Surf Forecasts:
How big are the waves at Thermopylae today (23 Sep):
- Morning surf: Morning surf (23 Sep, local time) - 3.5ft (1.1m), 11s period with SW swell.
- Afternoon surf: Afternoon surf (23 Sep, local time) - 3.5ft (1.0m), 11s period with SW swell.
- Evening surf: Evening surf (23 Sep, local time) - 3ft (0.9m), 10s period with SW swell.
The current surf forecast for Thermopylae at 11AM is: 1.1m 11s primary swell from a Southwest direction and 0.2m 12s secondary swell from a South direction (forecast issued at 07:00am September 23). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Sep) | 3.5ft (1.1m) | 11s |
| Afternoon (23 Sep) | 3.5ft (1.0m) | 11s |
| Evening (23 Sep) | 3ft (0.9m) | 10s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Warm (max 24°C on Fri afternoon, min 15°C on Wed morning). Wind will be generally light. | |||||||||||||||||||||||
Wednesday 23 | Thursday 24 | Friday 25 | |||||||||||||||||||||
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 |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SSE 7 | S 7 | SSW 16 | SSW 16 | SSW 15 | SW 14 | SW 13 | SW 13 | SSW 13 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 332 | 287 | 254 | 216 | 216 | 180 | 122 | 237 | 113 | 295 | 706 | 1038 | 1267 | 1144 | 1094 | 1126 | 964 | 933 | 822 | 769 | 614 | 604 | 614 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | glassy | cross | cross | cross-off | off | glassy | glassy | glassy | glassy | cross-on | cross | glassy | glassy | glassy | cross-on | cross-off | cross-on | glassy | off | cross-off | cross-off |
High Tide | 1:37PM1.57m | 1:53AM1.54m | 2:06PM1.68m | 2:22AM1.64m | 2:34PM1.78m | ||||||||||||||||||
Low Tide | 7:23AM0.57m | 7:48PM0.51m | 7:54AM0.47m | 8:17PM0.40m | 8:23AM0.39m | 8:46PM0.30m | |||||||||||||||||
 |  | |  | | |  | | | | | | | | | | | | | | | | | |
 | 6:35 | — | — | — | — | — | — | — | 6:33 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — |
 | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:44 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 16 | 17 | 18 | 17 | 18 | 18 | 17 | 17 | 19 | 19 | 20 | 20 | 21 | 19 | 18 | 17 | 18 | 24 | 23 | 20 | 19 |
Feels °C | 13 | 16 | 17 | 16 | 18 | 17 | 19 | 20 | 18 | 18 | 21 | 19 | 20 | 22 | 23 | 21 | 19 | 16 | 17 | 25 | 21 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 10 | S 6 | S 7 | S 7 | SSE 7 | SSW 16 | SSW 15 | SW 14 | SW 13 | SW 13 | SSW 13 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 12 | SW 12 |
| kJ | 332 | 287 | 254 | 216 | 216 | 180 | 66 | 126 | 94 | 79 | 706 | 1038 | 1267 | 1144 | 1094 | 1126 | 964 | 933 | 822 | 769 | 614 | 604 | 614 |
Swell 2 Height (m) Direction Period (s) | S 13 | S 12 | S 12 | W 9 | S 11 | S 11 | SW 10 | SW 10 | SW 10 | SSW 16 | S 7 | S 7 | S 7 | S 7 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | W 16 | SE 7 | SE 7 | SW 18 | SW 18 |
| kJ | 13 | 12 | 11 | 6 | 10 | 9 | 122 | 117 | 100 | 295 | 59 | 59 | 44 | 43 | 34 | 56 | 37 | 27 | 5 | 16 | 12 | 111 | 82 |
Swell 3 Height (m) Direction Period (s) | S 13 | SSE 12 | SW 15 | S 12 | NW 5 | NW 4 | SW 14 | SSW 18 | SSW 17 | SW 10 | SW 10 | WSW 10 | — | — | — | — | W 16 | W 16 | — | W 16 | SW 19 | — | SSW 16 |
| kJ | 13 | 15 | 9 | 11 | 1 | 1 | 7 | 30 | 113 | 100 | 108 | 80 | — | — | — | — | 5 | 5 | — | 5 | 15 | — | 25 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SSE 4 | SE 6 | SSE 7 | — | — | — | — | — | — | — | — | — | — | — | — | SSE 3 | — | SSE 3 |
| kJ | — | — | — | — | — | 13 | 36 | 237 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 11 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 17 | 0 | 17 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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