Extensions Surf Forecast

/ Cape Town (70 surf breaks) /

South Africa (276 surf breaks) / Lat Long: (34.34° S 18.46° E)

Surf Forecasts:

Extensions surfForecast / Cape Town / South Africa

48hr Weather and Surf, issued 7 pm Sunday 16 Nov 2025 SAST

Forecast update in hr min s Forecast update imminent

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

Today's Extensions sea temperature is 17.4° C
(Which is normal for this time of year)

How big are the waves at Extensions today?

The current surf forecast for Extensions at 12AM is: 1.6m 12s primary swell from a Southwest direction and 0.3m 15s secondary swell from a Northwest direction (forecast issued at 07:00pm November 16). An open ocean swell of 2.5m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (17 Nov)	-	-
Afternoon (17 Nov)	7ft (2.1m)	13s
Evening (17 Nov)	5.5ft (1.7m)	12s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Sunday 16			Monday 17								Tuesday 18								Wednesday 19
	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	5 AM	8 AM	11 AM	2 PM
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Period(s) (?)	13	12	12	12	12	11	11	11	11	11	10	10	18	16	16	15	15	14	14	13	13	13	13	13
Wave Graph (?)
kJ (?)	1092	960	805	666	497	360	303	263	229	191	151	155	246	314	643	788	757	736	518	495	488	480	480	653
Wind (km/h)	SE	SE	ESE	ESE	ESE	ESE	SE	SE	SE	SE	SE	SE	SE	SE	SSE	SSE	SSE	SE	SE	SE	SE	SE	SE	SSE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	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- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)				1:30AM 1.27				1:32PM 1.41					2:01AM 1.32				2:03PM 1.43				2:31AM 1.36
Low Tide / height (m)		7:26PM 0.25				7:28AM 0.35				7:56PM 0.20					8:01AM 0.31				8:25PM 0.17				8:32AM 0.28

	Sunday 16			Monday 17								Tuesday 18								Wednesday 19
Sunrise	-	-	-	-	-	5:31	-	-	-	-	-	-	-	5:31	-	-	-	-	-	-	-	5:31	-	-
Sunset	7:28	-	-	-	-	-	-	-	7:29	-	-	-	-	-	-	-	7:30	-	-	-	-	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	17	17	16	15	15	15	19	18	18	18	17	17	16	17	17	18	18	18	17	17	16	16	17	18
Feels °C (?)	6	6	5	5	6	7	12	9	8	9	9	9	9	11	10	11	11	12	10	10	9	9	10	11

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

FREE! Surf-Forecast.com widget for your website

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