
Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 2 Sep 2026:
- Most powerful swell: Thursday 10 Sep, 1AM (local time) - 8ft (2.5m), 7s period, SW swell with 576 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 (Sep 10) at 1AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Sunday (Sep 06) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Thu 10th Sep) | 8ft (2.5m) 7s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for the next couple of weeks. Straight up, I gotta be honest with you – this is a tough stretch. We’re looking at Whistling Sands (Porth Oer), and honestly, the surf window is pretty much shut for a good while. The overall pattern is just not delivering any kind of decent wave for paddle surfing. There’s a real gap here, with no worthwhile surf on offer at all from the start right through the whole period. It’s a blank run, and for this sheltered little spot, that’s not unusual when the swell and wind don’t line up.
We kick off on Wednesday the 2nd of September. We’ve got a 5ft swell coming from the SW, but the period is a short, crumbly 6 seconds and the combined energy is weak at 178. The wind is a fresh cross-shore, but it’s just making a mess – lumpy cross-chop. The water’s a touch warmer than normal at 62°. Not a thing to get excited about.
Thursday the 3rd is more of the same misery. A bit smaller in the morning at 4ft, but the wind stays cross and fresh, so the surface is rough. Thursday afternoon sees the swell bump up to 6ft, but with a strong cross-shore and a combined energy of 231, it’s just a messy, blown-out crumble. Not for us.
Friday the 4th is a write-off with strong cross-onshore wind and a short period. The weekend doesn’t save us either. Saturday the 5th drops right down to 2ft. The afternoon has a light cross-off breeze, making it clean, but there’s no push – only 37 combined energy. It’s tiny and weak.
Sunday the 6th has a weird one. The morning shows a tiny 0.3ft swell with a very long 13-second period and fresh offshore wind, but the combined energy is just 10 – so clean but absolutely flat. The afternoon picks up a bit to 4ft from the SSW, and the wind is clean cross-off, so that’s the *only* session in the whole run that would even be worth paddling out for. It’s not great, but it’s all we’ve got. After that, we are back into a long stretch of nothing.
Monday the 7th is getting blown to bits by a near-gale cross-shore. Tuesday the 8th has a bigger 7ft swell from the W, but with a short 6-second period and a strong cross-onshore wind, it’s just a washing machine. Wednesday and Thursday are more of the same – messy, lumpy, and cross-onshore. By the end of the first week and into the second, the swell just collapses. From Sunday the 12th onward, we’re looking at waves under 2ft for days, with very little energy – mostly single and double-digit figures for combined energy. There’s a bit of clean wind here and there, like on the 16th with a light offshore, but the swell is only 0.7ft. Not surfable.
The best on offer? There isn’t a standout, but if you were really desperate, the Sunday the 6th afternoon session is the only one that’s clean and has a pulse. It’s a small 4ft SSW swell with a clean cross-off breeze. Not a classic, but it’s the only window where you might catch a few grovelly ones. Otherwise, the rest is a hard pass. For beginners, anything over 5ft is a handful here, but that doesn’t matter because the quality is so poor. The only thing that might look interesting is when the wind and swell pick up on the 7th and 8th – that’s kite-surfing territory, not for a paddle board. Keep the boards in the car for now, folks. Forecasts can change, but this one is a long, quiet one.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Thu night. Very mild (max 18°C on Wed night, min 13°C on Sat morning). Winds decreasing (strong winds from the SW on Thu afternoon, light winds from the WSW by Sat morning). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Mon afternoon. Warm (max 21°C on Sun afternoon, min 13°C on Mon night). Winds increasing (light winds from the SSW on Sat afternoon, near gales from the SW by Mon afternoon). | |||||||||||||||||||
Wed 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | SW 6 | SW 7 | SW 7 | SW 6 | SW 7 | WSW 5 | SW 5 | SW 7 | SW 6 | SW 6 | SW 13 | SW 13 | SSW 6 | SW 6 | SW 4 | SW 6 | WSW 7 | W 6 | WSW 6 | W 6 |
Wave Graph | ||||||||||||||||||||
178 | 308 | 167 | 231 | 189 | 123 | 102 | 73 | 32 | 23 | 7 | 7 | 131 | 52 | 58 | 196 | 423 | 285 | 167 | 178 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | off | cross-off | cross-off | cross-on | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 00:30AM3.83m | 12:53PM3.53m | 1:20AM3.49m | 1:48PM3.26m | 2:25AM3.15m | 3:02PM3.03m | 3:52AM2.93m | 4:36PM3.02m | 5:28AM2.98m | 6:01PM3.28m | 6:41AM3.22m | 7:03PM3.65m | ||||||||
Low Tide | 6:51PM0.67m | 7:22AM0.79m | 7:39PM0.91m | 8:16AM1.08m | 8:50PM1.14m | 9:38AM1.30m | 10:31PM1.24m | 11:19AM1.31m | 00:09AM1.06m | 12:42PM1.09m | 1:21AM0.71m | 1:43PM0.77m | 2:16AM0.35m | |||||||
— | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | |
8:06 | — | — | 8:04 | — | — | 8:00 | — | — | 7:59 | — | — | 7:57 | — | — | 7:53 | — | — | 7:52 | — | |
mm | — | — | — | 1 | 9 | — | — | — | — | — | — | — | — | 1 | — | 2 | — | — | — | — |
Temp °C | 17 | 18 | 17 | 17 | 16 | 15 | 17 | 16 | 14 | 15 | 16 | 19 | 21 | 17 | 15 | 16 | 14 | 15 | 16 | 15 |
Feels °C | 12 | 14 | 12 | 11 | 12 | 8 | 11 | 10 | 11 | 12 | 11 | 13 | 16 | 13 | 10 | 7 | 5 | 7 | 8 | 7 |
Swell 1 Height (m) Direction Period (s) | — | — | SW 14 | — | SW 14 | SW 14 | NW 5 | SW 7 | SW 6 | NNW 4 | WSW 6 | SW 13 | SW 13 | SW 6 | NW 4 | — | — | — | — | — |
— | — | 8 | — | 8 | 8 | 12 | 73 | 32 | 4 | 4 | 7 | 6 | 52 | 5 | — | — | — | — | — | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 14 | NNW 5 | SW 13 | SW 13 | W 13 | — | SW 12 | WSW 13 | — | — | — | — | — |
— | — | — | — | — | — | — | 8 | 14 | 7 | 7 | 3 | — | 6 | 17 | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 14 | SW 13 | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | 7 | 7 | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 7 | SW 7 | SW 6 | SW 7 | WSW 5 | SW 5 | NW 5 | — | SW 6 | SSW 4 | S 5 | SSW 6 | WNW 3 | SW 4 | SW 6 | WSW 7 | W 6 | WSW 6 | W 6 |
178 | 308 | 167 | 231 | 189 | 123 | 102 | 31 | — | 23 | 10 | 66 | 131 | 7 | 58 | 196 | 423 | 285 | 167 | 178 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 292 | 250 | 256 | 456 | 250 | 312 | 250 | 130 | 15 | 256 | 132 | 191 | 309 | 256 | 125 | 639 | 562 | 250 | 555 | 467 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
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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.










