Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (12 Nov):
- Afternoon surf: Afternoon surf (12 Nov, local time) - 1.5ft (0.5m), 10s period with SW swell.
- Evening surf: Evening surf (12 Nov, local time) - 1.5ft (0.5m), 10s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 9PM is: 0.5m 10s primary swell from a Southwest direction and 0.4m 10s secondary swell from a Southwest direction (forecast issued at 05:00pm November 12). An open ocean swell of 1.1m 6s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Nov) | - | - |
| Afternoon (12 Nov) | 1.5ft (0.5m) | 10s |
| Evening (12 Nov) | 1.5ft (0.5m) | 10s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Sat night. Very mild (max 12°C on Sat night, min 8°C on Thu afternoon). Winds increasing (light winds from the NNW on Fri morning, near gales from the S by Sat night). | ||||||||||||||||||||||
Thu 12 | Friday 13 | Saturday 14 | Sun 15 | |||||||||||||||||||
3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SSW 10 | SW 10 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 9 | SW 8 | SSW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 8 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 49 | 48 | 48 | 38 | 24 | 23 | 21 | 21 | 21 | 20 | 12 | 11 | 16 | 37 | 61 | 138 | 223 | 331 | 458 | 555 | 704 | 945 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 00:01AM5.09m | 12:16PM5.30m | 00:38AM4.90m | 12:54PM5.13m | 1:21AM4.68m | |||||||||||||||||
Low Tide | 5:51PM1.41m | 6:05AM1.61m | 6:29PM1.59m | 6:42AM1.85m | 7:10PM1.79m | |||||||||||||||||
 |  | | | |  |  | |  | | | |  | | | | | | |  | |  | |
 | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:41 |
 | 4:27 | — | — | — | — | — | — | — | 4:25 | — | — | — | — | — | — | — | 4:23 | — | — | — | — | 4:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 8 |
Temp °C | 9 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 9 | 11 | 11 | 10 | 9 | 10 | 12 |
Feels °C | 1 | 1 | 2 | 2 | 3 | 4 | 5 | 5 | 5 | 5 | 4 | 4 | 2 | 2 | 1 | -1 | 2 | 1 | -1 | -2 | -1 | 3 |
Swell 1 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SSW 10 | SW 10 | SW 9 | SW 9 | N 4 | SW 9 | NW 4 | SW 9 | SW 8 | — | — | — | W 13 | — | SW 11 | WSW 11 | — | — | — |
| kJ | 49 | 48 | 48 | 38 | 24 | 23 | 21 | 9 | 21 | 3 | 12 | 11 | — | — | — | 3 | — | 20 | 12 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | SW 10 | SW 10 | SW 10 | NW 5 | NW 5 | SW 9 | — | SW 9 | SW 14 | NNW 4 | — | WSW 13 | — | — | — | — | — | — | — | — |
| kJ | — | — | 25 | 25 | 24 | 7 | 3 | 21 | — | 20 | 8 | 1 | — | 17 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 16 | SW 16 | SW 14 | SW 14 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 10 | 10 | 8 | 8 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 6 | N 6 | N 6 | NNW 6 | NNW 5 | N 5 | N 4 | — | NNW 4 | WNW 3 | NW 4 | WSW 3 | SSW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 8 |
| kJ | 114 | 91 | 77 | 50 | 28 | 17 | 13 | — | 6 | 1 | 3 | 3 | 16 | 37 | 61 | 138 | 223 | 331 | 458 | 555 | 704 | 945 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 192 | 182 | 0 | 8 | 163 | 163 | 163 | 163 | 187 | 179 | 179 | 235 | 186 | 186 | 186 | 253 | 253 | 319 | 307 | 253 | 246 | 246 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||
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