Big Bay Surf Break

Lat Long: 33.79° S 18.46° E

Big Bay 48 hour detailed Surf Forecast

Issued: 7 pm 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Big Bay sea temperature is
12.8°C
2.8° 

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 (16 Sep):

  • Morning surf: Morning surf (16 Sep, local time) - 10ft (3.0m), 13s period with SW swell.
  • Afternoon surf: Afternoon surf (16 Sep, local time) - 7ft (2.2m), 13s period with WSW swell.
  • Evening surf: Evening surf (16 Sep, local time) - 6ft (1.8m), 13s period with SW swell.

The current surf forecast for Big Bay at 1AM is: 3.0m 14s primary swell from a West-southwest direction and 1.7m 7s secondary swell from a West-northwest direction (forecast issued at 07:00pm September 15). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (16 Sep)10ft (3.0m)13s
Afternoon (16 Sep)7ft (2.2m)13s
Evening (16 Sep)6ft (1.8m)13s

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


Short Range Forecast

Moderate rain (total 18mm), heaviest on Tue night. Very mild (max 19°C on Fri afternoon, min 12°C on Tue night). Mainly strong winds.

Tue
15
Wednesday
16
Thursday
17
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)
0
0
2
4
4
3
3
1
1
2
2
2
2
2
2
2
1
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SW
16
1.6
SW
15
2.3
SW
15
3
WSW
14
3
WSW
14
2.5
WSW
13
3
SW
13
2.4
WSW
13
1.9
WSW
13
1.6
SW
13
2
SW
13
2.1
SW
13
2.1
SW
13
2
SW
12
1.9
SW
12
1.9
SW
12
1.9
SW
12
1.7
SW
12
1.6
SW
12
Wave Graph
Metric surfscale
Energy kJ
813
1251
2215
3702
3021
2515
2677
1901
1193
905
1306
1352
1429
1131
1031
1025
945
794
710
Wind (km/h)
35
NNW
25
NNW
15
WNW
10
SSW
25
S
30
SSE
35
SSE
40
SSE
35
SSE
30
SE
30
SE
30
SE
30
SE
30
SE
35
SE
30
SE
35
SSE
35
SE
25
SE
Wind State
cross-on
cross-on
on
cross
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
High Tide
5:29PM1.40m
5:49AM1.24m
6:00PM1.27m
6:24AM1.13m
6:36PM1.13m
Low Tide
11:44PM0.28m
11:48AM0.38m
00:15AM0.41m
12:20PM0.51m
cloud
light rain
mod rain
mod rain
rain showers
part cloud
part cloud
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
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:37
 mm
2
8
7
1
Temp °C
16
14
13
12
12
13
14
16
16
14
13
12
12
12
15
18
17
14
13
Feels °C
10
10
11
10
7
6
6
7
8
7
7
6
6
5
7
10
9
7
7
  • 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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