Dias Beach 48 hour detailed Surf Forecast

Lat Long: 34.35° S 18.49° E

Issued: 1 am 20 Jul 2026 (local time)

Forecast update in hr min

Today's Dias Beach sea temperature is

15.4° 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 Jul):

Morning surf: Morning surf (20 Jul, local time) - 6ft (1.9m), 10s period with SW swell.
Afternoon surf: Afternoon surf (20 Jul, local time) - 4.5ft (1.4m), 9s period with SW swell.
Evening surf: Evening surf (20 Jul, local time) - 2.5ft (0.8m), 10s period with SW swell.

The current surf forecast for Dias Beach at 9AM is: 1.9m 10s primary swell from a Southwest direction and 0.6m 10s secondary swell from a Southeast direction (forecast issued at 01:00am July 20). The wind direction is predicted to be cross-offshore.

Time (SAST) & Date	Wave Height	Wave Period
Morning (20 Jul)	6ft (1.9m)	10s
Afternoon (20 Jul)	4.5ft (1.4m)	9s
Evening (20 Jul)	2.5ft (0.8m)	10s

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

	Short Range Forecast Mostly dry. Very mild (max 16°C on Mon afternoon, min 13°C on Tue night). Winds increasing (calm on Tue morning, fresh winds from the NNW by Wed night).
	Monday 20								Tuesday 21								Wednesday 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)	3	3	2	2	2	0	0	1	3	4	4	!	!	!	!	2	2	3	3	3	2	3	2	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 10	SW 10	SW 10	SW 9	SW 9	SW 8	SW 10	SSW 16	SSW 15	SSW 15	SSW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 12	SW 12	SW 12
Wave Graph
kJ	1204	916	753	468	328	196	125	330	487	752	2250	3017	3094	2887	2561	2201	1878	1617	1687	1565	1358	1189	1112	607
Wind (km/h)	NNW	N	N	NNW	NW	WNW	W	WSW	WNW	WNW	W	SE	SSE	SSE	SSE	SE	SE	S	SW	WNW	WNW	NW	NNW	NNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross-off	cross	cross	cross-on	cross-on	glassy	glassy	glassy	glassy	cross-on	cross-on	cross-on	cross	cross-on	on	cross-on	cross	cross	cross-off	cross-off	cross-off
High Tide			7:21AM1.17m				7:44PM1.31m					8:12AM1.07m				8:35PM1.19m				9:19AM1.00m				9:42PM1.11m
Low Tide	1:24AM0.34m				1:20PM0.39m					2:13AM0.43m				2:07PM0.50m				3:13AM0.51m				3:11PM0.60m


	—	7:47	—	—	—	—	—	—	—	7:47	—	—	—	—	—	—	—	7:46	—	—	—	—	—	—
	—	—	—	—	—	5:57	—	—	—	—	—	—	—	5:57	—	—	—	—	—	—	—	5:58	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	15	15	15	15	16	16	15	15	15	14	14	14	14	14	14	14	13	13	13	14	14	14	14	14
Feels °C	11	12	11	12	13	12	13	13	14	13	13	13	12	10	10	11	11	12	12	12	10	9	9	8
Swell 1 Height (m) Direction Period (s)	SW 10	SW 10	SW 10	SW 9	SW 9	SW 8	SW 8	SW 8	SW 7	SSW 15	SSW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12	SW 12	SW 12	SW 12	SW 12
kJ	1204	916	753	468	328	196	125	128	118	752	2250	3017	3094	2887	2561	2201	1878	1617	1687	1565	1358	1189	1112	607
Swell 2 Height (m) Direction Period (s)	W 10	W 9	SE 10	W 10	SE 9	WNW 10	SW 10	SSW 16	SSW 15	SSW 11	SE 11	SE 11	SE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	ESE 11	SSW 14	SSW 14	SSW 14	SSW 12
kJ	92	83	76	94	70	128	124	330	487	375	123	123	123	107	105	78	75	75	65	45	163	198	145	318
Swell 3 Height (m) Direction Period (s)	SE 10	SE 10	W 10	SE 9	SSE 9	SW 11	W 10	SE 11	SW 12	ESE 11	W 9	WNW 9	W 9	W 9	—	—	—	—	—	SSW 15	ESE 11	ESE 11	ESE 11	SSE 9
kJ	80	79	68	71	8	155	92	128	236	157	39	26	14	14	—	—	—	—	—	72	46	46	47	61
Wind waves Height (m) Direction Period (s)	—	—	—	NNW 3	WNW 10	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	W 3	WNW 4	NW 4
kJ	—	—	—	7	137	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	5	16	39
Nearest Offshore or Glassy	Kalk Bay Reef Cape Town	Glencairn Cape Town	Clovelly Cape Town	Platboom Cape Town	Buffels Bay Cape Town	Black Rocks Cape Town	Platboom Cape Town	Buffels Bay Cape Town	Dias Beach Cape Town	Dias Beach Cape Town	Dias Beach Cape Town	Underwater Point Cape Town	Underwater Point Cape Town	Underwater Point Cape Town	Olifants Bos Cape Town	Olifants Bos Cape Town	Underwater Point Cape Town	Black Rocks Cape Town	Buffels Bay Cape Town	Buffels Bay Cape Town	Buffels Bay Cape Town	Buffels Bay Cape Town	Platboom Cape Town	Nine Mile Reef Cape Town
Rating (10 max)	3	2	2	3	1	1	2	2	3	4	4	4	5	4	4	4	4	3	3	3	3	3	4	3
Distance (km)	25	21	25	4	4	7	4	4	0	0	0	2	2	2	15	15	2	7	4	4	4	4	4	35
Best forecast wave conditions in Cape Town	Kreefte Reef	Hout Bay	Kreefte Reef	Kreefte Reef	Outer Kom	Hout Bay	Monwabisi Strand	Thermopylae	The Hoek	Sunset	Van Riebeek	Sunset	Sunset	Kamer Van	Haakgat	Haakgat	Kreefte Reef	Kreefte Reef	Kreefte Reef	Haakgat	Hout Bay	Cemetery	Van Riebeek	Van Riebeek
Rating (10 max)	4	2	3	3	3	2	2	3	3	4	4	5	5	4	4	4	4	4	4	4	3	4	4	4
Best forecast wave conditions in South Africa	Whispering Waves Eastern Cape - Wild Coast	Cintsa East Eastern Cape - Wild Coast	Whacky Point Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Super Tubes Eastern Cape (S)	Gerickes Point Garden Route	Haga-Haga Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Goukamma River Mouth Garden Route	Goukamma River Mouth Garden Route	Sunset Cape Town	Jongensfontein Overberg	Haga-Haga Eastern Cape - Wild Coast	Double Mouth Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Hamburg (Port Alfred) Eastern Cape (S)	Hout Bay Cape Town	Mtati Eastern Cape (S)	Kleinemonde Eastern Cape (S)	Vleesbaai Overberg
Rating (10 max)	4	4	4	4	4	3	4	3	3	4	4	5	5	4	4	4	4	4	4	4	3	4	4	4
Header Global	Otago Peninsula - Allans Beach New Zealand	Otago Peninsula - Allans Beach New Zealand	Ning Nong Point and Reef New Zealand	Ning Nong Point and Reef New Zealand	Last Chance New Zealand	Last Chance New Zealand	Seconds (White Rock) New Zealand	Diners Beach New Zealand	Purakaunui Bay New Zealand	Purakaunui Bay New Zealand	Aganoa Beach Samoa	Aganoa Beach Samoa	Jongensfontein South Africa	Bruces Beauties South Africa	Sea Vista South Africa	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cow Bombie Australia	Hanga Poukura Chile	Hanga Poukura Chile	Cathedral Rock Australia
Rating (10 max)	5	5	7	6	5	5	5	5	5	5	4	4	5	5	5	5	6	5	6	6	5	6	7	8

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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Dias Beach 48 hour detailed Surf Forecast

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

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