Surf Forecasts:
How big are the waves at Thermopylae today (31 Oct):
- Morning surf: Morning surf (31 Oct, local time) - 5.5ft (1.7m), 11s period with WSW swell.
- Afternoon surf: Afternoon surf (31 Oct, local time) - 5.5ft (1.7m), 11s period with WSW swell.
- Evening surf: Evening surf (31 Oct, local time) - 4ft (1.2m), 14s period with SW swell.
The current surf forecast for Thermopylae at 1AM is: 1.8m 12s primary swell from a West-southwest direction and 0.6m 11s secondary swell from a South-southwest direction (forecast issued at 07:00pm October 30). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Oct) | 5.5ft (1.7m) | 11s |
| Afternoon (31 Oct) | 5.5ft (1.7m) | 11s |
| Evening (31 Oct) | 4ft (1.2m) | 14s |
Table - waves today at Thermopylae. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 19°C on Sat morning, min 15°C on Sun night). Mainly fresh winds. | |||||||||||||||||||
Fri 30 | Saturday 31 | Sunday 1 | |||||||||||||||||
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 11 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | SW 14 | SW 13 | WSW 13 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 777 | 918 | 887 | 887 | 828 | 729 | 799 | 716 | 603 | 532 | 1042 | 1543 | 1998 | 1858 | 1697 | 1583 | 1545 | 1060 | 1229 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross | cross | cross-off | cross-off |
High Tide | 6:03PM1.57m | 6:44AM1.52m | 7:08PM1.42m | 7:59AM1.44m | 8:38PM1.31m | ||||||||||||||
Low Tide | 00:19AM0.54m | 12:58PM0.68m | 1:30AM0.66m | 2:38PM0.75m | |||||||||||||||
 |  | |  | |  | | | |  | | | |  | | | | | | |
 | — | — | — | — | 5:47 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — |
 | 7:12 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 18 | 17 | 17 | 17 | 17 | 19 | 19 | 18 | 16 | 16 | 16 | 16 | 16 | 17 | 18 | 18 | 16 | 16 |
Feels °C | 16 | 15 | 15 | 16 | 16 | 15 | 17 | 16 | 15 | 13 | 14 | 13 | 14 | 13 | 13 | 13 | 13 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | WSW 11 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | W 12 | SW 13 | WSW 13 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 |
| kJ | 777 | 918 | 887 | 887 | 828 | 729 | 799 | 716 | 603 | 472 | 1042 | 1543 | 1998 | 1858 | 1697 | 1583 | 1545 | 1060 | 1229 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | W 11 | SSW 10 | SW 14 | SW 14 | W 12 | W 12 | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | W 11 |
| kJ | 149 | 137 | 87 | 82 | 79 | 76 | 2 | 67 | 218 | 532 | 350 | 105 | 72 | 102 | 71 | 71 | 60 | 38 | 37 |
Swell 3 Height (m) Direction Period (s) | NW 12 | ESE 9 | W 11 | W 11 | W 11 | W 11 | NW 11 | W 11 | SSW 10 | SSW 10 | — | SE 9 | SE 9 | SE 9 | SE 9 | — | — | — | — |
| kJ | 6 | 8 | 2 | 2 | 2 | 2 | 5 | 2 | 65 | 65 | — | 3 | 3 | 3 | 3 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | SSE 4 | SSE 4 | SSE 4 | SSE 4 | SSE 4 | S 4 | S 5 | S 5 | S 5 | S 5 | S 5 | S 5 | SSE 5 | — | SE 5 | — | S 5 | SE 4 |
| kJ | 33 | 31 | 29 | 29 | 22 | 25 | 30 | 37 | 78 | 71 | 54 | 40 | 33 | 26 | — | 9 | — | 52 | 17 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 344 | 63 | 63 | 8 | 6 | 47 | 115 | 344 | 344 | 27 | 27 | 27 | 8 | 27 | 27 | 27 | 63 | 63 | 53 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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