Surf Forecasts:
How big are the waves at The Knap today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 1.5ft (0.4m), 6s period with W swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 1.5ft (0.5m), 6s period with W swell.
- Evening surf: Evening surf (18 Aug, local time) - 1.5ft (0.4m), 6s period with W swell.
The current surf forecast for The Knap at 10AM is: 0.5m 7s primary swell from a West direction (forecast issued at 06:00am August 18). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 1.5ft (0.4m) | 6s |
| Afternoon (18 Aug) | 1.5ft (0.5m) | 6s |
| Evening (18 Aug) | 1.5ft (0.4m) | 6s |
Table - waves today at The Knap. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Warm (max 20°C on Tue morning, min 11°C on Thu night). Winds decreasing (fresh winds from the W on Tue afternoon, light winds from the W by Tue night). | |||||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | |||||||||||||||||||||
4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 5 | W 6 | W 7 | W 7 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 6 | W 4 | W 5 | W 6 | W 6 | W 7 | W 7 | W 7 | W 7 | W 7 | W 9 | W 7 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 4 | 10 | 23 | 22 | 12 | 19 | 12 | 7 | 7 | 7 | 7 | 7 | 8 | 11 | 10 | 12 | 24 | 26 | 26 | 24 | 24 | 39 | 14 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | off |
High Tide | 11:10AM10.53m | 11:28PM10.38m | 11:48AM9.80m | 00:07AM9.51m | 12:30PM9.02m | ||||||||||||||||||
Low Tide | 4:54AM1.56m | 5:08PM1.91m | 5:29AM2.22m | 5:46PM2.63m | 6:09AM2.96m | 6:31PM3.39m | |||||||||||||||||
 |  |  | |  | | |  |  | |  | | | |  |  | | | | | | | | |
 | 6:01 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — |
 | — | — | — | — | — | 8:30 | — | — | — | — | — | — | — | 8:28 | — | — | — | — | — | — | — | 8:25 | — |
mm | — | 1 | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 19 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 17 | 19 | 18 | 17 | 15 | 15 | 15 | 14 | 17 | 18 | 18 | 19 | 15 |
Feels °C | 17 | 18 | 16 | 15 | 14 | 13 | 14 | 14 | 12 | 13 | 15 | 16 | 12 | 12 | 11 | 11 | 12 | 11 | 13 | 13 | 12 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 6 | W 6 | W 6 | W 6 | W 9 | — | — | W 9 | W 9 | W 7 | W 7 | W 7 | — | — | — | W 7 |
| kJ | — | — | — | — | — | — | — | 7 | 7 | 7 | 7 | 2 | — | — | 2 | 2 | 24 | 26 | 26 | — | — | — | 14 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 5 | W 6 | W 7 | W 7 | W 6 | W 6 | W 6 | — | — | — | — | W 6 | W 4 | W 5 | W 6 | W 6 | — | — | — | W 7 | W 7 | W 9 | — |
| kJ | 4 | 10 | 23 | 22 | 12 | 19 | 12 | — | — | — | — | 7 | 8 | 11 | 10 | 12 | — | — | — | 24 | 24 | 39 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 121 | 353 | 388 | 61 | 180 | 466 | 800 | 353 | 124 | 53 | 53 | 53 | 295 | 229 | 353 | 405 | 124 | 180 | 180 | 53 | 53 | 102 | 274 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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