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Surf Forecasts:

Onrus surf break

Onrus surfForecast / Overberg / South Africa

information circle12 Day Weather and Surf, issued 7 am Thursday 04 Dec 2025 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
16.5° C
 (Which is 2.2°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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Dec 09) at 8AM. The primary swell is predicted to be 1.8m and 11s period with a secondary swell of 0.3m and 16s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Onrus in the next 12 days are 2.1m 12s and forecast to arrive on Sunday (Dec 07) at 11AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.1m 6s period and expected on Saturday (Dec 06) at 8AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 9th Dec)6ft (1.8m) 11s
Best Surf 8AM (Tue 9th Dec)6ft (1.8m) 11s
Most Powerful11AM (Sun 7th Dec)7ft (2.1m) 12s

Table - best surf conditions forecast for Onrus over the next 12 days.

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

Short Range Forecast Mostly dry. Warm (max 27°C on Thu morning, min 15°C on Sat night). Winds increasing (light winds from the ESE on Fri morning, fresh winds from the SSE by Sat afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 24°C on Sun morning, min 16°C on Sun night). Winds decreasing (fresh winds from the SSE on Sun afternoon, calm by Tue morning).

Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
0
1
0
1
2
2
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
WSW
0.8
WSW
1
S
0.8
S
1.2
S
1.5
SSW
1.1
SW
0.8
SW
1.7
SW
2.1
SW
1.8
SW
1.8
SW
1.6
SW
1.8
SW
1.9
SW
1.8
SW
1.8
SW
2.1
SSW
1.6
SSW
1.5
SW
1.6
SW
Period(s) (?)11119109881313121212121212111110101010
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1831431551182303091762129251240970869736865946743745890562469500
Wind
(km/h)
15
SSE
20
SSE
15
ESE
20
SSE
25
SSE
20
ESE
25
SE
30
SSE
25
E
20
SE
25
SSE
15
ESE
20
S
15
S
5
E
10
SSW
25
SSE
25
ESE
35
ESE
45
ESE
30
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		oncross-
on		cross-
on		onononcross-
on		oncross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscross-
on		cross-
on		cross-
on		oncross-
on
High Tide
/ height (m)
2:34PM
1.69
3:09AM
1.58
3:22PM
1.68
3:55AM
1.59
4:09PM
1.62
4:41AM
1.56
4:56PM
1.53
5:29AM
1.51
5:44PM
1.40
6:20AM
1.44
6:36PM
1.27
7:14AM
1.36
7:34PM
1.15
Low Tide
/ height (m)
8:25AM
0.15
8:58PM
-0.02
9:14AM
0.12
9:43PM
-0.01
10:02AM
0.13
10:28PM
0.04
10:51AM
0.18
11:14PM
0.12
11:43AM
0.26
12:00AM
0.22
12:37PM
0.36
12:49AM
0.33
1:39PM
0.45
1:43AM
0.44
Thursday
04
Friday
05
Saturday
06
Sunday
07
Monday
08
Tuesday
09
Wednesday
10
Sunrise5:22--5:22--5:22--5:22--5:22--5:22--5:24--
Sunset-7:43--7:43--7:44--7:45--7:45--7:46--7:46-
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
Rain (mm)
---------------------
Temp. °C272419212119212119242319232219222219232519
Feels °C (?)242218191816161615211816202019222016161813
  • 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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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.

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 12 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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