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 am 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 4PM is: 0.9m 11s primary swell from a South direction and 0.7m 6s secondary swell from a East-southeast direction (forecast issued at 07:00am May 17). The wind direction is predicted to be cross-onshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (17 May)	3.5ft (1.1m)	11s
Afternoon (17 May)	3ft (0.9m)	11s
Evening (17 May)	2.5ft (0.7m)	14s

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 11mm), heaviest on Tue night. Very mild (max 18°C on Mon morning, min 16°C on Sun morning). Winds increasing (calm on Sun morning, strong winds from the E by Tue night).
	Sunday 17							Monday 18								Tuesday 19								Wed 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	2 AM
Rating (10 max)	2	2	1	0	0	0	1	1	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	SSE 11	S 11	S 11	S 11	SW 14	SW 14	SW 13	SW 13	SW 14	SW 15	SW 15	SW 14	S 8	SSE 8	SE 8	SE 8	SE 8	SE 8	SE 8	SE 8	SE 9	ESE 9	ESE 9
Wave Graph
kJ	338	356	235	184	184	195	181	176	176	228	326	309	297	210	579	675	743	756	667	701	800	1325	1805	1539
Wind (km/h)	SE	SW	S	S	SSE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	E	E	E	E	E	E
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	glassy	cross	cross-on	cross-on	cross-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
Low Tide			9:30AM-0.03m				9:44PM0.14m				10:14AM0.02m				10:31PM0.20m					11:01AM0.12m				11:23PM0.30m


	7:26	—	—	—	—	—	—	—	7:26	—	—	—	—	—	—	—	7:28	—	—	—	—	—	—	7:28
	—	—	—	—	5:43	—	—	—	—	—	—	—	5:43	—	—	—	—	—	—	—	5:42	—	—	5:40
mm	—	—	—	—	—	—	—	—	—	—	1	—	—	1	—	1	—	—	1	1	—	1	2	1
Temp °C	16	16	17	17	17	17	17	17	17	17	18	18	18	18	18	17	17	17	17	17	17	18	18	18
Feels °C	17	16	16	16	16	17	17	17	16	16	15	15	14	13	12	10	10	12	13	12	12	11	12	12
Swell 1 Height (m) Direction Period (s)	S 11	SSE 11	S 11	S 11	S 11	S 10	S 10	ESE 6	SW 13	SW 14	SW 15	SW 15	SW 14	S 8	SW 13	SW 12	SW 14	SW 13	SW 13	SW 13	SW 13	SSE 13	SW 13	SSE 12
kJ	338	356	235	184	184	135	130	31	176	228	326	309	297	210	113	96	116	113	111	111	108	114	59	133
Swell 2 Height (m) Direction Period (s)	SW 13	SW 12	SW 13	ESE 6	ESE 6	ESE 6	ESE 6	SW 13	ESE 6	S 5	SSE 13	S 13	S 12	SW 14	SSW 12	SSW 12	SSW 12	SSW 11	SSE 15	SSE 14	SSE 14	SW 13	SSE 12	SW 13
kJ	134	124	132	30	31	34	44	176	32	29	173	115	104	116	89	61	28	23	42	78	73	83	138	56
Swell 3 Height (m) Direction Period (s)	E 4	S 13	ESE 6	SW 12	SW 14	SW 14	SW 14	SSE 14	S 10	E 6	SSW 16	S 12	SSW 8	SSW 13	SSE 12	SSE 16	SSE 16	SSE 15	SSW 11	SSW 10	SSW 10	SSW 10	SSW 9	SSW 9
kJ	2	4	22	71	164	195	181	143	74	31	102	146	38	99	28	26	25	45	23	38	19	18	16	17
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	SE 6	—	SE 6	SE 6	SE 5	ESE 5	SSE 8	SE 8	SE 8	SE 8	SE 8	SE 8	SE 8	SE 9	ESE 9	ESE 9
kJ	—	—	—	—	—	—	—	—	88	—	74	87	73	67	579	675	743	756	667	701	800	1325	1805	1539
Nearest Offshore or Glassy	Arniston Overberg	Arniston Overberg	De Kelders Overberg	Dolphin Point Overberg	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	Kamer Van Cape Town	Kamer Van Cape Town	Big Bay Cape Town	Dumps Cape Town	Dumps Cape Town	Milnerton Cape Town	Dumps Cape Town	Sandy Bay Cape Town	Dumps Cape Town	Strand (Pipe) Cape Town	Dumps Cape Town	Dumps Cape Town
Rating (10 max)	2	2	3	2	2	4	3	3	3	3	4	4	3	4	4	2	2	3	2	3	2	3	2	2
Distance (km)	0	0	81	113	107	81	81	81	81	81	81	191	192	192	192	184	184	186	184	190	184	144	184	184
Best forecast wave conditions in Overberg	Dolphin Point	Jongensfontein	Dolphin Point	Dolphin Point	Dolphin Point	Voelklip	Dolphin Point	Dolphin Point	Dolphin Point	Dolphin Point	De Kelders
Rating (10 max)	3	3	3	2	2	4	3	3	3	3	4
Best forecast wave conditions in South Africa	Sea Vista Eastern Cape (S)	Haga-Haga Eastern Cape - Wild Coast	Gerickes Point Garden Route	Heaven West Coast	Cape St Martin West Coast	Cape St Martin West Coast	Cape St Martin West Coast	Cape St Martin West Coast	Cape St Martin West Coast	Cape St Martin West Coast	Cape St Martin West Coast	Heaven West Coast	Heaven West Coast	Fish Boma Garden Route	Heaven West Coast	Gerickes Point Garden Route	Sea Vista Eastern Cape (S)	Van Stadens Mouth Eastern Cape (S)	Strandfontein West Coast	Vredenberg Point West Coast	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route
Rating (10 max)	4	3	3	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Header Global	Beach Road South Africa	Moss Landing United States	Bay of Skaill United Kingdom	Bali Village Indonesia	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	Beach Road South Africa	Beach Road South Africa	Cortez Bank United States	Bali Village Indonesia	JD Reef Australia	Back Bommie Australia	Avalon-North Australia	Black Rock Australia	Bankvaults Indonesia	Bankvaults Indonesia	Cronulla Point Australia	Butterbox Australia	Cronulla Point Australia	Afife Portugal
Rating (10 max)	4	5	4	4	8	6	4	4	5	7	4	4	5	4	5	5	4	4	4	4	5	5	5	4

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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