Extensions 48 hour detailed Surf Forecast

Lat Long: 34.34° S 18.46° E

Issued: 1 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 9AM is: 2.1m 12s primary swell from a South-southwest direction and 0.7m 11s secondary swell from a West direction (forecast issued at 01:00am July 11). An open ocean swell of 1.8m 6s is not directed at the surf break. The wind direction is predicted to be 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 18°C on Sun afternoon, min 13°C on Sat night). Winds decreasing (strong winds from the ESE on Sat afternoon, calm by Mon night).
	Saturday 11								Sunday 12								Monday 13
	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	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM
Rating (10 max)	1	1	2	1	1	0	1	1	1	1	2	2	1	0	0	2	2	2	2	1	1	1	1	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 12	SSW 11	SSW 11	SSW 11	SSW 11	SSW 11	SSW 11	SSW 10	SSW 10	SSW 10	SSW 10	SSW 10	SSW 10	SSW 10	SSW 10	W 11	W 12
Wave Graph
kJ	1507	1354	1281	1240	768	872	683	701	591	560	460	394	328	302	241	274	218	209	157	125	107	103	94	177
Wind (km/h)	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	E	ESE	E	SE	SE	ESE	NNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	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	glassy	glassy
High Tide	11:57PM1.34m				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	—	—	—	—	—	—
	—	—	—	—	—	5:51	—	—	—	—	—	—	—	5:52	—	—	—	—	—	—	—	5:52	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	14	14	14	14	16	16	15	14	13	13	13	13	16	18	17	16	14	14	14	14	15	16	16	16
Feels °C	6	6	6	6	8	7	7	7	6	6	7	8	12	13	12	12	11	12	12	12	13	14	15	16
Swell 1 Height (m) Direction Period (s)	SSW 12	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	SSW 10	SSW 10	SSW 10	SSW 10	SSW 10	SSE 9	W 12
kJ	1507	1354	1281	1240	768	872	683	701	591	560	460	394	328	302	241	274	218	209	157	125	107	103	88	177
Swell 2 Height (m) Direction Period (s)	W 12	W 12	W 11	W 11	SW 12	W 12	SW 12	S 8	W 11	W 11	W 11	W 11	W 11	W 11	W 10	W 10	W 10	SE 7	SSE 7	SSE 9	S 9	SSE 9	SSW 9	SSE 9
kJ	136	132	118	116	287	172	169	119	163	116	114	114	112	81	75	71	69	65	59	88	60	86	78	84
Swell 3 Height (m) Direction Period (s)	—	—	SW 20	S 20	W 11	SW 12	W 12	W 12	WSW 17	SW 16	SW 16	SW 16	SW 16	SW 15	SW 15	SW 15	SW 15	W 10	W 10	W 10	SE 7	W 9	W 11	SSW 9
kJ	—	—	15	7	152	72	178	175	28	41	40	40	39	35	34	33	33	69	68	46	30	40	94	78
Wind waves Height (m) Direction Period (s)	SE 6	SE 6	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	—	—	—	—
kJ	240	248	256	236	212	239	296	219	323	313	295	335	248	204	248	153	109	149	139	109	—	—	—	—
Nearest Offshore or Glassy	Koeel Bay Overberg	The Hoek Cape Town	The Hoek Cape Town	The Hoek Cape Town	Kakapo Cape Town	The Hoek Cape Town	The Hoek Cape Town	Kakapo Cape Town	Boneyards Cape Town	The Boiler Cape Town	The Boiler 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
Rating (10 max)	3	4	4	4	4	4	4	3	3	3	3	3	2	2	2	2	2	2	2	1	1	1	1	2
Distance (km)	37	30	30	30	26	30	30	26	26	25	25	18	12	12	25	0	0	0	0	0	0	0	0	0
Best forecast wave conditions in Cape Town	Kreefte Reef	Kreefte Reef	Kreefte Reef	Kreefte Reef	Kreefte Reef	Captains	Kreefte Reef	Van Riebeek	Van Riebeek	The Hoek	Thermopylae	The Hoek	Kreefte Reef	Beach Road	The Hoek	The Hoek	The Hoek	Kreefte Reef	Kreefte Reef	Kreefte Reef	The Hoek	The Hoek	Van Riebeek	Kreefte Reef
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	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	Whispering Waves Eastern Cape - Wild Coast	Morgans Bay Eastern Cape - Wild Coast	Yellow sands Point Eastern Cape - Wild Coast	Cintsa West Eastern Cape - Wild Coast	Haga-Haga 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	Van Stadens Mouth Eastern Cape (S)	Gerickes Point Garden Route	Gerickes Point Garden Route	Fish Boma Garden Route	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Fish Boma Garden Route	Igoda Eastern Cape - Wild Coast	Fish Boma Garden Route	Haga-Haga Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3	3	4	3	4	2	4	3
Header Global	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Albatross South Africa	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Etang-Sale Reunion	Etang-Sale Reunion	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Black Rocks Mauritius	Benkunqut Indonesia	Black Rocks Mauritius	Gas Bay Australia	Cobblestones Australia	Cobblestones Australia	Bancoora Australia
Rating (10 max)	5	5	5	4	7	6	6	5	5	5	5	5	5	5	5	4	4	4	4	4	6	5	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)

Latest Updates

Ben Mondy

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Extensions 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.

Extensions 48 hour detailed Surf Forecast

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

Short Range Forecast

Latest Updates

How Our WaveFinder Tool Makes Forecasting Easier Than Ever Before

The Five Best Forecasts For International Surfing Day 2026

Best Surf Travel Deals & Discounts For 2026 To Help Make Surf Travel Cheaper

Let Our Surf Alerts Do All Your Forecast Heavy Lifting

Talking To Maddie Meddings on New Film Undercurrents. (And Then Watch It!)

FREE! Surf-Forecast.com widget for your website