Nine Mile Reef 48 hour detailed Surf Forecast

Lat Long: 34.07° S 18.66° E

Issued: 7 am 18 Sep 2026 (local time)

Forecast update in hr min

Today's Nine Mile Reef sea temperature is

13.7°C

Nine Mile Reef 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 Nine Mile Reef today (18 Sep):

Morning surf: Morning surf (18 Sep, local time) - 3.5ft (1.1m), 11s period with SW swell.
Afternoon surf: Afternoon surf (18 Sep, local time) - 3.5ft (1.1m), 13s period with SW swell.
Evening surf: Evening surf (18 Sep, local time) - 3.5ft (1.0m), 13s period with SW swell.

The current surf forecast for Nine Mile Reef at 1PM is: 1.1m 12s primary swell from a Southwest direction and 0.5m 15s secondary swell from a South-southwest direction, 1.5m 6s secondary swell from a Southeast direction (forecast issued at 07:00am September 18). The wind direction is predicted to be cross-onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (18 Sep)	3.5ft (1.1m)	11s
Afternoon (18 Sep)	3.5ft (1.1m)	13s
Evening (18 Sep)	3.5ft (1.0m)	13s

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

	Short Range Forecast Mostly dry. Warm (max 25°C on Sun afternoon, min 11°C on Fri morning). Winds decreasing (fresh winds from the SE on Fri afternoon, light winds from the SE by Sun morning).
	Friday 18							Saturday 19								Sunday 20
	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)	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	1	1	2	2	1	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 11	SSW 11	SW 11	SW 13	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 12
Wave Graph
kJ	288	335	288	437	437	388	321	306	292	287	200	167	412	606	788	754	642	569	503	431	320	269	256
Wind (km/h)	ESE	ESE	SE	SE	SE	ESE	SE	SE	ESE	ESE	SSE	SSE	SSE	SE	SE	ESE	ESE	ESE	SE	S	SSE	SE	ESE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross	on	on	cross-on	cross-on	cross-on	cross-on	cross-on	cross	cross-on	on	cross-on	cross-on	cross-on
High Tide		7:05AM1.02m				7:25PM1.02m					8:41AM0.92m				9:33PM0.94m					11:23AM0.96m
Low Tide				12:59PM0.64m				1:58AM0.65m					2:48PM0.74m				4:47AM0.67m					5:47PM0.69m


	6:41	—	—	—	—	—	—	—	6:39	—	—	—	—	—	—	—	6:37	—	—	—	—	—	—
	—	—	—	—	6:37	—	—	—	—	—	—	—	6:38	—	—	—	—	—	—	—	6:38	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	11	11	15	19	19	15	13	12	12	13	18	21	21	17	15	15	15	16	22	25	24	20	18
Feels °C	6	6	9	12	12	11	10	9	10	11	15	19	18	14	12	13	13	14	21	24	23	19	17
Swell 1 Height (m) Direction Period (s)	SW 11	SSW 11	SW 11	SW 13	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 12
kJ	288	335	288	437	437	388	321	306	292	287	200	167	412	606	788	754	642	569	503	431	320	269	256
Swell 2 Height (m) Direction Period (s)	—	—	SSW 15	SW 20	SW 18	SSW 18	SW 18	SW 16	SW 16	SW 16	SW 15	SSW 15	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	121	15	12	31	12	41	66	10	106	142	—	—	—	—	—	—	—	—	—	—	—
Swell 3 Height (m) Direction Period (s)	—	—	SW 20	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	15	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	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 6	SE 6	SE 5	SE 6	SE 6	SE 6	SE 6	SE 6	SE 6	SE 5
kJ	103	102	103	150	231	188	150	85	72	82	60	92	222	167	96	71	58	58	50	77	159	184	73
Nearest Offshore or Glassy	Strand (Pipe) Cape Town	Strand (Pipe) Cape Town	Big Bay Cape Town	Dumps Cape Town	Dumps Cape Town	Strand (Pipe) Cape Town	Strand (Pipe) Cape Town	Strand (Pipe) Cape Town	Monwabisi Strand Cape Town	Monwabisi Strand Cape Town	Strand (Pipe) Cape Town	Koeel Bay Overberg	Off The Wall Cape Town	Bikini Beach (Gordon's Bay) Cape Town	Strand (Pipe) Cape Town	Strand (Pipe) Cape Town	Strand (Pipe) Cape Town	Monwabisi Strand Cape Town	Strand (Pipe) Cape Town	Strand (Pipe) Cape Town	Dumps Cape Town	Koeel Bay Overberg	Strand (Pipe) Cape Town
Rating (10 max)	2	2	3	3	3	3	2	2	2	2	2	2	4	1	3	3	3	3	3	2	3	2	2
Distance (km)	16	16	36	27	27	16	16	16	12	12	16	22	31	21	16	16	16	12	16	16	27	22	16
Best forecast wave conditions in Cape Town	Kreefte Reef	Kreefte Reef	Beach Road	Beach Road	Van Riebeek	Beach Road	Sollys	Captains	Kreefte Reef	Kreefte Reef	Noordhoek		Sollys	Captains	Beach Road	Beach Road	Kreefte Reef	Kreefte Reef	Kreefte Reef	Beach Road	Dumps	Sollys	Kreefte Reef
Rating (10 max)	3	3	3	3	4	4	4	4	3	3	4		4	4	4	4	4	4	4	4	3	4	3
Best forecast wave conditions in South Africa	Gerickes Point Garden Route	Gerickes Point Garden Route	Doring Bay West Coast	Pastures West Coast	Gerickes Point Garden Route	Gerickes Point Garden Route	Fish Boma Garden Route	Fish Boma Garden Route	Fish Boma Garden Route	Fish Boma Garden Route	Fish Boma Garden Route	Queensberry Bay Eastern Cape - Wild Coast	Queensberry Bay Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Fish Boma Garden Route	Fish Boma Garden Route	Haga-Haga Eastern Cape - Wild Coast	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Haga-Haga Eastern Cape - Wild Coast	Fish Boma Garden Route
Rating (10 max)	4	4	3	3	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Header Global	Otago Peninsula - Papanui Beach New Zealand	Otago Peninsula - Allans Beach New Zealand	Otago Peninsula - Sandfly Bay New Zealand	Otago Peninsula - Allans Beach New Zealand	Weld Road New Zealand	El Huerto Spain	El Huerto Spain	Cathedral Rock Australia	Shingles New Zealand	Fairhaven Australia	Kaifu Rivermouth Japan	Trial Harbour Australia	Trial Harbour Australia	Easter Reef Australia	Asu Indonesia	Asu Indonesia	Gas Bay Australia	Easky Left Ireland	Papatowai New Zealand	Papatowai New Zealand	Cobblestones Australia	Shipwrecks Bay-Peaks New Zealand	Shipwrecks Bay-Peaks New Zealand
Rating (10 max)	5	5	5	4	6	5	5	5	5	5	5	8	8	5	4	4	5	5	9	9	6	8	8

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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Nine Mile Reef 48 hour detailed Surf Forecast

How big are the waves at Nine Mile Reef today (18 Sep):

Short Range Forecast

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