Goolwa Rivermouth Surf Break

Lat Long: 35.56° S 138.88° E

Goolwa Rivermouth Surf Forecast and Surf Report

Issued: 8 am 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Goolwa Rivermouth sea temperature is
14.7°C
0.4° 

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


Goolwa Rivermouth surf forecast from 20 Sep 2026:

  • Best quality surf: Monday 21 Sep, 3PM (local time) - 10ft (3.0m), 15s period, SSW swell with cross-onshore winds.
  • Most powerful swell: Monday 21 Sep, 3PM (local time) - 10ft (3.0m), 15s period, SSW swell with 4,190 kJ wave energy.
  • Next surfable swell (1★+): Monday 21 Sep, 3PM (local time) - 10ft (3.0m), 15s period with SSW swell.

Best Forecast Surf Conditions for Goolwa Rivermouth this week:

The surf forecast for Goolwa Rivermouth over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 21) at 3PM. The primary swell is predicted to be 3.0m and 15s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Goolwa Rivermouth in the next 16 days are 3.0m 15s and forecast to arrive on Monday (Sep 21) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Sep 27) at 12AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Mon 21st Sep)10ft (3.0m) 15s
Best Surf 3PM (Mon 21st Sep)10ft (3.0m) 15s
Most Powerful 3PM (Mon 21st Sep)10ft (3.0m) 15s

Table - best surf conditions forecast for Goolwa Rivermouth over the next 16 days.


Short Range Forecast

Mostly dry. Warm (max 21°C on Sun morning, min 6°C on Mon night). Winds decreasing (strong winds from the NW on Sun morning, light winds from the ENE by Tue night).

Days 4-6 Weather Summary

Mostly dry. Warm (max 29°C on Thu afternoon, min 13°C on Fri night). Wind will be generally light.

Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
!
!
!
!
!
4
4
3
3
3
1
0
1
1
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SSW
16
1.4
SW
15
2.2
SW
14
2.5
SSW
16
3
SSW
15
3
SSW
14
2.5
SSW
15
3
SSW
16
2.4
SSW
15
1.8
SSW
14
1.7
SSW
14
1.5
SSW
14
1.4
SW
13
1.2
SW
13
1.1
SW
12
1.1
SW
12
1.1
SW
14
1.1
SW
15
0.9
SW
20
1.5
SW
19
2
SW
17
Wave Graph
Metric surfscale
Energy kJ
811
869
1918
3549
4190
3484
2957
4070
2414
1332
1005
845
642
501
398
361
431
543
575
1609
2347
Wind (km/h)
45
NW
30
W
30
SSW
25
SSE
20
SSE
20
ESE
20
NE
15
E
15
NE
20
NE
10
ENE
15
NNE
20
NE
10
N
5
WSW
10
SSW
10
SSE
15
SSE
35
SSE
35
SSE
30
E
Wind State
cross-off
cross-on
on
cross-on
cross-on
cross
cross-off
cross-off
off
off
cross-off
off
off
cross-off
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-off
High Tide
10:34AM0.65m
11:45AM0.70m
3:24AM0.36m
12:29PM0.73m
2:27AM0.39m
1:04PM0.73m
2:20AM0.45m
1:37PM0.71m
2:27AM0.53m
2:08PM0.65m
2:41AM0.62m
Low Tide
8:39PM0.08m
8:17PM0.08m
8:10PM0.07m
4:54AM0.36m
8:12PM0.06m
6:22AM0.30m
8:17PM0.07m
7:14AM0.24m
8:24PM0.09m
8:01AM0.19m
8:29PM0.12m
clear
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:05
6:05
6:03
6:01
6:01
5:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:07
6:08
6:09
6:09
6:10
6:12
6:13
 mm
Temp °C
21
18
15
11
11
11
14
16
14
21
23
21
27
29
26
21
21
22
11
13
11
Feels °C
12
13
11
4
5
5
10
11
10
17
20
18
23
26
23
19
18
20
5
6
5
  • 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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Information about the Goolwa Rivermouth Surf forecast

The above surf forecast table for Goolwa Rivermouth provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Goolwa Rivermouth can be found by selecting the local surf guide option on the grey menu. Our Goolwa Rivermouth 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 (Goolwa Rivermouth) 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 Goolwa Rivermouth 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.

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