Grunters Surf Break

Lat Long: 34.01° S 114.99° E

Grunters 48 hour detailed Surf Forecast

Issued: 7 am 18 Sep 2026 (local time)

Forecast update in  hr  min

Today's Grunters sea temperature is
17.9°C
0.9° 

Grunters surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Grunters today (18 Sep):

  • Morning surf: Morning surf (18 Sep, local time) - 4.5ft (1.3m), 16s period with WSW swell.
  • Afternoon surf: Afternoon surf (18 Sep, local time) - 5.5ft (1.7m), 17s period with WSW swell.
  • Evening surf: Evening surf (18 Sep, local time) - 7ft (2.2m), 16s period with WSW swell.

The current surf forecast for Grunters at 4PM is: 1.8m 17s primary swell from a West-southwest direction and 1.3m 12s secondary swell from a West direction, 2.5m 7s secondary swell from a West-northwest direction (forecast issued at 07:00am September 18). The wind direction is predicted to be cross-offshore.

Time (AWST) & DateWave HeightWave Period
Morning (18 Sep)4.5ft (1.3m)16s
Afternoon (18 Sep)5.5ft (1.7m)17s
Evening (18 Sep)7ft (2.2m)16s

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


Short Range Forecast

Moderate rain (total 16mm), heaviest on Fri night. Warm (max 21°C on Fri afternoon, min 11°C on Sun night). Winds decreasing (near gales from the NW on Fri night, light winds from the NNW by Sun night).

Friday
18
Saturday
19
Sunday
20
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
3
2
2
2
0
0
0
0
!
!
!
0
0
0
0
0
2
2
3
4
4
6
7
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
WSW
12
1.3
WSW
16
1.7
WSW
17
1.7
WSW
17
1.9
WSW
16
2.1
WSW
16
2.3
WSW
16
5
WNW
10
6.5
WNW
12
7
W
13
7
W
13
6
W
13
5.5
WSW
12
3.5
W
13
3.5
WSW
11
3.5
WSW
13
3
WSW
12
3
WSW
12
3
SW
13
3
SW
14
3.5
SW
16
3.5
SW
16
3.5
SW
15
Wave Graph
Metric surfscale
Energy kJ
703
788
1626
1796
1975
2343
2682
4888
13059
15630
16237
12350
8448
3781
2975
3950
2945
2909
3122
3419
5113
6208
6198
Wind (km/h)
20
NNE
25
NNE
30
NNE
35
NNE
45
WNW
45
NNW
45
N
55
NW
60
NW
55
WNW
50
W
45
W
35
WSW
30
W
25
WSW
25
SW
20
SSW
20
SSE
15
SSE
10
S
20
S
20
SE
15
E
Wind State
cross-off
cross-off
cross-off
cross-off
cross-on
cross
cross-off
cross
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross-on
cross
cross
cross
cross
cross-off
cross-off
High Tide
00:26AM0.63m
4:40AM0.60m
Low Tide
2:32PM0.12m
2:55PM0.10m
3:14PM0.10m
clear
clear
clear
part cloud
light rain
light rain
light rain
rain showers
light rain
light rain
light rain
light rain
cloud
cloud
part cloud
light rain
part cloud
cloud
cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:13
6:14
 mm
1
1
3
2
2
3
2
1
1
Temp °C
15
16
20
21
14
15
14
15
14
14
15
15
15
16
16
15
15
14
14
16
16
12
13
Feels °C
12
12
16
16
6
7
5
5
3
3
5
6
8
11
11
10
11
11
10
13
12
8
10
  • 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
How to use the Wavefinder 

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 Grunters 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.


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