Onrus surf break

Onrus surfForecast / Overberg / South Africa

information circle12 Day Weather and Surf, issued 1 pm Wednesday 31 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
15.9° C
(Which is 3.8°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 Thursday (Jan 01) at 11PM. The primary swell is predicted to be 1.2m and 12s period with a secondary swell of 0.1m and 22s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Onrus in the next 12 days are 3.0m 12s and forecast to arrive on Wednesday (Jan 07) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 9s period and expected on Thursday (Jan 01) at 2PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 1st Jan)4ft (1.2m) 12s
Best Surf11AM (Wed 7th Jan)10ft (3.0m) 12s
Most Powerful 2PM (Wed 7th Jan)10ft (3.0m) 12s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 25°C on Wed afternoon, min 19°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Mon morning, min 17°C on Sun night). Winds decreasing (strong winds from the SE on Sun afternoon, calm by Mon night).

Wed
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
2
1
1
1
0
0
0
0
0
0
1
1
3
1
2
3
!
Swell
Height Map
Wave Height (m) & direction (?)
1
SW
0.9
SW
0.8
SW
1.3
SW
1.1
SW
1
SW
0.8
SW
1.2
SW
1.7
WSW
1.5
WSW
1.3
WSW
1.1
SW
0.9
WSW
1.1
SW
1.2
SW
1.2
WSW
1.4
SW
1.4
SW
1.1
SSW
2.4
SW
3
SW
Period(s) (?)111013131212181615141312121212111210151412
Wave
Graph
(?)Metric surfscale
Energy kJ (?)224173242519367273383757115892157234724732539334749734852721032310
Wind
(km/h)
20
SSE
10
ESE
15
SSE
15
S
0
WSW
10
SSW
15
SSW
15
SE
25
SSE
35
SSE
25
ESE
30
ESE
40
SE
25
E
10
SE
15
S
5
ESE
10
S
15
SW
20
WNW
15
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
oncross-
on
cross-
on
glasscrosscross-
on
onononcross-
on
cross-
on
oncross-
on
oncross-
on
glasscross-
on
crosscross-
off
cross-
off
High Tide
/ height (m)
1:25AM
1.35
1:38PM
1.53
2:18AM
1.46
2:31PM
1.58
3:06AM
1.55
3:19PM
1.61
3:51AM
1.60
4:04PM
1.60
4:34AM
1.63
4:47PM
1.54
5:16AM
1.61
5:28PM
1.46
5:56AM
1.56
Low Tide
/ height (m)
7:13PM
0.21
7:28AM
0.32
8:07PM
0.12
8:24AM
0.23
8:55PM
0.06
9:14AM
0.16
9:39PM
0.02
10:01AM
0.13
10:21PM
0.03
10:47AM
0.14
11:01PM
0.07
11:30AM
0.19
11:39PM
0.14
12:13PM
0.26
Wed
31
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Sunrise--5:33--5:33--5:35--5:35--5:37--5:37--5:37
Sunset7:58--7:58--7:59--7:59--7:59--7:59--7:59--
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
part cloud
cloud
Rain (mm)
---------------------
Temp. °C252224232122232122222123252126242023232121
Feels °C (?)242323222222232219191819191624212223232220
  • 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 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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