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

information circle16 Day Weather and Surf, issued 6 pm Thursday 28 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
12.1° C
(Which is slightly warmer than usual)

Whistling Sands (Porth Oer) surf forecast from 29 May 2026:

  • Most powerful swell: Thursday 4 Jun, 1PM (local time) - 10ft (3.0m), 10s period, SW swell with 1,933 kJ wave energy.

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

The most powerful waves expected at Whistling Sands (Porth Oer) in the next 16 days are 3.0m 10s and forecast to arrive on Thursday (Jun 04) at 1PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Jun 03) at 7AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1PM (Thu 4th Jun)10ft (3.0m) 10s

Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 15°C on Thu afternoon, min 12°C on Thu night). Mainly fresh winds.

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Mon night. Very mild (max 14°C on Tue afternoon, min 12°C on Sun night). Winds increasing (light winds from the ESE on Mon night, fresh winds from the S by Tue night).

Thu
28
Friday
29
Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
SW
16
0.1
SW
16
0.8
SW
5
0.8
SW
5
0.8
SW
5
0.3
WSW
10
0.4
SW
8
1
SW
5
0.6
WSW
12
1.3
SW
5
1.4
SW
6
1
SW
5
0.3
WSW
11
0.2
WSW
10
0.8
SW
7
0.9
SW
9
1.4
SW
6
1.3
SW
6
2
SW
6
3
SW
8
3
SW
9
Wave Graph
Metric surfscale
Energy kJ
10
10
34
34
29
18
18
57
91
74
120
52
22
9
65
138
156
0
305
1342
1430
Wind (km/h)
25
SSW
25
SSW
20
SW
25
SSW
15
S
20
S
15
SSW
25
SSW
15
WSW
25
SSW
30
SSW
20
SW
25
SSW
10
ESE
15
NNW
15
WNW
25
SSW
35
SSW
25
WSW
25
WSW
30
SW
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
off
cross-on
cross-on
cross-off
cross-off
cross-on
cross
cross
High Tide
7:29PM3.45m
7:45AM3.52m
8:07PM3.58m
8:24AM3.57m
8:43PM3.68m
9:02AM3.59m
9:18PM3.73m
9:38AM3.57m
9:54PM3.74m
10:14AM3.51m
10:29PM3.70m
10:49AM3.41m
11:05PM3.64m
11:25AM3.28m
Low Tide
2:24AM0.78m
2:42PM0.68m
3:02AM0.69m
3:17PM0.68m
3:38AM0.62m
3:50PM0.68m
4:14AM0.59m
4:24PM0.70m
4:50AM0.61m
5:00PM0.75m
5:28AM0.67m
5:36PM0.81m
6:09AM0.76m
cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
mod rain
part cloud
part cloud
rain showers
light rain
cloud
light rain
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:03
5:01
5:01
5:00
5:00
4:58
4:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:28
9:29
9:30
9:30
9:32
9:34
9:35
9:36
8
1
2
1
Temp °C
15
15
13
14
14
13
14
14
13
13
13
13
13
13
12
14
14
13
13
13
12
12
10
10
9
10
9
11
10
10
9
8
9
9
11
9
11
11
7
8
8
5
Swell 1
Height (m)
Direction
Period (s)
0.1
SW
16
0.1
SW
16
0.1
SW
15
0.1
SW
15
0.2
WSW
11
0.3
WSW
10
0.4
SW
8
0.4
WSW
12
0.6
WSW
12
0.6
WSW
11
0.4
SW
11
0.3
WSW
11
0.2
WSW
10
0.8
SW
7
0.9
SW
9
Energy kJ
10
10
8
8
11
18
18
57
91
81
30
22
9
65
138
Swell 2
Height (m)
Direction
Period (s)
0.1
S
12
0.1
SW
12
0.1
SW
15
0.1
SW
14
0.2
WSW
14
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
13
0.6
NNW
4
Energy kJ
3
5
9
7
18
8
8
7
7
12
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
16
0.1
SW
16
0.1
SW
14
Energy kJ
9
10
8
Wind waves
Height (m)
Direction
Period (s)
0.6
SSW
3
1
SW
5
0.8
SW
5
0.8
SW
5
0.8
SW
5
0.6
SW
4
0.6
SW
4
1
SW
5
0.8
SW
5
1.3
SW
5
1.4
SW
6
1
SW
5
0.8
SW
5
1.2
SW
5
1.1
NW
5
1.4
SW
6
1.3
SW
6
2
SW
6
3
SW
8
3
SW
9
Energy kJ
7
43
34
34
29
16
10
41
31
74
120
52
32
80
49
156
112
305
1342
1430
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
1
2
2
1
2
1
2
2
4
4
1
Distance (km)
540
308
297
256
130
121
145
71
278
256
250
256
270
4
130
15
256
329
416
250
339
Best forecast wave conditions in Lleyn Peninsula
Rating
(10 max)
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
1
1
1
2
2
2
3
1
3
3
3
2
2
3
2
2
2
1
4
3
Header Global
Rating
(10 max)
7
5
5
5
5
5
7
7
6
6
5
5
5
4
5
5
5
4
5
8
7
  • 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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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 16 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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