Onrus surf break

Onrus surfForecast / Overberg / South Africa

information circle16 Day Weather and Surf, issued 7 pm Saturday 09 May 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Onrus surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Onrus sea temperature is
17.6° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Onrus this week:

The surf forecast for Onrus over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (May 11) at 2AM. The primary swell is predicted to be 3.5m and 13s period with a secondary swell of 3.0m and 12s. Another secondary swell of 0.4m and 11s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Onrus in the next 16 days are 7.0m 13s and forecast to arrive on Monday (May 11) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Saturday (May 09) at 11PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 11th May)11ft (3.5m) 13s
Best Surf 2AM (Mon 11th May)11ft (3.5m) 13s
Most Powerful 2PM (Mon 11th May)23ft (7.0m) 13s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 93mm), heaviest during Mon afternoon. Very mild (max 18°C on Mon afternoon, min 12°C on Sun afternoon). Winds increasing (light winds from the N on Sat night, severe gales from the NW by Mon morning).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Tue night. Very mild (max 19°C on Fri afternoon, min 12°C on Wed night). Winds decreasing (strong winds from the W on Tue night, calm by Thu afternoon).

Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Sat
16
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
2
1
0
!
0
0
!
!
!
!
!
!
!
4
4
4
5
3
2
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
13
2.5
W
8
3.5
WSW
8
3.5
W
13
6.5
W
11
6.5
WSW
13
5
WSW
13
3
SW
13
4
WSW
12
4.5
WSW
12
4
SW
13
4
SW
12
3.5
SW
12
2.4
SSW
11
1.9
SSW
11
2.4
SSW
14
2.5
SSW
14
2.5
SSW
14
2.4
SW
14
2.4
SW
13
2.1
SW
12
Wave Graph
Metric surfscale
Energy kJ
406
947
1790
3511
10847
14025
8082
2851
4651
5060
4498
4599
2910
1382
838
2265
2870
2488
2171
1903
1284
Wind (km/h)
20
NNE
35
WNW
60
W
40
WNW
80
NW
55
WNW
40
W
35
WNW
40
W
40
W
30
W
20
WSW
10
WNW
5
N
5
WNW
5
NNW
5
ESE
15
SE
20
E
25
E
30
ESE
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
off
glassy
on
cross-on
cross-on
cross-on
High Tide
9:08PM1.12m
9:33AM1.04m
10:24PM1.19m
10:55AM1.10m
11:23PM1.30m
11:56AM1.21m
00:12AM1.43m
12:46PM1.32m
00:57AM1.55m
1:32PM1.43m
1:41AM1.65m
2:15PM1.52m
2:25AM1.71m
2:59PM1.57m
Low Tide
3:31AM0.64m
3:45PM0.56m
4:54AM0.55m
4:57PM0.50m
5:52AM0.41m
5:55PM0.41m
6:40AM0.27m
6:44PM0.32m
7:24AM0.13m
7:30PM0.23m
8:06AM0.03m
8:15PM0.16m
8:49AM-0.02m
light rain
rain showers
rain showers
rain showers
heavy rain
heavy rain
heavy rain
light rain
mod rain
rain showers
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
7:26
7:26
7:26
7:28
7:28
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:53
5:52
5:52
5:52
5:51
5:50
5:50
5:49
2
4
12
6
19
17
23
4
6
3
Temp °C
16
15
13
14
16
18
17
17
17
16
15
15
14
14
16
16
18
19
17
18
19
11
7
1
3
2
9
8
12
11
10
8
9
10
12
14
15
18
18
14
13
13
Swell 1
Height (m)
Direction
Period (s)
1.1
SW
13
1.2
SW
13
0.5
SE
11
3
SW
12
0.6
S
9
0.6
SSE
10
3
SW
13
4
SW
13
4
SW
12
3.5
SW
12
2.4
SSW
11
1.9
SSW
11
2.4
SSW
14
2.5
SSW
14
2.5
SSW
14
2.4
SW
14
2.4
SW
13
2.1
SW
12
Energy kJ
406
471
60
2719
60
75
2587
4498
4599
2910
1382
838
2265
2870
2488
2171
1903
1284
Swell 2
Height (m)
Direction
Period (s)
0.9
WNW
6
0.6
SSE
12
0.2
S
15
0.4
SE
11
0.2
ESE
10
0.5
WSW
12
1.4
WSW
11
1.3
WSW
11
1.2
WSW
11
0.9
WSW
15
1.3
WSW
11
2.1
S
14
1.7
S
13
1.6
S
12
Energy kJ
50
90
17
30
10
83
486
408
353
403
359
1781
971
746
Swell 3
Height (m)
Direction
Period (s)
0.8
SSE
12
0.1
SW
22
0.2
WSW
19
1.2
SSW
14
0.7
SW
16
0.7
WSW
12
1.2
WSW
16
Energy kJ
184
18
34
622
271
140
649
Wind waves
Height (m)
Direction
Period (s)
1.4
NW
6
2.5
W
8
3.5
WSW
8
3.5
W
13
6.5
W
11
6.5
WSW
13
5
WSW
13
3
W
12
4
WSW
12
4.5
WSW
12
2
W
12
Energy kJ
144
947
1790
3511
10847
14025
8082
2851
4651
5060
1117
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
4
4
3
5
4
4
4
4
4
5
4
4
4
5
5
5
4
4
Distance (km)
10
778
532
1030
1016
949
274
72
67
220
221
72
17
0
0
0
0
23
23
23
23
Best forecast wave conditions in Overberg
Rating
(10 max)
4
5
4
4
5
5
5
5
4
4
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
3
3
5
3
5
6
8
4
4
5
9
4
4
5
5
5
5
5
5
Header Global
Rating
(10 max)
5
4
9
6
5
5
5
9
9
9
9
8
9
5
5
6
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)
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Information about the Onrus Surf forecast

The above surf forecast table for Onrus provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Onrus can be found by selecting the local surf guide option on the grey menu. Our Onrus 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 (Onrus) 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 Onrus 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.

Onrus is 6 km (4 miles) from Hermanus. If you plan a holiday in Overberg, look for hotels and other accommodation in Hermanus. Hermanus has rooms for a wide range of budgets as well as car hire and transport links.

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