Arniston 48 hour detailed Surf Forecast

Lat Long: 34.69° S 20.23° E

Issued: 7 am 29 Jul 2026 (local time)

Forecast update in hr min

Today's Arniston sea temperature is

16.1° 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 Jul):

Morning surf: Morning surf (29 Jul, local time) - 4.5ft (1.3m), 14s period with SSW swell.
Afternoon surf: Afternoon surf (29 Jul, local time) - 4.5ft (1.3m), 14s period with SSW swell.
Evening surf: Evening surf (29 Jul, local time) - 4.5ft (1.3m), 14s period with SSW swell.

The current surf forecast for Arniston at 3PM is: 1.3m 14s primary swell from a South-southwest direction and 0.1m 11s secondary swell from a South direction, 1.5m 6s secondary swell from a East direction (forecast issued at 07:00am July 29). The wind direction is predicted to be cross-onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (29 Jul)	4.5ft (1.3m)	14s
Afternoon (29 Jul)	4.5ft (1.3m)	14s
Evening (29 Jul)	4.5ft (1.3m)	14s

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

	Short Range Forecast Mostly dry. Very mild (max 15°C on Wed afternoon, min 13°C on Fri morning). Winds decreasing (strong winds from the E on Thu night, light winds from the NE by Fri night).
	Wednesday 29							Thursday 30								Friday 31
	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	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 13	SSW 13	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	E 8	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	E 6	E 7	E 8	E 8	E 8	E 8	ESE 8	ESE 8	ESE 8
Wave Graph
kJ	624	595	631	622	613	572	572	482	482	402	396	331	326	273	322	456	593	510	510	603	748	812	766
Wind (km/h)	ENE	ENE	ENE	E	E	ENE	ENE	ENE	ENE	ENE	E	E	E	E	E	ENE	ENE	ENE	ENE	E	E	ENE	ENE
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	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
High Tide					3:33PM1.76m				3:37AM1.75m				4:01PM1.83m				4:06AM1.77m				4:30PM1.87m
Low Tide			9:22AM0.20m				9:39PM0.31m				9:49AM0.15m				10:08PM0.26m				10:16AM0.12m				10:37PM0.24m


	7:35	—	—	—	—	—	—	—	7:35	—	—	—	—	—	—	—	7:33	—	—	—	—	—	—
	—	—	—	—	5:54	—	—	—	—	—	—	—	5:55	—	—	—	—	—	—	—	5:57	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	14	14	14	15	15	15	15	14	14	14	14	15	15	15	14	14	14	13	14	15	15	15	15
Feels °C	8	8	8	9	9	9	10	9	10	10	9	9	8	9	7	8	9	8	8	9	9	9	10
Swell 1 Height (m) Direction Period (s)	SSW 13	SSW 13	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	SSW 13	SW 12	SW 12	SW 12	SSW 12	SW 12	SW 12
kJ	624	595	631	622	613	572	572	482	482	402	396	331	326	273	282	222	212	159	152	118	98	72	71
Swell 2 Height (m) Direction Period (s)	S 11	S 11	S 11	S 11	S 10	S 10	S 10	S 10	S 10	S 10	—	—	—	—	—	—	—	—	SW 19	SW 18	SW 18	SW 17	SW 16
kJ	2	2	2	2	2	2	2	2	2	2	—	—	—	—	—	—	—	—	14	12	12	12	10
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	E 12	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	3	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	ESE 6	E 7	E 7	E 6	E 6	E 7	E 7	E 8	E 7	E 7	E 7	E 7	E 6	E 6	E 6	E 7	E 8	E 8	E 8	E 8	ESE 8	ESE 8	ESE 8
kJ	293	312	248	184	206	302	416	451	392	264	220	212	232	255	322	456	593	510	510	603	748	812	766
Nearest Offshore or Glassy	Bikini Beach (Gordon's Bay) Cape Town	De Kelders Overberg	De Kelders Overberg	Pringle Bay Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	Gansbaai Overberg	Gansbaai Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg
Rating (10 max)	1	4	4	3	4	4	3	3	3	3	3	3	3	3	3	3	2	2	2	2	2	2	2
Distance (km)	139	81	81	135	81	81	81	81	81	81	81	81	81	81	81	81	83	83	81	81	81	81	81
Best forecast wave conditions in Overberg	Koeel Bay	De Kelders	De Kelders	Koeel Bay	Hawston	Voelklip	Voelklip	Koeel Bay	Koeel Bay	Voelklip	Voelklip	Hawston	Hawston	Gansbaai	De Kelders	Voelklip	Koeel Bay	Koeel Bay	Koeel Bay	Koeel Bay	Koeel Bay	Koeel Bay	Hawston
Rating (10 max)	3	4	4	3	4	4	3	3	3	3	3	3	3	3	3	3	2	2	2	2	2	2	3
Best forecast wave conditions in South Africa	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Haga-Haga Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Morgans Bay Eastern Cape - Wild Coast	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3	3	4	4
Header Global	Ahijedero Mexico	Ahijedero Mexico	Point Roadnight Australia	Point Roadnight Australia	Ahijedero Mexico	Left Point Australia	Bancoora Australia	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico	Asu Indonesia	Arrawarra Australia	Arrawarra Australia	Asu Indonesia	Asu Indonesia	Nine Mile New Zealand	Spooky's New Zealand	Fox River New Zealand	Trial Harbour Australia	Bell Block Reef New Zealand
Rating (10 max)	4	4	7	6	4	5	4	4	4	4	4	4	4	4	4	4	4	4	9	6	5	5	5

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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 Jul):

Short Range Forecast

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