Surf Forecasts:
How big are the waves at Thermopylae today (12 Jul):
- Morning surf: Morning surf (12 Jul, local time) - 6ft (1.8m), 11s period with S swell.
- Afternoon surf: Afternoon surf (12 Jul, local time) - 4ft (1.2m), 11s period with SSW swell.
- Evening surf: Evening surf (12 Jul, local time) - 4.5ft (1.4m), 10s period with S swell.
The current surf forecast for Thermopylae at 1AM is: 2.0m 12s primary swell from a South direction and 0.8m 12s secondary swell from a West direction, 1.7m 7s secondary swell from a Southeast direction (forecast issued at 07:00pm July 11). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Jul) | 6ft (1.8m) | 11s |
| Afternoon (12 Jul) | 4ft (1.2m) | 11s |
| Evening (12 Jul) | 4.5ft (1.4m) | 10s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 18°C on Sun afternoon, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | S 12 | SSW 11 | S 12 | S 11 | S 11 | S 11 | SSW 11 | SSW 11 | SSW 11 | S 10 | SSW 10 | S 10 | S 10 | S 10 | SSW 10 | S 10 | SSW 10 | SSW 9 | W 12 | W 12 | W 11 | W 11 | W 10 | SW 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1013 | 524 | 1098 | 943 | 882 | 771 | 394 | 334 | 302 | 410 | 237 | 290 | 245 | 240 | 125 | 192 | 150 | 147 | 177 | 216 | 188 | 184 | 162 | 156 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | off | off | glassy | cross | glassy | glassy | glassy | glassy | glassy | glassy | cross-on | glassy | glassy | glassy | glassy | cross-off | cross | cross-on | cross-on |
High Tide | 1:10AM1.64m | 1:53PM1.59m | 2:08AM1.70m | 2:44PM1.70m | 2:59AM1.75m | |||||||||||||||||||
Low Tide | 6:57PM0.57m | 7:38AM0.40m | 7:58PM0.48m | 8:30AM0.32m | 8:53PM0.40m | 9:17AM0.27m | ||||||||||||||||||
 |  | | | | |  | |  | | | | | | | | |  | | | | | | | |
 | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:48 | — | — | — |
 | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | 5:53 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 16 | 15 | 14 | 14 | 14 | 15 | 17 | 18 | 17 | 17 | 16 | 15 | 15 | 16 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 15 | 16 |
Feels °C | 16 | 14 | 13 | 12 | 12 | 12 | 13 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 13 | 12 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | S 12 | SSW 11 | S 12 | S 11 | S 11 | S 11 | SSW 11 | SSW 11 | SSW 11 | S 10 | SSW 10 | S 10 | S 10 | S 10 | SSW 10 | S 10 | SSW 10 | SSW 9 | S 9 | W 12 | W 11 | W 11 | W 10 | W 10 |
| kJ | 1013 | 524 | 1098 | 943 | 882 | 771 | 394 | 334 | 302 | 410 | 237 | 290 | 245 | 240 | 125 | 192 | 150 | 147 | 110 | 216 | 188 | 184 | 162 | 156 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | W 12 | W 11 | W 11 | W 11 | SSE 8 | SSE 8 | SSE 8 | W 10 | SSE 7 | W 10 | W 10 | W 10 | SSE 9 | W 9 | W 9 | W 12 | W 12 | SSW 9 | SSW 9 | S 9 | S 9 | SW 16 |
| kJ | 240 | 212 | 175 | 163 | 152 | 114 | 146 | 119 | 92 | 75 | 61 | 69 | 69 | 68 | 61 | 41 | 40 | 67 | 177 | 58 | 49 | 41 | 43 | 153 |
Swell 3 Height (m) Direction Period (s) | W 11 | W 12 | SW 18 | SW 17 | WSW 16 | SW 16 | W 11 | W 11 | W 11 | SW 15 | W 10 | SW 15 | SW 15 | SW 14 | W 10 | SW 14 | WSW 13 | W 9 | SW 13 | S 9 | S 9 | SSW 9 | SW 13 | S 9 |
| kJ | 163 | 178 | 12 | 12 | 26 | 41 | 114 | 112 | 110 | 34 | 71 | 33 | 33 | 33 | 46 | 32 | 55 | 39 | 45 | 38 | 38 | 34 | 59 | 41 |
Wind waves Height (m) Direction Period (s) | SE 6 | SSE 7 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | SE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 230 | 199 | 312 | 305 | 322 | 392 | 321 | 229 | 186 | 193 | 167 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 6 | 17 | 17 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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