Onrus Surf Break

Onrus Surf Forecast and Surf Report

Lat Long: 34.41° S 19.17° E

Issued: 1 am 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onrus sea temperature is
15.2° C

Slightly cooler than normal

Onrus surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Onrus surf forecast from 7 Jul 2026:

  • Best quality surf: Thursday 9 Jul, 5AM (local time) - 10ft (3.0m), 14s period, SW swell with onshore winds.
  • Most powerful swell: Wednesday 8 Jul, 8PM (local time) - 8ft (2.5m), 16s period, SW swell with 3,311 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 11AM (local time) - 7ft (2.1m), 12s period with SW swell.

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 Tuesday (Jul 07) at 11AM. The primary swell is predicted to be 2.1m and 12s period with a secondary swell of 0.1m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Onrus in the next 16 days are 2.5m 16s and forecast to arrive on Wednesday (Jul 08) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 7s period and expected on Sunday (Jul 12) at 11PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Tue 7th Jul)7ft (2.1m) 12s
Best Surf 5AM (Thu 9th Jul)10ft (3.0m) 14s
Most Powerful 8PM (Wed 8th Jul)8ft (2.5m) 16s

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


Updates in  hr  min  s Forecast update imminent

Alright folks, Rusty here with the lowdown on Onrus for the next couple of weeks.

We’ve got a bit of a mixed bag coming. The water’s at 59°, which is about normal for this time of year. Tuesday morning is where we start, and it’s looking like a ripper. A clean 7ft SW groundswell is rolling in with a 12-second period, and the wind is glassy out of the NNW. The combined energy is strong at 1188. This is excellent, punchy stuff, but at 7ft, it’s really only for the experienced crew. Onrus is an inconsistent reef break, so when it’s on, you get after it. Crowds can show up here sometimes, but early in the week might keep it mellow. This is the peak of the run.

Tuesday afternoon stays good, with the swell holding at 7ft from the SW, period bumping to 13 seconds, and clean cross-off winds. Energy is up to 1499. Excellent conditions for those who can handle it.

Wednesday morning keeps the quality high – 7ft SW, 12-second period, clean cross-off winds, and the energy is pumping at 2082. Still feeling it.

Now, things turn nasty from Wednesday afternoon. The wind swings onshore and strengthens, rain moves in, and while the swell hangs around 8ft to 8ft from the SW and SSW, the quality falls right off. Expect poor, choppy conditions through Thursday, Friday, and Saturday. It’s gonna be a messy stretch of onshore slop. Sunday and Monday see the swell drop to 3ft to 5ft, but it’s still messy with cross-onshore winds.

We get a little break Monday afternoon – a clean 3ft S swell with a 9-second period and light cross-off winds. Wave energy is weak at 235. It’s surfable, but nothing to write home about. Tuesday of the second week is even smaller, with a tiny 2ft W swell, though it’s clean with offshore winds.

The real standout, and the one that’s got me amped for the future, is the second half of that second week. We get a huge pulse of SW groundswell arriving on Thursday the 16th. Thursday morning brings 8ft at 12 seconds with clean cross-off winds and strong energy at 1626 – excellent for experts. But Thursday afternoon is looking like a beast – 10ft SW, 14-second period, light winds, and a thumping energy of 3341. This is way too big for most; this is expert-only, big-wave territory. Friday the 17th is even bigger, holding 10ft to 10ft SW with 13-second periods and glassy conditions. The energy spikes to a massive 4263 on Friday afternoon. This is a proper groundswell with a very long period, so it’s going to be powerful and lined up. A reef like Onrus should handle it beautifully, but you better know what you’re doing.

After that, it backs off a little. Saturday the 18th is still big at 8ft SSW with offshore winds in the morning, and Sunday the 19th is a similar size but with a shorter period and cross-shore winds, so the quality drops. By Monday the 20th, we’re back to smaller, cleaner 3ft waves.

So, in a nutshell: the best guaranteed surf on offer is this Tuesday and Wednesday morning – clean, solid, and powerful. The truly massive swell on July 16th and 17th is the big one to watch, but it’s a long-range call, so keep an eye on it.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Wed afternoon. Very mild (max 18°C on Tue afternoon, min 11°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 7mm), mostly falling on Fri night. Very mild (max 17°C on Sun afternoon, min 11°C on Fri morning). Wind will be generally light.

Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
4
4
0
2
1
0
!
2
0
0
0
0
0
0
0
1
1
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
SW
12
2.1
SW
13
2.3
SW
13
2.1
SW
12
2.3
SW
13
2.5
SW
15
2.5
SW
14
2.5
SW
13
3
SSW
13
2.5
SSW
13
2.5
SSW
13
2.4
SSW
12
2.1
SSW
12
2
SSW
12
1.7
SSW
11
1.4
SSW
11
1.4
S
10
0.9
SSW
10
0.8
SSW
10
1
S
9
0.8
S
9
Wave Graph
Metric surfscale
Energy kJ
1162
1426
1819
1403
1783
3051
2644
2241
2678
2584
2440
1817
1252
1072
679
460
402
160
125
175
110
Wind (km/h)
5
N
5
WSW
5
NW
10
WNW
20
SSE
15
SSE
15
ESE
25
SE
15
E
20
E
25
ESE
20
ESE
20
ESE
20
E
20
E
20
E
20
E
15
ENE
5
NE
5
WSW
5
N
Wind State
glassy
cross-off
off
cross-off
on
on
cross-on
on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-off
cross-off
High Tide
8:20PM1.36m
8:57AM1.14m
9:26PM1.33m
10:19AM1.13m
10:43PM1.33m
11:41AM1.18m
11:59PM1.38m
12:51PM1.28m
1:06AM1.46m
1:50PM1.39m
2:04AM1.54m
2:42PM1.51m
2:56AM1.59m
Low Tide
1:48PM0.42m
2:49AM0.42m
2:51PM0.48m
4:04AM0.42m
4:11PM0.51m
5:24AM0.37m
5:37PM0.48m
6:36AM0.29m
6:52PM0.39m
7:37AM0.19m
7:55PM0.28m
8:30AM0.10m
8:50PM0.19m
clear
part cloud
clear
part cloud
light rain
part cloud
part cloud
clear
part cloud
cloud
cloud
rain showers
light rain
light rain
part cloud
clear
part cloud
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:48
7:48
7:48
7:48
7:48
7:48
7:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:46
5:46
5:47
5:47
5:49
5:49
 mm
1
3
2
2
Temp °C
17
18
15
17
17
14
12
14
12
13
15
13
13
14
14
15
17
14
16
17
15
Feels °C
17
17
15
15
16
12
8
10
8
9
10
8
9
10
10
12
14
11
14
16
14
Swell 1
Height (m)
Direction
Period (s)
2.1
SW
12
2.1
SW
13
2.3
SW
13
2.1
SW
12
2.3
SW
13
2.5
SW
15
2.5
SW
14
2.5
SW
13
3
SSW
13
2.5
SSW
13
2.5
SSW
13
2.4
SSW
12
2.1
SSW
12
2
SSW
12
1.7
SSW
11
1.4
SSW
11
1.4
S
10
0.9
SSW
10
0.8
SSW
10
1
S
9
0.8
S
9
Energy kJ
1162
1426
1819
1403
1783
3051
2644
2241
2678
2584
2440
1817
1252
1072
679
460
402
160
125
175
110
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
11
0.3
SW
22
0.6
SW
20
1.1
SW
18
1
SW
17
0.9
SW
13
1
S
16
0.2
W
13
0.4
W
12
0.5
W
11
0.5
W
11
0.6
W
12
0.5
W
11
0.5
W
11
0.8
SSE
9
0.6
S
9
0.4
W
10
0.3
W
9
Energy kJ
4
73
241
679
536
290
516
13
46
61
59
100
60
58
96
57
29
14
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
24
0.4
SE
10
0.3
ESE
10
0.2
ESE
10
0.2
ESE
10
0.1
W
8
0.1
SW
20
0.3
WSW
13
0.1
SW
17
0.3
SW
16
0.3
SW
15
0.4
W
10
0.4
W
10
0.3
SW
14
0.3
SW
13
Energy kJ
22
27
20
10
10
1
15
35
12
41
37
33
31
31
27
Wind waves
Height (m)
Direction
Period (s)
0.5
WNW
3
0.5
ESE
3
0.6
E
3
0.6
E
4
1.4
SE
7
0.3
ENE
3
0.2
ENE
2
1.1
SE
7
0.3
ENE
3
Energy kJ
7
6
7
10
163
1
1
122
1
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
5
4
4
4
5
3
3
4
4
3
3
3
2
1
2
1
Distance (km)
0
0
0
0
83
23
10
250
10
23
40
38
23
4
10
4
4
4
4
0
0
Best forecast wave conditions in Overberg
Rating
(10 max)
4
4
4
4
5
4
4
4
5
3
4
4
3
3
3
2
2
2
1
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
4
4
4
5
5
4
5
6
5
4
4
4
4
4
3
3
3
3
4
Header Global
Rating
(10 max)
7
5
7
9
8
9
7
7
6
7
5
5
5
5
5
5
9
9
7
5
6
  • 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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