Big Bay Surf Break

Lat Long: 33.79° S 18.46° E

Big Bay 48 hour detailed Surf Forecast

Issued: 7 am 18 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 (18 Jul):

  • Morning surf: Morning surf (18 Jul, local time) - 4ft (1.2m), 9s period with SW swell.
  • Afternoon surf: Afternoon surf (18 Jul, local time) - 3.5ft (1.0m), 13s period with SW swell.
  • Evening surf: Evening surf (18 Jul, local time) - 5ft (1.5m), 12s period with SW swell.

The current surf forecast for Big Bay at 1PM is: 0.9m 13s primary swell from a Southwest direction and 1.1m 9s secondary swell from a Southwest direction (forecast issued at 07:00am July 18). The wind direction is predicted to be onshore.

Time (SAST) & DateWave HeightWave Period
Morning (18 Jul)4ft (1.2m)9s
Afternoon (18 Jul)3.5ft (1.0m)13s
Evening (18 Jul)5ft (1.5m)12s

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


Short Range Forecast

Mostly dry. Very mild (max 17°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light.

Saturday
18
Sunday
19
Monday
20
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
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
2
2
2
2
2
2
2
2
2
2
1
1
2
2
4
3
3
3
3
2
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
SSW
9
1.2
SW
9
1.4
SW
9
0.9
SW
13
1
SW
13
1.5
SW
12
1.4
SW
12
1.4
SW
12
1.4
SW
12
1.3
SW
12
1.3
SW
12
1.5
SW
12
1.8
SW
11
1.8
SW
11
2.1
SW
11
2.1
SW
10
2
SW
10
1.8
SW
10
1.7
SW
9
1.6
SW
9
1.4
SW
8
0.8
SW
12
0.7
SW
16
Wave Graph
Metric surfscale
Energy kJ
180
246
307
299
315
677
603
574
565
503
503
593
729
773
963
901
773
640
491
427
279
203
268
Wind (km/h)
5
N
5
N
5
NNW
10
NW
10
WNW
10
NW
10
NNW
10
N
10
N
15
NNE
15
N
10
W
10
SW
5
SSW
5
SE
5
E
5
ENE
5
ENE
0
NW
10
WSW
5
WSW
5
SSW
5
SE
Wind State
glassy
glassy
cross-on
on
on
cross-on
cross-on
cross-on
cross
cross
cross-on
on
cross-on
cross
glassy
glassy
glassy
glassy
glassy
cross-on
cross-on
cross
glassy
High Tide
6:19PM1.52m
6:38AM1.28m
7:01PM1.42m
7:23AM1.17m
7:45PM1.31m
Low Tide
12:00PM0.16m
00:39AM0.23m
12:39PM0.27m
1:24AM0.33m
1:21PM0.39m
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:47
7:47
7:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:57
5:58
 mm
Temp °C
15
14
16
17
16
15
15
14
13
13
15
15
15
14
13
12
12
12
13
15
14
14
13
Feels °C
15
14
16
16
15
14
14
13
11
11
13
14
14
13
13
11
11
11
12
13
12
13
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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