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Surf Forecasts:

Trearddur Bay (Holy Island) surfForecast / Wales – Anglesy / UK

information circle48hr Weather and Surf, issued 11 am Sunday 15 Feb 2026 GMT
Forecast update in hr  min  s Forecast update imminent
Trearddur Bay (Holy Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Trearddur Bay (Holy Island) sea temperature is
8.3° C
 (Which is slightly warmer than usual)

How big are the waves at Trearddur Bay (Holy Island) today?

The current surf forecast for Trearddur Bay (Holy Island) at 3PM is: 1.4m 6s primary swell from a Southwest direction (forecast issued at 11:00am February 15). The wind direction is predicted to be cross-onshore.

Time (GMT) & DateWave HeightWave Period
Morning (15 Feb)6ft (1.8m)7s
Afternoon (15 Feb)4.5ft (1.4m)6s
Evening (15 Feb)6ft (1.9m)6s

Table - waves today at Trearddur Bay (Holy Island). (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.8
SSW
1.6
SSW
1.4
SW
1.5
WSW
1.9
WSW
2.1
WSW
2.3
WSW
2.4
W
2.5
W
2.5
W
1.8
WNW
1.1
SW
0.9
SW
0.9
SW
0.8
SW
0.6
SW
0.6
SW
0.6
SW
0.6
SW
0.5
SW
0.5
SW
0.5
SW
1.1
SSE
1.2
SSE
Period(s) (?)766566666667888888888856
Wave
Graph
(?)Metric surfscale
Energy kJ (?)33421511910720729038445550351924613011510082545455553331316994
Wind
(km/h)
35
SSW
30
SSW
35
W
40
W
40
W
40
W
45
W
45
W
45
WSW
45
W
35
WNW
40
NNW
35
NNW
35
NNW
40
NNW
30
NNE
25
NNE
25
NE
20
ENE
25
E
20
ESE
25
SE
25
ESE
25
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffcross-
off		cross-
off		crosscross-
off		cross-
off
High Tide
/ height (m)
9:12AM
5.09
9:37PM
4.95
9:47AM
5.36
10:10PM
5.15
10:19AM
5.57
10:41PM
5.31
Low Tide
/ height (m)
3:22PM
1.44
3:34AM
1.43
3:55PM
1.13
4:06AM
1.16
4:28PM
0.87
4:39AM
0.94
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Sunrise7:37-------7:35-------7:33-------
Sunset--5:28-------5:30-------5:31-----
light rain
light rain
rain showers
clear
light rain
light rain
thunderstorm
cloud
cloud
light rain
rain showers
light rain
clear
clear
clear
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
Rain (mm)
112-111--111------------
Temp. °C989887777687655554322332
Feels °C (?)221-1-1-2-3-3-3-40-2-3-5-5-3-2-4-4-6-4-4-5-6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Trearddur Bay (Holy Island) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Trearddur Bay (Holy Island) at:
surf-forecast.com

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