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Surf Forecasts:

Gnarabup surfForecast / WA – Margaret River / Australia

information circle48hr Weather and Surf, issued 1 am Thursday 18 Sep 2025 AWST
Forecast update in hr  min  s Forecast update imminent
Gnarabup surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Gnarabup sea temperature is
17.5° C
 (Which is slightly warmer than usual)

How big are the waves at Gnarabup today?

The current surf forecast for Gnarabup at 6AM is: 3.5m 12s primary swell from a Southwest direction and 1.8m 14s secondary swell from a Southwest direction (forecast issued at 01:00am September 18). An open ocean swell of 0.4m 10s is not directed at the surf break. The wind direction is predicted to be onshore.

Time (AWST) & DateWave HeightWave Period
Morning (18 Sep)10ft (3.0m)12s
Afternoon (18 Sep)13ft (4.0m)14s
Evening (18 Sep)13ft (4.0m)14s

Table - waves today at Gnarabup. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Thursday
18
Friday
19
Saturday
20
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
6
5
5
4
5
5
3
4
4
2
1
1
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3.5
WSW
3.5
SW
3.5
SW
3
SW
4
SW
4
SW
4
WSW
4
WSW
4.5
SW
4.5
SW
5
SW
4.5
SW
4.5
SW
4.5
SW
4
SW
4
SW
3.5
SW
3.5
SW
3
SW
3
SW
3
SW
3
SW
2.5
SW
2.5
SW
Period(s) (?)121112121414141414141414141414141414141414131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)317433132969277862276307648468527418844990508929788873926448591851914458382734482930269323902108
Wind
(km/h)
30
WSW
25
WSW
25
SW
25
SW
25
WSW
25
WSW
30
WSW
35
WSW
30
SW
30
SW
25
SSW
20
SSW
15
SSW
20
SSW
20
SSW
15
S
15
S
10
S
10
SSW
5
S
10
SW
20
SW
15
SSW
15
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononononononononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscross-
on		cross-
on		crosscross-
on		cross-
on		cross-
on		cross
High Tide
/ height (m)
7:45AM
0.69
8:28AM
0.66
11:16PM
0.38
9:04AM
0.62
Low Tide
/ height (m)
4:24PM
0.09
4:40PM
0.16
1:53AM
0.37
4:42PM
0.23
Thursday
18
Friday
19
Saturday
20
Sunrise---6:16-------6:15-------6:13----
Sunset------6:12-------6:13-------6:14-
cloud
cloud
cloud
cloud
cloud
cloud
cloud
rain showers
part cloud
cloud
light rain
rain showers
rain showers
clear
clear
clear
clear
cloud
cloud
part cloud
clear
clear
clear
clear
Rain (mm)
-------1--111-----------
Temp. °C151414141414151515151516161616151414141415151414
Feels °C (?)88887888991013131313131212131313121111
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for WA - Margaret River

  1. weather stationWind Update Wind reports 11 km away suggest it is still onshore at Gnarabup (light winds from the SW at Witchcliffe). A 3.7m groundswell from the SW

    1 hour 31 minutes ago Gnarabup
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1 h 31 min ago

17 km/h
SW
Onshore
Please reload the page to see if there are any updates.

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View detailed surf forecast for Gnarabup at:
surf-forecast.com

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