Derde Steen 48 hour detailed Surf Forecast

Lat Long: 33.76° S 18.44° E

Issued: 7 am 17 Sep 2026 (local time)

Forecast update in hr min

Today's Derde Steen sea temperature is

10.8°C

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

Surf Forecasts:

How big are the waves at Derde Steen today (17 Sep):

Morning surf: Morning surf (17 Sep, local time) - 6.5ft (2.0m), 12s period with SW swell.
Afternoon surf: Afternoon surf (17 Sep, local time) - 6ft (1.9m), 12s period with SW swell.
Evening surf: Evening surf (17 Sep, local time) - 5.5ft (1.7m), 12s period with SW swell.

The current surf forecast for Derde Steen at 12PM is: 2.0m 12s primary swell from a Southwest direction and 0.7m 12s secondary swell from a West direction, 1.9m 7s secondary swell from a South-southeast direction (forecast issued at 07:00am September 17). The wind direction is predicted to be cross-offshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (17 Sep)	6.5ft (2.0m)	12s
Afternoon (17 Sep)	6ft (1.9m)	12s
Evening (17 Sep)	5.5ft (1.7m)	12s

Table - waves today at Derde Steen. (Swell directed towards the surf break)

	Short Range Forecast Mostly dry. Warm (max 22°C on Sat afternoon, min 11°C on Thu night). Mainly strong winds.
	Thursday 17							Friday 18								Saturday 19
	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM
Rating (10 max)	2	2	1	1	0	1	2	3	3	3	2	2	2	2	2	3	3	3	2	2	2	3	4
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 12	SW 11	SW 11	SW 11	SW 11	SW 11	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 14	SW 14	SW 14
Wave Graph
kJ	1429	1209	1031	1111	887	794	710	685	652	640	640	600	796	796	784	748	657	646	522	355	902	1033	1324
Wind (km/h)	SE	SE	SE	SE	SSE	SE	SE	ESE	ESE	ESE	SE	SE	SE	SE	SE	ESE	ESE	ESE	SSE	SSE	SSE	SSE	ESE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross-off	cross	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross	cross	cross	cross-off	cross-off
High Tide						6:36PM1.13m				7:10AM1.01m				7:30PM1.00m					8:48AM0.92m				9:37PM0.93m
Low Tide				12:20PM0.51m				00:53AM0.53m				1:03PM0.63m					2:02AM0.64m				2:56PM0.73m


	6:43	—	—	—	—	—	—	—	6:41	—	—	—	—	—	—	—	6:39	—	—	—	—	—	—
	—	—	—	—	6:37	—	—	—	—	—	—	—	6:38	—	—	—	—	—	—	—	6:39	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	13	13	16	18	17	14	13	12	11	11	15	20	21	17	15	13	13	14	19	22	22	21	19
Feels °C	7	5	7	9	8	7	8	8	8	8	11	14	16	13	12	10	11	11	16	19	20	19	17
Swell 1 Height (m) Direction Period (s)	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 12	SW 11	SW 11	SW 11	SW 11	SW 11	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 14	SW 14	SW 14
kJ	1429	1209	1031	1111	887	794	710	685	652	640	640	600	796	796	784	748	657	646	522	355	902	1033	1324
Swell 2 Height (m) Direction Period (s)	W 12	W 12	W 12	—	—	—	—	—	—	—	W 20	W 20	SW 18	SW 18	SSE 8	SSE 8	SSE 8	SSE 8	SSE 6	SW 14	—	—	—
kJ	144	144	139	—	—	—	—	—	—	—	7	7	12	49	147	83	83	81	55	305	—	—	—
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	WSW 18	SW 16	SW 16	—	SW 15	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	31	41	127	—	174	—	—	—	—
Wind waves Height (m) Direction Period (s)	SSE 8	SSE 7	SSE 7	S 7	S 7	SSE 7	SSE 7	SSE 7	SSE 7	SSE 7	SSE 7	SSE 6	SSE 7	SSE 7	SSE 7	SSE 7	SSE 7	SSE 7	SSE 7	SSE 6	SSE 6	SSE 6	SSE 6
kJ	336	293	308	377	453	397	276	206	132	128	149	177	220	198	224	154	154	123	138	53	98	123	82
Nearest Offshore or Glassy	Bikini Beach (Gordon's Bay) Cape Town	The Point (Elands Bay) West Coast	The Point (Elands Bay) West Coast	Donkin Bay West Coast	Blythedale KZN North	De Kelders Overberg	Beach Road Cape Town	Derde Steen Cape Town	Derde Steen Cape Town	Derde Steen Cape Town	Beach Road Cape Town	Beach Road Cape Town	Beach Road Cape Town	Beach Road Cape Town	Beach Road Cape Town	Derde Steen Cape Town	Derde Steen Cape Town	Derde Steen Cape Town	Haakgat Cape Town	Haakgat Cape Town	Haakgat Cape Town	Derde Steen Cape Town	Derde Steen Cape Town
Rating (10 max)	2	3	3	4	2	3	3	3	3	3	3	3	4	4	4	3	3	3	3	3	4	3	4
Distance (km)	59	162	162	217	1314	122	3	0	0	0	3	3	3	3	3	0	0	0	1	1	1	0	0
Best forecast wave conditions in Cape Town	Bikini Beach (Gordon's Bay)						Kamer Van	Kreefte Reef	Kreefte Reef	Kreefte Reef	Kamer Van	Kamer Van	Beach Road	Beach Road	Beach Road	Van Riebeek	Van Riebeek	The Hoek	The Hoek	Captains	Captains	Captains	Kreefte Reef
Rating (10 max)	2						3	3	3	3	3	3	4	4	4	4	4	3	3	3	4	4	4
Best forecast wave conditions in South Africa	Fish Boma Garden Route	Gerickes Point Garden Route	Wedge Durban/KZN South	Doring Bay West Coast	Zinkwazi KZN North	Gerickes Point Garden Route	Fish Boma Garden Route	Fish Boma Garden Route	Fish Boma Garden Route	Gerickes Point Garden Route	Pastures West Coast	Kamer Van Cape Town	Gerickes Point Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Captains Cape Town	Van Stadens Mouth Eastern Cape (S)	Goukamma River Mouth Garden Route
Rating (10 max)	4	4	3	4	3	4	4	4	4	4	3	3	4	4	4	4	4	4	4	3	4	4	4
Header Global	Grindavik Antenas Iceland	Haapiti French Polynesia	Haapiti French Polynesia	Haapiti French Polynesia	Stent Road New Zealand	Charleston New Zealand	Charleston New Zealand	Asu Indonesia	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Brims Ness United Kingdom	El Huerto Spain	Cathedral Rock Australia	Figueira da Foz - Buarcos Portugal	Fox River New Zealand	May's Point Australia	Quarantine Australia	Trial Harbour Australia	Trial Harbour Australia	Bali Village Indonesia	Easter Reef Australia
Rating (10 max)	6	5	5	5	6	5	5	4	9	9	8	7	5	5	6	5	5	5	5	9	9	5	5

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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Derde Steen 48 hour detailed Surf Forecast

How big are the waves at Derde Steen today (17 Sep):

Short Range Forecast

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