Goolwa Rivermouth surfForecast / SA – East Coast / Australia

information circle16 Day Weather and Surf, issued 8 pm Tuesday 19 May 2026 ACST
Forecast update in hr  min  s Forecast update imminent
Goolwa Rivermouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Goolwa Rivermouth sea temperature is
16.7° C
(Which is normal for this time of year)

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 Thursday (May 21) at 12AM. The primary swell is predicted to be 1.5m and 12s period with a secondary swell of 1.1m and 16s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Goolwa Rivermouth in the next 16 days are 1.9m 15s and forecast to arrive on Friday (May 22) at 9PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Saturday (May 23) at 3AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Thu 21st May)5ft (1.5m) 12s
Best Surf12AM (Thu 21st May)5ft (1.5m) 12s
Most Powerful 9PM (Fri 22nd May)6ft (1.9m) 15s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 18°C on Fri afternoon, min 13°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 19°C on Sat afternoon, min 11°C on Sun night). Wind will be generally light.

Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tue
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
1
4
4
3
3
3
4
4
3
3
3
1
0
0
0
0
1
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
SW
11
1.8
SW
10
1.7
SW
10
1.5
SW
12
1.8
SW
14
1.7
SW
14
1.4
SW
12
1.4
SW
13
1.6
SW
15
1.9
SW
15
1.5
SW
14
1.4
SW
13
1.6
SW
13
1.8
SW
12
1.7
SSW
11
1.5
SSW
11
1.3
SSW
10
1.2
SSW
10
1.1
SW
14
1.5
SSW
13
1.3
SSW
13
Wave Graph
Metric surfscale
Energy kJ
663
634
628
583
1321
1138
549
623
1088
1446
840
642
837
887
657
513
340
261
482
796
581
Wind (km/h)
20
W
20
WSW
20
SW
5
W
10
NNE
10
ESE
10
NNE
15
NNE
10
NE
15
NNE
10
NNE
5
W
5
W
10
S
25
SSE
20
SSE
20
ESE
20
SSE
20
ESE
15
E
5
ESE
cross-on
cross-on
on
glassy
off
cross
off
off
cross-off
off
off
glassy
glassy
cross-on
cross-on
cross-on
cross
cross-on
cross
cross-off
cross
High Tide
4:45PM0.97m
5:25PM0.91m
6:50AM0.13m
6:01PM0.82m
8:13AM0.21m
6:31PM0.72m
6:55PM0.62m
11:00AM0.41m
7:06PM0.52m
11:27AM0.51m
Low Tide
2:02AM0.01m
2:47AM0.05m
3:05AM0.10m
7:45AM0.13m
3:03AM0.15m
8:41AM0.20m
3:00AM0.18m
3:02AM0.18m
12:30PM0.40m
3:08AM0.18m
part cloud
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:07
7:07
7:09
7:09
7:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:14
5:14
5:13
5:13
5:12
5:12
Temp °C
15
16
16
15
16
16
15
17
18
16
18
19
17
15
14
13
11
12
13
10
12
12
13
12
14
15
13
14
14
15
13
15
18
15
14
10
9
7
7
9
7
10
Swell 1
Height (m)
Direction
Period (s)
0.7
SW
18
0.9
SW
16
1.7
SW
10
1.5
SW
12
1.8
SW
14
1.7
SW
14
1.4
SW
12
1.4
SW
13
1.6
SW
15
1.9
SW
15
1.5
SW
14
1.4
SW
13
1.6
SW
13
1.8
SW
12
1.7
SSW
11
1.5
SSW
11
1.3
SSW
10
1.2
SSW
10
1.2
SSW
11
1.5
SSW
13
1.3
SSW
13
Energy kJ
319
395
628
583
1321
1138
549
623
1088
1446
840
642
837
887
657
513
340
261
300
796
581
Swell 2
Height (m)
Direction
Period (s)
0.9
SSW
16
1.1
SW
16
0.1
S
20
0.1
SW
18
0.4
SW
16
0.6
SSW
16
1.1
SW
14
0.4
SSW
16
Energy kJ
452
558
7
13
68
179
482
104
Swell 3
Height (m)
Direction
Period (s)
0.6
SW
11
Energy kJ
104
Wind waves
Height (m)
Direction
Period (s)
1.7
SW
11
1.8
SW
10
0.3
NNE
2
0.4
NNE
3
0.5
N
3
0.4
NW
4
Energy kJ
663
634
1
3
5
4
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
4
4
4
3
3
4
4
3
3
3
3
2
2
2
2
3
3
3
Distance (km)
17
155
155
0
0
38
0
0
0
0
0
0
0
184
185
188
186
186
19
10
19
Best forecast wave conditions in South Australia - East Coast
Rating
(10 max)
3
4
4
4
4
4
5
4
3
3
5
3
4
4
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
5
4
5
4
4
4
4
7
5
4
4
5
4
4
4
4
3
4
4
4
Header Global
Rating
(10 max)
4
5
5
4
4
4
4
5
5
7
5
5
9
6
5
5
4
4
4
4
4
  • 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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