Surf Forecasts:
How big are the waves at Thermopylae today (20 Jun):
- Afternoon surf: Afternoon surf (20 Jun, local time) - 4.5ft (1.4m), 12s period with SW swell.
- Evening surf: Evening surf (20 Jun, local time) - 4ft (1.2m), 11s period with WSW swell.
The current surf forecast for Thermopylae at 10PM is: 1.2m 11s primary swell from a West-southwest direction and 0.7m 15s secondary swell from a Southwest direction (forecast issued at 07:00pm June 20). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jun) | - | - |
| Afternoon (20 Jun) | 4.5ft (1.4m) | 12s |
| Evening (20 Jun) | 4ft (1.2m) | 11s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Sun night. Warm (max 22°C on Sat night, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 20 | Sunday 21 | Monday 22 | Tue 23 | |||||||||||||||||||||
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) | SW 11 | WSW 11 | WSW 11 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 510 | 335 | 329 | 479 | 676 | 1167 | 1273 | 1378 | 1367 | 1347 | 1327 | 1308 | 1269 | 1180 | 859 | 996 | 996 | 1026 | 1059 | 1042 | 880 | 869 | 486 | 688 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | off | cross-off | glassy | cross | glassy | glassy | glassy | glassy | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on |
High Tide | 7:51PM1.59m | 8:18AM1.36m | 8:50PM1.52m | 9:26AM1.29m | 9:55PM1.47m | 10:39AM1.27m | ||||||||||||||||||
Low Tide | 2:24AM0.62m | 2:25PM0.64m | 3:32AM0.66m | 3:30PM0.71m | 4:40AM0.68m | |||||||||||||||||||
 |  | | | | | |  | |  |  | | | | | | | | | |  |  | | | |
 | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:50 | — | — | — |
 | 5:44 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | 5:45 |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | — |
Temp °C | 24 | 22 | 21 | 21 | 21 | 20 | 19 | 19 | 19 | 19 | 18 | 19 | 19 | 18 | 17 | 17 | 16 | 15 | 14 | 14 | 14 | 14 | 15 | 16 |
Feels °C | 21 | 19 | 18 | 19 | 19 | 19 | 18 | 19 | 19 | 19 | 18 | 19 | 18 | 17 | 15 | 16 | 15 | 14 | 12 | 11 | 10 | 10 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 11 | WSW 11 | WSW 11 | SW 11 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 |
| kJ | 510 | 335 | 329 | 332 | 676 | 1167 | 1273 | 1378 | 1367 | 1347 | 1327 | 1308 | 1269 | 1180 | 859 | 996 | 996 | 1026 | 1059 | 1042 | 880 | 869 | 486 | 688 |
Swell 2 Height (m) Direction Period (s) | SW 16 | S 9 | SW 15 | SW 15 | SW 11 | S 8 | SSE 8 | — | NW 4 | NNW 4 | SSE 8 | SSE 8 | SW 15 | SE 8 | W 12 | W 12 | — | S 15 | S 15 | S 15 | SW 16 | SW 15 | SW 14 | WSW 23 |
| kJ | 86 | 53 | 215 | 479 | 254 | 33 | 21 | — | 4 | 3 | 6 | 6 | 415 | 3 | 294 | 106 | — | 18 | 17 | 17 | 248 | 318 | 346 | 52 |
Swell 3 Height (m) Direction Period (s) | — | SW 15 | S 9 | — | — | — | — | — | — | SSE 8 | — | — | SE 8 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 137 | 56 | — | — | — | — | — | — | 11 | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 4 | — | — | — | — | — | — | — | NNW 3 | NW 3 | NW 4 | NNW 4 | NNW 4 | NNW 4 | NW 5 | WNW 6 | WNW 6 |
| kJ | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | 6 | 5 | 6 | 18 | 35 | 37 | 65 | 122 | 195 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 11 | 11 | 17 | 17 | 6 | 11 | 31 | 31 | 17 | 24 | 283 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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