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

information circle48hr Weather and Surf, issued 6 pm Monday 11 May 2026 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
11.0° C
(Which is slightly warmer than usual)

How big are the waves at Whistling Sands (Porth Oer) today?

The current surf forecast for Whistling Sands (Porth Oer) at 1AM is: 0.2m 8s primary swell from a South-southwest direction (forecast issued at 06:00pm May 11). An open ocean swell of 0.3m 4s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (12 May)0.5ft (0.2m)9s
Afternoon (12 May)3ft (0.9m)5s
Evening (12 May)3.5ft (1.0m)4s

Table - waves today at Whistling Sands (Porth Oer). (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Tue night. Very mild (max 12°C on Tue afternoon, min 8°C on Mon night). Winds increasing (light winds from the WNW on Mon night, near gales from the NW by Wed night).

Mon
11
Tuesday
12
Wednesday
13
Thu
14
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
1
NNW
5
0.7
NNW
5
0.5
N
5
0.2
SSW
8
0.2
SSW
9
0.1
W
19
0.7
WNW
4
0.9
NW
4
1
NNW
5
0.1
SW
18
1
NW
4
1.4
WNW
5
1.8
WNW
6
2.2
WNW
6
2.4
WNW
7
1.9
NW
7
0.9
SW
7
1.7
NNW
6
0.4
SW
7
0.3
SW
7
0.1
SW
16
0.1
SW
16
0.1
SW
15
0.1
SW
15
Wave Graph
Metric surfscale
Energy kJ
60
26
11
7
7
7
11
28
54
12
28
80
209
377
486
315
69
197
11
10
10
10
9
8
Wind (km/h)
25
N
20
N
10
N
10
WNW
15
WSW
20
WNW
25
W
25
NW
15
SW
20
SW
30
WNW
40
W
40
WNW
50
WNW
45
WNW
40
NW
35
NW
40
NW
50
NW
50
NW
50
NW
50
NNW
45
NNW
35
NNW
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross
cross
cross-on
cross-on
cross-on
on
on
on
on
on
on
on
on
on
on
on
High Tide
4:46PM2.75m
5:05AM3.16m
5:47PM3.03m
6:00AM3.43m
6:36PM3.35m
6:49AM3.73m
Low Tide
11:24PM1.29m
12:08PM0.91m
00:24AM1.09m
1:00PM0.65m
1:17AM0.83m
clear
clear
cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
light rain
light rain
part cloud
part cloud
cloud
clear
part cloud
cloud
cloud
cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:26
5:24
5:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:01
9:04
9:05
9:07
1
1
Temp °C
9
9
9
8
9
9
9
10
11
12
11
9
10
9
9
10
10
11
10
9
9
9
9
9
2
3
5
5
5
4
3
4
7
7
4
0
0
-2
-2
1
2
2
-1
-2
-2
-2
-1
0
Swell 1
Height (m)
Direction
Period (s)
0.1
SW
8
0.1
SW
8
0.1
SW
8
0.3
NNW
4
0.2
N
4
0.2
SSW
9
0.2
SSW
9
0.3
WSW
4
0.3
WSW
4
0.8
NNW
5
0.2
SSW
8
0.2
SSW
8
0.2
SSW
8
0.1
SW
17
0.1
SW
16
0.9
SW
7
0.9
SW
7
0.7
SW
7
0.4
SW
7
0.3
SW
7
0.1
SW
16
0.1
SW
16
0.1
SW
15
0.1
SW
15
Energy kJ
3
3
3
4
1
7
7
3
3
31
7
6
6
12
11
69
69
50
11
7
10
10
9
8
Swell 2
Height (m)
Direction
Period (s)
0.2
SSW
8
0.2
SSW
9
0.2
SSW
8
0.2
SSW
8
0.2
SSW
8
0.1
SW
18
0.1
SW
18
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
16
0.1
SW
15
0.1
SW
15
Energy kJ
7
7
7
7
7
12
12
10
10
10
10
10
9
8
Swell 3
Height (m)
Direction
Period (s)
0.1
W
19
0.1
W
18
0.1
SW
18
0.1
SW
18
Energy kJ
7
6
12
12
Wind waves
Height (m)
Direction
Period (s)
1
NNW
5
0.7
NNW
5
0.5
N
5
0.5
NW
3
0.7
WNW
4
0.9
NW
4
1
NNW
5
0.2
WSW
4
1
NW
4
1.4
WNW
5
1.8
WNW
6
2.2
WNW
6
2.4
WNW
7
1.9
NW
7
1.5
NNW
6
1.7
NNW
6
2
NNW
6
2.4
NNW
7
2.5
NNW
7
2.5
NNW
7
2.4
NNW
7
2.2
NNW
7
Energy kJ
60
26
11
4
11
28
54
1
28
80
209
377
486
315
176
197
305
495
645
645
525
458
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
1
1
1
1
1
1
1
1
1
1
1
2
4
2
1
1
1
2
1
1
1
Distance (km)
325
316
288
189
179
189
318
427
324
323
323
314
323
328
649
629
649
798
578
578
578
889
1026
297
Best forecast wave conditions in Lleyn Peninsula
Rating
(10 max)
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
3
3
2
2
2
1
1
1
2
4
4
4
4
2
4
2
4
4
Header Global
Rating
(10 max)
5
5
9
9
9
5
5
6
9
9
9
8
5
8
8
6
6
9
9
8
9
5
5
5
  • 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

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