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Surf Forecasts:

Trefor surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 5 pm Tuesday 17 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 12AM is: 1.4m 8s primary swell from a Southwest direction (forecast issued at 05:00pm March 17). The wind direction is predicted to be offshore.

Time (GMT) & DateWave HeightWave Period
Morning (18 Mar)--
Afternoon (18 Mar)6.5ft (2.0m)8s
Evening (18 Mar)5ft (1.6m)8s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM
Rating
(10 max)
0
1
2
1
1
1
1
1
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
SW
1.8
SW
1.6
SW
1.4
SW
1.1
SW
0.9
SW
0.8
SW
0.3
WSW
0.3
WSW
0.5
SW
0.2
WSW
0.4
SW
0.4
SW
0.3
SW
0.3
SW
0.1
W
0.2
WSW
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
SW
Period(s) (?)888888817167157777167131313161578
Wave
Graph
(?)Metric surfscale
Energy kJ (?)5074373142771451077154502521201278554335413
Wind
(km/h)
40
S
30
S
25
S
20
S
10
SE
10
SE
5
E
5
NE
5
N
10
NNE
5
ENE
5
ESE
0
NW
0
E
5
S
5
WSW
5
NW
5
N
5
E
5
SE
5
SE
5
ESE
5
ESE
5
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		offoffoffoffcross-
off		glassglassoncross-
on		crossglassglassglassoffglasscross-
on		glasscross-
off		glassglassglassglassglass
High Tide
/ height (m)
7:53PM
3.35
8:04AM
3.81
8:25PM
3.60
8:37AM
4.04
8:58PM
3.79
9:12AM
4.18
Low Tide
/ height (m)
2:30PM
0.23
2:39AM
0.30
3:06PM
-0.03
3:15AM
0.11
3:41PM
-0.17
3:52AM
0.00
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Sunrise------6:26-------6:22-------6:20-
Sunset-6:23-------6:25-------6:28------
cloud
cloud
cloud
part cloud
cloud
clear
cloud
part cloud
part cloud
clear
cloud
clear
clear
clear
clear
clear
clear
clear
cloud
clear
clear
clear
clear
clear
Rain (mm)
------------------------
Temp. °C111011101010111416161514131211131312121110101011
Feels °C (?)346678101214141413121191111101098789
  • 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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