 | 2563 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross | off | off | glassy | off | cross | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on |
High Tide | 10:31AM0.32m | 10:43PM0.61m | 10:55PM0.64m | 11:14PM0.64m | 11:42PM0.63m | 00:18AM0.61m | 1:26AM0.58m | ||||||||||||||
Low Tide | 2:49PM0.29m | 1:43PM0.24m | 1:38PM0.19m | 1:58PM0.15m | 2:22PM0.13m | 2:44PM0.11m | 2:41AM0.58m | 3:04PM0.11m | |||||||||||||
 |  |  | |  |  | | | | | |  |  |  | | | |  | | | | |
 | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — | 6:16 | — | — | 6:16 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 5 | 7 | 2 | — | — | — | — | — | — |
Temp °C | 15 | 17 | 16 | 15 | 20 | 20 | 19 | 24 | 23 | 19 | 18 | 18 | 14 | 13 | 14 | 15 | 16 | 16 | 16 | 16 | 16 |
Feels °C | 11 | 15 | 12 | 11 | 19 | 16 | 16 | 25 | 21 | 18 | 15 | 14 | 6 | 6 | 8 | 11 | 12 | 11 | 13 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | WSW 12 | WSW 17 | WSW 16 | WSW 14 | WSW 14 | WSW 13 | WSW 12 | WSW 13 | WSW 15 |
| kJ | 2717 | 2756 | 2557 | 2152 | 1983 | 1265 | 700 | 346 | 602 | 537 | 402 | 575 | 1022 | 2918 | 3566 | 2840 | 2368 | 1445 | 1000 | 1137 | 2563 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 16 | SW 21 | WSW 20 | WSW 18 | — | WSW 17 | — | — | — | — | — | — | SW 16 | — |
| kJ | — | — | — | — | — | — | — | 220 | 18 | 38 | 124 | — | 640 | — | — | — | — | — | — | 322 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNE 4 | — | — | — | — | NNW 7 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 1 | — | — | — | — | 88 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | E 4 | ENE 4 | — | E 3 | ENE 4 | — | NNE 4 | N 4 | NW 4 | NNW 6 | S 4 | S 4 | SSW 4 | — | — | — | — | — | — |
| kJ | — | — | 14 | 13 | — | 8 | 7 | — | 23 | 7 | 45 | 246 | 11 | 43 | 8 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 13 | 1 | 1 | 0 | 0 | 0 | 71 | 78 | 234 | 162 | 65 | 307 | 9 | 485 | 1794 | 9 | 78 | 78 | 217 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Isolators Surf forecast
The above surf forecast table for Isolators provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Isolators can be found by selecting the local surf guide option on the grey menu. Our Isolators 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 (Isolators) 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 Isolators 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.
Isolators is 65 km (40 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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