Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Trefor surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 5 am Monday 19 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
7.7° C
 (Which is slightly cooler than normal)

How big are the waves at Trefor today?

The current surf forecast for Trefor at 10AM is: 0.6m 5s primary swell from a Southwest direction (forecast issued at 05:00am January 19). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (GMT) & DateWave HeightWave Period
Morning (19 Jan)2ft (0.6m)5s
Afternoon (19 Jan)2.5ft (0.8m)6s
Evening (19 Jan)4.5ft (1.4m)6s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Monday
19
Tuesday
20
Wednesday
21
Thu
22
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
1
0
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
W
0.2
WSW
0.6
SW
0.7
SW
0.8
SW
0.9
SSW
1.4
SSW
0.2
WSW
0.1
SW
0.8
SW
0.7
SW
0.9
SW
1.4
SW
0.6
SW
0.7
SW
1.8
SW
1.6
SW
1.5
SW
1.1
SW
0.8
SW
0.6
SW
0.5
SW
0.4
SW
0.6
SW
Period(s) (?)1375566616165569910999998889
Wave
Graph
(?)Metric surfscale
Energy kJ (?)351928396916026113229592816110651942135919910457332446
Wind
(km/h)
15
SSE
15
SE
15
SE
15
SE
15
SE
20
SE
25
S
20
S
20
SSE
20
ESE
40
SE
55
SE
50
SE
55
SE
30
SSE
40
SSE
30
SSE
15
ESE
15
E
30
ESE
35
E
35
ESE
30
ESE
20
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffoffcross-
off		cross-
off		offcross-
off		cross-
off		offoffoffoffoffoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
8:57AM
3.60
9:13PM
3.32
9:29AM
3.74
9:45PM
3.37
10:01AM
3.83
10:19PM
3.39
Low Tide
/ height (m)
4:00PM
0.31
4:07AM
0.36
4:36PM
0.21
4:42AM
0.32
5:13PM
0.18
Monday
19
Tuesday
20
Wednesday
21
Thu
22
Sunrise--8:18-------8:18-------8:17-----
Sunset----4:37-------4:37-------4:39---
clear
clear
clear
clear
clear
cloud
light rain
cloud
part cloud
cloud
cloud
cloud
light rain
light rain
rain showers
cloud
part cloud
clear
part cloud
part cloud
cloud
light rain
rain showers
light rain
Rain (mm)
------1-----113------111
Temp. °C6668987665689877765778109
Feels °C (?)222452110-1-3-4-2-3-1-2010-1-1144
  • 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

Latest Updates

The World’s Most Inconsistent Waves
Ben Mondy

The World’s Most Inconsistent Waves

Huntington, Dribbleton, Virginia, Holland and the Superbank! We recently had a look at the world’s most consistent waves. This was based on the combination of swells and wind directed at 7,000 surf spots, as compiled from our data since 2006. Those stats, represented in easy-to-read graphics, are located under each wave’s spot guides, with historical swell and wind breakdowns available by month, season, and year. There is also an offshore filter, which shows how often the swells come with clean

Read more

Read more

Discover more articles and updates in the Greenroom.

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

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest