Trearddur Bay (Holy Island) Surf Break
Lat Long: 53.28° N 4.62° W

Trearddur Bay (Holy Island) 48 hour detailed Surf Forecast

Weather Forecast for Trearddur Bay (Holy Island)

Issued: 6 pm 08 Jun 2026 (local time)

Forecast update in  hr  min

Today's Trearddur Bay (Holy Island) sea temperature is
13.0° C

Slightly warmer than usual

Trearddur Bay (Holy Island) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Trearddur Bay (Holy Island) today (09 Jun):

  • Morning surf: Morning surf (09 Jun, local time) - 5ft (1.5m), 6s period with WSW swell.
  • Afternoon surf: Afternoon surf (09 Jun, local time) - 4.5ft (1.4m), 6s period with SW swell.
  • Evening surf: Evening surf (09 Jun, local time) - 4ft (1.2m), 5s period with WSW swell.

The current surf forecast for Trearddur Bay (Holy Island) at 12AM is: 1.4m 6s primary swell from a Southwest direction and 0.1m 12s secondary swell from a Southwest direction (forecast issued at 06:00pm June 08). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (09 Jun)5ft (1.5m)6s
Afternoon (09 Jun)4.5ft (1.4m)6s
Evening (09 Jun)4ft (1.2m)5s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 16mm), heaviest on Mon night. Very mild (max 13°C on Mon night, min 10°C on Mon night). Mainly strong winds.

Mon
8
Tuesday
9
Wednesday
10
Thu
11
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
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
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
7
1.4
SW
5
1.4
SW
6
1.4
SW
6
1.5
SW
6
1.5
WSW
6
1.5
WSW
6
1.6
SW
6
1.4
SW
6
1.2
SW
6
1.2
WSW
5
0.9
SW
7
1.1
WSW
4
1.1
WSW
4
1.1
WSW
4
1.2
WSW
5
1
WSW
5
0.9
WSW
4
0.6
SW
6
0.6
SW
6
0.9
WSW
4
0.9
SW
4
1.6
SSW
5
1.7
SSW
6
Wave Graph
Metric surfscale
Energy kJ
109
110
122
152
170
148
143
154
123
88
59
65
49
44
50
59
42
30
30
31
22
24
135
238
Wind (km/h)
35
SSW
35
SW
25
SW
25
WSW
30
WSW
30
WSW
35
WSW
30
WSW
30
W
25
W
25
W
20
WNW
30
W
25
WSW
30
W
25
W
25
W
15
W
15
W
15
W
15
SW
30
S
40
S
35
SSW
Wind State
on
on
on
cross-on
cross-on
on
on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross-on
High Tide
4:55PM4.39m
5:10AM4.71m
5:58PM4.44m
6:13AM4.75m
7:00PM4.57m
7:15AM4.87m
Low Tide
10:57PM1.99m
11:35AM1.57m
00:01AM1.93m
12:37PM1.47m
1:05AM1.76m
clear
part cloud
light rain
rain showers
rain showers
clear
part cloud
cloud
rain showers
rain showers
light rain
light rain
light rain
cloud
light rain
rain showers
rain showers
clear
part cloud
cloud
cloud
cloud
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:52
4:50
4:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:42
9:43
9:44
9:45
 mm
2
1
1
1
1
1
1
1
1
1
1
2
2
Temp °C
12
12
13
12
11
10
10
12
13
13
12
11
11
10
11
12
12
12
13
12
12
11
11
12
Feels °C
5
5
8
6
5
3
2
6
6
8
6
6
4
4
5
6
7
8
9
8
9
5
4
6
Swell 1
Height (m)
Direction
Period (s)
0.4
NW
4
0.1
SW
12
0.9
SW
7
0.2
N
5
0.6
SW
6
0.6
SW
6
0.2
WNW
4
Energy kJ
4
6
65
2
30
31
1
Swell 2
Height (m)
Direction
Period (s)
Energy kJ
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1.1
SW
7
1.4
SW
5
1.4
SW
6
1.4
SW
6
1.5
SW
6
1.5
WSW
6
1.5
WSW
6
1.6
SW
6
1.4
SW
6
1.2
SW
6
1.2
WSW
5
0.8
WNW
4
1.1
WSW
4
1.1
WSW
4
1.1
WSW
4
1.2
WSW
5
1
WSW
5
0.9
WSW
4
0.5
WNW
4
0.6
WNW
4
0.9
WSW
4
0.9
SW
4
1.6
SSW
5
1.7
SSW
6
Energy kJ
109
110
122
152
170
148
143
154
123
88
59
24
49
44
50
59
42
30
7
11
22
24
135
238
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
1
1
3
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
1
Distance (km)
251
251
246
251
250
246
251
384
838
326
51
252
246
246
236
1087
1083
548
51
51
246
246
253
246
Best forecast wave conditions in Anglesy
Rating
(10 max)
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
2
3
3
2
3
2
3
1
2
2
2
3
1
2
2
2
2
2
2
2
Header Global
Rating
(10 max)
5
6
6
9
9
8
7
6
5
5
5
5
5
5
6
9
9
9
9
9
8
6
8
7
  • 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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