Jacobs Bay Surf Break

Lat Long: 32.97° S 17.89° E

Jacobs Bay 48 hour detailed Surf Forecast

Issued: 1 pm 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Jacobs Bay sea temperature is
11.4°C
4.2° 

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 (17 Sep):

  • Morning surf: Morning surf (17 Sep, local time) - 6ft (1.9m), 12s period with SW swell.
  • Afternoon surf: Afternoon surf (17 Sep, local time) - 6ft (1.9m), 12s period with SW swell.
  • Evening surf: Evening surf (17 Sep, local time) - 10ft (3.0m), 8s period with S swell.

The current surf forecast for Jacobs Bay at 9PM is: 3.0m 8s primary swell from a South direction and 1.6m 12s secondary swell from a Southwest direction (forecast issued at 01:00pm September 17). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (SAST) & DateWave HeightWave Period
Morning (17 Sep)6ft (1.9m)12s
Afternoon (17 Sep)6ft (1.9m)12s
Evening (17 Sep)10ft (3.0m)8s

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


Short Range Forecast

Mostly dry. Warm (max 26°C on Sun morning, min 11°C on Thu night). Winds decreasing (strong winds from the SSE on Thu afternoon, light winds from the ESE by Sun morning).

Thu
17
Friday
18
Saturday
19
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)
1
1
!
!
2
2
2
1
1
2
2
3
3
3
3
4
3
1
1
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
SW
12
1.9
SW
12
3
S
8
3
S
8
2.5
S
8
2.3
S
8
1.6
SW
11
1.6
SW
11
1.6
SW
11
1.6
SW
11
1.6
SW
13
1.6
SW
13
1.6
SW
13
1.6
SW
13
1.6
SW
12
1.6
SW
12
1.3
SW
12
1.2
SW
12
1.1
SW
12
1.6
SW
14
1.8
SW
14
Wave Graph
Metric surfscale
Energy kJ
944
961
1087
1141
816
692
600
600
600
611
865
878
796
784
736
712
455
407
361
1048
1244
Wind (km/h)
40
SSE
40
SSE
40
SSE
35
SE
30
SE
30
SE
25
ESE
25
SE
25
SSE
30
SSE
25
SSE
20
SSE
20
SE
15
SE
20
SSE
15
SE
20
SSE
20
S
20
S
20
SSE
20
SSE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-off
cross-off
High Tide
6:38PM1.14m
7:13AM1.02m
7:34PM1.01m
8:52AM0.93m
9:41PM0.95m
Low Tide
12:21PM0.51m
00:54AM0.54m
1:06PM0.64m
2:04AM0.64m
3:02PM0.73m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:40
6:40
6:42
 mm
Temp °C
15
17
17
15
13
12
11
12
14
18
21
20
17
15
15
15
19
20
21
23
22
Feels °C
7
8
8
8
6
5
5
6
8
10
15
15
13
11
11
12
15
16
17
19
19
  • 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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