Treskostraal surfForecast / West Coast / South Africa

information circle48hr Weather and Surf, issued 7 am Monday 18 May 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Treskostraal surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Treskostraal sea temperature is
15.6° C
(Which is 1.4°C colder than average for this time of year)

How big are the waves at Treskostraal today?

The current surf forecast for Treskostraal at 4PM is: 1.6m 14s primary swell from a West-southwest direction and 1.3m 7s secondary swell from a South direction (forecast issued at 07:00am May 18). The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (18 May)5.5ft (1.7m)14s
Afternoon (18 May)5.5ft (1.7m)14s
Evening (18 May)5ft (1.6m)13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Tue night. Warm (max 21°C on Mon afternoon, min 16°C on Mon morning). Wind will be generally light.

Monday
18
Tuesday
19
Wednesday
20
Thu
21
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
2 AM
Rating
(10 max)
3
3
3
3
3
3
3
4
4
4
4
4
1
2
3
3
3
3
2
2
1
1
2
1
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.7
WSW
13
1.7
WSW
14
1.7
WSW
14
1.7
WSW
14
1.6
WSW
14
1.6
WSW
13
1.5
WSW
13
1.5
WSW
13
2.1
S
10
2.1
S
10
2.1
S
10
1.8
S
10
1.6
S
10
1.2
WSW
13
1.1
WSW
13
1.3
S
10
1.3
S
10
1.2
S
10
1.1
S
10
1
S
10
0.7
SW
12
0.7
WSW
11
0.6
WSW
11
0.6
WSW
11
Wave Graph
Metric surfscale
Energy kJ
950
979
1068
1159
971
902
745
734
815
849
882
623
482
444
402
338
352
294
237
188
142
115
81
79
Wind (km/h)
15
S
20
SSE
20
SSE
15
S
20
S
20
SSE
15
SSE
15
SE
10
SSE
10
SE
5
ENE
5
W
15
SSW
20
SSE
15
SE
5
E
5
ENE
5
E
0
ENE
10
WNW
15
WSW
10
SSW
10
WSW
10
SSW
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
off
cross-off
glassy
cross
cross-off
off
cross-off
glassy
cross-off
glassy
on
cross-on
cross
cross-on
cross
High Tide
4:29PM1.57m
4:44AM1.59m
5:18PM1.51m
5:36AM1.47m
6:12PM1.44m
Low Tide
10:15AM0.00m
10:34PM0.15m
11:02AM0.09m
11:27PM0.22m
11:52AM0.19m
00:25AM0.32m
clear
clear
clear
clear
cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:33
7:33
7:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:54
5:54
5:53
1
Temp °C
16
16
17
20
21
20
19
18
17
17
18
18
20
21
20
18
16
17
17
18
18
18
18
17
14
13
14
17
18
17
17
16
16
16
18
18
18
18
18
18
16
17
17
17
16
17
18
17
Swell 1
Height (m)
Direction
Period (s)
1.7
WSW
13
1.7
WSW
14
1.7
WSW
14
1.7
WSW
14
1.6
WSW
14
1.6
WSW
13
1.9
S
9
2
S
9
2.1
S
10
2.1
S
10
2.1
S
10
1.8
S
10
1.6
S
10
1.4
S
10
1.3
S
10
1.3
S
10
1.3
S
10
1.2
S
10
1.1
S
10
1
S
10
0.8
S
8
0.8
S
8
0.8
S
8
0.7
S
7
Energy kJ
950
979
1068
1159
971
902
554
651
815
849
882
623
482
362
318
338
352
294
237
188
78
72
80
49
Swell 2
Height (m)
Direction
Period (s)
0.6
S
10
0.6
S
10
1.3
S
7
1.3
S
7
0.3
SSE
12
1.6
WSW
13
1.5
WSW
13
1.5
WSW
13
1.4
WSW
13
1.3
WSW
13
1.3
WSW
13
1.3
WSW
13
1.2
WSW
13
1.2
WSW
13
1.1
WSW
13
1
WSW
12
1
WSW
12
0.9
WSW
12
0.9
WSW
12
0.8
WSW
12
0.7
SW
12
0.7
WSW
11
0.6
WSW
11
0.6
WSW
11
Energy kJ
71
71
166
183
30
902
745
734
659
615
528
520
451
444
402
314
304
226
222
180
142
115
81
79
Swell 3
Height (m)
Direction
Period (s)
0.1
W
12
0.1
W
12
0.5
S
10
0.4
S
10
0.3
SSE
12
0.1
S
16
0.1
S
16
0.1
S
15
0.1
SW
17
0.2
SSW
16
0.4
SSE
11
0.4
SSE
11
0.4
SW
15
0.4
SW
14
Energy kJ
3
3
51
35
31
5
5
4
11
25
38
39
75
73
Wind waves
Height (m)
Direction
Period (s)
1.5
S
7
1.3
S
7
1.4
S
8
1.7
S
9
Energy kJ
208
157
235
425
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
2
3
3
3
3
3
2
1
1
2
2
2
Distance (km)
11
11
11
11
11
11
11
0
0
0
0
0
15
11
0
0
0
0
0
15
12
11
11
11
Best forecast wave conditions in West Coast
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
3
3
3
3
3
3
3
2
1
2
2
2
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
3
4
4
4
4
Header Global
Rating
(10 max)
4
6
5
4
4
5
5
4
4
4
4
4
4
4
4
4
5
5
4
5
5
5
5
5
  • 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

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