Onrus Surf Break

Lat Long: 34.41° S 19.17° E

Onrus Surf Forecast and Surf Report

Issued: 7 am 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onrus sea temperature is
15.3° C
0.4° 

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


Onrus surf forecast from 11 Jul 2026:

  • Best quality surf: Wednesday 15 Jul, 5PM (local time) - 10ft (3.0m), 15s period, SW swell with glassy winds.
  • Most powerful swell: Wednesday 15 Jul, 11PM (local time) - 11ft (3.5m), 14s period, SW swell with 4,385 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 14 Jul, 2AM (local time) - 2.5ft (0.7m), 12s period with W 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 14) at 2AM. The primary swell is predicted to be 0.7m and 12s period with a secondary swell of 0.6m and 9s. 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 3.5m 14s and forecast to arrive on Wednesday (Jul 15) at 11PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Saturday (Jul 18) at 11AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Tue 14th Jul)2.5ft (0.7m) 12s
Best Surf 5PM (Wed 15th Jul)10ft (3.0m) 15s
Most Powerful11PM (Wed 15th Jul)11ft (3.5m) 14s

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


Alright, Rusty here. Let’s talk about Onrus for the next couple of weeks.

This spot is an exposed reef, and it’s inconsistent – it doesn’t just fire all the time, it takes the right combo. Right now, we’ve got a bit of a wait on our hands. The first several days are pretty much a write-off thanks to strong cross-onshore winds and poor surf conditions, so don’t bother paddling out until at least the middle of next week.

The first real glimmer comes on Tuesday, July 14th morning. A clean little 2ft swell from the west with light cross-offshore wind. It’s not big, but the wave energy is weak (207), so it’s more of a longboard grovel. The afternoon picks up a touch to 4ft, still clean, but marginal.

Now, keep your eyes on Wednesday, July 15th afternoon. This is where it gets interesting. The wind goes glassy, dead calm, and a serious 10ft SSW groundswell rolls in with a long 15-second period. The energy is huge (3511). The problem? That’s too much for Onrus – it’s strictly for experts only, and even then, it might be closing out or just too heavy. The morning will be cleaner for the brave, with 5ft and light cross-off wind.

Thursday, July 16th is your standout for the week. Morning and afternoon both deliver a solid 8ft SSW swell (13-14 second period) with clean offshore winds from the northwest. This is excellent, powerful surf for experienced surfers. The energy is strong (2644 in the morning), and the winds will make it glassy. Crowds? Onrus can get them *sometimes*, so don’t be surprised if there are a few others out.

We then hit another rough patch from Friday, July 17th through Saturday, July 18th – strong onshore winds and lumpy, big swell. Not worth it.

Things settle again on Sunday, July 19th morning. A smaller 3ft south swell with light offshore wind. Clean and fun, mellow energy (560). Good for a recovery session.

The following week looks promising but less certain. Wednesday, July 22nd morning stands out: glassy conditions, 6ft SSW groundswell with a 14-second period, and strong energy (1388). This is one for experienced surfers again, but it’ll be clean. Thursday, July 23rd afternoon also looks fun with 5ft SW swell and clean cross-off wind.

Further out, the last weekend (July 25-26) sees a massive jump in size – 10ft to 13ft SW swells with very long periods. The wave energy readings are extreme (up to 8529), but the wind is onshore. This will be a washing machine, and likely too big for this break to offer quality. Let’s just say the setup looks more interesting for kite surfing than paddle surfing.

Water temperature is 60°F, which is about normal for this time of year, so no surprises there.

To sum it up: Thursday July 16th is the best bet in the first week – expert level, clean, powerful. If you’re after something smaller and cleaner, aim for Sunday July 19th morning. The second week’s standout is Wednesday July 22nd morning, but it’s far out so keep an eye on it.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Sat afternoon, min 11°C on Sat morning). Winds decreasing (fresh winds from the ESE on Sat afternoon, light winds from the N by Mon night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Wed morning. Very mild (max 17°C on Tue afternoon, min 12°C on Wed night). Wind will be generally light.

Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
1
1
0
2
2
1
2
3
!
!
4
4
0
0
0
0
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
SSW
12
2.1
SSW
12
1.8
SSW
11
1.5
S
11
1.5
S
11
1.2
S
10
0.9
SSW
10
1
S
10
0.7
W
12
0.7
W
11
1.1
W
10
0.4
SW
18
1.6
SW
10
3
SW
15
3
SW
14
2.5
SW
14
2.5
SW
13
3.5
SW
12
3.5
SSW
13
3
SSW
13
2.5
SSW
14
Wave Graph
Metric surfscale
Energy kJ
1240
1180
866
533
498
290
154
184
137
112
233
108
560
3511
4021
2644
2310
2993
3393
3041
2948
Wind (km/h)
25
E
30
ESE
20
E
20
E
20
ESE
15
ENE
10
E
15
SE
10
NNE
10
W
20
W
15
NW
10
W
5
SE
5
WNW
15
NW
20
WNW
20
SSE
30
E
35
E
35
E
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
on
cross-off
cross-off
cross-off
off
cross-off
glassy
cross-off
off
off
cross-on
cross-on
cross-on
cross-on
High Tide
12:51PM1.28m
1:06AM1.46m
1:50PM1.39m
2:04AM1.54m
2:42PM1.51m
2:56AM1.59m
3:29PM1.60m
3:44AM1.61m
4:14PM1.66m
4:29AM1.59m
4:57PM1.67m
5:12AM1.52m
5:38PM1.64m
Low Tide
6:52PM0.39m
7:37AM0.19m
7:55PM0.28m
8:30AM0.10m
8:50PM0.19m
9:17AM0.04m
9:40PM0.12m
10:01AM0.01m
10:27PM0.10m
10:42AM0.02m
11:12PM0.12m
11:22AM0.08m
11:56PM0.18m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
light rain
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:48
7:48
7:48
7:48
7:47
7:47
7:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:47
5:49
5:49
5:50
5:51
5:51
5:52
 mm
1
1
Temp °C
14
18
14
14
18
14
15
18
16
15
17
15
14
15
13
15
17
14
12
13
11
Feels °C
9
12
10
10
14
11
13
16
14
12
13
12
11
15
13
11
12
9
5
5
3
  • Map Icons:
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  • 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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