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Surf Forecasts:

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

information circle48hr Weather and Surf, issued 11 am Monday 26 Jan 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
8.4° C
 (Which is normal for this time of year)

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

The current surf forecast for Trearddur Bay (Holy Island) at 2PM is: 1.4m 7s primary swell from a South-southwest direction and 0.4m 11s secondary swell from a Southwest direction, 1.1m 5s secondary swell from a Southeast direction (forecast issued at 11:00am January 26). The wind direction is predicted to be cross-shore.

Time (GMT) & DateWave HeightWave Period
Morning (26 Jan)3.5ft (1.0m)6s
Afternoon (26 Jan)4.5ft (1.4m)7s
Evening (26 Jan)4.5ft (1.3m)8s

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
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
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
1
0
1
1
0
0
2
2
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1
S
1.5
S
1.4
SSW
1.5
SSW
1.3
SSW
1
SSW
1.1
SSW
3
SE
2.5
SSE
3
S
5
SSW
5.5
SSW
5.5
SW
3.5
SW
2.5
SSW
2.3
SSW
1.7
SSW
2
SW
2
SSW
1.8
SSW
1.7
SSW
2.1
SSW
2
SSW
1.7
SSW
Period(s) (?)66778887891213121212118109910111110
Wave
Graph
(?)Metric surfscale
Energy kJ (?)611781862421861401698137291592781892528903347117941307336769629584637972909581
Wind
(km/h)
25
SE
30
SE
30
SE
45
ESE
50
ESE
50
ESE
60
ESE
65
SE
55
SE
60
SSE
65
SSE
75
S
50
SSW
35
SSW
30
SSE
25
SE
30
SE
30
SE
30
ESE
35
SE
25
SE
25
ESE
25
E
25
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscross-
on		oncross-
on		cross-
on		crosscrosscrosscross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
3:23PM
5.06
4:01AM
4.65
4:33PM
4.82
5:21AM
4.55
6:01PM
4.72
Low Tide
/ height (m)
9:09AM
1.67
9:47PM
1.60
10:17AM
1.88
10:59PM
1.82
11:40AM
1.96
12:23AM
1.86
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Sunrise8:11-------8:11-------8:08-------
Sunset--4:49-------4:51-------4:52-----
cloud
cloud
cloud
mod rain
light rain
light rain
light rain
light rain
light rain
part cloud
cloud
light rain
light rain
cloud
part cloud
part cloud
cloud
cloud
clear
part cloud
part cloud
clear
clear
clear
Rain (mm)
---822233--11-----------
Temp. °C567556688887887668977655
Feels °C (?)-2-1-1-5-6-5-7-6-4-5-6-9-3-1-1-1-112-20-1-1-1
  • 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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View detailed surf forecast for Trearddur Bay (Holy Island) at:
surf-forecast.com

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