Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (17 Oct):
- Morning surf: Morning surf (17 Oct, local time) - 0.5ft (0.1m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (17 Oct, local time) - 0.5ft (0.1m), 11s period with SW swell.
- Evening surf: Evening surf (17 Oct, local time) - 0.5ft (0.1m), 6s period with SW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 1AM is: 0.3m 6s primary swell from a Southwest direction and 0.1m 12s secondary swell from a Southwest direction (forecast issued at 06:00pm October 16). An open ocean swell of 1.3m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Oct) | 0.5ft (0.1m) | 12s |
| Afternoon (17 Oct) | 0.5ft (0.1m) | 11s |
| Evening (17 Oct) | 0.5ft (0.1m) | 6s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 12°C on Fri afternoon, min 9°C on Sat night). Winds decreasing (fresh winds from the NNW on Fri night, light winds from the ENE by Sat night). | |||||||||||||||||||
Fri 16 | Saturday 17 | Sunday 18 | |||||||||||||||||
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) | NW 5 | SW 7 | SW 6 | SW 6 | SSW 6 | SSW 6 | SW 12 | SW 12 | SW 11 | SW 6 | S 11 | SW 6 | SW 6 | — | — | — | — | — | NNE 2 |
Wave Graph  | |||||||||||||||||||
 kJ | 49 | 11 | 11 | 6 | 6 | 5 | 5 | 5 | 5 | 2 | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | off |
High Tide | 2:15PM4.98m | 2:40AM4.61m | 3:02PM4.74m | 3:36AM4.32m | 4:02PM4.51m | ||||||||||||||
Low Tide | 8:30PM1.88m | 8:48AM2.18m | 9:22PM2.17m | 9:43AM2.49m | |||||||||||||||
 |  | | | | | |  | | | | | | | | | | | | |
 | — | — | — | — | — | 7:47 | — | — | — | — | — | — | — | 7:48 | — | — | — | — | — |
 | 6:21 | — | — | — | — | — | — | — | 6:19 | — | — | — | — | — | — | — | 6:16 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 10 | 11 | 11 | 11 |
Feels °C | 5 | 5 | 5 | 5 | 5 | 7 | 7 | 7 | 6 | 6 | 7 | 8 | 7 | 6 | 7 | 8 | 7 | 7 | 7 |
Swell 1 Height (m) Direction Period (s) | SW 7 | SW 7 | SW 6 | SW 6 | SSW 6 | SSW 6 | NNW 5 | N 5 | NNW 4 | NNW 4 | N 4 | N 3 | — | — | — | — | — | — | — |
| kJ | 12 | 11 | 11 | 6 | 4 | 4 | 33 | 15 | 6 | 3 | 1 | 1 | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | SW 6 | — | — | — | — | — | — |
| kJ | 6 | 6 | 6 | 6 | 6 | 5 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 12 | SW 12 | SW 11 | — | S 11 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 5 | 5 | 5 | — | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 5 | NW 5 | NNW 5 | NNW 6 | NNW 6 | N 5 | — | — | NE 2 | ENE 2 | — | — | — | — | — | — | — | — | NNE 2 |
| kJ | 49 | 70 | 102 | 109 | 94 | 59 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 361 | 174 | 179 | 179 | 82 | 179 | 179 | 163 | 178 | 163 | 161 | 163 | 163 | 179 | 179 | 246 | 246 | 246 | 235 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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