Whistling Sands (Porth Oer) Surf Break

Lat Long: 52.84° N 4.73° W

Whistling Sands (Porth Oer) Surf Forecast and Surf Report

Issued: 12 pm 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Whistling Sands (Porth Oer) sea temperature is
17.0°C
1.2° 

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 26 Aug 2026:

  • Most powerful swell: Monday 31 Aug, 1AM (local time) - 6ft (1.9m), 8s period, WSW swell with 447 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 1.9m 8s and forecast to arrive on Monday (Aug 31) at 1AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Sunday (Aug 30) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Mon 31st Aug)6ft (1.9m) 8s

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


The Lowdown

Alright, this is Rusty, and I've gotta level with you. We've got a long look ahead, but the news isn't what we want to hear. The season's throwing us a bit of a curveball, and we're looking at a pretty quiet stretch for the next 16 days. There are no real standout sessions to get excited about.

Let's start with the water. The temperature at Whistling Sands (Porth Oer) is sitting at 63°, which is a touch warmer than normal for this time of year. About a degree and a half above average, so it's a nice little bonus, but it's not going to make up for the lack of decent waves.

We've got a long gap at the start of the period. The first proper surfable swell doesn't really show up until Saturday, August 29th. Even then, the energy is weak (150), with a 5ft swell from the SSW, but the period is a short, choppy 6 seconds. Conditions are clean in the morning with a cross-offshore wind, but the whole thing is a bit of a mushy, low-energy affair. The wind swings onshore in the afternoon, making it even worse.

Sunday, August 30th, is pretty much the same story. A 4ft SSW swell, still short period at 9 seconds, and clean again in the morning. But the wave energy is still weak (176), and all the other sessions are just a mess of onshore winds, cross-chop, and tiny surf.

Now, things get a bit more interesting, but not in a good way. By the start of September, the wind really cranks up. We get a 6ft SW swell on the morning of Tuesday, September 1st, but it's accompanied by a 25 mph cross-shore wind. The combined energy is moderate (306), but it's so messy it's borderline unrideable. This pattern continues through the first week of September with strong winds and poor surf quality.

The only real pulse of size comes way out on Friday, September 4th, with a 10ft SW swell. The energy is strong (1195), but the wind is a near-gale from the WSW at 31 mph. That's a full-on washing machine. For a sheltered spot like Whistling Sands, at that size and with that wind, it's going to be a total blown-out mess. Only for the absolutely hardcore, and even then, only if you're a masochist.

The following week offers a few mornings with a clean offshore breeze, like on Monday, September 8th, but the swell is tiny (2ft) and the energy is weak (33). The last few days of the outlook show a building swell again, hitting 8ft on Thursday, September 10th, but the wind is cross-onshore, the period is short, and it's just not a quality wave.

So, to be blunt, there's nothing on the menu that's worth a special trip. The consistent wind and lack of quality groundswell mean the surf is going to be poor for the entire 16-day window. For a spot that's already inconsistent, this is a pretty normal run of bad luck. It's not good for anything other than maybe a beginner trying to get wet in the smallest of bumps, and even then, the wind is a problem. Hang in there, and keep an eye on the charts. The patterns will shift.

Rusty.

Short Range Forecast

Heavy rain (total 54mm), heaviest during Thu afternoon. Warm (max 22°C on Wed night, min 16°C on Thu afternoon). Winds increasing (light winds from the SE on Thu morning, fresh winds from the SW by Fri night).

Days 4-6 Weather Summary

Heavy rain (total 34mm), heaviest during Sat morning. Very mild (max 17°C on Sat morning, min 14°C on Sun night). Winds increasing (moderate winds from the W on Mon morning, strong winds from the SW by Mon night).

Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
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
8
0.3
SSW
8
0.2
SSW
7
0.2
SSW
7
0.1
SW
12
0.9
SW
5
1.2
NNW
6
0.7
SW
7
1.2
SW
7
0.9
SW
6
1.2
SSW
7
1.3
SW
9
0.9
SW
9
1.9
SW
6
1.9
WSW
8
1.5
SW
9
1.3
SW
8
1.9
SW
6
1.3
SW
7
0.9
SW
7
0.6
SW
6
Wave Graph
Metric surfscale
Energy kJ
17
12
5
6
6
42
81
46
128
70
142
281
132
269
447
349
196
275
169
77
25
Wind (km/h)
15
ESE
10
N
20
E
15
ENE
15
W
25
SW
25
NW
15
SW
30
SW
40
SSE
30
SSW
35
W
30
S
35
SSW
30
W
30
WNW
25
SSW
45
SSW
35
W
30
WSW
25
WNW
Wind State
off
cross-on
cross-off
cross-off
cross-on
cross
on
cross
cross
cross-off
cross-off
cross-on
cross-off
cross-off
cross-on
on
cross-off
cross-off
cross-on
cross-on
cross-on
High Tide
8:28PM3.66m
8:46AM3.48m
8:59PM3.92m
9:16AM3.67m
9:29PM4.12m
9:47AM3.83m
10:01PM4.26m
10:18AM3.93m
10:34PM4.30m
10:52AM3.97m
11:09PM4.25m
11:28AM3.91m
11:47PM4.09m
Low Tide
2:53PM0.72m
3:20AM0.50m
3:26PM0.50m
3:53AM0.30m
3:59PM0.35m
4:26AM0.17m
4:32PM0.27m
4:59AM0.12m
5:04PM0.26m
5:32AM0.17m
5:38PM0.34m
6:05AM0.31m
6:13PM0.48m
part cloud
part cloud
part cloud
light rain
heavy rain
heavy rain
clear
clear
rain showers
mod rain
rain showers
clear
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
mod rain
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:20
6:22
6:24
6:26
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:22
8:20
8:17
8:15
8:13
8:10
8:07
 mm
4
27
20
3
10
6
4
5
2
7
Temp °C
20
21
22
17
16
16
16
18
17
17
17
17
17
16
16
14
16
16
15
17
16
Feels °C
19
19
20
16
15
14
13
15
14
11
13
13
13
11
11
8
10
9
9
11
10
  • 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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