Onrus Surf Break

Lat Long: 34.41° S 19.17° E

Onrus Surf Forecast and Surf Report

Issued: 1 am 14 Jul 2026 (local time)

Forecast update in  hr  min

Today's Onrus sea temperature is
15.0° 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 14 Jul 2026:

  • Best quality surf: Wednesday 15 Jul, 8PM (local time) - 10ft (3.0m), 14s period, SW swell with glassy winds.
  • Most powerful swell: Wednesday 15 Jul, 11PM (local time) - 10ft (3.0m), 14s period, SW swell with 3,519 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 14 Jul, 11AM (local time) - 2.5ft (0.7m), 11s 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 11AM. The primary swell is predicted to be 0.7m and 11s period with a secondary swell of 0.5m 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 3.0m 14s and forecast to arrive on Wednesday (Jul 15) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Tuesday (Jul 14) at 2PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Tue 14th Jul)2.5ft (0.7m) 11s
Best Surf 8PM (Wed 15th Jul)10ft (3.0m) 14s
Most Powerful11PM (Wed 15th Jul)10ft (3.0m) 14s

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


The Lowdown

Right, let’s have a look at what’s on the cards for Onrus over the next couple of weeks. Onrus is a reef break that’s rated for intermediate surfers, and it’s inconsistent, so it needs a bit of a lucky swell to line up. The water temp is sitting at 59°, which is about 1° cooler than usual for this time of year – basically average, nothing to write home about.

First real swing of the bat comes on Wednesday, 15 July. The morning swell is already looking promising: 4 ft from the SW with a long 17-second period. That’s a proper groundswell, full of energy, and combined energy is a strong 1088. And the wind is offshore light – WNW at 6 mph. Glorious, clean conditions for experienced surfers. The afternoon pushes the swell up to 7 ft, still from the SW, period 16 seconds, and the energy jumps to 2514. Winds stay light and cross-off, so the shape should hold well. This is the standout window of the entire forecast.

Thursday, 16 July, keeps the run going. Morning glassy conditions with glass NW wind and 8 ft SW swell at 13 seconds. Energy is 2002, and it’s glassy – that’s a dream for a reef break. The reef will really focus that long-period energy. Afternoon is still clean with 7 ft SW swell. This is right up there with Wednesday as the best on offer.

Now, Friday, 17 July, the wind swings cross-on from the east, and the swell drops a touch. Conditions take a real hit – it’s a write-off for the good stuff.

Saturday, 18 July, bounces back nicely. Morning offshore wind, WNW at 6 mph, with 4 ft S swell at 11 seconds. Energy is moderate (618). Afternoon is clean cross-off. Nice, but not a standout.

Sunday, 19 July, morning is a beauty – glassy calm, 6 ft WSW swell at 12 seconds, energy 1065. That’s excellent for experienced surfers again. The afternoon though gets a bit messy with cross-shore wind and bigger, lumpy 8 ft swell.

Monday, 20 July, is onshore and choppy. Not worth it.

Then Tuesday, 21 July, morning glass again with a solid 8 ft SSW swell at 14 seconds and energy 2232. This is a real quality window – clean, glassy, and the swell is lined up. The afternoon is clean cross-off with 8 ft SW swell and 2684 energy. Excellent.

Now, from Wednesday, 22 July, things get too big. 12 ft SW swell with offshore wind, but it’s too much for this break – only for experts, and even then, it’s pushing the limits. Energy is massive at 5122. The next few days are all like that – swell over 10 ft, with some days hitting 16 ft. The break can’t handle it. That’s a gap of no good surf from the 22nd through to the 27th.

Eventually, on Monday, 27 July, the swell drops back to 6 ft from the WSW, with offshore wind at 6 mph and energy 1082. That’s back to excellent for experienced surfers again. The afternoon sees stronger wind but still clean cross-off.

After that, another big pulse hits on the 28th and 29th – 10-13 ft glassy conditions, but again too big for Onrus.

So, the absolute best of the lot – the standouts – are Wednesday 15 July through Thursday 16 July, and Tuesday 21 July. Clean, near-perfect conditions for a reef break. The rest of the window is either blown out, too small, or way too big. Still, for a spot that’s normally inconsistent, this is a solid run.

Rusty

Short Range Forecast

Mostly dry. Very mild (max 17°C on Wed afternoon, min 13°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Fri afternoon, min 13°C on Sun night). Wind will be generally light.

Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
2
4
4
!
4
4
4
1
1
2
3
3
4
4
3
2
3
3
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
W
11
0.7
W
10
0.4
SW
18
1.1
SW
17
2.1
SW
16
3
SW
14
2.4
SW
13
2.1
SW
13
2
SW
12
2.1
SW
11
1.8
SW
10
1.1
S
12
1.3
S
11
1.3
S
11
1.6
WSW
13
1.9
WSW
12
2.3
WSW
11
1.8
SW
11
2.2
SW
11
2.2
SSW
11
2
SSW
10
Wave Graph
Metric surfscale
Energy kJ
112
96
108
745
2028
3341
2002
1365
1088
963
651
330
411
410
888
959
1291
756
1170
1082
825
Wind (km/h)
15
WNW
15
W
15
NW
5
NW
10
WSW
10
NNE
5
NNW
5
W
5
N
10
E
15
ESE
15
NE
10
NW
10
WSW
5
N
0
SW
10
SSW
10
ESE
10
ESE
10
SSE
10
WSW
Wind State
cross-off
cross-off
off
off
cross-off
cross-off
glassy
cross-off
glassy
cross-on
cross-on
cross
off
cross-off
glassy
glassy
cross
cross-on
on
cross-on
cross-off
High Tide
3:29PM1.60m
3:44AM1.61m
4:14PM1.66m
4:29AM1.59m
4:57PM1.67m
5:12AM1.52m
5:38PM1.64m
5:54AM1.43m
6:19PM1.56m
6:36AM1.32m
7:00PM1.46m
7:20AM1.21m
7:44PM1.34m
Low Tide
9:17AM0.04m
9:40PM0.12m
10:01AM0.01m
10:27PM0.10m
10:42AM0.02m
11:12PM0.12m
11:22AM0.08m
11:56PM0.18m
12:01PM0.17m
00:40AM0.26m
12:39PM0.28m
1:24AM0.36m
1:19PM0.41m
2:12AM0.46m
clear
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:48
7:47
7:47
7:46
7:46
7:45
7:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:50
5:51
5:51
5:52
5:52
5:52
5:53
 mm
Temp °C
15
16
15
16
17
15
16
17
15
16
19
17
18
18
15
16
17
14
14
15
14
Feels °C
12
12
12
14
16
15
16
16
15
14
17
14
15
15
15
17
17
13
13
13
13
  • 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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