Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (11 Aug):
- Morning surf: Morning surf (11 Aug, local time) - 0.5ft (0.2m), 6s period with SSW swell.
- Afternoon surf: Afternoon surf (11 Aug, local time) - 1ft (0.3m), 3s period with S swell.
- Evening surf: Evening surf (11 Aug, local time) - 0.5ft (0.1m), 11s period with S swell.
The current surf forecast for Trearddur Bay (Holy Island) at 1AM is: 0.2m 6s primary swell from a South-southwest direction (forecast issued at 06:00pm August 10). The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Aug) | 0.5ft (0.2m) | 6s |
| Afternoon (11 Aug) | 1ft (0.3m) | 3s |
| Evening (11 Aug) | 0.5ft (0.1m) | 11s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 24°C on Wed afternoon, min 15°C on Mon afternoon). Wind will be generally light. | |||||||||||||||||||
Mon 10 | Tuesday 11 | Wednesday 12 | |||||||||||||||||
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) | SW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | S 6 | S 3 | S 3 | S 11 | S 11 | SW 11 | SW 12 | SW 12 | SW 10 | SW 12 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 7 | 1 | 1 | 2 | 2 | 5 | 5 | 5 | 4 | 6 | 6 | 5 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | cross-off | cross-off | cross-on | on | on | cross-on | cross | cross | cross-on | cross-on | cross-on | on | cross-on | cross-off | cross-off |
High Tide | 9:30PM5.16m | 10:01AM5.19m | 10:21PM5.51m | 10:50AM5.42m | |||||||||||||||
Low Tide | 3:06PM1.52m | 3:41AM1.10m | 4:01PM1.21m | 4:33AM0.72m | 4:48PM0.94m | ||||||||||||||
 |  |  | |  |  | | | | |  | | | | | | | | | |
 | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — |
 | — | 8:57 | — | — | — | — | — | — | — | 8:54 | — | — | — | — | — | — | — | 8:52 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 15 | 16 | 17 | 18 | 20 | 21 | 21 | 20 | 20 | 20 | 20 | 20 | 22 | 24 | 24 | 23 |
Feels °C | 12 | 13 | 12 | 11 | 12 | 14 | 16 | 16 | 18 | 20 | 19 | 19 | 18 | 17 | 17 | 19 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | — | SW 6 | S 3 | SW 6 | — | SW 6 | SW 6 | SW 12 | S 6 | SSW 3 | — | SW 12 |
| kJ | 5 | 4 | 4 | 4 | 4 | 4 | 4 | — | 1 | 1 | 1 | — | 1 | 1 | 5 | 1 | 1 | — | 5 |
Swell 2 Height (m) Direction Period (s) | — | SW 7 | N 4 | — | — | — | — | — | — | SW 6 | — | SW 6 | SW 11 | SW 12 | S 6 | SW 10 | SW 12 | SW 12 | SW 5 |
| kJ | — | 2 | 1 | — | — | — | — | — | — | 1 | — | 1 | 5 | 5 | 1 | 4 | 6 | 6 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 11 | S 11 | W 11 | W 11 | W 10 | — | SW 6 | SW 6 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 2 | 2 | 2 | — | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | N 4 | N 4 | — | — | — | — | — | S 6 | S 3 | — | — | — | SSW 3 | SSW 3 | SSW 3 | SSW 3 | — | — | — |
| kJ | 3 | 3 | — | — | — | — | — | 7 | 1 | — | — | — | 1 | 1 | 2 | 1 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 285 | 246 | 246 | 246 | 280 | 280 | 286 | 297 | 306 | 285 | 275 | 163 | 163 | 161 | 161 | 161 | 186 | 285 | 178 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
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