Extensions 48 hour detailed Surf Forecast

Lat Long: 34.34° S 18.46° E

Issued: 7 am 10 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 (10 Jul):

Morning surf: Morning surf (10 Jul, local time) - 8ft (2.5m), 13s period with SSW swell.
Afternoon surf: Afternoon surf (10 Jul, local time) - 8ft (2.5m), 13s period with SSW swell.
Evening surf: Evening surf (10 Jul, local time) - 7.5ft (2.3m), 12s period with SSW swell.

The current surf forecast for Extensions at 12PM is: 2.5m 13s primary swell from a South-southwest direction and 0.3m 14s secondary swell from a West direction (forecast issued at 07:00am July 10). An open ocean swell of 1.7m 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 (10 Jul)	8ft (2.5m)	13s
Afternoon (10 Jul)	8ft (2.5m)	13s
Evening (10 Jul)	7.5ft (2.3m)	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 Fri morning). Winds decreasing (strong winds from the SE on Fri night, light winds from the ESE by Sun night).
	Friday 10							Saturday 11								Sunday 12								Mon 13
	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	0	1	1	1	2	2	1	1	1	1	2	2	2	2	2	0	0	2	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	SSW 12	SSW 12	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
Wave Graph
kJ	2713	2349	2230	2081	1805	1722	1507	1507	1354	1281	1240	768	784	683	784	744	534	460	394	379	302	285	218	214
Wind (km/h)	SE	SE	SE	SE	SE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE
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	cross-off	cross-off	cross-off	off	off	cross-off	cross-off	cross-off	off	off	off	off	off	cross-off	cross-off	cross-off	off	off
High Tide				11:40AM1.15m				11:57PM1.34m				12:49PM1.24m				1:04AM1.42m				1:48PM1.35m
Low Tide		5:23AM0.35m				5:36PM0.45m				6:34AM0.27m				6:51PM0.37m				7:35AM0.17m				7:54PM0.26m


	7:50	—	—	—	—	—	—	—	7:50	—	—	—	—	—	—	—	7:50	—	—	—	—	—	—	7:50
	—	—	—	—	5:51	—	—	—	—	—	—	—	5:51	—	—	—	—	—	—	—	5:52	—	—	5:52
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	13	13	13	13	14	14	14	14	13	14	14	16	17	15	14	14	13	13	14	16	18	17	16	15
Feels °C	5	5	5	5	5	5	5	6	5	7	6	9	9	7	7	8	7	7	9	12	13	12	12	12
Swell 1 Height (m) Direction Period (s)	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	SSW 12	SSW 12	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
kJ	2713	2349	2230	2081	1805	1722	1507	1507	1354	1281	1240	768	784	683	784	744	534	460	394	379	302	285	218	214
Swell 2 Height (m) Direction Period (s)	SE 15	W 15	W 14	W 14	W 13	W 12	W 12	W 12	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	W 10
kJ	9	17	37	34	82	110	141	136	132	118	116	324	172	169	175	160	116	114	114	112	108	73	71	69
Swell 3 Height (m) Direction Period (s)	—	SE 15	—	—	—	W 8	W 8	—	—	SW 20	S 20	W 11	SW 12	W 12	SW 18	WSW 17	SW 16	SW 16	SW 16	SW 16	SW 15	SW 15	SW 15	SW 15
kJ	—	9	—	—	—	1	1	—	—	15	7	152	72	178	12	28	41	40	40	39	35	34	33	34
Wind waves Height (m) Direction Period (s)	SE 5	SSE 5	SSE 6	SE 6	SE 6	SE 6	SE 6	SE 6	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 7	SE 7	SE 7
kJ	77	133	170	189	207	236	269	269	248	287	244	236	261	306	259	194	228	228	235	248	204	162	131	91
Nearest Offshore or Glassy	Koeel Bay Overberg	Koeel Bay Overberg	Koeel Bay Overberg	Koeel Bay Overberg	Koeel Bay Overberg	Sandy Bay Cape Town	Koeel Bay Overberg	Koeel Bay Overberg	The Hoek Cape Town	The Hoek Cape Town	The Hoek Cape Town	Kakapo Cape Town	Kakapo Cape Town	The Hoek Cape Town	Boneyards Cape Town	The Boiler Cape Town	Scarborough Point 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
Rating (10 max)	4	4	4	4	4	4	3	3	4	4	4	4	3	4	3	3	3	3	3	3	2	2	2	2
Distance (km)	37	37	37	37	37	37	37	37	30	30	30	26	26	30	26	25	18	18	18	12	12	25	0	0
Best forecast wave conditions in Cape Town	Sollys	Kreefte Reef	Haakgat	Haakgat	Haakgat	Kreefte Reef	Kreefte Reef	Kreefte Reef	Kreefte Reef	Kreefte Reef	Kreefte Reef	Captains	Beach Road	Kreefte Reef	Van Riebeek	The Hoek	The Hoek	The Hoek	Kreefte Reef	Kreefte Reef	Beach Road	The Hoek	The Hoek	Kreefte Reef
Rating (10 max)	5	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3	2
Best forecast wave conditions in South Africa	Whispering Waves Eastern Cape - Wild Coast	Double Mouth Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Fish Boma Garden Route	Mtati Eastern Cape (S)	Gerickes Point Garden Route	Fish Boma Garden Route	Fish Boma Garden Route	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Gerickes Point Garden Route	Fish Boma Garden Route	Fish Boma Garden Route	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast
Rating (10 max)	5	5	5	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3
Header Global	Barbel Point South Africa	Boneyards South Africa	Papatowai New Zealand	Bruces Beauties South Africa	Bruces Beauties South Africa	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Supertubes Australia	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Kaifu Rivermouth Japan	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Ilot Sancho Mauritius	Black Rocks Mauritius	Black Rocks Mauritius
Rating (10 max)	5	5	6	5	5	7	7	5	5	5	4	5	7	6	6	5	5	5	5	5	5	5	4	4

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 (10 Jul):

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