Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 27 Aug 2026:
- Best quality surf: Saturday 29 Aug, 1PM (local time) - 4ft (1.2m), 6s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 3 Sep, 7AM (local time) - 7.5ft (2.3m), 7s period, SW swell with 466 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 1PM (local time) - 4ft (1.2m), 6s period with SSW swell.
Best Forecast Surf Conditions for Whistling Sands (Porth Oer) this week:
The surf forecast for Whistling Sands (Porth Oer) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Aug 29) at 1PM. The primary swell is predicted to be 1.2m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Whistling Sands (Porth Oer) in the next 16 days are 2.3m 7s and forecast to arrive on Thursday (Sep 03) at 7AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Thursday (Sep 03) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Sat 29th Aug) | 4ft (1.2m) 6s |
| Best Surf | 1PM (Sat 29th Aug) | 4ft (1.2m) 6s |
| Most Powerful | 7AM (Thu 3rd Sep) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you, the outlook for this spot isn't exactly lighting up the calendar.
We’re looking at Whistling Sands (Porth Oer) for the next 16 days, and honestly, it’s a real mixed bag of mostly poor conditions. The water's sitting at about 62°, feeling a touch warmer than average for this time of year. The problem is, we just don't have the swell energy to make the most of it.
The first few days are a total write-off. Thursday the 27th and Friday the 28th are tiny, with waves barely a ripple. The combined energy is pitiful, sitting at 10 or 15. You'd be better off with a beach towel than a surfboard.
We get a little pulse on Saturday the 29th morning. The wind goes offshore from the SE at 22 mph, cleaning things up, but it's still a knee-high affair at 3 ft from the SW. The energy is still weak at 48. It's more of a "stretch the wetsuit" session than anything else.
Sunday the 31st is where we see a bit of a spike. A 4 ft swell from the SW rolls in, with moderate energy at 270. But the wind is onshore from the WNW at 16 mph. It'll be messy. Not the day to get excited. Then Monday the 1st of September drops right back down with fresh, lumpy cross-shore winds.
The real tease comes on Saturday the 5th of September. The morning shows a solid 7 ft swell from the SW with strong energy at 499. That's a fair bit of water. For the more experienced crew, it could be worth a look, but the 6 mph wind from the W is cross-onshore, so it'll be a bit bumpy. The afternoon cleans up with a cross-offshore breeze and a 4 ft set, but the energy drops a bit to 237.
Then we get another swing on Monday the 7th of September. A big 7 ft swell from the WSW with energy hitting 695 – that’s serious power. But again, it’s a moderate cross-shore wind at 16 mph, which will create some chop. It's a powerful, lumpy day for experienced surfers only.
After that, the whole second week just fizzles out. Tiny waves and strong winds rule the roost from the 8th right through to the 11th. There's nothing worth chasing.
Honestly, if you look at the setup and the wind, on the bigger days with that onshore or cross-shore wind, this is looking more interesting for a kite session than a paddle surf. The sheltered nature of the spot and the consistent chop on the bigger days scream kiteboarding.
So, if you're desperate, the best of a bad bunch is the Saturday the 5th of September afternoon session. It’s clean, and there's some energy. The Monday the 7th of September morning has the most power but is rough. Everything else? Leave the board at home.
Rusty, signing off.
Short Range ForecastHeavy rain (total 27mm), heaviest during Thu afternoon. Very mild (max 18°C on Thu morning, min 15°C on Sat night). Winds increasing (calm on Thu afternoon, fresh winds from the SE by Sat morning). | Days 4-6 Weather SummaryModerate rain (total 12mm), heaviest on Sun afternoon. Very mild (max 18°C on Tue afternoon, min 13°C on Tue night). Winds increasing (light winds from the WSW on Mon afternoon, fresh winds from the SW by Tue morning). | ||||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | |||||||||||||||
AM | 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) | SSW 7 | SW 6 | SW 7 | SW 6 | SW 6 | SW 6 | SW 6 | SW 7 | SW 9 | SW 8 | SW 4 | SW 8 | SW 9 | SW 8 | SW 8 | W 5 | W 5 | SW 5 | SW 6 | SW 5 | SW 6 |
Wave Graph | |||||||||||||||||||||
6 | 2 | 11 | 10 | 40 | 98 | 46 | 100 | 194 | 84 | 0 | 152 | 260 | 112 | 18 | 66 | 44 | 18 | 11 | 10 | 0 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | on | cross-off | off | cross | cross-on | cross-off | cross-off | cross-on | on | cross | cross-on | cross | cross | on | on | cross-off | cross-off |
High Tide | 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 | 12:08PM3.76m | 00:30AM3.83m | ||||||||
Low Tide | 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 | 6:41AM0.53m | 6:51PM0.67m | ||||||||
6:18 | — | — | 6:20 | — | — | 6:22 | — | — | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:13 | — | — | 8:10 | — | — | 8:07 | — | — | 8:06 | — | |
mm | 5 | 10 | 2 | — | — | 5 | 5 | — | — | 3 | 4 | 1 | — | — | 1 | — | 3 | — | — | — | 8 |
Temp °C | 18 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 16 | 17 | 16 | 16 | 15 | 17 | 16 | 16 | 18 | 17 | 13 | 16 | 17 |
Feels °C | 17 | 18 | 17 | 18 | 16 | 15 | 16 | 15 | 14 | 14 | 12 | 13 | 11 | 12 | 11 | 10 | 15 | 13 | 11 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SSW 7 | SW 6 | SW 7 | SW 6 | SW 6 | — | SW 6 | — | SW 9 | SW 8 | — | SW 7 | SW 9 | SW 8 | NW 4 | — | NW 5 | SW 5 | N 5 | NNW 5 | — |
4 | 2 | 11 | 10 | 40 | — | 46 | — | 194 | 84 | — | 152 | 260 | 112 | 2 | — | 17 | 18 | 12 | 4 | — | |
Swell 2 Height (m) Direction Period (s) | N 5 | — | — | — | SW 11 | — | S 11 | — | NNW 5 | N 4 | — | — | — | NNW 4 | SW 8 | — | — | W 16 | SW 6 | SW 16 | — |
1 | — | — | — | 5 | — | 2 | — | 19 | 1 | — | — | — | 13 | 18 | — | — | 5 | 11 | 10 | — | |
Swell 3 Height (m) Direction Period (s) | SW 12 | — | SW 12 | SW 12 | — | — | — | — | — | — | — | — | — | — | SW 8 | — | — | — | SW 16 | — | — |
6 | — | 5 | 5 | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | 10 | — | — | |
Wind waves Height (m) Direction Period (s) | E 3 | ENE 3 | SSW 3 | S 4 | — | SW 6 | SSE 4 | SW 7 | — | SSW 3 | SW 4 | SW 8 | NW 4 | — | SW 6 | W 5 | W 5 | NNW 4 | — | SW 5 | SW 6 |
3 | 1 | 2 | 7 | — | 98 | 18 | 100 | — | 6 | 44 | 129 | 10 | — | 58 | 66 | 44 | 13 | — | 9 | 150 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 282 | 178 | 262 | 297 | 314 | 314 | 121 | 15 | 15 | 241 | 302 | 15 | 125 | 15 | 277 | 359 | 467 | 297 | 145 | 288 | 316 |
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.











