Big Bay Surf Break

Lat Long: 33.79° S 18.46° E

Big Bay 48 hour detailed Surf Forecast

Issued: 1 pm 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big Bay sea temperature is
12.6°C
3.0° 

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 (13 Sep):

  • Morning surf: Morning surf (13 Sep, local time) - 7ft (2.2m), 14s period with SW swell.
  • Afternoon surf: Afternoon surf (13 Sep, local time) - 6ft (1.8m), 14s period with SW swell.
  • Evening surf: Evening surf (13 Sep, local time) - 5ft (1.6m), 13s period with SW swell.

The current surf forecast for Big Bay at 9PM is: 1.6m 13s primary swell from a Southwest direction and 0.6m 7s secondary swell from a South direction (forecast issued at 01:00pm September 13). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (13 Sep)7ft (2.2m)14s
Afternoon (13 Sep)6ft (1.8m)14s
Evening (13 Sep)5ft (1.6m)13s

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


Short Range Forecast

Heavy rain (total 31mm), heaviest during Tue night. Very mild (max 17°C on Sun afternoon, min 12°C on Tue night). Winds increasing (light winds from the W on Sun afternoon, fresh winds from the NW by Tue afternoon).

Sun
13
Monday
14
Tuesday
15
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
1
3
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
2.1
SW
14
1.8
SW
14
1.8
SW
14
1.6
SW
13
1.6
SW
13
1.5
SW
13
1.3
SW
13
1.3
SW
13
1.2
SW
12
1.1
SW
12
1
SW
12
1.8
NW
7
1.6
NW
8
1.5
NW
8
1.3
NW
8
0.9
SW
11
0.5
SW
18
0.8
SW
17
1.3
SW
16
1.7
SW
15
3
WSW
15
Wave Graph
Metric surfscale
Energy kJ
1812
1280
1215
933
827
732
581
504
430
361
272
334
292
244
202
194
165
346
813
1349
3243
Wind (km/h)
5
ENE
20
WNW
10
W
10
N
15
NNW
15
N
20
N
25
N
30
N
35
NNW
30
NNW
30
NNW
20
N
25
N
25
N
25
NNW
35
NW
35
NW
30
NNW
30
NNW
25
N
Wind State
cross-off
on
on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
4:29PM1.62m
4:48AM1.45m
4:59PM1.52m
5:18AM1.35m
5:29PM1.40m
Low Tide
10:19AM0.08m
10:45PM0.07m
10:49AM0.16m
11:15PM0.17m
11:18AM0.26m
cloud
light rain
light rain
rain showers
light rain
light rain
light rain
light rain
cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
rain showers
part cloud
part cloud
cloud
light rain
mod rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:47
6:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:36
6:36
6:37
 mm
2
2
1
2
1
1
1
1
1
7
Temp °C
22
17
16
15
15
15
15
15
16
17
17
15
14
14
14
15
16
16
16
15
14
Feels °C
22
15
16
15
13
13
12
11
11
11
12
11
11
10
10
12
10
9
11
10
10
  • 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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