Surf Break

Lat Long: 53.28° N 4.62° W

Trearddur Bay (Holy Island) 48 hour detailed Surf Forecast

Issued: 12 am 09 Oct 2026 (local time)

Forecast update in  hr  min

Today's Trearddur Bay (Holy Island) sea temperature is
16.3°C
2.1° 

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 (09 Oct):

  • Morning surf: Morning surf (09 Oct, local time) - 7.5ft (2.3m), 7s period with SW swell.
  • Afternoon surf: Afternoon surf (09 Oct, local time) - 5ft (1.6m), 8s period with SW swell.
  • Evening surf: Evening surf (09 Oct, local time) - 6.5ft (2.0m), 6s period with W swell.

The current surf forecast for Trearddur Bay (Holy Island) at 4AM is: 2.1m 7s primary swell from a Southwest direction (forecast issued at 12:00am October 09). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (09 Oct)7.5ft (2.3m)7s
Afternoon (09 Oct)5ft (1.6m)8s
Evening (09 Oct)6.5ft (2.0m)6s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Thu night. Very mild (max 16°C on Thu night, min 11°C on Sat night). Winds decreasing (strong winds from the SW on Thu night, light winds from the WSW by Sat night).

Friday
9
Saturday
10
Sunday
11
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)
2
SW
6
2.1
SW
7
2.3
SW
7
2.2
SW
7
1.6
SW
8
2
W
6
2
W
6
2.1
W
6
2.1
W
6
2.3
WNW
6
2.2
WNW
6
2.2
WNW
6
2
WNW
6
1.9
WNW
6
1.7
WNW
6
1.5
NW
6
0.6
SW
5
1
WNW
5
0.4
SW
5
0.4
SW
6
0.4
SW
5
0.6
S
3
0.9
S
4
1.2
S
5
Wave Graph
Metric surfscale
Energy kJ
321
363
451
479
305
261
255
322
325
384
381
374
305
249
191
141
18
54
8
8
7
7
28
74
Wind (km/h)
40
WSW
40
WSW
45
SW
40
W
35
WNW
40
W
45
W
45
W
50
W
45
WNW
40
WNW
45
WNW
45
WNW
30
WNW
35
WNW
30
WNW
20
WNW
15
WNW
5
WSW
10
S
15
SSE
20
SSE
15
SE
15
SE
Wind State
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
cross
High Tide
10:15AM5.45m
10:28PM5.77m
10:50AM5.55m
11:04PM5.80m
11:23AM5.58m
Low Tide
3:59AM0.78m
4:11PM1.06m
4:37AM0.68m
4:48PM0.91m
5:13AM0.68m
5:24PM0.86m
cloud
cloud
cloud
rain showers
clear
clear
part cloud
cloud
cloud
cloud
cloud
rain showers
rain showers
cloud
rain showers
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
7:33
—
—
—
—
—
—
—
7:33
—
—
—
—
—
—
—
7:35
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
6:37
—
—
—
—
—
—
—
6:35
—
—
—
—
—
—
—
6:32
—
—
 mm
—
—
—
1
—
—
—
—
—
—
—
1
1
—
1
—
—
—
—
—
—
—
—
—
Temp °C
16
16
16
16
13
14
13
12
12
12
12
12
12
12
13
12
12
11
11
12
12
13
13
12
Feels °C
10
10
8
9
5
5
3
3
2
2
2
2
3
5
5
5
7
7
9
9
8
8
9
8
  • 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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