Thermopylae 48 hour detailed Surf Forecast

Lat Long: 33.90° S 18.40° E

Issued: 1 pm 28 Jul 2026 (local time)

Forecast update in hr min

Today's Thermopylae sea temperature is

14.1° C

Thermopylae 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 Thermopylae today (28 Jul):

Morning surf: Morning surf (28 Jul, local time) - 8ft (2.5m), 14s period with SW swell.
Afternoon surf: Afternoon surf (28 Jul, local time) - 7.5ft (2.3m), 14s period with SW swell.
Evening surf: Evening surf (28 Jul, local time) - 7ft (2.1m), 14s period with SW swell.

The current surf forecast for Thermopylae at 4PM is: 2.3m 14s primary swell from a Southwest direction and 1.7m 7s secondary swell from a South-southeast direction (forecast issued at 01:00pm July 28). The wind direction is predicted to be offshore and the swell rating is 4.

Time (SAST) & Date	Wave Height	Wave Period
Morning (28 Jul)	8ft (2.5m)	14s
Afternoon (28 Jul)	7.5ft (2.3m)	14s
Evening (28 Jul)	7ft (2.1m)	14s

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

	Short Range Forecast Mostly dry. Very mild (max 19°C on Fri morning, min 13°C on Tue night). Wind will be generally light.
	Tue 28					Wednesday 29								Thursday 30
	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)	2	3	4	4	4	4	4	4	4	4	3	3	4	4	3	3	3	2	2	3	3
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 14	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13
Wave Graph
kJ	2358	2201	2140	1785	1615	1367	1247	1144	1053	1083	1099	1099	1083	976	891	809	809	680	669	609	553
Wind (km/h)	ESE	ESE	ESE	ESE	ESE	ESE	ESE	ESE	E	SW	SSW	S	SE	E	E	E	E	S	SSW	ESE	ENE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	off	cross-off	cross-off	cross-off	cross-off	off	off	cross-on	cross	cross	cross-off	off	off	off	glassy	cross	cross	glassy	cross-off
High Tide			3:08PM1.58m				3:10AM1.57m				3:37PM1.64m				3:42AM1.61m				4:06PM1.69m
Low Tide	8:50AM0.46m				9:09PM0.55m				9:20AM0.41m				9:41PM0.49m				9:49AM0.37m				10:11PM0.45m


	—	—	—	—	—	—	7:41	—	—	—	—	—	—	—	7:39	—	—	—	—	—	—
	—	—	6:02	—	—	—	—	—	—	—	6:04	—	—	—	—	—	—	—	6:05	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	14	17	17	15	13	13	13	13	14	17	17	16	16	16	15	15	16	18	18	18	18
Feels °C	8	12	13	12	10	11	11	10	12	15	14	13	14	14	13	13	14	16	15	16	16
Swell 1 Height (m) Direction Period (s)	SW 14	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13
kJ	2358	2201	2140	1785	1615	1367	1247	1144	1053	1083	1099	1099	1083	976	891	809	809	680	669	609	553
Swell 2 Height (m) Direction Period (s)	—	—	—	—	—	—	SSE 7	SSE 7	SSE 7	SSE 7	SSE 7	—	SSE 6	SSE 6	SSE 6	SSE 6	SSE 6	SSE 6	SSE 6	SSE 6	SSE 6
kJ	—	—	—	—	—	—	114	93	66	44	30	—	35	26	22	17	14	13	13	13	21
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	SSE 7	SSE 7	SSE 7	SSE 7	SSE 7	SSE 7	SE 7	SE 7	SE 7	SE 7	SE 7	SSE 6	SE 6	SE 6	—	—	—	SE 6	SE 6	SE 6	—
kJ	363	324	302	263	207	146	279	206	169	84	84	27	96	76	—	—	—	29	45	51	—
Nearest Offshore or Glassy	Dumps Cape Town	Off The Wall Cape Town	Dumps Cape Town	Off The Wall Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Off The Wall Cape Town	Off The Wall Cape Town	Off The Wall Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Thermopylae Cape Town	Off The Wall Cape Town
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3
Distance (km)	8	1	8	1	0	0	0	0	0	0	0	1	1	1	0	0	0	0	0	0	1
Best forecast wave conditions in Cape Town	Kamer Van	Haakgat	Kamer Van	Haakgat	Haakgat	Haakgat	The Hoek	Van Riebeek	Kreefte Reef	Kreefte Reef	Van Riebeek	The Hoek	The Hoek	The Hoek	Van Riebeek	Van Riebeek	Kreefte Reef	Kreefte Reef	Kreefte Reef	Van Riebeek	The Hoek
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	3
Best forecast wave conditions in South Africa	Fish Boma Garden Route	Fish Boma Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Gerickes Point Garden Route	Goukamma River Mouth Garden Route	Gerickes Point Garden Route	Fish Boma Garden Route	Umzumbe Durban/KZN South	Gerickes Point Garden Route	Gerickes Point Garden Route	Whispering Waves Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Periwinkles Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast	Whispering Waves Eastern Cape - Wild Coast
Rating (10 max)	5	5	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Header Global	Cape St Martin South Africa	Doring Bay South Africa	Etang-Sale Reunion	Punta Palmilla Mexico	Chameau Mauritius	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Ahijedero Mexico	Ahijedero Mexico	Point Roadnight Australia	Point Roadnight Australia	Ala Moana Bowls United States	Bancoora Australia	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico	Ahijedero Mexico
Rating (10 max)	5	5	5	6	5	5	5	5	5	4	4	7	5	4	4	4	4	4	4	4	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

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

Ben Mondy

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 Thermopylae 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.

Thermopylae 48 hour detailed Surf Forecast

How big are the waves at Thermopylae today (28 Jul):

Short Range Forecast

Latest Updates

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

How Our WaveFinder Tool Makes Forecasting Easier Than Ever Before

The Five Best Forecasts For International Surfing Day 2026

Best Surf Travel Deals & Discounts For 2026 To Help Make Surf Travel Cheaper

FREE! Surf-Forecast.com widget for your website