Surf Break

Lat Long: 53.28° N 4.62° W

Trearddur Bay (Holy Island) 48 hour detailed Surf Forecast

Issued: 11 am 10 Nov 2026 (local time)

Forecast update in  hr  min

Today's Trearddur Bay (Holy Island) sea temperature is
13.3°C
1.1° 

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 (10 Nov):

  • Morning surf: Morning surf (10 Nov, local time) - 2.5ft (0.7m), 11s period with SW swell.
  • Afternoon surf: Afternoon surf (10 Nov, local time) - 2.5ft (0.8m), 12s period with SW swell.
  • Evening surf: Evening surf (10 Nov, local time) - 2ft (0.6m), 14s period with SW swell.

The current surf forecast for Trearddur Bay (Holy Island) at 8PM is: 0.8m 11s primary swell from a Southwest direction and 0.6m 14s secondary swell from a Southwest direction (forecast issued at 11:00am November 10). An open ocean swell of 0.6m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (10 Nov)2.5ft (0.7m)11s
Afternoon (10 Nov)2.5ft (0.8m)12s
Evening (10 Nov)2ft (0.6m)14s

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


Short Range Forecast

Mostly dry. Mild temperatures (max 9°C on Tue morning, min 7°C on Tue morning). Winds increasing (light winds from the ESE on Tue morning, fresh winds from the NNE by Thu morning).

Tue
10
Wednesday
11
Thursday
12
Fri
13
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
9 AM
12 PM
3 PM
6 PM
9 PM
12 AM
3 AM
6 AM
Rating
(10 max)
1
1
1
0
0
0
1
0
0
0
1
1
1
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)
0.7
SW
11
0.8
SW
11
0.8
SW
12
0.8
SW
11
0.6
SW
14
1
SW
13
0.9
SW
13
0.9
SW
12
0.9
SW
12
0.9
SW
12
0.9
SW
12
0.8
SW
12
0.7
SW
11
0.6
SW
11
0.6
SW
11
0.6
SSW
11
0.6
SSW
10
0.6
SSW
10
0.6
SSW
10
0.5
SW
10
0.5
SW
10
0.5
SW
10
0.4
SSW
10
0.4
SW
9
Wave Graph
Metric surfscale
Energy kJ
130
155
161
153
128
336
277
260
248
248
212
169
130
96
94
76
71
68
67
48
48
47
37
22
Wind (km/h)
15
E
5
ESE
10
ENE
25
ENE
25
ENE
30
ENE
30
ENE
30
ENE
30
ENE
25
ENE
25
NE
20
NE
15
NNE
25
N
30
NNE
35
NE
35
NNE
30
NNE
30
NNE
25
NNE
20
NNE
15
NNE
15
NNE
15
N
Wind State
cross-off
cross-off
off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
cross-off
cross-off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
High Tide
10:33AM5.50m
10:50PM5.38m
11:06AM5.49m
11:25PM5.26m
11:40AM5.42m
00:01AM5.09m
Low Tide
4:39PM1.18m
4:56AM1.24m
5:15PM1.27m
5:30AM1.40m
5:51PM1.41m
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
—
—
—
—
—
—
7:33
—
—
—
—
—
—
—
7:35
—
—
—
—
—
—
—
7:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
4:30
—
—
—
—
—
—
—
4:29
—
—
—
—
—
—
—
4:27
—
—
—
—
4:25
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
7
9
9
9
9
8
8
9
9
9
9
8
8
9
9
8
7
8
8
8
8
8
8
8
Feels °C
3
6
6
3
3
1
1
2
2
3
3
3
4
3
2
0
-2
0
0
1
2
2
2
3
  • 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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