Whistling Sands (Porth Oer) Surf Break

Lat Long: 52.84° N 4.73° W

Whistling Sands (Porth Oer) Surf Forecast and Surf Report

Issued: 6 am 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Whistling Sands (Porth Oer) sea temperature is
15.6° C
0.8° 

Whistling Sands (Porth Oer) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Whistling Sands (Porth Oer) surf forecast from 10 Jul 2026:

  • Most powerful swell: Saturday 11 Jul, 4AM (local time) - 3.5ft (1.0m), 5s period, N swell with 55 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 1.0m 5s and forecast to arrive on Saturday (Jul 11) 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 0.9m 6s period and expected on Saturday (Jul 11) at 7AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 4AM (Sat 11th Jul)3.5ft (1.0m) 5s

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


Alright, Rusty here. Let’s be straight with you – this is a tough one for the next couple of weeks. We’re looking at Whistling Sands (Porth Oer) and to be honest, the surf forecast is a bit of a heartbreaker.

Right through the period, the swell is tiny and weak. The combined energy of all swells directed here is very low, often just single-digit values like 5 (moderate wave energy). We’re dealing with a lot of poor surf conditions, and the wind is rarely on our side. The water temp is sitting at 60°F which is about normal for the time of year, so at least you won't be freezing while you're sitting there waiting for a wave that never comes.

We start off with nothing. Friday the 10th through to the 20th is a long, dry spell. The swell is pretty much non-existent, with heights barely cracking 2 ft. The wind is mostly cross-onshore or onshore, making it choppy and messy. There’s a brief moment on Sunday the 12th morning with a clean cross-offshore breeze, but with swell from the NE at just 1 ft and a period of 3 seconds, it’s barely a ripple. You’d be better off going for a swim.

There’s a slight flicker of hope on the 20th, with a little more size, but still poor surf conditions. The first real standout, if you can call it that, arrives on Saturday the 25th. The morning sees a 4 ft swell from the WSW, with a period of 7 seconds, and the combined energy jumps to 146 (moderate). That’s the biggest we’ll see, but the wind is a cross-onshore from the WNW at 16 mph, making it choppy. It’s not great, but it’s the best on offer. This is a sheltered spot, and it’s inconsistent, so don’t expect much.

The afternoon of the 25th cleans up nicely with a cross-offshore wind from the SSW, but the swell drops right back to 1 ft. Typical.

The real gem might be the morning of Wednesday the 22nd. We’ve got glassy conditions with a 2 ft swell from the SW and a period of 6 seconds. The combined energy is 33 (moderate). The wind is basically nothing, a slight air from the WSW. That’s the cleanest window we get. It’s small, but it’ll be the most fun you’ll have on a longboard. The afternoon of the 22nd is also glassy, but the swell drops to 1 ft. Crowds are possible here, but with this lack of surf, it might be just you and the seagulls.

So, the outlook is bleak for the first week and a half. The second week offers a couple of tiny windows, but nothing special. The 25th morning has the most size, but it’s messy. The 22nd morning has the best conditions. If you’re desperate, that’s your window. Otherwise, keep the board in the van and wait for the next system.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 27°C on Sat night, min 15°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 28°C on Wed afternoon, min 16°C on Mon morning). Mainly fresh winds.

Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
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)
0.1
W
11
0.5
N
3
0.9
N
4
0.1
W
8
0.6
NNW
5
0.1
W
7
0.4
NE
3
0.4
NNE
5
0.4
N
5
0.3
NNE
4
0.1
W
19
0.1
SW
15
0.1
SW
18
0.3
N
4
0.2
SSW
7
0.1
SW
16
0.1
SW
16
0.1
SW
13
0.1
SW
14
0.1
SW
14
0.1
SW
12
Wave Graph
Metric surfscale
Energy kJ
2
5
30
1
20
1
3
10
0
3
7
8
12
3
7
10
10
7
8
8
6
Wind (km/h)
15
N
20
NNW
30
N
10
NNW
20
NNW
15
E
15
NE
20
NNE
20
ENE
15
NE
20
NNE
20
ENE
20
NE
20
NE
20
ESE
10
NE
15
NNE
20
ESE
10
ENE
20
NNW
10
NE
Wind State
cross-on
cross-on
cross-on
on
on
cross-off
cross-off
cross
cross-off
cross
cross-on
cross-off
cross
cross
cross-off
cross-off
cross
cross-off
cross-off
cross-on
cross
High Tide
5:14PM3.21m
5:44AM3.39m
6:20PM3.41m
6:49AM3.55m
7:19PM3.69m
7:48AM3.73m
8:13PM3.98m
8:41AM3.88m
9:03PM4.23m
9:31AM3.97m
9:51PM4.40m
10:19AM3.97m
10:38PM4.46m
Low Tide
11:37AM0.96m
00:10AM1.06m
12:52PM0.86m
1:26AM0.82m
1:58PM0.68m
2:30AM0.51m
2:55PM0.48m
3:26AM0.22m
3:45PM0.31m
4:17AM-0.00m
4:32PM0.20m
5:05AM-0.11m
5:16PM0.18m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
clear
clear
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:07
5:07
5:09
5:09
5:11
5:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:40
9:39
9:39
9:38
9:37
9:37
9:36
 mm
Temp °C
22
22
22
22
26
27
22
26
24
20
24
25
22
26
26
22
28
26
23
26
24
Feels °C
20
19
18
21
23
23
21
23
19
19
20
20
20
22
20
21
24
21
22
22
20
  • 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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