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Thermopylae Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Thermopylae surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 am Thursday 07 May 2026 SASTForecast update in hr min s Forecast update imminent
Thermopylae surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thermopylae sea temperature is
16.1° C
(Which is 1.3°C colder than average for this time of year)How big are the waves at Thermopylae today?
The current surf forecast for Thermopylae at 4AM is: 2.1m 11s primary swell from a South-southeast direction and 1.5m 8s secondary swell from a South direction, 0.8m 13s secondary swell from a West-southwest direction (forecast issued at 01:00am May 07). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 May) | 6ft (1.9m) | 11s |
| Afternoon (07 May) | 3.5ft (1.0m) | 14s |
| Evening (07 May) | 3.5ft (1.1m) | 13s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 13mm), heaviest on Sat night. Very mild (max 17°C on Thu morning, min 14°C on Thu night). Winds increasing (calm on Fri night, near gales from the N by Sat night). | ||||||||||||||||||||||||
Thursday 7 | Friday 8 | Saturday 9 | ||||||||||||||||||||||
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 | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSE 11 | S 8 | SE 11 | S 9 | WSW 14 | WSW 13 | WSW 13 | WSW 18 | WSW 18 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | |
954 | 313 | 911 | 506 | 413 | 434 | 414 | 413 | 596 | 921 | 1261 | 1948 | 1875 | 1689 | 1475 | 1435 | 1301 | 1143 | 985 | 484 | 883 | 791 | 680 | 590 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | |
High Tide | 6:01AM1.40m | 6:44PM1.40m | 6:50AM1.31m | 7:44PM1.36m | 8:02AM1.25m | 9:00PM1.35m | ||||||||||||||||||
Low Tide | 11:56PM0.74m | 12:14PM0.65m | 00:49AM0.80m | 1:06PM0.73m | 2:07AM0.84m | 2:21PM0.78m | ||||||||||||||||||
 | |  | | | | |  |  | |  | | | | | | | | | |  | | | | |
 | — | 7:24 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 5:59 | — | — | — | — | — | — | — | 5:58 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 15 | 17 | 17 | 17 | 16 | 15 | 15 | 14 | 14 | 16 | 17 | 17 | 16 | 15 | 15 | 14 | 14 | 16 | 17 | 16 | 15 | 14 |
12 | 12 | 12 | 13 | 12 | 13 | 12 | 12 | 13 | 12 | 12 | 14 | 14 | 14 | 13 | 14 | 15 | 13 | 13 | 14 | 13 | 11 | 9 | 7 | |
Swell 1 Height (m) Direction Period (s) | SSE 10 | S 8 | S 9 | S 8 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 17 | WSW 16 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 |
 kJ | 333 | 313 | 390 | 163 | 413 | 434 | 414 | 408 | 476 | 921 | 1261 | 1948 | 1875 | 1689 | 1475 | 1435 | 1301 | 1143 | 985 | 484 | 883 | 791 | 680 | 590 |
Swell 2 Height (m) Direction Period (s) | SSW 9 | WSW 13 | SW 12 | SSE 9 | SE 14 | WSW 20 | WSW 19 | WSW 18 | WSW 18 | WSW 13 | SSE 10 | SSE 9 | SSE 12 | SSE 16 | SE 13 | SSE 15 | SSE 15 | SSE 14 | SSE 14 | SW 14 | SSE 13 | SSE 13 | SSE 12 | SSE 12 |
| kJ | 237 | 206 | 144 | 158 | 53 | 149 | 248 | 413 | 596 | 461 | 341 | 259 | 99 | 173 | 700 | 474 | 376 | 361 | 273 | 404 | 195 | 186 | 136 | 98 |
Swell 3 Height (m) Direction Period (s) | WSW 13 | SSE 10 | WSW 15 | WSW 15 | WSW 20 | SE 14 | SE 14 | SSE 11 | S 10 | WSW 13 | WSW 13 | SSE 18 | — | SSE 16 | SSE 16 | SSE 15 | SSE 15 | SE 14 | SE 14 | SSE 13 | SW 14 | — | — | — |
| kJ | 295 | 135 | 196 | 443 | 78 | 49 | 48 | 98 | 88 | 212 | 378 | 62 | — | 104 | 169 | 158 | 142 | 214 | 211 | 257 | 459 | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 11 | — | SE 11 | S 9 | S 8 | S 8 | S 8 | S 8 | SSE 11 | SSE 10 | — | SSE 8 | S 9 | S 9 | SSE 16 | — | — | — | — | — | — | NW 3 | NW 4 | NNW 5 |
| kJ | 954 | — | 911 | 506 | 309 | 264 | 264 | 195 | 400 | 385 | — | 185 | 158 | 158 | 662 | — | — | — | — | — | — | 4 | 12 | 74 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 1 | 0 | 1 | 21 | 21 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 8 | 0 | 0 | 0 | 0 | 11 | 11 | 17 | 24 | 74 | 74 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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