Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (28 Aug):
- Afternoon surf: Afternoon surf (28 Aug, local time) - 1.5ft (0.5m), 6s period with SW swell.
- Evening surf: Evening surf (28 Aug, local time) - 1.5ft (0.5m), 6s period with SSW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 10PM is: 0.5m 6s primary swell from a South-southwest direction and 0.4m 4s secondary swell from a South-southwest direction (forecast issued at 06:00pm August 28). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Aug) | - | - |
| Afternoon (28 Aug) | 1.5ft (0.5m) | 6s |
| Evening (28 Aug) | 1.5ft (0.5m) | 6s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Sat morning. Very mild (max 17°C on Fri afternoon, min 14°C on Sun night). Winds increasing (calm on Sat night, fresh winds from the WNW by Mon morning). | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | |||||||||||||||||
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 | SSW 6 | SSW 6 | SSW 6 | SSW 8 | SSW 9 | SW 9 | SW 9 | SSW 9 | SSW 4 | SSW 5 | SSW 5 | SSW 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 20 | 34 | 22 | 46 | 43 | 66 | 60 | 44 | 25 | 34 | 80 | 157 | 118 | 81 | 49 | 34 | 46 | 80 | 85 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | cross-on | cross-on | off | cross-off | cross-off | glassy | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on |
High Tide | 11:36PM5.65m | 11:57AM5.33m | 00:07AM5.72m | 12:28PM5.40m | |||||||||||||||
Low Tide | 5:23PM1.07m | 5:44AM0.80m | 5:55PM0.94m | 6:16AM0.70m | 6:28PM0.87m | ||||||||||||||
 |  |  | |  |  |  | | | | |  | | | | | | |  | |
 | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — |
 | — | 8:17 | — | — | — | — | — | — | — | 8:15 | — | — | — | — | — | — | — | 8:13 | — |
mm | — | — | — | — | — | — | 2 | 4 | — | — | — | — | — | — | — | 2 | 1 | — | 1 |
Temp °C | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 15 | 16 | 16 | 16 |
Feels °C | 15 | 14 | 15 | 16 | 13 | 15 | 15 | 15 | 14 | 15 | 16 | 15 | 14 | 14 | 13 | 11 | 11 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | N 3 | N 3 | SSW 6 | — | S 11 | — | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 8 | SSW 9 | SW 9 | SW 9 | SSW 9 | — | SW 8 | — | — |
| kJ | 1 | 1 | 22 | — | 2 | — | 60 | 44 | 25 | 34 | 80 | 157 | 118 | 81 | 49 | — | 16 | — | — |
Swell 2 Height (m) Direction Period (s) | S 11 | S 11 | — | S 11 | — | S 11 | N 4 | N 4 | — | — | — | NNW 3 | — | WNW 3 | WNW 3 | — | — | — | — |
| kJ | 3 | 2 | — | 2 | — | 2 | 2 | 2 | — | — | — | 1 | — | 1 | 1 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | S 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | SSW 6 | SSW 4 | SSW 6 | SSW 6 | SSW 6 | — | — | N 4 | NNW 2 | NNW 2 | — | WSW 2 | — | SSW 3 | SSW 4 | SSW 5 | SSW 5 | SSW 6 |
| kJ | 20 | 34 | 5 | 46 | 43 | 66 | — | — | 1 | 1 | 1 | — | 1 | — | 4 | 34 | 46 | 80 | 85 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 283 | 273 | 280 | 280 | 101 | 273 | 280 | 161 | 179 | 167 | 0 | 51 | 125 | 288 | 255 | 275 | 255 | 280 | 174 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||
Header Global | |||||||||||||||||||
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