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Trearddur Bay (Holy Island) Surf Forecast
/ Wales – Anglesy (10 surf breaks) /
Trearddur Bay (Holy Island) surfForecast / Wales – Anglesy / UK
48hr Weather and Surf, issued 12 am Wednesday 02 Jul 2025 BST
How big are the waves at Trearddur Bay (Holy Island) today?
The current surf forecast for Trearddur Bay (Holy Island) at 2AM is: 0.1m 10s primary swell from a Southwest direction and 0.1m 6s secondary swell from a Southwest direction (forecast issued at 12:00am July 02). An open ocean swell of 0.8m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Jul) | 0.5ft (0.1m) | 10s |
| Afternoon (02 Jul) | 0.5ft (0.1m) | 5s |
| Evening (02 Jul) | 1.5ft (0.4m) | 3s |
Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)
Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | 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 | 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 | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |    |    |    |    |    |    |    |    |    | |||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 11 | 10 | 10 | 10 | 10 | 6 | 3 | 11 | 3 | 3 | 3 | 3 | 5 | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 7 | 5 | 5 | 6 | 6 | 5 | 5 | 6 | 4 | 6 | 5 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 5 | 5 | 5 | 3 | 4 | 4 | 4 | 4 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 6 | 5 | 6 | 5 | 3 | 1 | 2 | 5 | 7 | 8 | 10 | 6 | 11 | 7 | 14 | 26 | 18 | 18 | 16 | 14 | 15 | 38 | 138 | 284 | 269 | 263 | 216 | 157 | 113 | 99 | 112 | 188 | 152 | 137 | 105 | 100 | 131 | 140 | 121 | 89 | 76 | 8 | 10 | 3 | 8 | 4 | 10 | 3 | 3 | 3 | 3 | 2 | 3 | 4 | 4 | 5 | 7 | 8 | 9 | 8 |
Wind (km/h) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | on | on | cross | cross | cross- on | on | on | on | on | on | cross- on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross- on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross- off | cross | glass | glass | cross | cross | cross | cross- on | on | on | cross- on | on | cross- on |
High Tide / height (m) | 3:48AM 4.90 | 4:25PM 4.46 | 4:37AM 4.67 | 5:19PM 4.33 | 5:34AM 4.48 | 6:21PM 4.28 | 6:41AM 4.37 | 7:27PM 4.34 | 7:51AM 4.37 | 8:28PM 4.48 | 8:51AM 4.46 | 9:18PM 4.68 | 9:41AM 4.60 | 10:01PM 4.90 | ||||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (m) | 9:33PM 1.73 | 10:15AM 1.50 | 10:23PM 1.94 | 11:07AM 1.73 | 11:20PM 2.12 | 12:06PM 1.89 | 12:26AM 2.21 | 1:10PM 1.96 | 1:36AM 2.18 | 2:10PM 1.93 | 2:37AM 2.04 | 3:01PM 1.83 | 3:27AM 1.85 | 3:46PM 1.70 | 4:10AM 1.63 | |||||||||||||||||||||||||||||||||||||||||||||
Wednesday 02 | Thursday 03 | Friday 04 | Saturday 05 | Sunday 06 | Monday 07 | Tuesday 08 | Wednesday 09 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | - | - | - | 4:54 | - | - | - | - | - | - | - | 4:56 | - | - | - | - | - | - | - | 4:56 | - | - | - | - | - | - | - | 4:58 | - | - | - | - | - | - | - | 4:58 | - | - | - | - | - | - | - | 5:00 | - | - | - | - | - | - | - | 5:00 | - | - | - | - | - | - | - | 5:01 |
| Sunset | - | - | - | - | - | - | - | 9:47 | - | - | - | - | - | - | - | 9:47 | - | - | - | - | - | - | - | 9:46 | - | - | - | - | - | - | - | 9:46 | - | - | - | - | - | - | - | 9:45 | - | - | - | - | - | - | - | 9:45 | - | - | - | - | - | - | - | 9:45 | - | - | - | - |
 | | |  | |  | | | | |  | | | | | |  | | | | | |  |  |  | | | |  | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | - | 1 | 1 | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 13 | 13 | 13 | 12 | 13 | 13 | 15 | 15 | 16 | 15 | 13 | 12 | 13 | 13 | 15 | 15 | 17 | 15 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 15 | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 14 | 13 | 13 | 13 | 14 | 16 | 16 | 14 | 14 | 12 | 12 | 12 | 12 | 14 | 15 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 15 | 14 |
| Feels °C (?) | 9 | 9 | 9 | 8 | 9 | 9 | 13 | 11 | 14 | 12 | 10 | 9 | 10 | 8 | 9 | 10 | 13 | 12 | 10 | 9 | 8 | 8 | 9 | 7 | 8 | 10 | 9 | 9 | 10 | 10 | 11 | 10 | 9 | 9 | 7 | 7 | 7 | 9 | 11 | 10 | 8 | 8 | 6 | 8 | 8 | 9 | 12 | 13 | 12 | 14 | 13 | 12 | 10 | 11 | 12 | 12 | 11 | 12 | 14 | 12 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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