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:

Llandanwg surfForecast / Wales – Mid / UK

information circle12 Day Weather and Surf, issued 5 am Friday 21 Nov 2025 GMT
Forecast update in hr  min  s Forecast update imminent
Llandanwg surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Llandanwg sea temperature is
11.3° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Llandanwg this week:

The surf forecast for Llandanwg over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Nov 22) at 9AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.8m and 4s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Llandanwg in the next 12 days are 3.0m 10s and forecast to arrive on Sunday (Nov 23) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Monday (Nov 24) at 3PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sat 22nd Nov)3.5ft (1.1m) 7s
Best Surf 9AM (Sat 22nd Nov)3.5ft (1.1m) 7s
Most Powerful 3PM (Sun 23rd Nov)10ft (3.0m) 10s

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

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

Short Range Forecast Heavy rain (total 41mm), heaviest during Fri night. Very mild (max 11°C on Sat night, min 4°C on Fri morning). Winds increasing (calm on Fri morning, near gales from the WSW by Sun night).

Days 3-6 Weather Summary Mostly dry. Very mild (max 10°C on Wed afternoon, min 5°C on Tue night). Winds decreasing (fresh winds from the NNE on Mon morning, calm by Tue night).

Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
1
0
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 (?)
0.2
WNW
0.1
W
1.4
SW
1.1
WSW
0.6
WSW
0.8
SSW
2
WSW
3
WSW
1.1
WSW
0.7
WSW
0.4
SW
0.2
WSW
0.1
W
0.1
W
0.1
W
0.1
SW
1.1
SW
1
WSW
1.1
WSW
1.1
SW
1.4
SW
Period(s) (?)41167747108888111212957667
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1212010832184141465164611762333638510488163
Wind
(km/h)
5
ESE
20
SSW
35
SSW
10
NNE
10
WSW
30
SSW
40
W
45
WSW
45
W
30
NNE
30
NNE
20
N
15
N
15
N
5
E
10
SSW
15
SW
20
SW
20
SSW
25
SW
25
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glassoncross-
on		cross-
off		oncross-
on		cross-
on		cross-
on		cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		glasscross-
on		ononononcross-
on
High Tide
/ height (m)
8:36PM
3.99
8:51AM
4.11
9:09PM
3.89
9:24AM
4.04
9:43PM
3.74
10:00AM
3.92
10:19PM
3.57
10:38AM
3.77
10:59PM
3.37
11:21AM
3.61
11:45PM
3.18
12:11PM
3.46
12:43AM
3.03
Low Tide
/ height (m)
3:11PM
0.66
3:21AM
0.79
3:47PM
0.73
3:55AM
0.89
4:27PM
0.85
4:32AM
1.01
5:10PM
1.00
5:13AM
1.15
5:59PM
1.13
5:59AM
1.28
6:52PM
1.23
6:54AM
1.38
7:50PM
1.24
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Sunrise7:48--7:50--7:52--7:54--7:54--7:56--7:58--
Sunset-4:14--4:13--4:12--4:10--4:09--4:08--4:07-
part cloud
cloud
heavy rain
rain showers
part cloud
rain showers
rain showers
clear
mod rain
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
cloud
light rain
Rain (mm)
--172-123-7-----------3
Temp. °C678991189899888691010111211
Feels °C (?)320665-1-1-3223333566686
  • 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

Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.
Ben Mondy

Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

Feel that? If you are in the northern hemisphere, you will have had that first bite of winter. The lick of a frost, the chill of a cold offshore breeze and the sound of winter swells pounding the shores. If you are near the mountains, your favourite jackets, gloves, and footwear might get dusted off and prepped for battle. And in that beautiful Venn diagram, you will find PrimaLoft. They have spent over 40 years developing innovative insulations that have powered your warmest winter gear. In t

Read more

Read more

Discover more articles and updates in the Greenroom.

submit an eyeball surf report

Quick surf report for Llandanwg:

join our community of surf reporters

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 Llandanwg 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 Llandanwg at:
surf-forecast.com

Information about the Llandanwg Surf forecast

The above surf forecast table for Llandanwg provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Llandanwg can be found by selecting the local surf guide option on the grey menu. Our Llandanwg 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 (Llandanwg) 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 Llandanwg 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.

Llandanwg is 10 km (6 miles) from Porthmadog. If you plan a holiday in Mid Wales, look for hotels and other accommodation in Porthmadog. Porthmadog has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest