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Surf Forecasts:

Trefor surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 5 am Thursday 12 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 11AM is: 3.5m 9s primary swell from a Southwest direction (forecast issued at 05:00am March 12). The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (12 Mar)10ft (3.0m)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
Sun
15
3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM
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 (?)
2.5
SW
3
SW
3
SW
3.5
SW
4
SW
3
WSW
3
WSW
3
WSW
3
WSW
3
WSW
3
WSW
2.5
WSW
2.1
WSW
1.6
WSW
1.2
SW
1
SW
0.9
SW
0.7
SW
0.6
SW
1.1
W
1
WSW
0.4
NW
0.1
W
0.4
NW
Period(s) (?)89910101010889987999998555174
Wave
Graph
(?)Metric surfscale
Energy kJ (?)886128215412273300616661454108910551488118975944340423715511275575345854
Wind
(km/h)
45
SSW
50
SSW
50
SSW
60
SSW
65
SW
50
SW
50
WSW
45
WSW
50
WSW
45
WSW
40
SW
40
WSW
30
W
20
W
30
WNW
25
NW
25
NW
20
NW
20
WNW
15
W
25
SW
15
SW
20
SW
20
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscross-
off		cross-
off		crosscrosscrosscross-
on		cross-
on		cross-
on		oncross-
on		crosscross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
3:01PM
2.31
4:09AM
2.40
5:15PM
2.36
5:43AM
2.60
6:16PM
2.57
Low Tide
/ height (m)
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
Sun
15
Sunrise--6:39-------6:37-------6:35-----
Sunset-----6:15-------6:16-------6:19--
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
part cloud
clear
cloud
cloud
cloud
cloud
rain showers
rain showers
rain showers
rain showers
part cloud
cloud
cloud
light rain
light rain
cloud
Rain (mm)
--111111------1211---11-
Temp. °C9910111110754456666666777777
Feels °C (?)-1-100-20-4-6-8-7-5-4-11-1-1-11221222
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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