Kosi Bay surfForecast / KZN North / South Africa

information circle48hr Weather and Surf, issued 1 am Saturday 19 Jul 2025 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
23.0° C
(Which is slightly warmer than usual)


How big are the waves at Kosi Bay today?

The current surf forecast for Kosi Bay at 5AM is: 3.0m 8s primary swell from a South direction and 0.6m 11s secondary swell from a East direction, 0.5m 18s secondary swell from a South direction (forecast issued at 01:00am July 19). The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (19 Jul)8ft (2.4m)8s
Afternoon (19 Jul)5ft (1.6m)8s
Evening (19 Jul)5.5ft (1.7m)7s

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

Updates in  hr  min  s Forecast update imminent
Saturday
19
Sunday
20
Monday
21
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.1
S
2.5
S
3
S
2.5
S
2
S
1.6
S
1.6
S
1.8
SSE
1.6
SSE
1.4
SSE
1.3
SSE
1.2
SSE
0.9
E
0.9
E
0.9
E
0.9
E
1
E
1
E
0.9
E
0.8
ENE
0.6
E
0.7
E
0.7
E
1.2
NE
Period(s) (?)7888888777778888888811885
Wave
Graph
(?)Metric surfscale
Energy (?)686116014901182840591560606479413371279279255228242218222207207208161170227
Wind
(km/h)
30
SSW
35
SSW
35
SSW
30
S
25
SSE
25
SSE
20
SSE
15
S
15
S
15
SSE
15
SSE
10
SSE
10
SE
10
E
10
ENE
15
NE
15
N
15
NNW
15
NNW
20
NNW
25
N
25
NNE
25
NNE
20
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
on
cross-
on
cross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
onononcross-
on
crosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross
High Tide
/ height (m)
9:15PM
1.71
9:42AM
1.51
10:38PM
1.60
11:22AM
1.46
12:18AM
1.60
1:01PM
1.54
Low Tide
/ height (m)
3:36AM
0.68
4:00PM
0.64
5:07AM
0.73
5:39PM
0.68
6:43AM
0.68
7:12PM
0.60
Saturday
19
Sunday
20
Monday
21
Sunrise---6:35-------6:35-------6:33----
Sunset------5:14-------5:14-------5:15-
clearpart cloudpart cloudrain showersrain showersthunderstorm thunderstorm rain showersrain showersrain showersrain showersrain showersrain showersclearclearclearclearclearclearclearclearclearclearclear
Rain (mm)
---1343332211-----------
Temp. °C191919191919191818181819202020202019181721222121
Feels °C (?)151414151616171717171718201919191918171518181920
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for KZN North

  1. weather stationWind Update Continuing clean conditions at Kosi Bay (light winds from the SW at Mbazwana Airfield 73 km from Kosi Bay). 3.0m 9s swell from the S with a 0.8m 11s groundswell from the E. Swells combining to make to make bigger set waves.

    Kosi Bay
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