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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 7 pm Sunday 31 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
16.2° C
(Which is normal for this time of year)How big are the waves at Thermopylae today (01 Jun):
- Morning surf: Morning surf (01 Jun, local time) - 5.5ft (1.7m), 11s period with WSW swell.
- Afternoon surf: Afternoon surf (01 Jun, local time) - 6ft (1.8m), 11s period with WSW swell.
- Evening surf: Evening surf (01 Jun, local time) - 6.5ft (2.0m), 12s period with WSW swell.
The current surf forecast for Thermopylae at 12AM is: 1.5m 11s primary swell from a Southwest direction and 0.1m 9s secondary swell from a South direction (forecast issued at 07:00pm May 31). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Jun) | 5.5ft (1.7m) | 11s |
| Afternoon (01 Jun) | 6ft (1.8m) | 11s |
| Evening (01 Jun) | 6.5ft (2.0m) | 12s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Very mild (max 19°C on Sun night, min 14°C on Tue night). Winds increasing (calm on Mon morning, near gales from the SE by Wed afternoon). | ||||||||||||||||||||||||
Sun 31 | Monday 1 | Tuesday 2 | Wed 3 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 11 | WSW 11 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | SW 11 | SW 10 | SW 10 | S 8 | S 8 | SSW 13 | SW 13 | SW 13 | SW 13 | SSE 8 | SSE 9 | |
722 | 604 | 583 | 544 | 593 | 593 | 657 | 829 | 1010 | 1221 | 1096 | 1102 | 1186 | 1365 | 1334 | 1351 | 698 | 579 | 599 | 1110 | 1164 | 1112 | 1025 | 976 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-off | cross-off | glassy | glassy | glassy | glassy | cross-on | on | on | glassy | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 3:33PM1.58m | 3:33AM1.61m | 4:06PM1.58m | 4:05AM1.58m | 4:39PM1.57m | 4:38AM1.54m | ||||||||||||||||||
Low Tide | 9:27PM0.57m | 9:46AM0.43m | 10:00PM0.59m | 10:17AM0.44m | 10:35PM0.61m | 10:49AM0.48m | ||||||||||||||||||
 |  | | | |  |  | | |  | | |  |  | | | |  | | | | | | | |
 | — | — | — | — | 7:41 | — | — | — | — | — | — | — | 7:43 | — | — | — | — | — | — | — | 7:43 | — | — | — |
 | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | 5:45 |
— | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 19 | 19 | 18 | 18 | 18 | 17 | 18 | 19 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 15 | 14 | 14 |
18 | 18 | 16 | 17 | 18 | 17 | 17 | 18 | 16 | 17 | 18 | 16 | 15 | 12 | 12 | 11 | 8 | 7 | 7 | 8 | 8 | 9 | 4 | 3 | |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 11 | WSW 11 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | SW 11 | SW 10 | SW 15 | WSW 10 | WSW 11 | SSW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 |
 kJ | 722 | 604 | 583 | 544 | 593 | 593 | 657 | 829 | 1010 | 1221 | 1096 | 1102 | 1186 | 1365 | 1334 | 9 | 418 | 415 | 599 | 1110 | 1164 | 1112 | 878 | 772 |
Swell 2 Height (m) Direction Period (s) | — | W 12 | S 9 | NW 12 | NW 12 | W 12 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | S 12 | S 12 | SSW 12 | SSW 11 | NW 11 | NW 11 | SW 15 | SSW 10 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 |
| kJ | — | 3 | 2 | 6 | 6 | 3 | 20 | 18 | 17 | 17 | 11 | 12 | 14 | 79 | 5 | 5 | 57 | 175 | 291 | 191 | 149 | 116 | 86 | 59 |
Swell 3 Height (m) Direction Period (s) | — | — | NW 12 | NW 12 | NW 12 | — | W 12 | W 12 | W 12 | W 11 | NW 11 | NW 11 | NW 11 | NW 11 | — | NW 11 | W 11 | SW 14 | SW 10 | — | — | — | — | — |
| kJ | — | — | 6 | 6 | 6 | — | 3 | 3 | 3 | 2 | 5 | 5 | 5 | 5 | — | 5 | 2 | 288 | 138 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 10 | S 8 | S 8 | S 8 | SSE 8 | SSE 8 | SSE 8 | SSE 8 | SSE 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1351 | 698 | 579 | 545 | 494 | 481 | 512 | 1025 | 976 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 17 | 17 | 0 | 6 | 0 | 1 | 1 | 1079 | 423 | 87 | 52 | 13 | 13 | 174 | 177 | 177 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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