Dias Beach 48 hour detailed Surf Forecast

Lat Long: 34.35° S 18.49° E

Issued: 1 am 18 Sep 2026 (local time)

Forecast update in hr min

Today's Dias Beach sea temperature is

14.0°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 (18 Sep):

Morning surf: Morning surf (18 Sep, local time) - 6ft (1.9m), 11s period with SW swell.
Afternoon surf: Afternoon surf (18 Sep, local time) - 6ft (1.8m), 13s period with SW swell.
Evening surf: Evening surf (18 Sep, local time) - 5.5ft (1.7m), 13s period with SW swell.

The current surf forecast for Dias Beach at 6AM is: 1.8m 11s primary swell from a Southwest direction and 2.1m 6s secondary swell from a East-southeast direction (forecast issued at 01:00am September 18). The wind direction is predicted to be cross-shore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (18 Sep)	6ft (1.9m)	11s
Afternoon (18 Sep)	6ft (1.8m)	13s
Evening (18 Sep)	5.5ft (1.7m)	13s

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

	Short Range Forecast Mostly dry. Warm (max 20°C on Sun afternoon, min 12°C on Fri morning). Winds decreasing (near gales from the ESE on Fri afternoon, moderate winds from the ESE by Sun morning).
	Friday 18								Saturday 19								Sunday 20
	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	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	1	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 11	SW 11	SW 11	SW 11	SW 13	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	WSW 13	WSW 13	WSW 13	WSW 13	WSW 12
Wave Graph
kJ	866	898	836	898	1109	1109	932	917	798	785	772	433	466	1255	1754	2006	2073	1804	1684	1401	1180	1100	953	771
Wind (km/h)	ESE	ESE	ESE	ESE	SE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	SE	SE	SE	SE	ESE	ESE	ESE	ESE	SE	SE	SE	ESE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross	cross-on	cross	cross	cross	cross	cross	cross	cross	cross-on	cross	cross
High Tide			7:06AM1.01m				7:26PM1.01m					8:42AM0.91m				9:33PM0.93m					11:22AM0.95m
Low Tide	00:52AM0.53m				1:00PM0.63m				1:59AM0.64m					2:48PM0.73m				4:46AM0.66m					5:46PM0.68m


	—	6:41	—	—	—	—	—	—	—	6:39	—	—	—	—	—	—	—	6:39	—	—	—	—	—	—
	—	—	—	—	—	6:38	—	—	—	—	—	—	—	6:38	—	—	—	—	—	—	—	6:39	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	12	12	12	13	16	16	14	13	13	12	12	14	17	15	16	15	16	16	15	18	20	18	18	17
Feels °C	2	2	2	3	6	5	4	5	6	5	5	7	10	6	7	7	9	10	10	14	14	11	11	10
Swell 1 Height (m) Direction Period (s)	SW 11	SW 11	SW 11	SW 11	SW 13	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	WSW 13	WSW 13	WSW 13	WSW 13	WSW 12
kJ	866	898	836	898	1109	1109	932	917	798	785	772	433	448	1255	1754	2006	2073	1804	1684	1401	1180	1100	953	771
Swell 2 Height (m) Direction Period (s)	—	—	—	SW 14	SW 20	WSW 18	SW 18	WSW 18	SW 16	SW 16	—	SW 14	SW 14	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	245	15	31	49	31	127	127	—	412	466	—	—	—	—	—	—	—	—	—	—	—
Swell 3 Height (m) Direction Period (s)	—	—	—	SW 20	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	15	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	ESE 6	ESE 6	ESE 6	ESE 6	SE 6	ESE 7	ESE 7	ESE 7	ESE 7	ESE 7	ESE 7	ESE 7	SE 6	SE 7	SE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	SE 6	SE 6	SE 6	ESE 6
kJ	275	333	359	320	364	537	695	672	495	459	479	431	376	444	439	381	325	335	309	260	292	390	408	335
Nearest Offshore or Glassy	Strand (Pipe) Cape Town	Sandy Bay Cape Town	Strand (Pipe) Cape Town	Dumps Cape Town	Milnerton Cape Town	Dumps Cape Town	Sandy Bay Cape Town	Koeel Bay Overberg	Dunes Cape Town	Dunes Cape Town	The Hoek Cape Town	Dunes Cape Town	The Hoek Cape Town	Queens Cape Town	Queens Cape Town	Bikini Beach (Gordon's Bay) Cape Town	Bikini Beach (Gordon's Bay) Cape Town	Dunes Cape Town	Inner Kom Cape Town	Olifants Bos Cape Town	Noordhoek Cape Town	Koeel Bay Overberg	Koeel Bay Overberg	Koeel Bay Overberg
Rating (10 max)	2	2	2	3	3	3	3	2	3	3	3	3	3	4	4	1	1	4	4	4	4	2	2	1
Distance (km)	41	39	41	52	56	52	39	35	29	29	32	29	32	49	49	39	39	29	28	15	29	35	35	35
Best forecast wave conditions in Cape Town	Van Riebeek	Kreefte Reef	Kreefte Reef	Beach Road	Beach Road	Holbaai	Beach Road	Off The Wall	Sunset	Kreefte Reef	Kreefte Reef	Kreefte Reef	The Hoek	Off The Wall	Beach Road	Beach Road	Tweede Steen	Kreefte Reef	Kreefte Reef	Kreefte Reef	Beach Road	Beach Road	Off The Wall	Kreefte Reef
Rating (10 max)	3	3	3	3	3	4	4	4	4	3	3	3	3	4	4	4	4	4	4	4	4	3	4	3
Best forecast wave conditions in South Africa	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Pastures West Coast	Gerickes Point Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Haga-Haga Eastern Cape - Wild Coast	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Sea Vista Eastern Cape (S)	Igoda Eastern Cape - Wild Coast	Igoda Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	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	Whispering Waves Eastern Cape - Wild Coast
Rating (10 max)	4	4	4	4	3	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3
Header Global	Guns Namibia	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Afife Portugal	Weld Road New Zealand	Weld Road New Zealand	El Huerto Spain	El Huerto Spain	Cathedral Rock Australia	Praia do Norte Portugal	Afife Portugal	Kaifu Rivermouth Japan	Trial Harbour Australia	Trial Harbour Australia	Jimmys Indonesia	Asu Indonesia	Asu Indonesia	Asu Indonesia	Gas Bay Australia	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Shipwrecks Bay-Peaks New Zealand	Shipwrecks Bay-Peaks New Zealand
Rating (10 max)	5	9	5	4	6	6	5	5	5	5	4	5	8	7	5	4	4	4	5	9	9	9	9	9

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

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

Ben Mondy

Summer School: The Timeline of The Boardshort

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Dias Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

Dias Beach 48 hour detailed Surf Forecast

How big are the waves at Dias Beach today (18 Sep):

Short Range Forecast

Latest Updates

Road Testing the new Db Surf Roller Pro

Summer's Short. Life Is Long.

Roadsurfing in the Basque country

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

Summer School: The Timeline of The Boardshort

FREE! Surf-Forecast.com widget for your website