Groenvlei surfForecast / Garden Route / South Africa

information circle16 Day Weather and Surf, issued 1 am Saturday 23 May 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Groenvlei surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Groenvlei sea temperature is
17.9° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Groenvlei this week:

The surf forecast for Groenvlei over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 23) at 5AM. The primary swell is predicted to be 1.1m and 15s period with a secondary swell of 0.9m and 6s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Groenvlei in the next 16 days are 3.0m 18s and forecast to arrive on Wednesday (May 27) at 8PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Tuesday (May 26) at 2PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sat 23rd May)3.5ft (1.1m) 15s
Best Surf 5PM (Mon 25th May)10ft (3.0m) 16s
Most Powerful 8PM (Wed 27th May)10ft (3.0m) 18s

Table - best surf conditions forecast for Groenvlei over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 21°C on Mon morning, min 16°C on Sat morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Tue morning, min 15°C on Tue night). Wind will be generally light.

Saturday
23
Sunday
24
Monday
25
Tuesday
26
Wednesday
27
Thursday
28
Friday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
3
3
2
3
4
!
4
4
4
4
3
!
!
5
4
!
!
!
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
14
1.1
SW
13
0.9
SW
12
1.2
SW
13
1.1
SW
13
1.6
SW
14
2.3
SW
14
3
SW
16
2.2
SW
14
1.8
SW
13
1.8
SW
12
1.9
SW
14
2
SW
13
3
SW
18
3
SW
17
2.5
SW
16
2.5
SW
16
3.5
SW
14
3
SW
14
3
SW
13
2.5
SW
13
Wave Graph
Metric surfscale
Energy kJ
440
418
240
511
444
1092
2061
3736
1719
1037
913
1463
1220
5076
5310
3710
3412
5265
3751
2760
2417
Wind (km/h)
5
SSW
5
SSW
5
NNE
5
SSE
10
ESE
5
NE
0
WNW
0
ESE
10
WNW
10
WSW
10
W
5
NNW
5
SE
10
ESE
10
W
5
W
5
ESE
5
NNW
5
WSW
10
WSW
20
W
glassy
glassy
glassy
glassy
cross-on
cross
glassy
glassy
off
cross-off
cross-off
glassy
on
on
cross-off
glassy
on
glassy
cross-off
cross-off
cross-off
High Tide
9:05AM1.23m
9:59PM1.39m
10:35AM1.19m
11:15PM1.42m
11:51AM1.23m
00:14AM1.47m
12:47PM1.30m
1:01AM1.53m
1:31PM1.38m
1:40AM1.57m
2:09PM1.45m
2:15AM1.61m
2:43PM1.51m
2:49AM1.64m
Low Tide
3:19PM0.55m
4:36AM0.61m
4:39PM0.58m
5:52AM0.55m
5:49PM0.56m
6:48AM0.48m
6:44PM0.52m
7:30AM0.40m
7:28PM0.47m
8:05AM0.34m
8:06PM0.42m
8:37AM0.29m
8:41PM0.38m
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:20
7:20
7:20
7:22
7:22
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
5:29
5:29
5:29
5:28
Temp °C
18
18
16
19
18
17
21
20
19
18
18
16
18
18
17
16
17
16
18
18
17
19
17
16
19
17
17
21
20
19
16
16
15
18
17
18
17
17
17
17
14
14
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
14
1.1
SW
13
0.9
SW
12
1.2
SW
13
1.1
SW
13
1.6
SW
14
2.3
SW
14
3
SW
16
2.2
SW
14
1.8
SW
13
1.8
SW
12
1.9
SW
14
2
SW
13
3
SW
18
3
SW
17
2.5
SW
16
2.5
SW
16
3.5
SW
14
3
SW
14
3
SW
13
2.5
SW
13
Energy kJ
440
418
240
511
444
1092
2061
3736
1719
1037
913
1463
1220
5076
5310
3710
3412
5265
3751
2760
2417
Swell 2
Height (m)
Direction
Period (s)
0.7
SSW
6
0.7
SSW
6
0.8
SW
8
0.4
SSW
18
0.6
SSW
16
0.5
SSE
11
0.5
SSE
10
0.5
SE
10
0.4
SE
10
0.5
E
7
0.4
E
7
0.3
E
9
0.7
SSW
20
0.3
ESE
11
Energy kJ
36
29
93
120
179
66
59
47
24
23
15
13
346
25
Swell 3
Height (m)
Direction
Period (s)
0.4
ESE
12
0.5
E
11
0.7
SW
15
0.4
SSE
12
0.4
SSE
11
0.3
E
10
0.3
E
10
0.3
E
10
0.4
ESE
5
0.3
SE
9
0.3
SE
9
0.3
SE
13
0.2
E
9
0.2
ESE
11
Energy kJ
44
63
220
55
48
18
17
17
9
13
13
25
6
12
Wind waves
Height (m)
Direction
Period (s)
0.5
E
10
0.9
SW
4
1.2
SW
6
Energy kJ
50
28
123
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
3
3
4
4
5
4
4
4
4
4
6
6
5
5
6
5
4
4
Distance (km)
0
0
0
0
2
2
0
2
0
0
0
0
2
2
20
0
2
2
20
20
20
Best forecast wave conditions in Garden Route
Rating
(10 max)
3
3
3
3
3
4
4
5
4
4
4
4
4
6
6
5
5
6
5
4
4
Best forecast wave conditions in South Africa
Rating
(10 max)
3
3
3
3
3
4
4
5
4
4
4
4
4
6
7
5
5
6
5
5
4
Header Global
Rating
(10 max)
8
4
8
5
5
5
5
5
5
4
7
8
6
6
7
5
5
9
9
9
7
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Groenvlei Surf forecast

The above surf forecast table for Groenvlei provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Groenvlei can be found by selecting the local surf guide option on the grey menu. Our Groenvlei surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Groenvlei) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Groenvlei may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Groenvlei is 26 km (16 miles) from the city of Knysna. If you plan a holiday in Garden Route, look for hotels and other accommodation in Knysna. Knysna has rooms for a wide range of budgets as well as car hire and transport links.

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