Surf Forecasts:
How big are the waves at Thermopylae today (23 Jul):
- Afternoon surf: Afternoon surf (23 Jul, local time) - 7ft (2.1m), 12s period with SW swell.
- Evening surf: Evening surf (23 Jul, local time) - 6ft (1.9m), 12s period with SW swell.
The current surf forecast for Thermopylae at 12AM is: 1.6m 12s primary swell from a West-southwest direction and 1.0m 13s secondary swell from a South-southwest direction, 0.9m 4s secondary swell from a North-northwest direction (forecast issued at 07:00pm July 22). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Jul) | - | - |
| Afternoon (23 Jul) | 7ft (2.1m) | 12s |
| Evening (23 Jul) | 6ft (1.9m) | 12s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Thu afternoon. Very mild (max 19°C on Sat afternoon, min 11°C on Wed night). Winds decreasing (fresh winds from the N on Thu morning, calm by Fri morning). | |||||||||||||||||||
Wed 22 | Thursday 23 | Friday 24 | |||||||||||||||||
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 12 | SW 12 | WSW 12 | WSW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 1131 | 1129 | 843 | 756 | 694 | 1040 | 1132 | 954 | 1333 | 3790 | 9408 | 8427 | 7184 | 5305 | 4555 | 4119 | 3709 | 3186 | 2679 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross | cross | cross | cross | off | cross-off | cross-off | cross-off | cross-off | off | glassy | cross-on | cross | cross-off | cross-off |
High Tide | 9:56PM1.35m | 10:55AM1.20m | 11:15PM1.32m | 12:19PM1.24m | |||||||||||||||
Low Tide | 3:26PM0.79m | 4:45AM0.76m | 4:51PM0.84m | 6:00AM0.73m | 6:13PM0.82m | ||||||||||||||
 |  | | | |  |  | |  |  | |  | | | | | | | | |
 | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:45 | — | — | — | — | — | — |
 | 5:59 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — |
mm | — | — | — | — | — | — | 2 | 3 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 13 | 11 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 13 | 14 | 14 | 13 | 13 |
Feels °C | 10 | 10 | 9 | 6 | 6 | 7 | 8 | 11 | 12 | 10 | 10 | 11 | 10 | 10 | 12 | 12 | 12 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | WSW 12 | WSW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 12 | SW 12 | SW 17 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 |
| kJ | 1131 | 1129 | 843 | 756 | 694 | 1040 | 1132 | 954 | 1333 | 1824 | 9408 | 8427 | 7184 | 5305 | 4555 | 4119 | 3709 | 3186 | 2679 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | WSW 12 | SW 23 | WSW 12 | SW 19 | SW 18 | — | — | — | — | — | SE 12 | SE 12 | SE 12 | WSW 14 |
| kJ | 158 | 145 | 350 | 258 | 242 | 187 | 20 | 237 | 834 | 3790 | — | — | — | — | — | 6 | 5 | 5 | 1474 |
Swell 3 Height (m) Direction Period (s) | ESE 11 | ESE 11 | ESE 14 | ESE 13 | ESE 13 | ESE 13 | ESE 13 | NNW 5 | WSW 13 | WSW 13 | — | — | — | — | — | — | — | — | SE 12 |
| kJ | 12 | 12 | 18 | 18 | 17 | 17 | 17 | 36 | 154 | 135 | — | — | — | — | — | — | — | — | 5 |
Wind waves Height (m) Direction Period (s) | NNW 3 | NNW 4 | NNW 4 | NNW 4 | NNW 5 | NNW 5 | NW 5 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 10 | 25 | 23 | 54 | 88 | 92 | 79 | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 31 | 174 | 48 | 6 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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