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Surf Forecasts:

Porth Towyn surfForecast / Wales – Lleyn / UK

information circle48hr Weather and Surf, issued 6 pm Saturday 30 Aug 2025 BST
Forecast update in hr  min  s Forecast update imminent
Porth Towyn surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Porth Towyn sea temperature is
17.4° C
 (Which is 1.6°C warmer than normal for this time of year)

How big are the waves at Porth Towyn today?

The current surf forecast for Porth Towyn at 11PM is: 2.5m 8s primary swell from a Southwest direction (forecast issued at 06:00pm August 30). The wind direction is predicted to be cross-shore.

Time (BST) & DateWave HeightWave Period
Morning (30 Aug)--
Afternoon (30 Aug)7ft (2.2m)6s
Evening (30 Aug)10ft (3.0m)8s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Saturday
30
Sunday
31
Monday
01
Tuesday
02
4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.5
SSW
3
SW
3
SW
2.5
SW
3
SW
3
SW
3
SW
3
SW
3.5
SW
3.5
SW
3
SW
3
SW
2.5
SW
2.1
SW
2.1
SW
2.1
SW
2.1
SW
2
SW
1.7
SW
1.5
SW
1.3
SW
1.1
SW
0.8
SW
0.9
SSW
Period(s) (?)788888889998888777777777
Wave
Graph
(?)Metric surfscale
Energy (?)613981103287810281191119012871546173513919847135815034204083792952311921127193
Wind
(km/h)
55
S
50
SW
50
SW
45
SW
45
SSW
45
SSW
50
SSW
55
SSW
55
SSW
55
S
50
S
45
SSW
40
SSW
30
SW
40
WSW
40
SW
35
SW
35
WSW
30
WSW
25
SW
15
SSW
15
S
15
S
10
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscrosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off
High Tide
/ height (m)
1:26PM
2.87
1:49AM
2.78
2:12PM
2.63
2:46AM
2.51
3:31PM
2.44
4:35AM
2.36
Low Tide
/ height (m)
8:15PM
1.16
8:42AM
1.32
9:11PM
1.40
9:48AM
1.51
10:40PM
1.53
11:29AM
1.54
Saturday
30
Sunday
31
Monday
01
Tuesday
02
Sunrise-----6:24-------6:26-------6:28--
Sunset-8:13-------8:09-------8:07------
light rain
clear
clear
clear
clear
part cloud
clear
clear
clear
thunderstorm
light rain
thunderstorm
thunderstorm
light rain
light rain
clear
rain showers
light rain
rain showers
rain showers
clear
part cloud
rain showers
rain showers
Rain (mm)
4--------122211-1211--11
Temp. °C181716151515151616161616151515151616151515151516
Feels °C (?)1097666666778810881010101112131314
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Wales - Lleyn

  1. weather stationWind Update The wind is still cross-off at Porth Towyn (strong winds from the SSW at Caernarfon Airport 29 km from Porth Towyn). A 2.5m swell from the SW

    2 hours 3 minutes ago Porth Towyn
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29 km away, 2 h 3 min ago

41 km/h
SSW
0.0
17.4
Air / Water (°C)
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View detailed surf forecast for Porth Towyn at:
surf-forecast.com

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