Onrus Surf Break

Lat Long: 34.41° S 19.17° E

Onrus Surf Forecast and Surf Report

Issued: 7 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: Thursday 9 Jul, 5AM (local time) - 10ft (3.0m), 14s period, SW swell with 3,143 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 3.0m 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 0.8m 7s period and expected on Tuesday (Jul 14) at 5PM.

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 Powerful 5AM (Thu 9th Jul)10ft (3.0m) 14s

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


G’day, Rusty here. It’s a tough few weeks ahead for Onrus (South Africa), no doubt about it. The reef set-up is exposed to the SW, but the winds are just not playing ball for most of this forecast. We’ve got a proper big-swell window coming in the second week, but that’s only for the experts, if anyone’s mad enough to paddle out.

First up, Thursday the 9th and Friday the 10th, we’ve got a solid 8.2 ft SW and SSW swell rolling in, with combined energy readings around 2600 (2644) and 2164 – that’s strong, powerful stuff. But the problem is the wind: a steady 9–12 mph cross-on from the east and southeast, so it’s choppy, messy, and the tide isn’t playing nice. The water temp is about normal for the time of year, so don’t expect any surprises there. Not worth the drive.

Saturday the 11th brings the same cross-on easterly, now up to 16–19 mph, with a 6.6 ft SSW swell (period 12 seconds, so still good groundswell shape, but the wind is just destroying it). Combined energy drops to around 1200, which is moderate, but the onshore wind creates lumpy, poor conditions. Sunday the 12th, the swell drops to 4.9 ft, winds still cross-on, and we’re into the 600s combined energy – weak, messy, forget it.

Monday the 13th, the swell collapses to 2.6 ft, combined energy just 224 – tiny, weak, and cross-on. Tuesday the 14th, it’s even worse: 1.6 ft and 2.0 ft, with a light cross wind but barely any push. A real flat spell.

Now, here’s a glimmer: Wednesday the 15th morning. The wind swings offshore from the WNW at 12 mph, and we get a 2.0 ft SW swell with a period of 16 seconds – that’s very long period groundswell. Combined energy is still low at 268, but those offshore winds will make it glassy. The swell is small, so only the inside banks might offer a clean little wave for a log or a mid-length. Wednesday afternoon has a side-offshore, but the rain moves in and the energy is still only 403.

Thursday the 16th, the swell jumps back up to 8.2 ft (combined energy 2405), but onshore southerly winds at 16–22 mph ruin it. Messy, blown-out. Friday the 17th, it’s a strong 25 mph cross-on from the east with 7.5 ft SSW swell – that’s strong wind and strong wave energy (1499), but it’s a washing machine. For kite surfers, this setup looks far more interesting than for paddle surfing. Saturday the 18th, winds ease to cross-shore, but swell is only 3.9 ft and weak (388 combined energy). Still poor.

Sunday the 19th brings a clean side-offshore from the W/NW at 12 mph, with a 3.0–3.9 ft WSW swell (period 12–13 seconds). Combined energy is 536–666 – weak to moderate. Clean, but small. Worth a look if you’re desperate, but don’t expect barrels.

Now, Monday the 20th morning is the first proper standout. We’ve got a clean offshore from the NNW at 12 mph, with a 5.2 ft WSW swell, period 11 seconds, and combined energy of 660 (moderate). The offshore wind will hold it open, the swell direction matches the optimum (SW-ish), and it’s a morning window. This is the best of the first two weeks. Crowds at Onrus are sometimes an issue, and with a good clean day like this, expect a few out. But it’s the one to aim for. Monday afternoon the wind cranks up to 25 mph offshore – too strong, impossible to paddle into.

Tuesday the 21st – here comes the big stuff. The morning shows a 11.5 ft SW swell, period 13 seconds, combined energy a massive 3457, and cross-offshore winds. The guidance says the tide and wind are favourable, but the swell is predicted to be too big for this break. Over 8.2 ft is expert-only, and 11.5 ft on a reef? That’s serious. Only the most experienced should even look at it. Wednesday the 22nd, same story: 9.8 ft SW swell, even longer period (15 seconds), combined energy up to 4717, but cross-on wind from the SSW. Still too big and now choppy.

Thursday the 23rd and Friday the 24th

Short Range Forecast

Mostly dry. Very mild (max 17°C on Sat afternoon, min 10°C on Fri night). Mainly fresh winds.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Mon afternoon, min 12°C on Sat night). Wind will be generally light.

Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wed
15
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
3
2
1
!
1
0
1
0
0
0
0
0
1
0
0
0
1
0
1
2
0
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)
2.5
SW
15
2.5
SW
14
2.5
SW
13
3
SSW
13
2.5
SSW
13
2.5
SSW
13
2.2
SSW
12
2
SSW
12
2
SSW
12
1.7
SSW
11
1.5
S
11
1.4
S
10
1.2
S
10
0.8
SSW
10
1.2
SE
9
0.6
W
10
0.5
SW
13
0.6
W
9
0.5
SW
12
0.6
SW
16
0.9
SW
15
Wave Graph
Metric surfscale
Energy kJ
3093
2644
2386
2638
2164
1913
1404
1177
1054
691
524
426
282
111
215
75
80
60
73
203
326
Wind (km/h)
15
SE
15
E
20
SE
15
ENE
15
E
25
ESE
20
ENE
25
E
30
ESE
20
E
20
E
20
E
15
ENE
15
E
25
SE
15
ENE
10
ENE
5
SE
10
NW
20
WNW
25
W
Wind State
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross
on
off
off
cross-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
4:14PM1.66m
Low Tide
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
part cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
light rain
<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
14
12
14
12
13
15
13
14
17
13
14
17
14
15
18
15
16
18
16
16
18
Feels °C
12
8
10
8
9
10
8
9
11
8
10
13
11
13
16
13
15
18
17
11
12
  • 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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