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Surf Forecasts:

Trefor surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 11 am Sunday 18 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
7.6° C
 (Which is slightly cooler than normal)

How big are the waves at Trefor today?

The current surf forecast for Trefor at 6PM is: 0.5m 6s primary swell from a Southwest direction and 0.1m 9s secondary swell from a West direction (forecast issued at 11:00am January 18). The wind direction is predicted to be offshore.

Time (GMT) & DateWave HeightWave Period
Morning (18 Jan)2ft (0.6m)6s
Afternoon (18 Jan)1.5ft (0.5m)7s
Evening (18 Jan)1.5ft (0.4m)7s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.6
SSW
0.5
SW
0.5
SW
0.5
SW
0.4
SW
0.5
SW
0.4
SW
0.4
SW
0.4
SW
0.4
SW
0.6
SW
0.6
SW
0.7
SW
0.8
SW
1.3
SSW
1
SW
1
SW
1
SW
1.6
SW
1.7
SSW
1.2
SSW
0.4
SW
1.9
SSW
2.2
SSW
Period(s) (?)6776744445555566679881278
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2421211616964581823293512866689140233517654345715
Wind
(km/h)
10
SE
10
SSE
10
S
10
SSE
10
SSE
10
S
15
SSE
10
SE
10
SE
10
SSE
10
SSE
15
SE
20
SE
30
SE
20
SSE
30
SE
45
SE
50
SE
55
SE
50
SE
25
S
35
SE
40
SSE
35
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffoffoffoffcross-
off		offoffoffoffoffoffoffoffoffoffoffoffoffoffoff
High Tide
/ height (m)
8:24AM
3.43
8:41PM
3.24
8:57AM
3.60
9:13PM
3.32
9:29AM
3.74
9:45PM
3.37
Low Tide
/ height (m)
3:24PM
0.46
3:33AM
0.46
4:00PM
0.31
4:07AM
0.36
4:36PM
0.21
4:42AM
0.32
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Sunrise8:19-------8:18-------8:18-------
Sunset--4:35-------4:37-------4:37-----
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
cloud
rain showers
clear
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
Rain (mm)
--------------1--1125211
Temp. °C677777766888877678886677
Feels °C (?)344444333554301-1-3-3-4-30-2-1-1
  • 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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