Surf Break

Lat Long: 53.28° N 4.62° W

Trearddur Bay (Holy Island) 48 hour detailed Surf Forecast

Issued: 12 am 19 Oct 2026 (local time)

Forecast update in  hr  min

Today's Trearddur Bay (Holy Island) sea temperature is
15.4°C
1.7° 

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


Time (BST) & DateWave HeightWave Period
Morning (19 Oct)--
Afternoon (19 Oct)1.5ft (0.4m)4s
Evening (19 Oct)2ft (0.6m)4s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Wed morning. Very mild (max 13°C on Mon morning, min 8°C on Wed morning). Winds increasing (light winds from the ESE on Tue morning, gales from the WNW by Wed morning).

Monday
19
Tuesday
20
Wednesday
21
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
4 PM
7 PM
10 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)
0.5
NE
3
0.6
NE
4
0.9
NE
4
0.9
NE
5
0.5
NNE
5
0.4
SSE
4
0.5
SSE
4
0.7
SSE
4
0.8
S
5
0.8
S
5
0.7
S
5
0.5
S
5
0.4
SSW
5
0.4
SSW
5
0.6
S
4
0.8
SSW
4
1.3
S
5
1.4
SW
6
2.2
WSW
6
3
W
7
3.5
W
7
3.5
W
7
3
W
7
2.5
W
7
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
0
5
10
19
29
34
25
12
10
9
13
24
85
143
369
808
1170
1170
809
558
Wind (km/h)
25
ENE
30
NE
30
NE
20
ENE
20
ESE
20
SE
20
ESE
20
SE
20
SE
15
SE
10
SE
10
ESE
10
SSE
15
SSE
15
SSE
25
SSE
30
SE
30
SE
60
WNW
65
WNW
60
WNW
50
W
40
W
35
WSW
Wind State
cross-off
off
off
off
cross-off
cross
cross-off
cross-off
cross
cross
cross
cross-off
cross
cross-on
cross-on
cross
cross
cross
cross-on
cross
cross-on
cross-on
cross-on
cross-on
High Tide
4:53AM4.11m
5:20PM4.39m
6:32AM4.13m
6:46PM4.48m
7:48AM4.35m
7:52PM4.73m
Low Tide
10:30PM2.39m
11:00AM2.68m
11:58PM2.41m
12:32PM2.63m
1:20AM2.18m
1:42PM2.36m
clear
clear
cloud
rain showers
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
light rain
cloud
part cloud
clear
part cloud
light rain
light rain
light rain
light rain
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
7:50
—
—
—
—
—
—
—
7:52
—
—
—
—
—
—
—
7:54
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
6:14
—
—
—
—
—
—
—
6:12
—
—
—
—
—
—
—
6:09
—
—
 mm
—
—
—
1
—
—
—
—
—
—
—
—
1
—
—
—
—
1
1
2
4
—
—
—
Temp °C
10
10
10
11
13
13
13
12
11
10
10
10
9
10
10
10
11
11
10
8
10
11
11
11
Feels °C
5
3
3
7
9
8
8
7
6
6
7
7
6
6
6
5
5
5
-2
-5
-3
0
2
4
  • 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
How to use the Wavefinder 

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