Nine Mile Reef 48 hour detailed Surf Forecast

Surf Forecasts:

Nine Mile Reef surfForecast / Cape Town / South Africa

48hr Weather and Surf, issued 7 am Thursday 18 Dec 2025 SAST

Forecast update in hr min s Forecast update imminent

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

Today's Nine Mile Reef sea temperature is 18.8° C
(Which is normal for this time of year)

How big are the waves at Nine Mile Reef today?

The current surf forecast for Nine Mile Reef at 9AM is: 1.3m 8s primary swell from a South direction and 0.4m 12s secondary swell from a West-southwest direction (forecast issued at 07:00am December 18). The wind direction is predicted to be onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (18 Dec)	4.5ft (1.3m)	8s
Afternoon (18 Dec)	4.5ft (1.3m)	10s
Evening (18 Dec)	4.5ft (1.4m)	12s

Table - waves today at Nine Mile Reef. (Swell directed towards the surf break)

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Thursday 18							Friday 19								Saturday 20								Sun 21
	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	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 (?)	S	S	SSE	SSE	SSE	SSE	SSE	SSE	SSE	SW	SSE	SSE	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SSW
Period(s) (?)	8	8	9	10	10	12	12	11	11	10	11	5	13	12	12	12	12	13	14	14	14	14	13	13
Wave Graph (?)
kJ (?)	266	230	177	356	385	497	521	400	372	123	334	99	151	397	517	715	826	853	1083	1240	1099	942	734	630
Wind (km/h)	SE	SE	S	S	S	SSE	SSE	SSE	SSE	SSE	S	S	S	SSE	SSE	SE	SE	SE	SSE	SSE	SSE	SE	ESE	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	on	on	on	on	cross- on	cross- on	cross- on	on	on	on	on	on	cross- on	cross- on	cross- on	cross- on	cross- on	on	cross- on	cross- on	cross- on	cross- on
High Tide / height (m)	2:15AM 1.28				2:18PM 1.36				2:50AM 1.33				2:53PM 1.39				3:23AM 1.37				3:27PM 1.41
Low Tide / height (m)			8:17AM 0.38				8:41PM 0.23				8:52AM 0.34				9:14PM 0.20				9:26AM 0.32				9:46PM 0.18

	Thursday 18							Friday 19								Saturday 20								Sun 21
Sunrise	-	5:28	-	-	-	-	-	-	-	5:28	-	-	-	-	-	-	-	5:28	-	-	-	-	-	-
Sunset	-	-	-	-	7:53	-	-	-	-	-	-	-	7:53	-	-	-	-	-	-	-	7:54	-	-	-

Rain (mm)	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	16	18	20	20	19	18	17	16	16	18	22	22	21	19	18	17	16	20	26	27	26	23	20	19
Feels °C (?)	13	15	15	14	13	13	14	13	13	15	18	16	15	14	14	14	14	17	21	21	19	19	17	17

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

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