Surf Forecasts:
How big are the waves at Thermopylae today (29 Aug):
- Morning surf: Morning surf (29 Aug, local time) - 4.5ft (1.3m), 14s period with WSW swell.
- Afternoon surf: Afternoon surf (29 Aug, local time) - 5ft (1.6m), 14s period with WSW swell.
- Evening surf: Evening surf (29 Aug, local time) - 4.5ft (1.4m), 14s period with WSW swell.
The current surf forecast for Thermopylae at 11AM is: 1.5m 14s primary swell from a West-southwest direction and 0.6m 11s secondary swell from a South direction (forecast issued at 07:00am August 29). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Aug) | 4.5ft (1.3m) | 14s |
| Afternoon (29 Aug) | 5ft (1.6m) | 14s |
| Evening (29 Aug) | 4.5ft (1.4m) | 14s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Sat morning, min 10°C on Mon morning). Mainly fresh winds. | |||||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||||||||
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) | WSW 13 | WSW 13 | WSW 14 | WSW 14 | SW 10 | WSW 14 | SW 9 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 12 | WSW 12 | SW 12 | SW 12 | WSW 11 | SW 11 | SW 11 | SW 11 | SW 12 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 468 | 468 | 930 | 1175 | 681 | 704 | 722 | 936 | 2310 | 2239 | 2073 | 1914 | 1852 | 1713 | 1259 | 1106 | 1302 | 1121 | 907 | 908 | 875 | 738 | 549 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off |
High Tide | 3:50AM1.71m | 4:05PM1.82m | 4:21AM1.72m | 4:35PM1.83m | 4:53AM1.70m | 5:08PM1.81m | |||||||||||||||||
Low Tide | 9:52AM0.30m | 10:15PM0.29m | 10:21AM0.30m | 10:47PM0.29m | 10:52AM0.33m | ||||||||||||||||||
 |  | | | |  |  | | |  | | | | | | | | | | | | | | |
 | 7:09 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — |
 | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:27 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 17 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 14 | 14 | 13 | 12 | 12 | 11 | 11 | 10 | 12 | 13 | 13 | 12 | 12 |
Feels °C | 13 | 14 | 16 | 10 | 11 | 9 | 10 | 9 | 6 | 7 | 8 | 9 | 7 | 6 | 7 | 7 | 7 | 7 | 8 | 9 | 9 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | SW 9 | SW 9 | SW 9 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 12 | WSW 12 | SW 12 | SW 12 | WSW 11 | SW 11 | SW 11 | SW 11 | SW 12 |
| kJ | 468 | 468 | 930 | 1175 | 659 | 645 | 631 | 542 | 2310 | 2239 | 2073 | 1914 | 1852 | 1713 | 1259 | 1106 | 1302 | 1121 | 907 | 908 | 875 | 738 | 549 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 12 | S 11 | S 11 | S 11 | WSW 14 | WSW 13 | WSW 13 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | — | — | — | SSE 10 | S 10 | S 10 | SE 11 | SE 11 | SE 10 | SSW 14 | WSW 11 |
| kJ | 72 | 137 | 88 | 61 | 61 | 704 | 722 | 936 | 23 | 23 | 11 | 11 | — | — | — | 10 | 2 | 2 | 5 | 4 | 4 | 74 | 313 |
Swell 3 Height (m) Direction Period (s) | WSW 17 | WSW 17 | SSE 13 | — | — | SSE 11 | SSE 11 | SSE 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 14 | SW 14 |
| kJ | 170 | 160 | 68 | — | — | 40 | 37 | 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | 71 | 186 |
Wind waves Height (m) Direction Period (s) | SSW 3 | SSW 3 | — | SW 4 | SW 10 | — | — | — | — | — | — | — | SSE 10 | SSE 10 | SSE 5 | SSE 5 | — | — | SSE 4 | — | — | SSE 3 | — |
| kJ | 3 | 4 | — | 36 | 681 | — | — | — | — | — | — | — | 10 | 10 | 78 | 59 | — | — | 14 | — | — | 3 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 182 | 325 | 8 | 8 | 63 | 63 | 47 | 13 | 344 | 344 | 99 | 1 | 1 | 8 | 0 | 8 | 10 | 10 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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