Big Bay Surf Break

Lat Long: 33.79° S 18.46° E

Big Bay 48 hour detailed Surf Forecast

Issued: 7 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big Bay sea temperature is
13.1°C
2.5° 

Big 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 Big Bay today (12 Sep):

  • Afternoon surf: Afternoon surf (12 Sep, local time) - 7ft (2.2m), 15s period with SW swell.
  • Evening surf: Evening surf (12 Sep, local time) - 8ft (2.4m), 16s period with SW swell.

The current surf forecast for Big Bay at 10PM is: 2.4m 16s primary swell from a Southwest direction and 1.2m 7s secondary swell from a South-southeast direction (forecast issued at 07:00pm September 12). The wind direction is predicted to be offshore and the swell rating is 5.

Time (SAST) & DateWave HeightWave Period
Morning (12 Sep)--
Afternoon (12 Sep)7ft (2.2m)15s
Evening (12 Sep)8ft (2.4m)16s

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


Short Range Forecast

Light rain (total 6mm), mostly falling on Sun night. Warm (max 21°C on Sun morning, min 14°C on Mon night). Winds increasing (light winds from the NNE on Sun morning, fresh winds from the NW by Tue afternoon).

Sat
12
Sunday
13
Monday
14
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
5
5
4
4
4
3
3
3
3
1
2
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.4
SW
16
2.4
SW
16
2.4
SW
16
2.3
SW
15
2.2
SW
15
2.3
SW
14
2.1
SW
14
1.8
SW
14
1.8
SW
14
1.6
SW
13
1.6
SW
13
1.4
SW
13
1.3
SW
13
1.3
SW
13
1.2
SW
12
1.1
SW
12
1.1
SW
12
1
SW
12
1
SW
12
Wave Graph
Metric surfscale
Energy kJ
3059
2875
2768
2208
2010
2119
1812
1280
1119
933
834
663
581
563
430
361
355
268
263
Wind (km/h)
25
SE
15
SE
15
ESE
15
ESE
10
ESE
10
ENE
5
NNE
10
WNW
5
WSW
5
NW
10
NNW
10
N
15
N
20
NNW
25
NNW
25
NNW
30
NW
25
N
25
N
Wind State
off
off
off
off
off
cross-off
cross
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross
High Tide
3:58PM1.68m
4:17AM1.52m
4:29PM1.62m
4:48AM1.45m
4:59PM1.52m
Low Tide
10:15PM0.01m
10:19AM0.08m
10:45PM0.07m
10:49AM0.16m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
light rain
light rain
cloud
light rain
light rain
cloud
part cloud
part cloud
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:35
6:36
6:36
 mm
1
1
2
2
Temp °C
19
18
16
16
16
17
21
17
17
16
15
15
15
15
17
17
16
15
15
Feels °C
15
16
14
14
15
17
21
16
17
16
14
14
14
12
13
12
11
11
11
  • 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 Big 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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