Onrus Surf Forecast

/ Overberg (23 surf breaks) /

South Africa (276 surf breaks)

Surf Forecasts:

Onrus surfForecast / Overberg / South Africa

12 Day Weather and Surf, issued 7 am Monday 17 Nov 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 17.2° 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 Thursday (Nov 20) at 11PM. The primary swell is predicted to be 3.0m and 15s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Onrus in the next 12 days are 3.0m 15s and forecast to arrive on Thursday (Nov 20) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave Type	Time (SAST) & Date	Wave Height & Period
Next good surf (1 star+)	11PM (Thu 20th Nov)	10ft (3.0m) 15s
Best Surf	11PM (Thu 20th Nov)	10ft (3.0m) 15s
Most Powerful	11PM (Thu 20th Nov)	10ft (3.0m) 15s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Mostly dry. Warm (max 25°C on Mon afternoon, min 15°C on Mon night). Winds decreasing (fresh winds from the SE on Mon afternoon, light winds from the E by Tue night).									Days 3-6 Weather Summary Some drizzle, heaviest during Sat night. Warm (max 24°C on Sat morning, min 15°C on Thu night). Winds increasing (light winds from the E on Thu night, strong winds from the SE by Sat afternoon).
	Monday 17			Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	1	0	0	2	0	0	!	0	0	0	0	0	0	1	1	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	SW	SSW	SSW	SW	SW	SSW	SW	SW	SW	SW	SSW	SW	S	SSW	SSW	SW
Period(s) (?)	11	11	10	16	15	13	13	13	16	16	15	15	14	13	13	12	12	10	11	11	16
Wave Graph (?)
kJ (?)	308	229	123	310	677	503	563	1052	1170	2567	2842	3365	2252	1568	1305	1045	463	499	698	698	1300
Wind (km/h)	ESE	ESE	E	SSE	SSE	E	SE	SE	ESE	SE	SE	E	SE	SE	E	SE	SE	ESE	SE	SSE	E
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	on	cross- on	on	on	cross- on	on	on	cross- on	on	on	cross- on	on	on	cross- on	on	on	cross- on	on	on	cross- on
High Tide / height (m)	1:33PM 1.45		2:02AM 1.36		2:04PM 1.48	2:32AM 1.40		2:35PM 1.49	3:02AM 1.42		3:06PM 1.49	3:32AM 1.42		3:37PM 1.46	4:04AM 1.40		4:08PM 1.42	4:36AM 1.37		4:41PM 1.37
Low Tide / height (m)		7:58PM 0.22		8:02AM 0.33		8:26PM 0.19	8:33AM 0.30		8:55PM 0.17	9:03AM 0.29		9:24PM 0.18	9:33AM 0.30		9:53PM 0.20	10:04AM 0.33		10:24PM 0.24	10:37AM 0.37		10:56PM 0.29

	Monday 17			Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23
Sunrise	5:28	-	-	5:28	-	-	5:28	-	-	5:28	-	-	5:26	-	-	5:26	-	-	5:26	-	-
Sunset	-	7:27	-	-	7:28	-	-	7:29	-	-	7:30	-	-	7:30	-	-	7:30	-	-	7:31	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	1	2	1	-
Temp. °C	23	25	18	21	20	18	21	22	18	22	23	18	23	23	19	24	24	20	19	19	19
Feels °C (?)	18	18	13	16	14	15	16	17	14	17	17	14	18	17	15	19	18	16	19	17	18

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Quick surf report for Onrus:

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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.

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.