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Surf Forecasts:

Trefor surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 11 pm Wednesday 11 Mar 2026 GMT
Forecast update in hr  min  s Forecast update imminent
Trefor surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Trefor sea temperature is
8.5° C
 (Which is slightly warmer than usual)

How big are the waves at Trefor today?

The current surf forecast for Trefor at 3AM is: 2.5m 8s primary swell from a Southwest direction (forecast issued at 11:00pm March 11). The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (12 Mar)11ft (3.5m)9s
Afternoon (12 Mar)13ft (4.0m)10s
Evening (12 Mar)10ft (3.0m)10s

Table - waves today at Trefor. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Thursday
12
Friday
13
Saturday
14
9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 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
See all maps
Wave Height (m) & direction (?)
1.8
SW
2.2
SW
2.5
SW
3
SW
3.5
SW
3.5
SW
4
SW
3
WSW
3
WSW
3
WSW
3
WSW
3
WSW
2.5
WSW
2.5
WSW
2.1
WSW
1.6
WSW
1.4
WSW
1
SW
0.9
SW
1.3
WNW
1.3
WNW
1.2
W
1.1
W
1
WSW
Period(s) (?)6788910101010988887999966655
Wave
Graph
(?)Metric surfscale
Energy kJ (?)25649384311361684249830991939169713641081103994976844340430015210793100886545
Wind
(km/h)
35
SW
40
SSW
45
SSW
55
SSW
50
SSW
60
SSW
65
SW
45
SW
50
WSW
50
WSW
50
WSW
45
WSW
45
SW
40
WSW
35
WSW
25
W
20
WNW
30
NW
30
NW
25
NW
30
WNW
25
WNW
20
WSW
15
SW
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		crosscrosscrosscrosscross-
off		crosscrosscross-
on		cross-
on		cross-
on		oncross-
on		cross-
on		cross-
on		crosscross-
off
High Tide
/ height (m)
1:56AM
2.48
3:01PM
2.31
4:09AM
2.40
5:15PM
2.36
5:43AM
2.60
Low Tide
/ height (m)
8:14PM
1.50
9:07AM
1.52
9:54PM
1.61
11:08AM
1.50
11:42PM
1.47
12:29PM
1.24
Thursday
12
Friday
13
Saturday
14
Sunrise----6:39-------6:37-------6:35---
Sunset-------6:15-------6:16-------6:19
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
cloud
part cloud
part cloud
rain showers
cloud
part cloud
light rain
light rain
clear
light rain
rain showers
rain showers
rain showers
rain showers
part cloud
light rain
Rain (mm)
----1112---1--21-22111-1
Temp. °C9999101111107544554666667777
Feels °C (?)11-1-20-1-21-4-7-8-8-6-5-400-1-1-10022
  • 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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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Trefor surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Trefor at:
surf-forecast.com

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