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 am Sunday 09 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 17.0° C
(Which is normal for this time of year)

How big are the waves at Extensions today?

The current surf forecast for Extensions at 2PM is: 1.3m 13s primary swell from a Southwest direction (forecast issued at 07:00am November 09). An open ocean swell of 0.9m 6s is not directed at the surf break, a second open ocean swell of 1.5m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (SAST) & Date	Wave Height	Wave Period
Morning (09 Nov)	5ft (1.5m)	13s
Afternoon (09 Nov)	4.5ft (1.3m)	13s
Evening (09 Nov)	4.5ft (1.3m)	13s

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 09							Monday 10								Tuesday 11								Wed 12
	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)	2	3	3	3	2	2	3	4	3	1	1	0	0	2	3	4	4	3	2	2	2	2	2	3
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	SW	SSW	SW	SW	SW	SW	SW	SW	SW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW
Period(s) (?)	14	13	13	13	13	13	15	14	13	13	13	12	12	12	18	18	17	16	16	15	15	15	14	14
Wave Graph (?)
kJ (?)	769	778	755	600	591	535	461	915	933	814	643	593	511	492	817	983	1351	2372	1762	2396	2427	2881	2408	2169
Wind (km/h)	ESE	E	SE	SSE	SSE	SE	E	NNE	NNE	NW	WNW	W	WSW	SW	S	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SSE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	off	off	cross- off	cross- off	cross- off	cross- off	off	glass	glass	cross- on	cross- on	on	on	cross- on	cross	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)						5:52PM 1.35				6:30AM 1.29				6:52PM 1.19				7:40AM 1.20					8:13PM 1.07
Low Tide / height (m)				11:43AM 0.28				12:10AM 0.27				12:45PM 0.41				1:12AM 0.40					2:08PM 0.51

	Sunday 09							Monday 10								Tuesday 11								Wed 12
Sunrise	-	5:37	-	-	-	-	-	-	-	5:37	-	-	-	-	-	-	-	5:35	-	-	-	-	-	-
Sunset	-	-	-	-	7:22	-	-	-	-	-	-	-	7:22	-	-	-	-	-	-	-	7:22	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	20	21	22	23	20	23	22	21	19	19	21	21	19	19	19	19	20	18	18	18	18	17	17	17
Feels °C (?)	17	19	21	23	18	20	21	22	20	18	19	18	17	19	21	19	19	16	15	14	15	13	13	14

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

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.