Big Bay Surf Break

Lat Long: 33.79° S 18.46° E

Big Bay 48 hour detailed Surf Forecast

Issued: 1 pm 21 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Bay sea temperature is
14.0° C
1.5° 

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 (21 Jul):

  • Morning surf: Morning surf (21 Jul, local time) - 6ft (1.9m), 14s period with SW swell.
  • Afternoon surf: Afternoon surf (21 Jul, local time) - 8ft (2.5m), 14s period with SW swell.
  • Evening surf: Evening surf (21 Jul, local time) - 8ft (2.5m), 13s period with SW swell.

The current surf forecast for Big Bay at 8PM is: 2.5m 13s primary swell from a Southwest direction (forecast issued at 01:00pm July 21). The wind direction is predicted to be cross-offshore and the swell rating is 4.

Time (SAST) & DateWave HeightWave Period
Morning (21 Jul)6ft (1.9m)14s
Afternoon (21 Jul)8ft (2.5m)14s
Evening (21 Jul)8ft (2.5m)13s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Thu morning. Very mild (max 14°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light.

Tue
21
Wednesday
22
Thursday
23
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
3
3
4
4
4
4
4
3
2
2
3
2
2
2
2
1
0
3
5
9
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)
2.2
SW
14
2.5
SW
14
2.5
SW
13
2.5
SW
13
2.4
SW
13
2.3
SW
13
2.3
SW
12
2.1
SW
12
2.1
SW
12
2.1
SW
12
1.9
SW
12
1.9
SW
12
1.7
WSW
12
1.7
WSW
12
1.7
WSW
12
1.8
WSW
12
2.2
SW
11
2.1
SW
11
2.1
SW
11
2.3
SW
18
4
SW
17
Wave Graph
Metric surfscale
Energy kJ
1895
2334
2310
2305
1886
1724
1550
1319
1209
1229
1048
1031
808
789
835
844
1070
990
1087
3193
8359
Wind (km/h)
5
NE
10
SW
10
SW
5
SSE
5
SE
5
S
5
NE
10
NE
5
WNW
15
WNW
10
WNW
10
NW
10
N
15
NNE
20
NNE
20
NNE
25
N
20
N
10
N
10
ENE
10
ESE
Wind State
glassy
cross-on
cross
cross-off
cross-off
glassy
glassy
cross-off
on
on
on
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross
cross-off
off
High Tide
8:15AM1.07m
8:37PM1.19m
9:22AM1.00m
9:43PM1.11m
10:48AM0.98m
Low Tide
2:09PM0.51m
3:14AM0.51m
3:14PM0.60m
4:34AM0.55m
4:48PM0.64m
clear
clear
clear
clear
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
light rain
light rain
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:45
7:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:59
5:59
6:00
 mm
1
1
Temp °C
13
14
14
13
12
12
12
11
13
14
14
13
12
11
10
11
12
13
13
13
13
Feels °C
12
12
13
12
11
11
11
9
12
11
12
11
10
8
6
6
7
9
11
12
12
  • 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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