Groenvlei Surf Forecast

/ Garden Route (22 surf breaks) /

South Africa (273 surf breaks) / Lat Long: (34.03° S 22.77° E)

Surf Forecasts

Groenvlei surfForecast / Garden Route / South Africa

12 Day Weather and Surf, issued 1 pm Saturday 16 Aug 2025 SAST

Forecast update in hr min s Forecast update imminent

Groenvlei surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Groenvlei sea temperature is 16.9° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Groenvlei this week:

The surf forecast for Groenvlei over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 16) at 11PM. The primary swell is predicted to be 1.8m and 10s period with a secondary swell of 0.8m and 12s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Groenvlei in the next 12 days are 5.5m 14s and forecast to arrive on Saturday (Aug 23) at 8PM. 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 Tuesday (Aug 19) at 2AM.

Wave Type	Time (SAST) & Date	Wave Height & Period
Next good surf (1 star+)	11PM (Sat 16th Aug)	6ft (1.8m) 10s
Best Surf	8PM (Wed 20th Aug)	10ft (3.0m) 8s
Most Powerful	8PM (Sat 23rd Aug)	18ft (5.5m) 14s

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

Hourly 12 Days

Garden Route Surf

Print Surf Table

Updates in hr min s Forecast update imminent

	Short Range Forecast Mostly dry. Warm (max 20°C on Mon morning, min 13°C on Sat night). Wind will be generally light.											Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Tue afternoon, min 13°C on Tue night). Wind will be generally light.
	Sat 16		Sunday 17			Monday 18			Tuesday 19			Wednesday 20			Thursday 21			Friday 22
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
Rating (10 max)	2	3	2	1	3	2	3	3	4	3	3	2	3	!	!	3	4	!	!	!	!
Swell Height Map See all maps
Wave Height (m) & direction (?)	ESE	ESE	ESE	ESE	ESE	ESE	SSW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Period(s) (?)	10	10	11	10	10	9	17	19	16	14	13	13	12	12	11	11	11	10	10	11	12
Wave Graph (?)
Energy (?)	936	901	787	664	573	527	705	905	2663	1537	940	858	1546	5000	2152	1781	1110	2628	2008	4010	5795
Wind (km/h)	ESE	NNE	SE	ESE	NNW	SW	WSW	N	WSW	S	NNE	SW	SW	W	SSW	S	NNE	SW	WSW	W	WNW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	on	cross- off	on	on	cross- off	cross	glass	cross- off	cross- off	cross- on	cross- off	cross	cross	cross- off	cross	cross- on	glass	cross	cross- off	cross- off	cross- off
High Tide / height (m)		8:51PM 1.37	9:48AM 1.14		10:46PM 1.27	12:05PM 1.18		12:38AM 1.33	1:26PM 1.34		1:44AM 1.46		2:16PM 1.51	2:29AM 1.59		2:55PM 1.66	3:06AM 1.68		3:29PM 1.78	3:39AM 1.74
Low Tide / height (m)	2:13PM 0.55	3:30AM 0.62		3:54PM 0.69		5:41AM 0.64	6:16PM 0.66		7:15AM 0.52	7:38PM 0.52		8:08AM 0.37		8:28PM 0.37	8:47AM 0.23		9:07PM 0.25	9:20AM 0.13		9:40PM 0.16	9:49AM 0.07

	Sat 16		Sunday 17			Monday 18			Tuesday 19			Wednesday 20			Thursday 21			Friday 22
Sunrise	-	-	7:05	-	-	7:05	-	-	7:03	-	-	7:03	-	-	7:01	-	-	7:00	-	-	6:58
Sunset	5:59	-	-	6:00	-	-	6:00	-	-	6:00	-	-	6:01	-	-	6:01	-	-	6:02	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	16	15	18	19	16	20	19	15	18	18	15	18	18	16	16	16	14	17	17	14	17
Feels °C (?)	14	14	16	17	14	17	16	13	17	15	15	16	15	15	14	14	13	13	13	9	9

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

Recent Eyeball Surf Reports for Garden Route

Wind Update The wind is still cross-on at Groenvlei (moderate winds from the E at George Airport 35 km from Groenvlei). 1.8m 10s swell from the ESE with a 0.9m 12s groundswell from the SSW and a 0.7m 5s windswell from the SW. 3 swells combining so expect closeout sets.
1 hour 13 minutes ago Groenvlei

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35 km away, 1 h 13 min ago

20 km/h

0.0

16.9

Air / Water (°C)

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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 Groenvlei 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 Groenvlei Surf forecast

The above surf forecast table for Groenvlei provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Groenvlei can be found by selecting the local surf guide option on the grey menu. Our Groenvlei 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 (Groenvlei) 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 Groenvlei 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.

Groenvlei is 26 km (16 miles) from the city of Knysna. If you plan a holiday in Garden Route, look for hotels and other accommodation in Knysna. Knysna has rooms for a wide range of budgets as well as car hire and transport links.