Onrus Surf Break

Onrus Surf Forecast and Surf Report

Lat Long: 34.41° S 19.17° E

Issued: 7 pm 06 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, 11PM (local time) - 10ft (3.0m), 13s period, SSW swell with cross-onshore winds.
  • Most powerful swell: Thursday 9 Jul, 5AM (local time) - 8ft (2.5m), 14s period, SW swell with 2,968 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 5AM (local time) - 7ft (2.2m), 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 5AM. The primary swell is predicted to be 2.2m and 12s period with a secondary swell of 0.1m and 11s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Onrus in the next 16 days are 2.5m 14s and forecast to arrive on Thursday (Jul 09) at 5AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 7s period and expected on Sunday (Jul 12) at 8AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Tue 7th Jul)7ft (2.2m) 12s
Best Surf11PM (Thu 9th Jul)10ft (3.0m) 13s
Most Powerful 5AM (Thu 9th Jul)8ft (2.5m) 14s

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


Updates in  hr  min  s Forecast update imminent

Alright, Rusty here. Let’s get into it.

Alright, listen up. We’ve got a classic tale of two weeks ahead here at Onrus. This reef break gets exposed to that SW swell, and it looks like it’s gonna start pumping right out of the gate this Tuesday, July 7th. We’re talking about a solid 7ft SW groundswell with a 12-second period. That’s proper ocean energy (1188), and with glassy, offshore winds from the north in the morning, you’re looking at some absolutely pristine conditions. This is one of the standouts, but it’s no beginner wave. At 7ft, it’s already getting into intermediate territory, and with that long period and exposed reef setup, only experienced surfers are gonna be handling this beast. The water temp anomaly is about average for July, so just your usual winter wetsuit.

That Tuesday afternoon stays clean with a cross-off wind, and that swell sticks around, even picking up a touch on Wednesday morning with a 13-second period and 7ft. The energy jumps up to 2082, which is solid. But that’s where the good times end for a while. From Wednesday afternoon, July 8th, things go south. A strong onshore wind kicks in from the SSE, blowing right into the face of the 7ft swell. Thursday is a complete write-off with 8ft and onshore howling, and Friday through Sunday is all cross-onshore chop with energy winding down. It’s a rough patch, but the consistency of the swell direction means the reef will still be taking the hit.

Then there's a lull. Monday July 13th and Tuesday July 14th offer small waves around 2ft to 3ft. Clean, glassy conditions make it surfable for a mellow session, and the energy is down around 207-299, but nothing to get excited about.

Here’s where it gets interesting again. Look at Saturday July 18th. We get a return of a chunky 8ft SW groundswell, period 12 seconds, and the wind goes glassy again from the NW. The energy is right back up to 1598. This is your other true standout. Same set-up as the start: clean, powerful, and for the experienced crew only. That glassy Saturday is followed by another great Sunday morning, July 19th, with an 8ft SSW swell and light offshore winds, energy at 1680. The session Sunday afternoon drops a bit to 5ft but stays clean. The side-off conditions persist into Monday July 20th with waist-high leftovers, nice and clean.

There’s a bit of a gap through the middle of the second week. The 21st sees some strong wind and messy conditions, but then Wednesday July 22nd throws a curveball. A 7ft swell, but this time from the west, with a short period of just 7 seconds. The energy is still decent (671), and it’s clean with light winds, but that short period makes for a weaker, less powerful wave on the reef. It’s surfable, but not the same quality as the big SW groundswells.

Overall, the best bets are Tuesday July 7th and Saturday July 18th. Both are big, clean, and powerful SW swells with glassy to light offshore winds. If you’re up for the size, those are the days. The rest of the window is either too small, blown out, or just average.

Rusty out.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Tue afternoon, min 12°C on Thu morning). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Sun afternoon, min 11°C on Thu night). Mainly fresh winds.

Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Mon
13
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
4
4
4
4
4
1
2
1
1
!
0
0
0
0
0
0
0
0
1
2
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)
2.1
WSW
12
2.1
SW
12
2.1
SW
13
2.3
SW
13
2.1
SW
12
2.2
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
2.2
SSW
12
1.7
SSW
12
1.6
S
11
1.5
S
11
1.4
S
10
0.8
SSW
10
0.7
SW
10
0.7
SSW
10
Wave Graph
Metric surfscale
Energy kJ
1194
1162
1426
1819
1403
1682
2919
2565
2241
2848
2460
2177
1715
1338
748
640
505
402
125
98
86
Wind (km/h)
10
NW
5
N
10
WSW
5
NNW
10
WNW
20
SSE
15
SSE
15
ESE
20
SE
15
E
20
E
30
ESE
25
E
25
E
25
E
20
E
25
E
25
E
15
ENE
5
NE
5
SW
Wind State
off
glassy
cross-off
off
cross-off
on
on
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
glassy
High Tide
7:50AM1.18m
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
Low Tide
1:48AM0.41m
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
clear
clear
part cloud
clear
clear
part cloud
part cloud
cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
clear
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
7:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:45
5:45
5:46
5:46
5:47
5:47
5:49
5:49
 mm
Temp °C
15
17
18
16
17
17
14
13
14
13
13
15
13
14
15
14
14
17
14
16
18
Feels °C
14
17
17
17
15
15
13
9
10
9
8
9
8
9
10
9
10
12
10
14
17
Swell 1
Height (m)
Direction
Period (s)
2.1
WSW
12
2.1
SW
12
2.1
SW
13
2.3
SW
13
2.1
SW
12
2.2
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
2.2
SSW
12
1.7
SSW
12
1.6
S
11
1.5
S
11
1.4
S
10
0.8
SSW
10
0.7
SW
10
0.7
SSW
10
Energy kJ
1194
1162
1426
1819
1403
1682
2919
2565
2241
2848
2460
2177
1715
1338
748
640
505
402
125
98
86
Swell 2
Height (m)
Direction
Period (s)
0.1
SE
11
0.1
SE
11
0.3
SW
22
0.6
SW
20
1.1
SW
18
1
SW
17
0.1
SE
10
0.2
W
13
0.4
W
12
0.5
W
11
0.4
W
11
0.5
W
12
0.5
W
11
0.5
W
11
0.8
SSE
8
0.7
S
9
0.7
SSE
9
Energy kJ
5
4
73
241
679
536
4
13
44
64
38
69
60
57
77
79
80
Swell 3
Height (m)
Direction
Period (s)
0.4
ESE
11
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
W
13
0.1
SW
17
0.3
SW
16
0.3
SW
15
0.4
W
10
0.4
W
10
0.4
W
9
Energy kJ
45
22
27
20
10
10
1
15
32
12
40
37
32
30
27
Wind waves
Height (m)
Direction
Period (s)
0.4
WNW
3
0.6
W
4
1.4
SE
5
1.6
SE
6
1.3
SE
7
0.7
ESE
4
1.7
SE
7
1.4
SE
7
0.9
ESE
8
Energy kJ
3
9
102
206
164
16
318
217
101
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
2
4
4
3
3
3
3
2
2
1
Distance (km)
0
0
0
0
0
38
23
10
206
10
23
40
23
23
4
23
23
4
4
0
0
Best forecast wave conditions in Overberg
Rating
(10 max)
4
4
4
4
4
4
5
4
4
4
4
4
4
3
3
3
3
2
2
2
Best forecast wave conditions in South Africa
Rating
(10 max)
4
4
4
4
4
4
5
4
4
5
5
5
4
4
4
4
3
3
4
3
3
Header Global
Rating
(10 max)
7
5
5
9
8
9
7
7
6
6
6
5
5
4
5
5
4
9
7
5
7
  • 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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