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

information circle48hr Weather and Surf, issued 5 pm Monday 02 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
8.2° 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 9PM is: 0.4m 7s primary swell from a Southwest direction and 0.1m 15s secondary swell from a Southwest direction (forecast issued at 05:00pm February 02). An open ocean swell of 1.2m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (02 Feb)--
Afternoon (02 Feb)1.5ft (0.4m)8s
Evening (02 Feb)1.5ft (0.4m)7s

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

Updates in  hr  min  s Forecast update imminent
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
SW
0.4
SW
0.4
SW
0.4
SSW
0.6
SSW
0.7
SSW
0.6
SSW
0.4
SW
0.6
SW
0.6
SW
0.6
SW
0.5
SW
0.7
SSW
1.2
S
1.3
SSW
1.2
SSW
1.1
SSW
0.9
SSW
0.8
SSW
0.7
SSW
0.6
SSW
0.4
SSW
0.4
SSW
0.3
SW
Period(s) (?)887810109171616161610987778888914
Wave
Graph
(?)Metric surfscale
Energy kJ (?)16141423658358971691631591248522521816414097745240243034
Wind
(km/h)
25
ESE
35
E
40
E
40
E
40
E
45
E
40
E
35
E
35
E
35
E
30
E
20
ESE
20
ESE
20
SE
15
ESE
20
SE
20
E
30
E
35
E
35
E
40
E
50
E
45
E
45
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
10:58PM
5.59
11:13AM
5.95
11:37PM
5.57
11:52AM
5.92
12:15AM
5.46
Low Tide
/ height (m)
4:43PM
0.51
4:55AM
0.78
5:25PM
0.45
5:35AM
0.76
6:05PM
0.52
6:13AM
0.84
Monday
02
Tuesday
03
Wednesday
04
Thursday
05
Sunrise------8:00-------7:58-------7:56-
Sunset5:01-------5:04-------5:06-------
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
part cloud
light rain
light rain
cloud
part cloud
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
Rain (mm)
------111-11------------
Temp. °C887776544445677898877766
Feels °C (?)10-2-2-2-4-4-5-5-4-301133310-1-2-4-5-5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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