Surf Forecasts:
How big are the waves at Trearddur Bay (Holy Island) today (18 Jun):
- Morning surf: Morning surf (18 Jun, local time) - 4.5ft (1.3m), 5s period with SSW swell.
- Afternoon surf: Afternoon surf (18 Jun, local time) - 5.5ft (1.7m), 6s period with SSW swell.
- Evening surf: Evening surf (18 Jun, local time) - 5ft (1.5m), 6s period with SSW swell.
The current surf forecast for Trearddur Bay (Holy Island) at 6AM is: 1.0m 5s primary swell from a South-southwest direction and 0.1m 11s secondary swell from a Southwest direction (forecast issued at 12:00am June 18). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jun) | 4.5ft (1.3m) | 5s |
| Afternoon (18 Jun) | 5.5ft (1.7m) | 6s |
| Evening (18 Jun) | 5ft (1.5m) | 6s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Fri afternoon. Very mild (max 16°C on Thu night, min 13°C on Fri night). Winds decreasing (strong winds from the S on Fri morning, calm by Sat afternoon). | ||||||||||||||||||||||||
Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||||||||||||
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 | 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 5 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SW 7 | SW 7 | SSW 7 | SW 7 | SW 7 | SW 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 64 | 45 | 45 | 91 | 143 | 187 | 193 | 153 | 148 | 172 | 223 | 281 | 356 | 297 | 199 | 123 | 81 | 59 | 47 | 37 | 31 | 23 | 23 | 12 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross | cross-on | cross-on | cross-on | glassy | glassy |
High Tide | 1:06AM5.71m | 1:41PM5.37m | 1:57AM5.62m | 2:34PM5.17m | 2:49AM5.46m | 3:27PM4.95m | ||||||||||||||||||
Low Tide | 7:23AM0.52m | 7:39PM1.03m | 8:17AM0.65m | 8:31PM1.22m | 9:11AM0.86m | 9:23PM1.45m | ||||||||||||||||||
 |  |  |  |  | | | | | | | | | | | | | | | |  | | |  | |
 | — | 4:50 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:49 | — | — | — | — | — | — | — | 9:49 | — | — | — | — | — | — | — | 9:49 | — |
mm | — | — | — | — | 2 | 2 | — | — | — | — | — | — | 2 | 1 | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 14 | 15 | 16 | 16 |
Feels °C | 9 | 11 | 9 | 10 | 9 | 9 | 10 | 11 | 11 | 11 | 10 | 9 | 10 | 8 | 8 | 10 | 10 | 12 | 12 | 10 | 11 | 13 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 11 | SW 11 | — | — | SW 11 | SW 11 | SW 11 | S 11 | — | — | — | — | — | — | S 10 | S 10 | SW 7 | SW 7 | SSW 7 | SW 7 | SW 7 | SW 7 |
| kJ | 5 | 5 | 5 | 5 | — | — | 5 | 5 | 5 | 2 | — | — | — | — | — | — | 2 | 2 | 47 | 37 | 31 | 23 | 23 | 12 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 10 | S 10 | — | WNW 3 | WNW 3 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 10 | S 10 | S 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | SW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | SSW 7 | — | — | WNW 3 | — | — | — |
| kJ | 64 | 45 | 45 | 91 | 143 | 187 | 193 | 153 | 148 | 172 | 223 | 281 | 356 | 297 | 199 | 123 | 81 | 59 | — | — | 2 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 186 | 186 | 186 | 206 | 234 | 246 | 186 | 186 | 186 | 205 | 206 | 206 | 100 | 234 | 234 | 186 | 238 | 88 | 192 | 51 | 208 | 350 | 163 | 163 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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