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Surf Forecasts:

Harlech surfForecast / Wales – Mid / UK

information circle48hr Weather and Surf, issued 11 pm Tuesday 17 Mar 2026 GMT
Forecast update in hr  min  s Forecast update imminent
Harlech surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Harlech sea temperature is
8.4° C
 (Which is slightly warmer than usual)

How big are the waves at Harlech today?

The current surf forecast for Harlech at 6AM is: 0.7m 9s primary swell from a Southwest direction and 0.1m 20s secondary swell from a West direction (forecast issued at 11:00pm March 17). The wind direction is predicted to be offshore.

Time (GMT) & DateWave HeightWave Period
Morning (18 Mar)1ft (0.3m)18s
Afternoon (18 Mar)1ft (0.3m)16s
Evening (18 Mar)1.5ft (0.4m)9s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Wednesday
18
Thursday
19
Friday
20
9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM
Rating
(10 max)
0
1
1
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 (?)
1.1
SW
1
SW
0.9
SW
0.7
SW
0.3
WSW
0.3
WSW
0.3
WSW
0.3
WSW
0.4
SW
0.4
SW
0.4
SW
0.2
WSW
0.2
WSW
0.2
WSW
0.2
WSW
0.2
WSW
0.1
SW
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
0.1
W
—
Period(s) (?)99991817161599988888812128877-
Wave
Graph
(?)Metric surfscale
Energy kJ (?)19314811075615450452120197776623311110
Wind
(km/h)
20
S
15
SSE
10
ESE
10
E
10
ENE
5
E
5
E
5
ENE
10
E
10
E
10
E
10
ENE
5
ESE
0
S
0
WNW
5
NE
10
E
10
E
5
E
5
E
5
E
5
W
5
NW
5
NNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		offoffglassglasscross-
off		offoffoffoffcross-
off		glassglassglassoffoffoffoffglassglasscross-
on		glass
High Tide
/ height (m)
7:17PM
3.91
7:31AM
4.39
7:51PM
4.22
8:06AM
4.69
8:26PM
4.47
8:43AM
4.87
Low Tide
/ height (m)
2:12AM
0.45
2:38PM
0.14
2:47AM
0.26
3:13PM
0.00
3:21AM
0.16
3:47PM
-0.01
Wednesday
18
Thursday
19
Friday
20
Sunrise----6:24-------6:22-------6:20---
Sunset-------6:24-------6:25-------6:28
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
Rain (mm)
------------------------
Temp. °C11109911151716131312111214151311109810121311
Feels °C (?)77769131615111110891213119765810119
  • 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 Harlech 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 Harlech at:
surf-forecast.com

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