Arniston 48 hour detailed Surf Forecast

Lat Long: 34.69° S 20.23° E

Issued: 7 am 29 Sep 2026 (local time)

Forecast update in hr min

Today's Arniston sea temperature is

16.3°C

Arniston 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 Arniston today (29 Sep):

Morning surf: Morning surf (29 Sep, local time) - 4.5ft (1.4m), 10s period with SSE swell.
Afternoon surf: Afternoon surf (29 Sep, local time) - 8ft (2.5m), 7s period with ESE swell.
Evening surf: Evening surf (29 Sep, local time) - 8ft (2.4m), 7s period with E swell.

The current surf forecast for Arniston at 2PM is: 2.5m 7s primary swell from a East-southeast direction and 0.6m 13s secondary swell from a South-southwest direction, 0.8m 13s secondary swell from a Southwest direction (forecast issued at 07:00am September 29). The wind direction is predicted to be onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (29 Sep)	4.5ft (1.4m)	10s
Afternoon (29 Sep)	8ft (2.5m)	7s
Evening (29 Sep)	8ft (2.4m)	7s

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

	Short Range Forecast Mostly dry. Warm (max 26°C on Wed night, min 13°C on Tue night). Winds decreasing (strong winds from the E on Tue afternoon, light winds from the E by Thu morning).
	Tuesday 29							Wednesday 30								Thursday 1
	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	0	0	0	0	0	0	!	!	!	!	1	1	2	3
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSE 8	SSE 10	SSE 10	ESE 7	E 7	E 7	E 7	E 8	E 8	E 8	ESE 8	ESE 9	ESE 9	ESE 9	E 9	E 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10
Wave Graph
kJ	313	402	339	606	467	426	787	1257	1130	947	936	1023	1236	1263	859	1536	1384	1186	980	810	574	523	463
Wind (km/h)	E	ENE	E	E	E	E	ENE	E	ENE	ENE	ENE	E	E	E	ENE	NE	NNE	SW	E	SSW	SW	WSW	SW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	cross-on	cross-on	on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross	cross-off	cross-on	cross	cross-off	cross-off	cross-off
High Tide					4:34PM1.98m				4:58AM1.76m					5:12PM1.84m				5:38AM1.62m				5:55PM1.66m
Low Tide			10:21AM0.12m				10:50PM0.09m				10:57AM0.22m					11:28PM0.23m				11:37AM0.38m


	6:18	—	—	—	—	—	—	—	6:18	—	—	—	—	—	—	—	6:16	—	—	—	—	—	—
	—	—	—	—	6:39	—	—	—	—	—	—	—	6:39	—	—	—	—	—	—	—	6:40	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	14	14	15	15	15	15	15	14	13	14	17	21	20	20	20	22	26	18	23	22	17	15	15
Feels °C	7	6	6	5	6	7	7	6	6	8	11	15	13	14	15	19	22	16	23	18	12	13	14
Swell 1 Height (m) Direction Period (s)	SSE 8	SSE 10	SSE 10	SSW 13	SSE 9	SSE 8	SSE 9	SSW 16	SSW 16	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SE 11	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10	ESE 10
kJ	313	402	339	120	249	208	161	223	217	144	138	134	129	134	347	1302	1384	1186	980	810	574	523	463
Swell 2 Height (m) Direction Period (s)	SW 12	SSW 14	SW 14	SW 13	SSW 13	SSW 13	SW 13	SSW 16	SSW 16	SSE 8	—	—	—	SE 10	SSW 14	SW 13	SW 13	SSW 13	SW 13	SW 12	SE 11	SW 8	SW 12
kJ	35	79	91	250	118	114	82	104	100	7	—	—	—	122	133	88	84	34	40	23	97	45	87
Swell 3 Height (m) Direction Period (s)	SSW 15	SW 12	SW 11	WSW 11	WSW 11	—	SSW 17	SW 16	—	—	—	—	—	—	—	SW 13	SW 13	SW 12	WSW 12	SSW 12	SSW 12	SW 12	SE 11
kJ	42	35	61	79	23	—	54	129	—	—	—	—	—	—	—	168	282	24	15	15	29	36	19
Wind waves Height (m) Direction Period (s)	E 6	E 6	E 6	ESE 7	E 7	E 7	E 7	E 8	E 8	E 8	ESE 8	ESE 9	ESE 9	ESE 9	E 9	E 10	—	W 3	—	SW 3	WSW 4	—	—
kJ	133	255	332	606	467	426	787	1257	1130	947	936	1023	1236	1263	859	1536	—	5	—	2	23	—	—
Nearest Offshore or Glassy	Koeel Bay Overberg	Koeel Bay Overberg	Moonlight Bay Overberg	Moonlight Bay Overberg	Koeel Bay Overberg	Koeel Bay Overberg	Strand (Pipe) Cape Town	De Kelders Overberg	De Kelders Overberg	Gansbaai Overberg	Gansbaai Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	Voelklip Overberg	Voelklip Overberg	Struisbaai Overberg	Struisbaai Overberg	Struisbaai Overberg	Cape Infanta Overberg	Nine Mile Reef Cape Town	Struisbaai Overberg	Arniston Overberg
Rating (10 max)	2	2	2	2	2	2	2	2	3	2	2	2	2	2	2	2	2	2	1	3	1	2	3
Distance (km)	140	140	137	137	140	140	144	81	81	83	83	81	81	81	93	93	19	19	19	65	160	19	0
Best forecast wave conditions in Overberg	Koeel Bay	Koeel Bay	Koeel Bay	Koeel Bay	Koeel Bay	Koeel Bay		Voelklip	Koeel Bay	Voelklip	Pringle Bay	Pringle Bay	Koeel Bay	Koeel Bay	Kleinmond	Kleinmond	Onrus	Cape Infanta	Dolphin Point	Vleesbaai		Vleesbaai	Dolphin Point
Rating (10 max)	2	2	2	2	2	2		2	3	3	3	3	2	3	3	3	2	3	4	3		3	3
Best forecast wave conditions in South Africa	Haga-Haga Eastern Cape - Wild Coast	Goukamma River Mouth Garden Route	Koeel Bay Overberg	Koeel Bay Overberg	Koeel Bay Overberg	Gerickes Point Garden Route	Gerickes Point Garden Route	The Hoek Cape Town	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Fish Boma Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Fish Boma Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Vleesbaai Overberg	Goukamma River Mouth Garden Route
Rating (10 max)	4	4	2	2	2	4	4	4	3	4	4	4	4	4	5	5	4	4	4	3	3	3	3
Header Global	Airport Rights New Zealand	Humenga Point New Zealand	White Rock - The Spit New Zealand	Dunedin - Bobs Beach New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Fullers United States	Dinner Plates New Zealand	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Ouano Lefts New Caledonia	Gerickes Point South Africa	Cavalos de Fao Portugal	Easky Left Ireland	Easky Left Ireland	Easky Left Ireland	Gas Bay Australia	Cobblestones Australia	Cobblestones Australia	Anael France
Rating (10 max)	5	5	6	9	8	7	7	6	5	5	5	5	4	5	5	5	9	9	8	7	6	6	5

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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Arniston 48 hour detailed Surf Forecast

How big are the waves at Arniston today (29 Sep):

Short Range Forecast

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