Extensions 48 hour detailed Surf Forecast

Lat Long: 34.34° S 18.46° E

Issued: 7 am 11 Jul 2026 (local time)

Forecast update in hr min

Today's Extensions sea temperature is

15.5° C

Extensions 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 Extensions today (11 Jul):

Morning surf: Morning surf (11 Jul, local time) - 7ft (2.1m), 12s period with SSW swell.
Afternoon surf: Afternoon surf (11 Jul, local time) - 5.5ft (1.7m), 12s period with SSW swell.
Evening surf: Evening surf (11 Jul, local time) - 5ft (1.6m), 12s period with SSW swell.

The current surf forecast for Extensions at 1PM is: 1.8m 12s primary swell from a South-southwest direction and 1.1m 12s secondary swell from a Southwest direction (forecast issued at 07:00am July 11). An open ocean swell of 1.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (11 Jul)	7ft (2.1m)	12s
Afternoon (11 Jul)	5.5ft (1.7m)	12s
Evening (11 Jul)	5ft (1.6m)	12s

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

	Short Range Forecast Mostly dry. Very mild (max 17°C on Sun afternoon, min 13°C on Sat morning). Winds decreasing (strong winds from the ESE on Sat afternoon, calm by Mon night).
	Saturday 11							Sunday 12								Monday 13								Tue 14
	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	2 AM
Rating (10 max)	1	1	1	1	1	1	1	1	1	2	2	0	0	0	2	2	2	2	1	1	1	1	2	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 12	SSW 12	SSW 12	SSW 12	SSW 12	SSW 12	SSW 12	SSW 11	SSW 11	SSW 11	SSW 11	SSW 11	SSW 11	SSW 10	SSW 10	SSW 10	S 10	SSW 10	SSW 10	SSW 10	SSW 10	W 12	W 12	W 11
Wave Graph
kJ	1354	1281	1240	768	872	683	701	665	504	401	394	334	302	241	232	232	379	157	125	120	103	98	177	198
Wind (km/h)	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	SE	ESE	ESE	SE	N
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	off	off	off	off	off	cross-off	cross-off	cross-off	off	off	off	off	off	cross-off	cross-off	cross-off	cross-off	glassy
High Tide				12:49PM1.24m				1:04AM1.42m				1:48PM1.35m					2:02AM1.49m				2:40PM1.47m
Low Tide		6:34AM0.27m				6:51PM0.37m				7:35AM0.17m				7:54PM0.26m					8:28AM0.09m				8:48PM0.17m


	7:50	—	—	—	—	—	—	—	7:50	—	—	—	—	—	—	—	7:50	—	—	—	—	—	—	7:50
	—	—	—	—	5:51	—	—	—	—	—	—	—	5:52	—	—	—	—	—	—	—	5:52	—	—	5:52
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	13	13	14	16	16	15	14	13	13	13	13	16	17	16	15	14	14	14	14	15	16	16	16	16
Feels °C	6	6	7	9	8	7	7	6	6	7	8	12	12	11	11	11	12	11	12	13	14	14	16	15
Swell 1 Height (m) Direction Period (s)	SSW 12	SSW 12	SSW 12	SSW 12	SSW 12	SSW 12	SSW 12	SSW 11	SSW 11	SSW 11	SSW 11	SSW 11	SSW 11	SSW 10	SSW 10	SE 7	S 10	SSW 10	SSW 10	SSW 10	SSW 10	SSW 9	W 12	W 11
kJ	1354	1281	1240	768	872	683	701	665	504	401	394	334	302	241	232	119	379	157	125	120	103	78	177	198
Swell 2 Height (m) Direction Period (s)	W 12	W 11	W 11	SW 12	W 12	SW 12	W 12	W 11	W 11	W 11	W 11	W 11	W 11	W 10	W 10	SSW 10	W 10	SSE 7	SE 7	SE 7	SSE 9	SSE 9	SSE 9	SSE 8
kJ	132	118	152	324	172	169	175	163	116	114	114	112	81	75	71	232	69	62	46	37	86	65	66	64
Swell 3 Height (m) Direction Period (s)	—	SW 20	S 20	W 11	SW 12	W 12	SSW 18	WSW 17	SW 16	SW 16	SW 16	SW 16	SW 15	SW 15	SW 15	W 10	SW 14	W 10	S 9	S 9	W 9	W 12	SSW 9	SSW 9
kJ	—	15	7	152	72	178	30	29	41	40	40	39	35	34	33	69	33	68	43	59	40	98	78	58
Wind waves Height (m) Direction Period (s)	SE 6	SE 6	SE 6	SE 6	SE 6	SE 6	SE 7	SE 7	SE 7	SE 8	SE 8	SE 8	SE 7	SE 7	SE 7	SE 7	SE 7	SE 7	SE 7	—	—	—	—	—
kJ	205	205	187	172	223	312	362	342	386	382	305	223	217	222	162	218	179	135	121	—	—	—	—	—
Nearest Offshore or Glassy	Kakapo Cape Town	Noordhoek Cape Town	Dunes Cape Town	Kakapo Cape Town	Dunes Cape Town	The Hoek Cape Town	Dunes Cape Town	Boneyards Cape Town	Boneyards Cape Town	Scarborough Point Cape Town	Scarborough Point Cape Town	Olifants Bos Cape Town	Olifants Bos Cape Town	The Boiler Cape Town	Extensions Cape Town	Extensions Cape Town	Extensions Cape Town	Extensions Cape Town	Extensions Cape Town	Extensions Cape Town	Extensions Cape Town	Extensions Cape Town	Extensions Cape Town	Extensions Cape Town
Rating (10 max)	4	4	4	3	4	4	3	3	3	3	3	2	2	2	2	2	2	2	1	1	1	1	2	2
Distance (km)	26	27	27	26	27	30	27	26	26	18	18	12	12	25	0	0	0	0	0	0	0	0	0	0
Best forecast wave conditions in Cape Town	Kreefte Reef	Kreefte Reef	Kreefte Reef	Kreefte Reef	Captains	Kreefte Reef	Van Riebeek	Van Riebeek	The Hoek	Thermopylae	Kreefte Reef	Kreefte Reef	The Hoek	The Hoek	The Hoek	Sunset	Sunset	Kreefte Reef	Kreefte Reef	The Hoek	The Hoek	Kreefte Reef	Kreefte Reef	Kreefte Reef
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3	3	3	2	2	2	2	2	2	2
Best forecast wave conditions in South Africa	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Morgans Bay Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Gerickes Point Garden Route	Gerickes Point Garden Route	Fish Boma Garden Route	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Fish Boma Garden Route	Periwinkles Eastern Cape - Wild Coast	Vleesbaai Overberg	Goukamma River Mouth Garden Route	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3	3	3	4	2	3	4	3	3
Header Global	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Saint Leu Reunion	Bluff Panama	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Injidup Carpark Australia	Cobblestones Australia	Cobblestones Australia	Point Roadnight Australia	Puertecillo Chile
Rating (10 max)	5	5	4	7	6	6	5	5	5	5	5	4	5	5	4	4	4	4	4	5	5	5	9	6

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

Latest Updates

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Extensions 48 hour detailed Surf Forecast

How big are the waves at Extensions today (11 Jul):

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