Surf Forecasts:
How big are the waves at Thermopylae today (30 Sep):
- Afternoon surf: Afternoon surf (30 Sep, local time) - 3.5ft (1.1m), 13s period with SW swell.
- Evening surf: Evening surf (30 Sep, local time) - 3.5ft (1.0m), 13s period with SW swell.
The current surf forecast for Thermopylae at 11PM is: 1.0m 13s primary swell from a Southwest direction and 0.6m 6s secondary swell from a South-southeast direction (forecast issued at 07:00pm September 30). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Sep) | - | - |
| Afternoon (30 Sep) | 3.5ft (1.1m) | 13s |
| Evening (30 Sep) | 3.5ft (1.0m) | 13s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Wed night, min 14°C on Fri night). Winds increasing (calm on Fri morning, strong winds from the SSE by Sat morning). | |||||||||||||||||||
Wed 30 | Thursday 1 | Friday 2 | |||||||||||||||||
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 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | WSW 11 | WSW 12 | WSW 9 | WSW 11 | WSW 11 | WSW 10 | W 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 386 | 342 | 336 | 282 | 241 | 227 | 216 | 172 | 144 | 142 | 137 | 133 | 74 | 77 | 172 | 838 | 1165 | 809 | 495 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | off | cross-off | cross-off | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | glassy | cross | cross | cross-off | cross-off | cross-off |
High Tide | 5:23PM1.74m | 5:51AM1.58m | 6:08PM1.60m | 6:44AM1.46m | 7:07PM1.44m | ||||||||||||||
Low Tide | 11:37PM0.40m | 11:49AM0.53m | 00:25AM0.53m | 12:46PM0.67m | |||||||||||||||
 |  | | |  |  | | | | | | |  |  | | | | | | |
 | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — |
 | 6:47 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:49 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 31 | 29 | 28 | 27 | 16 | 15 | 22 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 14 | 14 |
Feels °C | 29 | 26 | 26 | 24 | 12 | 12 | 18 | 12 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 13 | 11 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | NW 6 | SW 12 | SW 11 | W 6 | W 6 | WSW 9 | WSW 11 | WSW 11 | WSW 10 | W 10 |
| kJ | 386 | 342 | 336 | 282 | 241 | 227 | 216 | 172 | 144 | 72 | 137 | 133 | 36 | 56 | 172 | 838 | 1165 | 809 | 495 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 6 | SSE 6 | SE 10 | SE 12 | SE 11 | SE 11 | SSE 11 | SW 12 | SE 11 | W 6 | WSW 11 | WSW 12 | WSW 12 | SE 10 | W 13 | W 11 | SW 10 |
| kJ | 25 | 39 | 22 | 14 | 28 | 34 | 33 | 19 | 12 | 142 | 5 | 36 | 74 | 77 | 125 | 4 | 3 | 191 | 384 |
Swell 3 Height (m) Direction Period (s) | — | — | SSE 10 | SSE 10 | SE 12 | — | — | — | W 15 | SSE 11 | W 15 | SE 11 | SW 11 | SW 11 | NW 6 | — | W 13 | NW 13 | SW 13 |
| kJ | — | — | 10 | 10 | 23 | — | — | — | 4 | 12 | 4 | 5 | 45 | 43 | 11 | — | 3 | 7 | 45 |
Wind waves Height (m) Direction Period (s) | SE 8 | SE 10 | — | NNE 3 | NNW 4 | NNW 4 | NNW 5 | NW 5 | NW 6 | — | WNW 6 | NNW 5 | NNW 5 | — | — | — | SSE 3 | S 4 | S 5 |
| kJ | 95 | 217 | — | 3 | 19 | 29 | 52 | 96 | 101 | — | 53 | 19 | 19 | — | — | — | 2 | 19 | 63 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 6 | 83 | 31 | 74 | 277 | 17 | 6 | 17 | 11 | 11 | 0 | 1 | 27 | 63 | 63 | 63 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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