Onrus Surf Break

Lat Long: 34.41° S 19.17° E

Onrus Surf Forecast and Surf Report

Issued: 1 pm 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onrus sea temperature is
15.1° C
0.6° 

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


Onrus surf forecast from 8 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, 11PM (local time) - 8ft (2.5m), 15s period, SW swell with 3,237 kJ wave energy.
  • Next surfable swell (1★+): Thursday 9 Jul, 5AM (local time) - 10ft (3.0m), 14s 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 Thursday (Jul 09) at 5AM. The primary swell is predicted to be 3.0m and 14s period. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Onrus in the next 16 days are 2.5m 15s and forecast to arrive on Wednesday (Jul 08) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Jul 15) at 2PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Thu 9th Jul)10ft (3.0m) 14s
Best Surf 5AM (Thu 9th Jul)10ft (3.0m) 14s
Most Powerful11PM (Wed 8th Jul)8ft (2.5m) 15s

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


Alright, Rusty here. Let's talk about what we've got cooking at Onrus.

Right off the bat, the next week or so is a bit of a mixed bag. There's plenty of swell energy hitting this exposed reef, but the wind is going to be a pain for most of it. We're looking at a long stretch of lumpy, cross-onshore conditions that will keep things messy. The first real chance for a decent wave doesn't roll in until Monday the 13th, so you're looking at a solid gap of poor conditions before that.

Wednesday July 8th afternoon kicks things off, but it's not one to get excited about. Swell is a solid 7ft from the SW with a 13-second period, carrying a lot of energy (2204), but that SSE wind at 12 mph is blowing cross-on, making for a choppy, marginal session. It's really not worth paddling out.

This theme continues right through to Sunday July 12th. The swell stays up between 7ft and 8ft, with a lot of energy (peaking at 2644 on Thursday morning), but the wind just won't give us a break. It's a constant cross-on from the east or southeast, 12 to 19 mph, keeping everything lumpy and poor. By Sunday afternoon, the swell drops to 5ft, but it's still cross-on and choppy. Not good.

Monday July 13th morning is where things change. The wind goes completely glassy – dead calm, 0 mph from the NNE. The swell drops to a clean 3ft from the south, with a 10-second period. The energy is low (266), but those glassy conditions mean it will be clean and fun for a smaller board. This is the best wave of the first week.

Tuesday July 14th morning is another glassy window, with a tiny 2ft SW swell (279 energy). Great for a longboard, not much push. The afternoon stays clean but the swell is still small at 2ft.

Wednesday July 15th brings a shift. The morning is tiny, but the afternoon sees a fresh 19 mph NW offshore wind and a 5ft W swell building in. Offshore winds at Onrus are a major positive, so this could be clean and workable, but the swell is still building. The energy jumps to 676.

Now, the standout. While there are a few moments, the real highlight is Monday July 21st morning. We get a solid 7ft SSW swell with a long 14-second period, pumping a huge 2214 energy. But the best part is the wind: glassy calm from the NNE. This is an excellent call for experienced surfers, as the size and power will demand some skill. It will be clean, lined-up, and the long period means the waves will have good shape and plenty of punch. Onrus is a reef, so the long-period swell will actually peel nicely here. There might be the occasional crowd, but the quality will be worth it.

Tuesday July 22nd and Wednesday July 23rd are for experts only. The swell is too big for most, hitting 10ft to 12ft with very long periods (15-16 seconds) and massive energy readings (up to 5201). The wind is clean and offshore, but this is serious, heavy ocean. Only the best should consider it.

Thursday July 16th afternoon shows a big 8ft WSW swell with strong energy (3072), but onshore winds ruin it. Sunday July 19th offers a more manageable 6ft WSW swell with cross-off winds, making for good, clean conditions. It's a solid option, but not the standout.

So for this period, your best bet is Monday the 21st for a glassy, solid swell at Onrus. If that's too big, Monday the 13th or Sunday the 19th are your next best windows, just with smaller or less perfect conditions.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Wed afternoon. Very mild (max 16°C on Wed afternoon, min 10°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Sun afternoon, min 12°C on Sat night). Winds decreasing (fresh winds from the E on Sat afternoon, calm by Mon morning).

Wed
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
1
3
1
0
!
1
0
1
0
0
0
0
1
2
2
2
1
2
1
1
1
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)
2.2
SW
13
2.5
SW
15
2.5
SW
14
2.5
SW
13
3
SSW
13
2.5
SSW
13
2.4
SSW
13
2.2
SSW
12
2
SSW
12
2
S
12
1.7
SSW
11
1.5
S
11
1.4
S
10
1.2
S
10
1
S
10
1.6
SE
8
0.7
W
10
0.6
SW
13
0.7
SSE
9
0.5
SW
12
0.5
W
9
Wave Graph
Metric surfscale
Energy kJ
1668
3093
2644
2241
2638
2081
1805
1427
1177
1136
691
524
416
284
186
341
106
106
82
73
42
Wind (km/h)
20
SSE
15
SE
15
ESE
20
SE
15
ENE
20
E
25
E
15
E
25
E
30
E
20
ENE
15
ENE
15
ESE
5
NNW
0
NNE
10
S
5
NE
5
ENE
5
SW
10
NNW
20
NW
Wind State
cross-on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
glassy
cross-on
cross
glassy
glassy
off
off
High Tide
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
3:29PM1.60m
3:44AM1.61m
Low Tide
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
9:17AM0.04m
9:40PM0.12m
10:01AM0.01m
light rain
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
cloud
cloud
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:48
7:48
7:48
7:48
7:48
7:48
7:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:46
5:46
5:47
5:47
5:49
5:49
5:50
5:51
 mm
1
Temp °C
16
14
12
13
12
12
14
12
14
17
13
15
18
16
15
17
14
15
17
14
17
Feels °C
15
12
8
9
8
7
9
7
9
11
9
12
15
14
15
17
14
14
16
14
12
  • 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
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Onrus:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Onrus surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest