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Surf Forecasts:

Gas Bay surf break

Gas Bay surfForecast / WA – Margaret River / Australia

information circle12 Day Weather and Surf, issued 7 am Tuesday 25 Nov 2025 AWST
Forecast 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
19.2° C
 (Which is slightly warmer than usual)

Best Forecast Surf Conditions for Gas Bay this week:

The surf forecast for Gas Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 29) at 5AM. The primary swell is predicted to be 1.9m and 13s period with a secondary swell of 0.6m and 10s. Another secondary swell of 0.6m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Gas Bay in the next 12 days are 3.0m 15s and forecast to arrive on Thursday (Nov 27) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Sunday (Nov 30) at 8PM.

Wave TypeTime (AWST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sat 29th Nov)6ft (1.9m) 13s
Best Surf11AM (Sun 30th Nov)10ft (3.0m) 15s
Most Powerful11PM (Thu 27th Nov)10ft (3.0m) 15s

Table - best surf conditions forecast for Gas Bay over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 2mm), mostly falling on Tue night. Very mild (max 17°C on Tue morning, min 15°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 23°C on Sun afternoon, min 12°C on Sat night). Mainly fresh winds.

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
2
0
0
0
1
2
0
3
3
0
3
1
1
3
5
3
4
2
3
4
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.4
SW
2.2
SW
1.8
SW
2
SW
1
WSW
2.1
SW
2.5
SW
3
SW
3
SW
2.5
SW
2.4
SW
2.1
SW
1.7
SW
1.6
SW
1.9
SW
3
SW
2.5
WSW
2.4
WSW
1.9
SW
1.7
SW
1.7
SW
Period(s) (?)11101081611141515141413131312151414131314
Wave
Graph
(?)Metric surfscale
Energy kJ (?)134710016245045061126263337154079300923561524996878104336152981209412699661203
Wind
(km/h)
25
SW
15
WSW
15
W
20
SW
20
SW
15
SW
20
WSW
25
SSW
20
S
15
SSW
25
SSW
15
SSE
20
SW
25
S
25
SE
15
SSE
30
SSE
20
E
15
NW
15
S
15
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		oncross-
on		cross-
on		cross-
on		oncross-
on		crosscross-
on		cross-
on		cross-
off		cross-
on		crosscross-
off		cross-
off		cross-
off		offcross-
on		crossoff
High Tide
/ height (m)
11:11PM
0.71
11:40PM
0.66
11:56PM
0.58
10:03PM
0.50
7:45PM
0.52
6:34AM
0.41
7:32PM
0.59
8:54AM
0.37
7:41PM
0.67
Low Tide
/ height (m)
11:16AM
0.13
11:36AM
0.14
11:47AM
0.16
11:58AM
0.20
12:09PM
0.24
2:45AM
0.37
12:14PM
0.30
3:16AM
0.24
11:54AM
0.36
4:00AM
0.12
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
01
Sunrise5:03--5:03--5:01--5:01--5:01--5:01--5:01--
Sunset-7:09--7:10--7:12--7:13--7:14--7:14--7:15-
part cloud
cloud
rain showers
rain showers
clear
cloud
cloud
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
Rain (mm)
--11-----------------
Temp. °C171717171716161716171716171816212316252420
Feels °C (?)121315131211121210141313131312171711211916
  • 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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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.

View detailed surf forecast for Gas Bay at:
surf-forecast.com

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 12 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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