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Surf Forecasts:

Trefor surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 5 pm Saturday 17 Jan 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
7.5° C
 (Which is 1.0°C colder than average for this time of year)

How big are the waves at Trefor today?

The current surf forecast for Trefor at 7PM is: 0.8m 7s primary swell from a South-southwest direction and 0.4m 8s secondary swell from a Southwest direction (forecast issued at 05:00pm January 17). An open ocean swell of 0.6m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (17 Jan)--
Afternoon (17 Jan)3ft (0.9m)8s
Evening (17 Jan)2.5ft (0.8m)7s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Saturday
17
Sunday
18
Monday
19
Tuesday
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)
1
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 (?)
0.9
SW
0.8
SSW
0.8
SSW
0.7
SW
0.6
SW
0.6
SW
0.6
SSW
0.5
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.3
SW
0.3
SW
0.1
W
0.3
SW
0.4
SW
0.2
WSW
1.1
SW
0.9
SW
0.9
SW
0.1
SW
Period(s) (?)877776666667644618771666616
Wave
Graph
(?)Metric surfscale
Energy kJ (?)91536250373426211514101113536712132583564610
Wind
(km/h)
20
SE
15
ESE
15
ESE
15
SE
10
SE
10
ESE
10
SE
10
SSE
10
SSE
15
SSE
15
S
10
SSE
10
SE
10
SE
10
SSE
5
SSE
5
SSE
5
SSE
10
SE
15
SE
20
SE
35
SE
35
SE
40
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffoffoffoffoffoffoffoffoffoffoffoffcross-
off		offoffoff
High Tide
/ height (m)
8:07PM
3.13
8:24AM
3.43
8:41PM
3.24
8:57AM
3.60
9:13PM
3.32
9:29AM
3.74
Low Tide
/ height (m)
2:47PM
0.65
2:58AM
0.62
3:24PM
0.46
3:33AM
0.46
4:00PM
0.31
4:07AM
0.36
Saturday
17
Sunday
18
Monday
19
Tuesday
20
Sunrise------8:19-------8:18-------8:18-
Sunset4:32-------4:35-------4:37-------
clear
part cloud
clear
clear
cloud
cloud
part cloud
part cloud
cloud
clear
clear
part cloud
clear
cloud
part cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
cloud
part cloud
cloud
Rain (mm)
------------------------
Temp. °C987777777777667888888888
Feels °C (?)43334444443433466655310-1
  • 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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