Arniston Surf Forecast

/ Overberg (23 surf breaks) /

South Africa (276 surf breaks)

Surf Forecasts:

Arniston surfForecast / Overberg / South Africa

48hr Weather and Surf, issued 7 pm Sunday 17 May 2026 SAST

Forecast update in hr min s Forecast update imminent

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

Today's Arniston sea temperature is 17.2° C
(Which is normal for this time of year)

How big are the waves at Arniston today?

The current surf forecast for Arniston at 3AM is: 0.7m 13s primary swell from a Southwest direction and 0.8m 6s secondary swell from a East-southeast direction (forecast issued at 07:00pm May 17). The wind direction is predicted to be onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (18 May)	2.5ft (0.8m)	14s
Afternoon (18 May)	3ft (0.9m)	14s
Evening (18 May)	4ft (1.2m)	8s

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

Updates in hr min s Forecast update imminent

	Short Range Forecast Moderate rain (total 10mm), heaviest on Tue afternoon. Very mild (max 18°C on Sun night, min 17°C on Sun night). Winds increasing (light winds from the ESE on Sun night, strong winds from the ESE by Tue night).
	Sun 17			Monday 18								Tuesday 19								Wed 20
	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	5 AM	8 AM	11 AM	2 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	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	S 11	SW 14	SW 14	SW 13	SW 13	SW 14	SW 15	SW 15	SW 14	S 8	S 8	S 8	SE 8	SE 8	SE 8	ESE 8	ESE 8	ESE 8	ESE 8	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9
Wave Graph
kJ	184	195	181	176	176	228	326	309	293	149	217	324	836	854	857	1291	1526	1363	1563	1606	1312	1296	1283	1494
Wind (km/h)	SSE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	E	ESE	ESE	E	E	E	E	ESE	E
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	cross-on	on	on	on	on	on	on	on	on	on	on	on	on	on	on	on	on	on	on	on	on	on	on
High Tide	3:41PM1.88m				3:54AM1.99m				4:26PM1.84m				4:40AM1.88m					5:14PM1.77m				5:30AM1.73m
Low Tide			9:44PM0.14m				10:14AM0.02m				10:31PM0.20m					11:01AM0.12m				11:23PM0.30m				11:50AM0.25m


	—	—	—	—	7:26	—	—	—	—	—	—	—	7:28	—	—	—	—	—	—	—	7:28	—	—	—
	5:43	—	—	—	—	—	—	—	5:43	—	—	—	—	—	—	—	5:42	—	—	—	—	—	—	5:40
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2	3	1	2	1	1	—	—	—
Temp °C	17	17	17	17	18	18	18	18	18	18	18	18	17	17	18	18	17	17	18	18	17	17	18	18
Feels °C	16	16	17	17	18	17	15	14	14	13	13	13	12	12	12	11	10	10	12	12	12	14	15	15
Swell 1 Height (m) Direction Period (s)	S 11	S 10	S 10	ESE 6	SW 13	SW 14	SW 15	SW 15	SW 14	S 8	S 8	S 8	SW 14	SW 13	SW 13	SW 13	SW 13	SW 13	SSE 13	SSE 12	SSE 12	SW 12	SW 12	ESE 9
kJ	184	135	130	45	176	228	326	309	293	149	217	324	116	142	113	111	108	60	111	104	101	52	23	1157
Swell 2 Height (m) Direction Period (s)	ESE 6	ESE 6	ESE 6	SW 13	S 10	S 10	SSE 13	S 13	S 12	SW 14	SW 13	SW 12	SSW 12	SSE 15	SE 15	SSE 14	SSE 14	SSE 14	SW 13	SW 13	SW 12	SSW 9	S 16	SW 12
kJ	31	34	44	176	98	77	173	115	104	116	113	96	14	45	55	78	73	71	59	56	53	16	20	23
Swell 3 Height (m) Direction Period (s)	SW 14	SW 14	SW 14	SSE 14	ESE 6	S 5	S 13	S 12	SSW 8	SSW 13	SSW 12	SSW 13	SSE 16	SSW 11	SSW 11	SSW 10	SSW 10	SSW 10	SSW 9	SSW 9	SSW 9	SW 16	SSW 16	SSW 15
kJ	164	195	181	143	43	13	85	148	36	99	89	62	25	11	22	19	18	18	29	17	17	11	25	23
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	ESE 6	SE 6	SE 5	SE 5	ESE 5	ESE 5	ESE 6	SE 8	SE 8	SE 8	ESE 8	ESE 8	ESE 8	ESE 8	ESE 9	ESE 9	ESE 9	ESE 9	ESE 9
kJ	—	—	—	—	—	44	64	58	72	52	111	198	836	854	857	1291	1526	1363	1563	1606	1312	1296	1283	1494
Nearest Offshore or Glassy	Hawston Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg	Off The Wall Cape Town	Off The Wall Cape Town	Strand (Pipe) Cape Town	Off The Wall Cape Town	Strand (Pipe) Cape Town	Dumps Cape Town	Milnerton Cape Town	Strand (Pipe) Cape Town	Koeel Bay Overberg	Strand (Pipe) Cape Town	Strand (Pipe) Cape Town	Strand (Pipe) Cape Town	Koeel Bay Overberg	Koeel Bay Overberg	De Kelders Overberg	De Kelders Overberg	De Kelders Overberg
Rating (10 max)	2	4	3	3	3	4	4	4	4	3	4	3	2	4	3	3	3	3	3	4	2	2	2	4
Distance (km)	107	81	81	81	81	81	81	191	191	144	191	144	184	186	144	140	144	144	144	140	140	81	81	81
Best forecast wave conditions in Overberg	Vleesbaai	Voelklip	Dolphin Point	Dolphin Point	Dolphin Point	Voelklip	De Kelders									Koeel Bay				Koeel Bay	Koeel Bay	Gansbaai	Pringle Bay	Voelklip
Rating (10 max)	2	4	3	3	3	4	4									3				4	2	3	3	4
Best forecast wave conditions in South Africa	Goukamma River Mouth Garden Route	Voelklip Overberg	Cape St Martin West Coast	Goukamma River Mouth Garden Route	Strandfontein West Coast	Strandfontein West Coast	Strandfontein West Coast	Heaven West Coast	Van Stadens Mouth Eastern Cape (S)	Van Stadens Mouth Eastern Cape (S)	Van Stadens Mouth Eastern Cape (S)	Goukamma River Mouth Garden Route	Van Stadens Mouth Eastern Cape (S)	Van Stadens Mouth Eastern Cape (S)	Vredenberg Point West Coast	Koeel Bay Overberg	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	The Hoek Cape Town	Gerickes Point Garden Route
Rating (10 max)	3	4	4	3	4	4	4	4	4	4	4	4	4	4	4	3	4	4	4	4	4	4	4	4
Header Global	Fullers United States	Steamer Lane-The Point United States	Balephetrish (Tiree) United Kingdom	Balephetrish (Tiree) United Kingdom	Steamer Lane-Middle Peak United States	Boners United States	Ghost Tree United States	Beach Road South Africa	Cortez Bank United States	Bali Village Indonesia	Bali Village Indonesia	Bali Village Indonesia	Bali Village Indonesia	Black Rock Australia	Bankvaults Indonesia	Bankvaults Indonesia	Bali Village Indonesia	Bali Village Indonesia	Bali Village Indonesia	Afife Portugal	Cavalos de Fao Portugal	Arrifana Portugal	Achadas Da Cruz Portugal	Itaúna Brazil
Rating (10 max)	8	6	4	4	5	7	5	4	5	4	4	4	4	4	4	4	4	4	4	4	5	4	4	5

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

Latest Updates

Ben Mondy

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Arniston Surf Forecast

Arniston surfForecast / Overberg / South Africa

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