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Surf Forecasts:

Trefor surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 5 am Friday 20 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
8.8° C
 (Which is 1.1°C warmer than normal for this time of year)

How big are the waves at Trefor today?

The current surf forecast for Trefor at 1PM is: 0.1m 8s primary swell from a Southwest direction (forecast issued at 05:00am March 20). The wind direction is predicted to be cross-shore.

Time (GMT) & DateWave HeightWave Period
Morning (20 Mar)0.5ft (0.1m)6s
Afternoon (20 Mar)0.5ft (0.1m)8s
Evening (20 Mar)0.5ft (0.1m)8s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Friday
20
Saturday
21
Sunday
22
Mon
23
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 (?)
0.1
W
0.1
W
0.1
W
0.1
SW
0.1
SW
0.1
SW
0.1
SW
0.1
SW
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
SW
0.1
W
0.1
W
0.1
W
0.1
W
0.1
SW
0.1
SW
0.1
SW
0.6
N
0.2
WSW
Period(s) (?)1615688888111414131313913131313131212311
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5413332224443333333766812
Wind
(km/h)
5
SE
5
SE
10
SSE
5
SW
5
WNW
5
NNW
0
NNE
5
ESE
0
SSE
5
ESE
0
N
5
WNW
5
WNW
5
N
5
SSE
10
SSE
10
SSE
5
SSE
0
S
10
N
15
NNW
15
N
20
NE
15
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffcross-
off		cross-
on		glassglassglassglassglassglassglasscross-
on		glassglassoffoffoffglassononcross-
on		cross-
on		cross-
on
High Tide
/ height (m)
9:12AM
4.18
9:32PM
3.90
9:49AM
4.20
10:09PM
3.91
10:29AM
4.09
10:49PM
3.81
Low Tide
/ height (m)
4:18PM
-0.20
4:30AM
-0.01
4:56PM
-0.09
5:10AM
0.08
5:36PM
0.14
Friday
20
Saturday
21
Sunday
22
Mon
23
Sunrise--6:20-------6:18-------6:16-----
Sunset-----6:30-------6:30-------6:32--
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
part cloud
part cloud
Rain (mm)
------------------------
Temp. °C1111111212111110109101211111099891010986
Feels °C (?)9881010910886810998665776531
  • 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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