Kosi Bay surfForecast / KZN North / South Africa

information circle48hr Weather and Surf, issued 1 am Friday 15 May 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Kosi Bay surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kosi Bay sea temperature is
25.8° C
(Which is 1.2°C warmer than normal for this time of year)

How big are the waves at Kosi Bay today?

The current surf forecast for Kosi Bay at 10AM is: 1.0m 11s primary swell from a South direction and 1.3m 6s secondary swell from a East direction (forecast issued at 01:00am May 15). The wind direction is predicted to be cross-shore.

Time (SAST) & DateWave HeightWave Period
Morning (15 May)3.5ft (1.1m)11s
Afternoon (15 May)3ft (0.9m)11s
Evening (15 May)2.5ft (0.8m)16s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 25mm), heaviest during Fri night. Warm (max 24°C on Fri afternoon, min 19°C on Sat night). Winds increasing (calm on Fri morning, fresh winds from the S by Sat afternoon).

Friday
15
Saturday
16
Sunday
17
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
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
3
3
2
1
0
0
0
2
3
0
0
0
0
0
0
1
1
2
1
2
0
1
1
2
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1.2
S
12
1.2
S
12
1.1
S
12
1
S
11
0.9
S
11
0.9
S
11
0.6
S
16
1.2
S
16
1.4
S
16
1.4
S
16
1.4
S
15
1.3
S
15
1.3
S
15
1.2
S
14
1.2
S
14
1.2
S
14
1.1
S
13
1.1
S
13
1
S
13
1.2
S
13
1.1
S
13
1
S
12
0.9
S
12
1
E
7
Wave Graph
Metric surfscale
Energy kJ
400
387
314
242
189
189
188
746
1017
979
930
743
723
602
585
545
427
421
350
480
398
290
232
109
Wind (km/h)
5
ENE
0
WNW
0
NNW
10
NE
15
NE
15
ENE
15
ENE
10
NE
10
SSW
20
S
25
SSW
25
SSW
30
S
25
S
20
S
10
S
10
SSW
10
SSW
10
SW
5
SE
15
ENE
15
ENE
15
ENE
10
NE
glassy
glassy
glassy
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
on
cross-on
cross
cross
cross-off
High Tide
2:23AM2.13m
2:42PM2.02m
3:02AM2.23m
3:21PM2.11m
3:41AM2.26m
4:01PM2.15m
Low Tide
8:36AM0.17m
8:46PM0.11m
9:14AM0.07m
9:26PM0.03m
9:53AM0.03m
10:07PM0.02m
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
clear
clear
rain showers
rain showers
rain showers
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:07
5:07
5:07
2
1
1
1
1
1
1
3
3
3
1
1
1
1
1
1
2
2
1
Temp °C
22
21
21
23
24
23
23
23
21
20
20
21
23
22
22
21
20
19
19
22
22
22
22
22
25
24
24
24
24
23
23
25
23
19
18
19
20
20
20
21
20
20
20
23
22
22
21
22
Swell 1
Height (m)
Direction
Period (s)
1.3
E
6
1.3
E
6
1.3
E
6
1.3
E
6
1.2
E
6
0.9
S
11
0.8
S
11
1.3
E
6
1.4
S
16
1.4
S
16
1.4
S
15
1.3
S
15
1.3
S
15
1.2
S
14
1.2
S
14
1.2
S
14
1.1
S
13
1.1
S
13
1
S
13
1.2
S
13
1.1
S
13
1
S
12
0.9
S
12
1
E
7
Energy kJ
137
132
127
128
109
189
149
130
1017
979
930
743
723
602
585
545
427
421
350
480
398
290
232
109
Swell 2
Height (m)
Direction
Period (s)
1.2
S
12
1.2
S
12
1.1
S
12
1
S
11
0.9
S
11
0.5
S
16
0.6
S
16
1.2
S
16
1.2
E
6
1.3
ESE
6
0.9
E
6
0.8
E
6
0.7
E
6
0.7
E
6
0.7
E
6
1
S
6
0.8
S
6
0.7
E
7
0.7
E
7
0.7
E
7
0.8
E
7
0.8
E
7
0.3
S
15
0.7
S
10
Energy kJ
400
387
314
242
189
124
188
746
112
125
64
52
41
41
41
73
51
45
45
47
66
66
39
92
Swell 3
Height (m)
Direction
Period (s)
0.1
S
18
0.1
S
16
0.2
S
16
0.3
SSW
16
0.1
S
21
0.7
E
6
0.7
E
7
0.7
E
7
0.7
S
6
0.5
S
12
Energy kJ
6
5
20
49
8
41
44
45
36
75
Wind waves
Height (m)
Direction
Period (s)
1.2
E
6
1.3
E
6
0.9
S
4
1.3
S
5
1.6
S
6
1.7
S
6
1.6
S
6
1.3
S
6
0.7
S
6
0.9
ENE
7
Energy kJ
112
126
23
87
194
233
193
123
38
86
Nearest Offshore or Glassy
Rating
(10 max)
3
3
2
3
4
3
4
4
3
3
4
4
3
4
3
4
4
3
3
3
2
2
3
2
Distance (km)
0
0
0
258
1051
229
173
144
378
378
228
344
378
1206
228
144
144
144
144
144
850
883
630
0
Best forecast wave conditions in KwaZulu-Natal North Coast
Rating
(10 max)
3
3
3
3
4
4
4
4
4
3
4
4
3
3
3
2
Best forecast wave conditions in South Africa
Rating
(10 max)
4
5
5
5
5
5
5
5
5
5
4
4
4
4
4
4
4
3
3
3
3
3
3
3
Header Global
Rating
(10 max)
4
6
5
5
5
5
5
5
5
5
5
4
5
5
5
5
5
4
5
8
8
9
5
4
  • 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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