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Surf Forecasts:

Pontllyfni surfForecast / Wales – Lleyn / UK

information circle12 Day Weather and Surf, issued 6 pm Tuesday 14 Oct 2025 BST
Forecast update in hr  min  s Forecast update imminent
Pontllyfni surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Pontllyfni sea temperature is
14.3° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Pontllyfni this week:

The surf forecast for Pontllyfni over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Oct 19) at 1PM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.2m and 11s. Another secondary swell of 0.2m and 11s is also forecast. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Pontllyfni in the next 12 days are 1.7m 7s and forecast to arrive on Monday (Oct 20) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Monday (Oct 20) at 7AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sun 19th Oct)4ft (1.2m) 6s
Best Surf 1PM (Sun 19th Oct)4ft (1.2m) 6s
Most Powerful 1AM (Mon 20th Oct)5.5ft (1.7m) 7s

Table - best surf conditions forecast for Pontllyfni over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Very mild (max 14°C on Tue afternoon, min 10°C on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 29mm), heaviest during Sun night. Very mild (max 15°C on Sun night, min 11°C on Fri night). Winds increasing (calm on Fri afternoon, strong winds from the SSE by Sun night).

Tue
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.1
W
0.1
W
0.1
W
—
0.1
W
0.1
W
0.1
W
———
0.1
W
0.1
SW
0.4
SW
0.3
SW
1
S
1.5
SSW
1.7
SSW
0.9
SSW
0.8
SW
1.1
SW
0.6
SW
Period(s) (?)141312-141211---88776776455
Wave
Graph
(?)Metric surfscale
Energy kJ (?)4330432000121377821730265255814
Wind
(km/h)
10
NNE
10
NE
5
S
5
NW
5
SE
0
SE
5
WNW
5
ESE
5
SSE
5
W
10
SE
10
SE
15
SSE
15
SE
20
SSE
25
SSE
25
SSW
30
WSW
35
WSW
25
WSW
15
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
off		glassglassglassglassglassglassglassglassoffoffoffoffoffoffcross-
off		crosscrosscrosscross
High Tide
/ height (m)
4:16AM
2.53
4:47PM
2.85
6:04AM
2.62
6:11PM
3.02
7:00AM
2.82
7:03PM
3.24
7:37AM
3.04
7:43PM
3.43
8:10AM
3.25
8:19PM
3.59
8:41AM
3.44
8:52PM
3.69
9:11AM
3.58
Low Tide
/ height (m)
10:46PM
0.93
11:17AM
1.24
12:10AM
0.83
12:34PM
1.07
1:16AM
0.61
1:33PM
0.83
2:06AM
0.41
2:19PM
0.62
2:46AM
0.26
2:58PM
0.46
3:21AM
0.19
3:33PM
0.35
3:52AM
0.19
Tue
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Sunrise--7:41--7:43--7:46--7:48--7:48--7:50--7:52
Sunset6:24--6:22--6:20--6:17--6:15--6:14--6:10--
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
light rain
light rain
rain showers
rain showers
rain showers
rain showers
part cloud
Rain (mm)
--------------1522121-
Temp. °C141112131113131113141213141313141513131313
Feels °C (?)13912131013131012131010111099976810
  • 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 Still cross-shore at Pontllyfni (light winds from the NNE at Caernarfon Airport 6 km from Pontllyfni). 0.1m 13s groundswell from the WSW to make surfable waves.

    1 hour 24 minutes ago Pontllyfni
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<
>
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1 h 24 min ago

19 km/h
NNE
Cross-Shore
Please reload the page to see if there are any updates.

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 Pontllyfni 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 Pontllyfni at:
surf-forecast.com

Information about the Pontllyfni Surf forecast

The above surf forecast table for Pontllyfni provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Pontllyfni can be found by selecting the local surf guide option on the grey menu. Our Pontllyfni surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Pontllyfni) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Pontllyfni may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Lleyn Peninsula? If you are looking for accommodation near Pontllyfni, camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 20 km (12 miles) away. Other places in and around Lleyn Peninsula where you can find information about places to rent, and car hire include Anglesey which is 26 km (16 miles) away, Bangor, Holyhead and Llandudno.

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