Surf Forecasts:
How big are the waves at Thermopylae today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 5ft (1.5m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 4.5ft (1.3m), 12s period with SW swell.
- Evening surf: Evening surf (19 Sep, local time) - 6ft (1.9m), 14s period with SW swell.
The current surf forecast for Thermopylae at 6AM is: 1.6m 12s primary swell from a Southwest direction and 0.5m 16s secondary swell from a Southwest direction, 1.0m 6s secondary swell from a South-southeast direction (forecast issued at 01:00am September 19). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 5ft (1.5m) | 12s |
| Afternoon (19 Sep) | 4.5ft (1.3m) | 12s |
| Evening (19 Sep) | 6ft (1.9m) | 14s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Mon afternoon, min 14°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | SW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 736 | 712 | 700 | 448 | 448 | 1063 | 1423 | 1527 | 1591 | 1474 | 1367 | 1110 | 1094 | 904 | 822 | 702 | 563 | 545 | 472 | 472 | 371 | 347 | 329 | 314 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | off |
High Tide | 8:50AM1.17m | 9:28PM1.15m | 11:21AM1.20m | 11:45PM1.20m | 12:29PM1.32m | |||||||||||||||||||
Low Tide | 2:06AM0.84m | 3:12PM0.95m | 4:29AM0.87m | 5:44PM0.89m | 6:01AM0.79m | 6:43PM0.77m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | | | | | | | | | | |
 | — | 6:41 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 14 | 18 | 20 | 20 | 19 | 17 | 17 | 17 | 18 | 23 | 25 | 23 | 21 | 20 | 19 | 18 | 19 | 24 | 27 | 27 | 26 | 25 |
Feels °C | 11 | 10 | 12 | 16 | 17 | 17 | 16 | 14 | 15 | 15 | 16 | 22 | 23 | 21 | 20 | 19 | 18 | 17 | 18 | 24 | 26 | 26 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | SW 11 |
| kJ | 736 | 712 | 700 | 448 | 448 | 1063 | 1423 | 1527 | 1591 | 1474 | 1367 | 1110 | 1094 | 904 | 822 | 702 | 563 | 545 | 472 | 472 | 371 | 347 | 329 | 314 |
Swell 2 Height (m) Direction Period (s) | SW 16 | SW 16 | — | SW 14 | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SW 14 |
| kJ | 91 | 127 | — | 301 | 350 | — | — | — | — | — | — | — | — | — | — | — | — | — | 68 | 55 | 45 | 35 | 36 | 167 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 15 | SSW 15 | SSW 15 | SSE 6 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 58 | 87 | 142 | 27 |
Wind waves Height (m) Direction Period (s) | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | — |
| kJ | 120 | 76 | 77 | 60 | 107 | 196 | 279 | 209 | 145 | 118 | 99 | 77 | 64 | 127 | 164 | 145 | 131 | 91 | 177 | 136 | 109 | 85 | 88 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 174 | 1 | 1 | 0 | 0 | 0 | 0 | 8 | 232 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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