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

information circle16 Day Weather and Surf, issued 12 am Saturday 30 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
12.6° C
(Which is 1.0°C warmer than normal for this time of year)

Whistling Sands (Porth Oer) surf forecast from 30 May 2026:

  • Most powerful swell: Thursday 4 Jun, 4AM (local time) - 8ft (2.5m), 7s period, WSW swell with 603 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 2.5m 7s and forecast to arrive on Thursday (Jun 04) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Wednesday (Jun 03) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Thu 4th Jun)8ft (2.5m) 7s

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

Moderate rain (total 12mm), heaviest on Mon afternoon. Very mild (max 14°C on Fri night, min 12°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Moderate rain (total 14mm), heaviest on Mon night. Very mild (max 15°C on Tue night, min 11°C on Wed night). Winds increasing (light winds from the NW on Tue afternoon, strong winds from the SW by Wed afternoon).

Saturday
30
Sunday
31
Monday
1
Tuesday
2
Wednesday
3
Thursday
4
Friday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
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
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SW
10
0.2
WSW
14
0.4
WSW
12
0.6
WSW
12
0.9
SW
11
0.5
SW
11
0.4
SW
11
0.4
SW
11
0.2
WSW
10
0.8
SW
6
0.8
SW
7
1.1
SW
9
0.6
WSW
8
1.9
SW
6
2.3
SW
7
2.4
WSW
7
2
SW
8
1.6
SW
7
0.8
SW
7
0.6
SW
7
0.4
SW
7
Wave Graph
Metric surfscale
Energy kJ
23
19
58
91
189
60
30
29
9
56
73
168
40
275
514
595
465
262
71
30
11
Wind (km/h)
20
S
15
SSW
25
SSW
15
W
25
SSW
25
SW
30
S
20
S
20
SSW
15
W
15
WNW
10
WSW
35
S
35
SSW
40
WSW
25
SW
25
SSW
50
SE
55
SSW
45
SSW
35
SW
cross-off
cross-off
cross-off
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
on
cross-on
cross-off
cross-off
cross-on
cross
cross-off
off
cross-off
cross-off
cross
High Tide
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
11:43PM3.55m
12:03PM3.14m
00:23AM3.45m
Low Tide
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
6:15PM0.90m
6:52AM0.87m
6:55PM1.01m
cloud
part cloud
rain showers
part cloud
clear
rain showers
light rain
light rain
heavy rain
cloud
cloud
part cloud
light rain
part cloud
part cloud
cloud
cloud
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:01
5:01
5:00
5:00
4:58
4:58
4:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:30
9:30
9:32
9:34
9:35
9:36
9:37
2
2
3
5
11
3
8
Temp °C
13
14
13
13
14
14
13
14
13
13
14
15
13
13
13
12
13
14
12
13
13
10
11
9
10
10
10
9
11
10
11
11
14
6
6
5
6
8
5
0
4
4
Swell 1
Height (m)
Direction
Period (s)
0.4
SW
10
0.3
WSW
8
0.4
WSW
12
0.7
SW
5
0.5
SW
11
0.4
SW
11
0.4
SW
11
0.2
WSW
10
0.8
SW
6
0.3
NW
4
1.1
SW
9
0.6
WSW
8
0.4
WSW
12
0.8
SW
7
0.6
SW
7
0.4
SW
7
Energy kJ
23
14
58
29
60
30
29
9
56
3
168
40
57
71
30
11
Swell 2
Height (m)
Direction
Period (s)
0.1
SW
14
0.2
WSW
14
0.6
WSW
12
0.1
SW
14
0.1
SW
14
0.1
SW
14
0.1
SW
13
0.1
SW
13
0.2
WSW
13
0.2
WSW
13
0.1
SW
13
Energy kJ
7
19
91
8
8
7
7
7
17
17
7
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
16
0.1
W
14
0.1
SW
13
Energy kJ
10
4
7
Wind waves
Height (m)
Direction
Period (s)
0.6
SW
4
0.6
SW
4
1.1
SW
5
0.9
SW
11
0.9
SW
5
1
SSW
5
1.1
SSW
5
1.2
SW
6
0.8
SW
7
1.2
SSW
5
1.9
SW
6
2.3
SW
7
2.4
WSW
7
2
SW
8
1.6
SW
7
0.3
N
2
0.5
ENE
3
Energy kJ
11
10
49
189
40
46
57
88
73
66
275
514
595
465
262
1
6
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
2
2
1
1
1
1
1
2
5
4
4
2
3
1
2
Distance (km)
139
15
71
15
312
71
161
139
229
15
15
15
207
329
467
256
139
398
467
398
256
Best forecast wave conditions in Lleyn Peninsula
Rating
(10 max)
1
1
1
1
1
Best forecast wave conditions in United Kingdom
Rating
(10 max)
2
2
3
2
2
3
2
2
2
2
1
2
2
2
1
5
4
4
4
4
Header Global
Rating
(10 max)
5
7
7
6
5
5
4
4
4
7
4
6
5
5
5
4
8
4
9
5
6
  • 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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