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Surf Forecasts:

Onrus surf break

Onrus surfForecast / Overberg / South Africa

information circle16 Day Weather and Surf, issued 1 am Saturday 28 Mar 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Onrus surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Onrus sea temperature is
15.1° C
 (Which is 4.1°C colder than average for this time of year)

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 Saturday (Mar 28) at 11AM. The primary swell is predicted to be 3.0m and 11s period with a secondary swell of 3.0m and 11s. Another secondary swell of 0.6m and 15s is also forecast. 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 11s and forecast to arrive on Saturday (Mar 28) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Apr 03) at 8AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11AM (Sat 28th Mar)10ft (3.0m) 11s
Best Surf11AM (Sat 28th Mar)10ft (3.0m) 11s
Most Powerful11AM (Sat 28th Mar)10ft (3.0m) 11s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 21°C on Sat afternoon, min 16°C on Sun night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Tue afternoon, min 16°C on Tue morning). Wind will be generally light.

Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
!
3
4
3
1
0
1
0
0
0
0
1
0
0
1
3
3
3
1
0
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3
SW
2.5
WSW
2
SW
1.7
SW
1.5
SW
0.9
WSW
0.9
SW
0.9
S
0.9
S
0.9
SW
0.6
SW
1.2
SW
1
SW
1.1
SW
1.3
SW
1.8
SW
2
SW
2
SW
1.6
SW
1.6
SW
1.8
SW
Period(s) (?)11111010101212999159141413121213121211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)25041822865557399247202139132112136246398464545102511501306700736756
Wind
(km/h)
25
W
20
WSW
5
N
0
SE
15
SSW
15
E
10
SSE
20
SSE
15
E
10
SE
20
SSE
10
SE
20
SE
25
SE
15
E
10
S
15
SSW
10
SE
15
SE
15
S
5
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		glasscross-
on		cross-
on		oncross-
on		cross-
on		oncross-
on		onononcross-
on		cross-
on		crossononcross-
on		glass
High Tide
/ height (m)
12:40PM
1.22
1:07AM
1.37
1:28PM
1.33
1:47AM
1.49
2:06PM
1.43
2:20AM
1.59
2:39PM
1.49
2:51AM
1.65
3:10PM
1.53
3:20AM
1.67
3:39PM
1.54
3:48AM
1.65
4:07PM
1.51
4:15AM
1.59
Low Tide
/ height (m)
6:55PM
0.38
7:28AM
0.32
7:37PM
0.27
8:07AM
0.21
8:13PM
0.19
8:40AM
0.12
8:44PM
0.14
9:10AM
0.07
9:13PM
0.12
9:38AM
0.06
9:41PM
0.13
10:04AM
0.08
10:09PM
0.17
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Sunrise6:52--6:52--6:52--6:54--6:54--6:56--6:56--
Sunset-6:44--6:43--6:40--6:39--6:37--6:37--6:36-
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C202118192018202118212419222320232220222319
Feels °C (?)161717191818191916202319212119232323222120
  • 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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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.

View detailed surf forecast for Onrus at:
surf-forecast.com

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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