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Surf Forecasts:

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

information circle12 Day Weather and Surf, issued 12 am Tuesday 16 Sep 2025 BST
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
16.6° C
 (Which is 1.2°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 3.0m 8s and forecast to arrive on Wednesday (Sep 17) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Monday (Sep 22) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7AM (Wed 17th Sep)10ft (3.0m) 8s

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 Tue night. Very mild (max 17°C on Wed morning, min 13°C on Mon night). Winds decreasing (near gales from the W on Mon night, moderate winds from the WSW by Tue afternoon).

Days 3-6 Weather Summary Heavy rain (total 27mm), heaviest during Fri night. Very mild (max 17°C on Fri afternoon, min 10°C on Sun morning). Mainly near gales.

Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
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 (?)
3
W
2
W
1.1
SW
1.3
SW
3
SW
2.4
SW
1.8
SW
2.2
SW
2.5
SW
2.3
SW
1.6
SW
1.1
SW
1.1
SW
1
SW
0.8
SW
0.4
SW
0.3
SW
1.5
NNW
0.1
SW
0.1
SW
1.3
NNW
Period(s) (?)76758967777995588613136
Wave
Graph
(?)Metric surfscale
Energy (?)793311163010298582634407405142481832169066261816298116
Wind
(km/h)
50
W
35
W
25
WSW
35
S
45
SW
40
SW
30
SW
45
SSW
45
SSW
40
S
35
SSW
30
SSW
30
SW
40
SW
30
SW
20
SW
60
N
40
NNE
35
NNE
25
NNE
35
N
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		crosscross-
off		crosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscrosscross-
on		crosscrosscross-
on		cross-
on
High Tide
/ height (m)
3:46AM
2.82
4:27PM
2.96
5:29AM
2.83
5:58PM
3.15
6:43AM
3.04
7:00PM
3.45
7:32AM
3.30
7:45PM
3.75
8:11AM
3.54
8:24PM
3.99
8:46AM
3.74
8:59PM
4.15
9:19AM
3.88
Low Tide
/ height (m)
10:29PM
1.17
11:12AM
1.36
12:04AM
1.06
12:36PM
1.18
1:16AM
0.78
1:36PM
0.90
2:09AM
0.50
2:22PM
0.64
2:51AM
0.29
3:01PM
0.45
3:27AM
0.16
3:35PM
0.32
3:59AM
0.12
4:05PM
0.27
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Mon
22
Sunrise-6:52--6:54--6:56--6:58--7:00--7:01--7:03-
Sunset--7:32--7:30--7:28--7:25--7:22--7:21--7:17
clear
clear
cloud
heavy rain
cloud
cloud
part cloud
cloud
part cloud
cloud
light rain
light rain
rain showers
rain showers
rain showers
rain showers
light rain
light rain
rain showers
clear
part cloud
Rain (mm)
---17------259115221--
Temp. °C141415161715161617161617161515141112131212
Feels °C (?)49991199911101113127811-12454
  • 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-on at Whistling Sands (Porth Oer) (near gales from the W at Aberdaron 6 km from Whistling Sands (Porth Oer)). A 2.5m swell from the WSW

    1 hour 2 minutes ago Whistling Sands (Porth Oer)
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<
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1 h 2 min ago

56 km/h
W
Cross-On
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 Whistling Sands (Porth Oer) 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 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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