Dias Beach 48 hour detailed Surf Forecast

Lat Long: 34.35° S 18.49° E

Issued: 1 am 20 Sep 2026 (local time)

Forecast update in hr min

Today's Dias Beach sea temperature is

13.8°C

Dias Beach 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 Dias Beach today (20 Sep):

Morning surf: Morning surf (20 Sep, local time) - 7ft (2.2m), 13s period with SW swell.
Afternoon surf: Afternoon surf (20 Sep, local time) - 6.5ft (2.0m), 13s period with WSW swell.
Evening surf: Evening surf (20 Sep, local time) - 5.5ft (1.7m), 12s period with WSW swell.

The current surf forecast for Dias Beach at 6AM is: 2.3m 13s primary swell from a Southwest direction and 1.7m 6s secondary swell from a East-southeast direction (forecast issued at 01:00am September 20). The wind direction is predicted to be cross-shore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (20 Sep)	7ft (2.2m)	13s
Afternoon (20 Sep)	6.5ft (2.0m)	13s
Evening (20 Sep)	5.5ft (1.7m)	12s

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

	Short Range Forecast Light rain (total 3mm), mostly falling on Mon night. Warm (max 24°C on Tue morning, min 15°C on Sun night). Winds decreasing (strong winds from the SE on Sun night, calm by Tue morning).
	Sunday 20								Monday 21								Tuesday 22
	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	5 PM	8 PM	11 PM
Rating (10 max)	0	1	1	1	0	0	0	0	0	0	0	0	0	0	0	1	1	2	3	3	1	2	3	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 13	SW 13	SW 13	WSW 13	WSW 13	WSW 13	WSW 13	WSW 12	WSW 12	WSW 12	WSW 12	WSW 12	WSW 12	SW 11	WSW 11	SW 11	SW 14	SW 11	SW 13	SW 13	SW 12	SW 12	SW 12	SW 11
Wave Graph
kJ	2042	1804	1684	1401	1289	1100	1049	857	759	616	536	536	456	373	329	314	280	303	400	424	379	442	486	389
Wind (km/h)	ESE	ESE	ESE	SE	SE	SE	SE	SE	SE	ESE	ESE	ESE	SE	SE	ESE	ESE	ESE	E	NE	NNW	SW	E	N	WNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross	cross-on	cross-on	cross-on	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross-off	cross-off	glassy	on	cross-off	cross-off	cross
High Tide					11:22AM0.95m				11:39PM0.99m				12:27PM1.07m				00:35AM1.10m				1:03PM1.21m
Low Tide		4:46AM0.66m					5:46PM0.68m				6:12AM0.56m				6:42PM0.56m				6:53AM0.44m				7:17PM0.43m


	—	6:39	—	—	—	—	—	—	—	6:37	—	—	—	—	—	—	—	6:35	—	—	—	—	—	—
	—	—	—	—	—	6:39	—	—	—	—	—	—	—	6:40	—	—	—	—	—	—	—	6:42	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	1	—	—	—	—	—	—	—
Temp °C	15	16	16	18	19	18	17	17	15	16	16	19	22	23	22	19	19	20	22	24	21	21	22	20
Feels °C	9	11	11	13	13	12	9	11	9	10	11	14	17	18	18	17	17	19	22	25	19	20	21	18
Swell 1 Height (m) Direction Period (s)	SW 13	SW 13	SW 13	WSW 13	WSW 13	WSW 13	WSW 13	WSW 12	WSW 12	WSW 12	WSW 12	WSW 12	WSW 12	SW 11	WSW 11	SW 11	SW 11	SW 11	SW 13	SW 13	SW 12	SW 12	SW 12	SW 11
kJ	2042	1804	1684	1401	1289	1100	1049	857	759	616	536	536	456	373	329	314	268	303	400	424	379	442	486	389
Swell 2 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	SSW 15	SW 15	SSW 15	SW 14	SW 14	SW 14	SW 13	SE 6	SE 6	SE 6	SE 7	ESE 8	ESE 8
kJ	—	—	—	—	—	—	—	—	—	—	—	45	57	146	214	211	280	183	88	56	33	43	40	41
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	SW 13	WSW 11	WSW 11	WSW 11	S 16	S 15	S 6
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	261	135	117	88	5	4	12
Wind waves Height (m) Direction Period (s)	ESE 6	ESE 6	ESE 6	SE 5	SE 6	SE 6	SE 6	SE 6	SE 6	ESE 6	SE 6	SE 6	SE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	—	NW 3	WNW 3	W 3	SW 3
kJ	188	164	164	129	178	260	244	189	182	170	200	249	282	309	293	223	170	132	133	—	2	3	3	2
Nearest Offshore or Glassy	Dunes Cape Town	Inner Kom Cape Town	Inner Kom Cape Town	Noordhoek Cape Town	Noordhoek Cape Town	The Hoek Cape Town	Koeel Bay Overberg	Koeel Bay Overberg	Koeel Bay Overberg	The Hoek Cape Town	Dunes Cape Town	Inner Kom Cape Town	Inner Kom Cape Town	Inner Kom Cape Town	Inner Kom Cape Town	Olifants Bos Cape Town	Underwater Point Cape Town	Underwater Point Cape Town	Dias Beach Cape Town	Dias Beach Cape Town	Buffels Bay Cape Town	Dias Beach Cape Town	Dias Beach Cape Town	Buffels Bay Cape Town
Rating (10 max)	4	4	4	4	4	3	2	1	1	3	2	2	2	2	2	2	3	2	3	3	2	2	3	1
Distance (km)	29	28	28	29	29	32	35	35	35	32	29	28	28	28	28	15	2	2	0	0	4	0	0	4
Best forecast wave conditions in Cape Town	Kreefte Reef	Kreefte Reef	Kreefte Reef	Beach Road	Beach Road	The Hoek	Captains	Kreefte Reef	Kreefte Reef	Kreefte Reef	Van Riebeek	Captains	Beach Road	The Hoek	Van Riebeek	The Hoek	The Hoek	Sunset	Van Riebeek	Outer Kom	Hout Bay	Kreefte Reef	Dias Beach	Hout Bay
Rating (10 max)	4	4	4	4	4	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	2	2	3	2
Best forecast wave conditions in South Africa	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Haga-Haga Eastern Cape - Wild Coast	Yellow sands Point Eastern Cape - Wild Coast	Gerickes Point Garden Route	Gerickes Point Garden Route	Haga-Haga Eastern Cape - Wild Coast	Goukamma River Mouth Garden Route	Haga-Haga Eastern Cape - Wild Coast	Haga-Haga Eastern Cape - Wild Coast	Goukamma River Mouth Garden Route	Hell West Coast	Strandfontein West Coast	The Hoek Cape Town	Van Riebeek Cape Town	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Fish Boma Garden Route	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route
Rating (10 max)	4	4	4	4	4	4	4	4	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
Header Global	Asu Indonesia	Gas Bay Australia	Nine Mile New Zealand	Papatowai New Zealand	Papatowai New Zealand	Shipwrecks Bay-Peaks New Zealand	Shipwrecks Bay-Peaks New Zealand	Shipwreck Bay-Supertubes New Zealand	Cyclops Australia	Cyclops Australia	Ethel Wreck Australia	Ahijedero Mexico	Ahijedero Mexico	Ouano Lefts New Caledonia	Easter Reef Australia	Easter Reef Australia	Papatowai New Zealand	Quarantine Australia	Frigates Fiji	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Trial Harbour Australia	Papatowai New Zealand
Rating (10 max)	4	5	8	9	9	7	8	8	5	5	5	4	4	6	8	9	8	6	5	9	9	8	6	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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Dias Beach 48 hour detailed Surf Forecast

How big are the waves at Dias Beach today (20 Sep):

Short Range Forecast

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