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Surf Forecasts:

Whistling Sands (Porth Oer) surfForecast / Wales – Lleyn / UK

information circle12 Day Weather and Surf, issued 5 am Monday 24 Nov 2025 GMT
Forecast update in hr  min  s Forecast update imminent
Whistling Sands (Porth Oer) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Whistling Sands (Porth Oer) sea temperature is
12.8° C
 (Which is 1.3°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Whistling Sands (Porth Oer) this week:

The most powerful waves expected at Whistling Sands (Porth Oer) in the next 12 days are 2.5m 7s and forecast to arrive on Monday (Dec 01) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Monday (Nov 24) at 3PM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 3AM (Mon 1st Dec)8ft (2.5m) 7s

Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 12 days.

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

Short Range Forecast Moderate rain (total 17mm), heaviest on Wed afternoon. Very mild (max 13°C on Wed night, min 8°C on Tue afternoon). Winds decreasing (near gales from the NNE on Mon morning, calm by Tue night).

Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Thu morning. Very mild (max 13°C on Thu morning, min 9°C on Fri night). Winds decreasing (near gales from the SW on Fri afternoon, moderate winds from the WNW by Sat afternoon).

Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
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 (?)
1.1
SW
0.6
WSW
0.3
SW
1.5
NNW
0.9
NNW
0.4
SW
1
SSW
2
SSW
1.3
SW
1.8
SW
2.1
SW
2.2
WSW
2.3
SW
2.3
SW
1.5
WSW
1.2
SW
1
SW
1.3
NNW
0.4
SW
0.5
SW
2.5
SW
Period(s) (?)98865104666777778867106
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1894510135392703191452313844994955142491691101081849528
Wind
(km/h)
55
NNE
50
N
40
N
25
N
20
N
10
SSE
40
S
45
S
15
SW
35
S
40
SW
40
WSW
45
SW
60
SW
35
WSW
35
W
25
WNW
35
NNW
25
NNW
20
WNW
35
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
off		cross-
off		cross-
off		crosscross-
off		crosscrosscrosscrosscross-
on		cross-
on		cross-
on		oncross-
on		oncross-
off
High Tide
/ height (m)
10:11AM
3.62
10:30PM
3.27
10:49AM
3.49
11:10PM
3.10
11:32AM
3.36
11:57PM
2.94
12:23PM
3.25
12:57AM
2.83
1:25PM
3.18
2:11AM
2.81
2:37PM
3.21
3:28AM
2.95
3:48PM
3.36
Low Tide
/ height (m)
5:14PM
0.84
5:20AM
0.99
6:00PM
0.98
6:05AM
1.13
6:52PM
1.09
6:57AM
1.25
7:50PM
1.13
7:57AM
1.32
8:53PM
1.08
9:05AM
1.31
9:56PM
0.95
10:13AM
1.20
10:58PM
0.76
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Sunrise7:56--7:58--7:58--8:00--8:03--8:03--8:06--
Sunset-4:13--4:12--4:10--4:09--4:08--4:07--4:07-
rain showers
part cloud
rain showers
rain showers
clear
part cloud
light rain
mod rain
cloud
light rain
light rain
part cloud
rain showers
thunderstorm
part cloud
clear
rain showers
part cloud
cloud
part cloud
light rain
Rain (mm)
1-31--48-41-22--1---5
Temp. °C10101099991213131311111110910109810
Feels °C (?)-1-1023409107621-1113223-1
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

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View detailed surf forecast for Whistling Sands (Porth Oer) at:
surf-forecast.com

Information about the Whistling Sands (Porth Oer) Surf forecast

The above surf forecast table for Whistling Sands (Porth Oer) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Whistling Sands (Porth Oer) can be found by selecting the local surf guide option on the grey menu. Our Whistling Sands (Porth Oer) 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 (Whistling Sands (Porth Oer)) 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 Whistling Sands (Porth Oer) 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 Whistling Sands (Porth Oer), camping, hotels and holiday cottages in Lleyn Peninsula, consider staying in Porthmadog which is 41 km (25 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 48 km (30 miles) away, Holyhead, Bangor and Aberystwyth.

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