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

information circle12 Day Weather and Surf, issued 5 pm Wednesday 25 Feb 2026 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
8.3° C
(Which is slightly warmer than usual)

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

The surf forecast for Whistling Sands (Porth Oer) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Feb 28) at 9AM. The primary swell is predicted to be 0.7m and 9s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Whistling Sands (Porth Oer) in the next 12 days are 3.0m 8s and forecast to arrive on Thursday (Feb 26) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Sunday (Mar 01) at 9AM.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Sat 28th Feb)2.5ft (0.7m) 9s
Best Surf 9AM (Sat 28th Feb)2.5ft (0.7m) 9s
Most Powerful 6PM (Thu 26th Feb)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

Short Range Forecast Heavy rain (total 27mm), heaviest during Thu night. Very mild (max 10°C on Wed afternoon, min 7°C on Thu night). Winds decreasing (strong winds from the SSW on Thu afternoon, calm by Sat morning).

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Sun night. Very mild (max 10°C on Sun afternoon, min 7°C on Sun night). Winds decreasing (near gales from the S on Sun night, light winds from the W by Mon night).

Wed
25
Thursday
26
Friday
27
Saturday
28
Sunday
01
Monday
02
Tuesday
03
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.7
WSW
0.9
WSW
1.9
SW
2.5
SW
1.9
SW
1.1
SW
1.1
SW
0.9
SW
0.7
SW
0.7
SW
0.6
SW
0.2
WSW
0.2
WSW
2
SSW
2.2
SW
1.4
SW
1.1
SW
0.8
SW
0.2
WSW
2.5
SW
1.9
WSW
Period(s) (?)181567899999812117810981376
Wave
Graph
(?)Metric surfscale
Energy kJ (?)27636727870850521718813881793815133926473651998217716257
Wind
(km/h)
30
SSW
40
SW
45
SSW
50
SSW
25
SSW
25
NW
15
NNW
15
NNE
5
E
20
SSE
35
SSE
40
SSE
50
SSE
50
S
25
SW
25
SW
20
WNW
20
SSW
35
SSW
45
SSW
35
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
ononcross-
on
glasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscrosscross-
on
cross-
off
cross-
off
cross-
off
cross
High Tide
/ height (m)
2:43AM
2.99
3:35PM
2.91
4:17AM
3.03
5:07PM
3.00
5:36AM
3.31
6:14PM
3.25
6:35AM
3.67
7:05PM
3.52
7:22AM
4.01
7:48PM
3.75
8:03AM
4.26
8:26PM
3.92
8:41AM
4.40
Low Tide
/ height (m)
9:21PM
1.32
10:16AM
1.23
11:04PM
1.29
11:50AM
1.01
12:21AM
1.03
12:57PM
0.65
1:17AM
0.71
1:48PM
0.31
2:02AM
0.43
2:31PM
0.06
2:41AM
0.23
3:09PM
-0.07
3:17AM
0.13
Wed
25
Thursday
26
Friday
27
Saturday
28
Sunday
01
Monday
02
Tuesday
03
Sunrise--7:13--7:11--7:09--7:07--7:03--7:01--7:00
Sunset5:49--5:50--5:52--5:53--5:55--5:58--6:00--
light rain
cloud
light rain
light rain
heavy rain
cloud
cloud
part cloud
clear
part cloud
cloud
cloud
cloud
light rain
part cloud
part cloud
clear
part cloud
clear
part cloud
cloud
Rain (mm)
5-1417--------2-------
Temp. °C109999888798810108988889
Feels °C (?)410-12345531-1102421-1-22
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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