Surf Forecasts:
How big are the waves at The Knap today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 0.5ft (0.2m), 7s period with W swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 0.5ft (0.2m), 7s period with W swell.
- Evening surf: Evening surf (21 Sep, local time) - 0.5ft (0.1m), 7s period with W swell.
The current surf forecast for The Knap at 2PM is: 0.2m 7s primary swell from a West direction (forecast issued at 06:00am September 21). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 0.5ft (0.2m) | 7s |
| Afternoon (21 Sep) | 0.5ft (0.2m) | 7s |
| Evening (21 Sep) | 0.5ft (0.1m) | 7s |
Table - waves today at The Knap. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 20°C on Tue morning, min 10°C on Wed night). Wind will be generally light. | |||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||||||
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 9 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 8 | W 9 | W 12 | W 11 | W 11 | W 11 | W 11 | W 10 | W 14 | W 14 | W 13 | W 13 | W 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 6 | 4 | 4 | 4 | 4 | 4 | 1 | 1 | 1 | 1 | 5 | 6 | 11 | 10 | 10 | 21 | 20 | 19 | 16 | 15 | 13 | 30 | 29 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross | cross-off | cross-off | cross-off | off |
High Tide | 2:54AM7.40m | 3:46PM7.73m | 4:35AM7.79m | 5:04PM8.36m | 5:34AM8.55m | 5:53PM9.20m | |||||||||||||||||
Low Tide | 9:03AM4.74m | 10:07PM4.49m | 10:42AM4.31m | 11:22PM3.80m | 11:42AM3.54m | ||||||||||||||||||
 |  |  | | | |  | | | | |  | | | |  | | | | | | | | |
 | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:09 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 16 | 18 | 19 | 19 | 18 | 18 | 17 | 17 | 17 | 20 | 20 | 20 | 19 | 19 | 18 | 18 | 17 | 18 | 17 | 15 | 13 |
Feels °C | 13 | 14 | 16 | 17 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 21 | 20 | 19 | 19 | 19 | 17 | 17 | 15 | 16 | 12 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | W 9 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 7 | W 8 | W 9 | W 12 | W 11 | W 11 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 13 | W 13 |
| kJ | 6 | 4 | 4 | 4 | 4 | 4 | 1 | 1 | 1 | 1 | 5 | 6 | 11 | 10 | 10 | 21 | 20 | 19 | 7 | 6 | 6 | 30 | 29 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 17 | W 17 | W 15 | W 14 | W 14 | W 14 | W 13 | — | NW 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | 18 | 16 | 16 | 15 | 13 | — | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 15 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 65 | 72 | 65 | 201 | 207 | 204 | 105 | 105 | 105 | 105 | 75 | 131 | 53 | 28 | 28 | 28 | 53 | 39 | 61 | 8 | 135 | 132 | 14 |
Best forecast wave conditions in Wales - South East | |||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||||
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