Trefor surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 11 am Monday 16 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 3PM is: 1.7m 6s primary swell from a Southwest direction (forecast issued at 11:00am March 16). The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (16 Mar)--
Afternoon (16 Mar)5.5ft (1.7m)6s
Evening (16 Mar)7ft (2.1m)7s

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


Updates in  hr  min  s Forecast update imminent
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM9AM12PM3PM6PM9PM0AM3AM6AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.6
WSW
0.1
NW
1.7
SW
1.9
SW
2.1
SW
2.1
SW
2
SW
2
SW
2.1
SW
2
SW
1.9
SW
1.8
SW
1.5
SW
1.2
SW
1.1
SW
0.8
SW
0.4
WSW
0.6
SW
0.3
WSW
0.5
SW
0.4
SW
0.4
SW
0.4
SW
0.3
SW
Period(s) (?)66677777788888881781677777
Wave
Graph
(?)Metric surfscale
Energy kJ (?)01210341470440400407452453429378291182142881195350252120149
Wind
(km/h)
35
SW
35
SW
30
SSW
30
SSW
30
S
30
S
35
S
45
S
40
S
40
S
35
S
30
S
20
SSE
15
SSE
15
SE
10
ESE
5
E
5
ENE
5
E
10
ESE
10
E
10
ESE
10
SE
5
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffcross-
off
cross-
off
glassglasscross-
off
cross-
off
cross-
off
cross-
off
glass
High Tide
/ height (m)
7:03AM
3.20
7:23PM
3.08
7:33AM
3.52
7:53PM
3.35
8:04AM
3.81
8:25PM
3.60
Low Tide
/ height (m)
1:55PM
0.55
2:03AM
0.56
2:30PM
0.23
2:39AM
0.30
3:06PM
-0.03
3:15AM
0.11
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Sunrise6:31-------6:28-------6:26-------
Sunset---6:22-------6:23-------6:25----
cloud
cloud
light rain
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
--4---------------------
Temp. °C899999999101111101010111315171615141312
Feels °C (?)1233322012356779111416141313119
  • 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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