Onrus surf break

Onrus surfForecast / Overberg / South Africa

information circle12 Day Weather and Surf, issued 1 am Friday 20 Jun 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
15.4° C
(Which is slightly cooler than normal)


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 Friday (Jun 20) at 5AM. The primary swell is predicted to be 3.5m and 12s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Onrus in the next 12 days are 5.0m 13s and forecast to arrive on Friday (Jun 20) at 5PM. 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 5s period and expected on Friday (Jun 20) at 5AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 20th Jun)11ft (3.5m) 12s
Best Surf 5AM (Fri 20th Jun)11ft (3.5m) 12s
Most Powerful 5PM (Fri 20th Jun)16ft (5.0m) 13s

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

Updates in  hr  min  s Forecast update imminent
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
01
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
Swell
Height Map
Wave Height (m) & direction (?)
4
SW
5
SW
4.5
SW
3
SW
2.5
SW
2.2
WSW
2.4
SW
4
SW
3.5
SW
4.5
SW
4.5
SW
4
SW
3.5
SW
3.5
SW
4
WSW
4.5
SW
4.5
SW
4.5
SW
4
SW
2.5
SSW
1.9
SSW
2.5
SW
3.5
WSW
3
WSW
5.5
SW
6
SW
5.5
SW
5
SW
4.5
SW
3.5
SW
3
SW
3
SW
2.5
SW
2.4
SW
2.3
SW
2.3
SW
Period(s) (?)121315141413121414141515141313141313121211111211141516161616151414131313
Wave
Graph
(?)Metric surfscale
Energy (?)5113164648992448130151988172694055001736285257836449942325133812071911005856604526180420153293269911890156431627412973109436129369528982648188618341723
Wind
(km/h)
40
WNW
30
W
10
NW
10
NW
20
WNW
15
NNW
20
WSW
20
W
25
WNW
20
NW
20
WNW
15
NNW
25
NW
35
NW
35
NNW
20
WSW
30
WSW
35
WSW
20
SW
25
WNW
40
NW
45
NW
35
NW
40
NW
35
W
20
SW
5
SE
15
E
20
ESE
10
NE
5
SE
10
SE
15
E
25
E
25
E
15
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
offoffcross-
off
offcross-
off
cross-
off
offoffcross-
off
offoffoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffcross-
off
cross-
off
oncross-
on
oncrossglassoncross-
on
cross-
on
cross-
on
cross-
off
High Tide
/ height (m)
10:39AM
1.18
11:00PM
1.41
11:50AM
1.24
12:05AM
1.46
12:52PM
1.32
1:04AM
1.51
1:47PM
1.40
1:59AM
1.55
2:37PM
1.47
2:50AM
1.57
3:25PM
1.52
3:38AM
1.56
4:10PM
1.54
4:23AM
1.52
4:54PM
1.53
5:07AM
1.45
5:37PM
1.50
5:49AM
1.36
6:20PM
1.45
6:32AM
1.27
7:03PM
1.39
7:17AM
1.17
7:48PM
1.31
Low Tide
/ height (m)
4:34PM
0.45
5:38AM
0.30
5:46PM
0.41
6:40AM
0.23
6:52PM
0.35
7:36AM
0.16
7:50PM
0.28
8:27AM
0.11
8:44PM
0.22
9:14AM
0.08
9:33PM
0.19
9:58AM
0.08
10:21PM
0.20
10:41AM
0.11
11:07PM
0.23
11:21AM
0.17
11:52PM
0.29
12:01PM
0.24
12:38AM
0.36
12:40PM
0.33
1:24AM
0.43
1:20PM
0.42
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
01
Sunrise7:48--7:48--7:48--7:48--7:50--7:50--7:50--7:50--7:50--7:50--7:50--7:50--
Sunset-5:39--5:39--5:39--5:40--5:40--5:40--5:40--5:42--5:42--5:42--5:43--5:43-
part cloudrain showersrain showersclearclearpart cloudlight rainlight raincloudcloudclearclearpart cloudpart cloudrain showersheavy rainmod rainmod rainrain showerslight raincloudlight rainrain showersclearrain showerscloudpart cloudclearclearclearclearclearclearclearclearclear
Rain (mm)
-11---31------93010931-21-1-----------
Temp. °C161715161815151514151614141614121111101211111214151514121413151713131721
Feels °C (?)9101114151212101010111199876346424799109111013151181217

Short Range Forecast: Light rain (total 6mm), mostly falling on Sun morning. Very mild (max 18°C on Sat afternoon, min 14°C on Fri night). Winds decreasing (strong winds from the WNW on Fri morning, light winds from the NW by Fri night).

Days 3-6 Weather Summary Heavy rain (total 58mm), heaviest during Wed morning. Very mild (max 16°C on Mon afternoon, min 9°C on Wed night). Winds increasing (light winds from the NW on Mon night, fresh winds from the NW by Tue afternoon).

Days 6-9 Weather Summary Light rain (total 8mm), mostly falling on Thu morning. Very mild (max 15°C on Sat morning, min 9°C on Thu morning). Winds decreasing (strong winds from the NW on Fri morning, light winds from the SE by Sat night).

Long Range Forecast: Mostly dry. Warm (max 21°C on Tue night, min 10°C on Sun morning). Wind will be generally light.

  • 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 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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