Big Bay Surf Break

Lat Long: 33.79° S 18.46° E

Big Bay 48 hour detailed Surf Forecast

Issued: 7 pm 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Big Bay sea temperature is
14.6° C
0.8° 

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 (20 Jul):

  • Afternoon surf: Afternoon surf (20 Jul, local time) - 5ft (1.5m), 9s period with SW swell.
  • Evening surf: Evening surf (20 Jul, local time) - 2.5ft (0.8m), 12s period with SW swell.

The current surf forecast for Big Bay at 11PM is: 0.7m 16s primary swell from a Southwest direction and 1.0m 8s secondary swell from a Southwest direction (forecast issued at 07:00pm July 20). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (20 Jul)--
Afternoon (20 Jul)5ft (1.5m)9s
Evening (20 Jul)2.5ft (0.8m)12s

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


Short Range Forecast

Mostly dry. Very mild (max 15°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light.

Mon
20
Tuesday
21
Wednesday
22
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
1
1
2
3
4
4
3
3
4
4
4
4
3
3
2
2
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SW
8
0.8
SW
12
0.7
SW
16
0.7
SW
16
1.3
SW
15
1.8
SW
14
2.2
SW
14
2.5
SW
14
2.5
SW
13
2.5
SW
13
2.5
SW
13
2.3
SW
13
2.3
SW
12
2.1
SW
12
2.1
SW
12
2.1
SW
12
2
SW
12
1.9
SW
12
1.7
WSW
12
Wave Graph
Metric surfscale
Energy kJ
286
203
271
258
695
1321
1895
2334
2426
2305
2114
1724
1550
1319
1298
1209
1131
1031
893
Wind (km/h)
15
WNW
10
NW
10
N
5
NE
5
NE
5
ENE
5
SE
10
SW
10
SSW
10
SSE
5
SSE
0
SW
0
NE
5
NNE
10
NNW
15
WNW
10
NW
10
NNW
10
N
Wind State
on
cross-on
cross
cross-off
glassy
glassy
glassy
cross
cross
cross-off
glassy
glassy
glassy
cross
cross-on
on
on
cross-on
cross
High Tide
7:45PM1.31m
8:15AM1.07m
8:37PM1.19m
9:22AM1.00m
9:43PM1.11m
Low Tide
2:14AM0.43m
2:09PM0.51m
3:14AM0.51m
3:14PM0.60m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:46
7:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:58
5:59
5:59
 mm
Temp °C
15
14
14
13
12
11
13
15
14
13
12
12
11
11
13
14
14
13
12
Feels °C
12
12
12
11
11
10
12
14
12
12
11
12
11
10
11
11
11
11
9
  • 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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