Surf Forecasts:
How big are the waves at The Knap today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 1.5ft (0.5m), 7s period with W swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 2ft (0.6m), 7s period with W swell.
- Evening surf: Evening surf (15 Sep, local time) - 1.5ft (0.5m), 7s period with W swell.
The current surf forecast for The Knap at 5AM is: 0.3m 6s primary swell from a West direction and 0.1m 8s secondary swell from a West direction (forecast issued at 12:00am September 15). The wind direction is predicted to be onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 1.5ft (0.5m) | 7s |
| Afternoon (15 Sep) | 2ft (0.6m) | 7s |
| Evening (15 Sep) | 1.5ft (0.5m) | 7s |
Table - waves today at The Knap. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Thu morning. Very mild (max 18°C on Mon night, min 13°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||||||||||
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 | 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 6 | W 6 | WSW 6 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 8 | W 9 | W 10 | W 10 | W 10 | W 10 | W 6 | W 10 | W 6 | W 6 | W 7 | W 7 | W 7 | W 7 | W 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 3 | 6 | 13 | 23 | 35 | 33 | 31 | 22 | 15 | 20 | 37 | 16 | 48 | 51 | 52 | 11 | 8 | 9 | 28 | 48 | 51 | 38 | 37 | 25 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross | cross | cross | cross | cross | cross-off | cross | cross-off | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross |
High Tide | 9:59AM11.29m | 10:15PM11.10m | 10:32AM10.69m | 10:48PM10.33m | 11:06AM9.94m | |||||||||||||||||||
Low Tide | 3:43AM0.96m | 3:57PM1.21m | 4:15AM1.47m | 4:31PM1.80m | 4:48AM2.14m | 5:06PM2.54m | ||||||||||||||||||
 | |  |  | | | |  | | |  |  | | | |  | | | |  | | | | | |
 | — | 6:47 | — | — | — | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:25 | — | — | — | — | — | — | — | 7:23 | — |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | — | — | — | — |
Temp °C | 18 | 17 | 16 | 17 | 17 | 17 | 16 | 16 | 14 | 13 | 13 | 14 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 15 | 15 |
Feels °C | 18 | 15 | 12 | 13 | 11 | 10 | 11 | 13 | 11 | 10 | 10 | 10 | 11 | 10 | 10 | 11 | 10 | 10 | 10 | 12 | 10 | 8 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | W 6 | W 6 | — | — | — | — | — | — | W 7 | — | W 9 | W 10 | — | — | — | W 10 | W 6 | W 10 | — | — | — | — | — | — |
| kJ | 3 | 6 | — | — | — | — | — | — | 15 | — | 37 | 16 | — | — | — | 8 | 6 | 2 | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | W 8 | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | — | — | — | — | — | — | — |
| kJ | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | WSW 6 | W 7 | W 7 | W 7 | W 7 | W 7 | — | W 8 | — | W 7 | W 10 | W 10 | W 10 | W 6 | — | W 6 | W 6 | W 7 | W 7 | W 7 | W 7 | W 7 |
| kJ | — | — | 13 | 23 | 35 | 33 | 31 | 22 | — | 20 | — | 14 | 48 | 51 | 52 | 11 | — | 9 | 28 | 48 | 51 | 38 | 37 | 25 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 202 | 153 | 180 | 353 | 398 | 353 | 886 | 53 | 53 | 135 | 53 | 61 | 135 | 129 | 171 | 301 | 301 | 301 | 301 | 420 | 612 | 612 | 353 | 102 |
Best forecast wave conditions in Wales - South East | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
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