Jacobs Bay Surf Break

Lat Long: 32.97° S 17.89° E

Jacobs Bay 48 hour detailed Surf Forecast

Issued: 7 am 20 Sep 2026 (local time)

Forecast update in  hr  min

Today's Jacobs Bay sea temperature is
11.6°C
4.0° 

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


How big are the waves at Jacobs Bay today (20 Sep):

  • Morning surf: Morning surf (20 Sep, local time) - 6ft (1.9m), 13s period with SW swell.
  • Afternoon surf: Afternoon surf (20 Sep, local time) - 6ft (1.8m), 13s period with SW swell.
  • Evening surf: Evening surf (20 Sep, local time) - 5.5ft (1.7m), 13s period with WSW swell.

The current surf forecast for Jacobs Bay at 2PM is: 1.8m 13s primary swell from a Southwest direction and 0.8m 6s secondary swell from a South direction (forecast issued at 07:00am September 20). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (20 Sep)6ft (1.9m)13s
Afternoon (20 Sep)6ft (1.8m)13s
Evening (20 Sep)5.5ft (1.7m)13s

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


Short Range Forecast

Mostly dry. Warm (max 28°C on Tue morning, min 14°C on Tue night). Wind will be generally light.

Sunday
20
Monday
21
Tuesday
22
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)
4
4
4
2
1
3
3
3
3
3
2
3
1
2
2
3
3
2
0
0
2
3
1
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)
2
SW
13
1.9
SW
13
1.9
SW
13
1.8
SW
13
1.7
WSW
13
1.7
WSW
13
1.5
WSW
12
1.5
WSW
12
1.4
WSW
12
1.3
WSW
12
1.3
WSW
12
1.2
SW
12
1.2
WSW
12
1.2
SW
11
1.1
SW
11
1.1
SW
11
1.1
SW
11
1.1
SW
11
1.2
SW
13
1.1
SW
13
1.1
SW
12
1.4
SW
12
1.3
SW
12
Wave Graph
Metric surfscale
Energy kJ
1367
1261
1200
1094
918
890
714
647
554
480
472
414
359
373
283
314
314
297
501
424
379
546
427
Wind (km/h)
15
SE
10
SE
10
SSE
15
SSW
20
S
15
S
15
SSE
10
SSE
10
SSE
10
SSE
10
S
10
SSW
15
S
15
SSE
10
SE
10
ESE
15
ENE
15
NNE
30
N
25
NW
15
W
5
NE
10
N
Wind State
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross
cross-on
on
glassy
cross
High Tide
11:18AM0.97m
11:38PM1.01m
12:24PM1.09m
00:33AM1.12m
1:01PM1.23m
Low Tide
4:49AM0.66m
5:48PM0.68m
6:11AM0.56m
6:42PM0.56m
6:52AM0.44m
7:17PM0.43m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:39
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:43
6:43
6:44
 mm
Temp °C
23
22
26
25
23
24
22
23
21
21
25
25
25
25
25
24
24
25
28
24
20
17
16
Feels °C
21
20
25
22
20
21
20
22
20
20
25
24
23
23
25
23
23
22
23
20
18
17
15
  • 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 Jacobs 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.


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