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Gas Bay Surf Forecast
/ WA – Margaret River (57 breaks) / Western Australia (159 breaks) /
Surf Forecasts:
Gas Bay surfForecast / WA – Margaret River / Australia
16 Day Weather and Surf, issued 1 pm Monday 25 May 2026 AWSTForecast update in hr min s Forecast update imminent
Gas Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gas Bay sea temperature is
20.9° C
(Which is 1.0°C warmer than normal for this time of year)Best Forecast Surf Conditions for Gas Bay this week:
The surf forecast for Gas Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (May 29) at 5PM. The primary swell is predicted to be 1.7m and 11s period with a secondary swell of 1.1m and 10s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Gas Bay in the next 16 days are 8.5m 14s and forecast to arrive on Monday (Jun 01) at 8AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Wednesday (May 27) at 5PM.
| Wave Type | Time (AWST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Fri 29th May) | 5.5ft (1.7m) 11s |
| Best Surf | 5AM (Mon 1st Jun) | 28ft (8.5m) 13s |
| Most Powerful | 8AM (Mon 1st Jun) | 28ft (8.5m) 14s |
Table - best surf conditions forecast for Gas Bay over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 22mm), heaviest during Wed night. Warm (max 21°C on Wed morning, min 16°C on Mon night). Winds increasing (light winds from the NNE on Mon night, strong winds from the NNW by Wed afternoon). | Days 5-7 Weather SummaryHeavy rain (total 22mm), heaviest during Sun morning. Very mild (max 19°C on Sat morning, min 13°C on Fri night). Winds increasing (calm on Fri afternoon, near gales from the NW by Sun morning). | ||||||||||||||||||||
Mon 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
WSW 14 | SW 14 | SW 13 | WSW 18 | WSW 16 | WSW 16 | WSW 15 | WNW 14 | WSW 13 | WSW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 14 | SW 13 | SW 14 | WNW 9 | W 10 | W 11 | WSW 14 | |
1244 | 586 | 336 | 692 | 1165 | 1762 | 2076 | 5711 | 4099 | 3158 | 1313 | 1040 | 688 | 561 | 1201 | 846 | 979 | 2151 | 4774 | 9731 | 23766 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-off | cross | cross-off | cross | cross | cross | cross-on | on | on | on | on | glassy | cross-off | cross-on | cross-on | cross-on | cross-on | on | on | on | |
High Tide | 8:12PM0.37m | 7:59AM0.55m | 7:47AM0.61m | 7:55AM0.67m | 8:11AM0.72m | 8:32AM0.76m | 8:56AM0.78m | 9:21AM0.78m | |||||||||||||
Low Tide | 3:50PM0.33m | 00:54AM0.35m | 4:18PM0.26m | 4:47PM0.20m | 5:16PM0.15m | 5:48PM0.12m | 6:25PM0.10m | 7:08PM0.09m | |||||||||||||
 |  | | | | |  |  |  | | | | |  |  | |  | | |  | | |
 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:15 | — | — | 7:15 | — | — | 7:16 |
 | 5:21 | — | — | 5:21 | — | — | 5:20 | — | — | 5:20 | — | — | 5:19 | — | — | 5:19 | — | — | 5:19 | — | 5:17 |
— | — | — | — | — | — | 5 | 17 | — | — | — | — | — | 3 | 3 | 2 | 10 | 4 | 2 | 8 | 1 | |
Temp °C | 18 | 18 | 19 | 20 | 20 | 21 | 20 | 19 | 18 | 17 | 16 | 16 | 16 | 15 | 19 | 19 | 18 | 16 | 16 | 16 | 16 |
12 | 14 | 13 | 14 | 15 | 16 | 14 | 13 | 11 | 11 | 12 | 13 | 13 | 12 | 12 | 12 | 12 | 4 | 3 | 4 | 8 | |
Swell 1 Height (m) Direction Period (s) | WSW 14 | SW 14 | SW 13 | WSW 18 | WSW 16 | WSW 16 | WSW 15 | — | NW 9 | WSW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 14 | SW 13 | SW 14 | SW 13 | SW 20 | — | — |
 kJ | 1244 | 586 | 336 | 692 | 1165 | 1762 | 2076 | — | 548 | 3158 | 1313 | 1040 | 688 | 561 | 1201 | 846 | 886 | 905 | 60 | — | — |
Swell 2 Height (m) Direction Period (s) | S 9 | W 12 | W 11 | W 11 | W 11 | SW 11 | — | — | — | NNW 8 | W 11 | WNW 10 | W 10 | SW 14 | W 9 | — | W 15 | SW 22 | SW 20 | — | — |
| kJ | 7 | 280 | 189 | 224 | 329 | 33 | — | — | — | 188 | 651 | 370 | 250 | 404 | 41 | — | 17 | 18 | 60 | — | — |
Swell 3 Height (m) Direction Period (s) | SSE 9 | S 9 | WSW 20 | SW 13 | SW 12 | — | — | — | — | SW 13 | NNW 7 | SW 18 | SW 16 | WNW 10 | — | — | — | SW 22 | SSE 8 | — | — |
| kJ | 8 | 2 | 216 | 228 | 92 | — | — | — | — | 424 | 48 | 49 | 91 | 123 | — | — | — | 18 | 7 | — | — |
Wind waves Height (m) Direction Period (s) | N 6 | NNW 6 | N 6 | NNW 6 | N 6 | NW 8 | NW 9 | WNW 14 | WSW 13 | — | — | — | — | NNW 6 | N 5 | WNW 7 | WNW 8 | WNW 9 | W 10 | W 11 | WSW 14 |
| kJ | 110 | 121 | 243 | 219 | 232 | 1132 | 2043 | 5711 | 4099 | — | — | — | — | 12 | 71 | 537 | 979 | 2151 | 4774 | 9731 | 23766 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 27 | 27 | 27 | 130 | 146 | 27 | 130 | 130 | 297 | 1356 | 19 | 19 | 19 | 2 | 153 | 633 | 241 | 472 | 1687 | 1794 | 1687 |
Best forecast wave conditions in Margaret River | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Gas Bay surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Gas Bay Surf forecast
The above surf forecast table for Gas Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Gas Bay can be found by selecting the local surf guide option on the grey menu. Our Gas 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 (Gas 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 Gas 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.
Gas Bay is 96 km (60 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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