Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 3 Sep 2026:
- Most powerful swell: Tuesday 8 Sep, 4AM (local time) - 7ft (2.2m), 7s period, WSW swell with 411 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 2.2m 7s and forecast to arrive on Tuesday (Sep 08) 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 1.5m 6s period and expected on Sunday (Sep 06) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Tue 8th Sep) | 7ft (2.2m) 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 Whistling Sands (Porth Oer). I gotta be straight with you – the next couple of weeks are looking pretty grim for a decent paddle. There's a real dry spell coming up.
The first bit of surf that's even worth a mention doesn't show up until Saturday morning, the 5th of September. Even then, it's pretty weak – just a tiny 2ft of swell from the SW, with a short period and low energy (54). The wind is light and cross-shore, so it won't be blown out, but it's barely a ripple. That afternoon drops even smaller to 2ft, and while it's clean, the energy is next to nothing (42). It's a long wait for not much.
After that, the surf just disappears. We're looking at flat, tiny waves for days on end. Sunday the 6th shows a couple of 0.3ft waves with a very long period of 13 seconds, but that's not going to break in any rideable way here. This blank run stretches all the way through to the morning of Saturday the 12th of September. That's a solid week of pretty much nothing on offer.
Now, on Saturday the 12th, there's a moment. The morning shows a 5ft swell from the NW, and the wind is completely glassy. The energy is moderate (211). The conditions are described as "surfable waves but very ordinary," which is about as good as it gets for this whole forecast. The swell direction isn't ideal for this sheltered spot, and the period is short at 6 seconds, so it won't be pretty. But it's the only time the wind truly cooperates. After that, it's back to small, messy, or onshore junk for the rest of the period. By Sunday the 13th, we get a bigger 7ft pulse from the SW, but the wind is howling onshore and the energy is strong (403), making it a total washout. That's more of a kite-surfing session than a paddle.
The water here is a touch warmer than normal for the time of year, sitting around 62°.
So, the only real standout, if you can call it that, is the glassy morning of Saturday the 12th. It's not going to be epic, but it's the only window of clean conditions. Get on it if you're desperate, but don't expect much. For the rest of us, it's a waiting game.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Thu night. Very mild (max 18°C on Sun morning, min 14°C on Fri morning). Winds decreasing (strong winds from the SW on Thu afternoon, light winds from the WSW by Sat morning). | Days 5-7 Weather SummaryModerate rain (total 14mm), heaviest on Mon night. Warm (max 21°C on Sun afternoon, min 13°C on Mon night). Winds increasing (moderate winds from the S on Sun afternoon, strong winds from the W by Tue night). | |||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | ||||||||||||||
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 6 | WSW 8 | WSW 7 | W 5 | SW 6 | SW 6 | SW 13 | SW 13 | SW 13 | SW 12 | WSW 6 | SW 5 | WSW 6 | W 6 | WSW 6 | WSW 6 | WSW 6 | SW 6 | SW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 190 | 206 | 336 | 237 | 117 | 45 | 28 | 7 | 7 | 6 | 6 | 107 | 129 | 249 | 333 | 218 | 280 | 198 | 278 | 213 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-off |
High Tide | 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 | 7:36AM3.52m | 7:53PM4.02m | ||||||||
Low Tide | 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 | 2:31PM0.47m | 3:02AM0.05m | |||||||
 |  | |  |  | |  |  | | | | | | | | |  | | |  | |
 | — | — | 6:33 | — | — | 6:33 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — |
 | 8:04 | — | — | 8:00 | — | — | 7:59 | — | — | 7:57 | — | — | 7:53 | — | — | 7:52 | — | — | 7:50 | — |
mm | — | 11 | — | — | — | — | — | 3 | — | — | 1 | — | — | 13 | — | — | — | — | — | 6 |
Temp °C | 17 | 17 | 15 | 17 | 16 | 14 | 14 | 15 | 18 | 21 | 17 | 15 | 16 | 15 | 14 | 15 | 14 | 15 | 16 | 15 |
Feels °C | 11 | 11 | 8 | 11 | 9 | 12 | 11 | 11 | 13 | 17 | 13 | 11 | 9 | 7 | 7 | 7 | 4 | 7 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | — | SW 14 | SW 14 | NNW 6 | SW 14 | NW 5 | NW 4 | WSW 6 | SW 13 | SW 13 | SW 12 | WSW 14 | — | — | — | NNW 6 | — | — | NW 5 | — |
| kJ | — | 8 | 8 | 3 | 8 | 19 | 4 | 4 | 7 | 6 | 6 | 19 | — | — | — | 13 | — | — | 7 | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | SW 14 | N 5 | SW 13 | W 13 | — | — | WSW 11 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 7 | 2 | 7 | 3 | — | — | 12 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 14 | SW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 7 | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 6 | WSW 8 | WSW 7 | W 5 | SW 6 | SW 6 | SW 4 | SSW 5 | SSW 5 | SW 6 | WSW 6 | SW 5 | WSW 6 | W 6 | WSW 6 | WSW 6 | WSW 6 | SW 6 | SW 7 |
| kJ | 190 | 206 | 336 | 237 | 117 | 45 | 28 | 16 | 30 | 56 | 138 | 107 | 129 | 249 | 333 | 218 | 280 | 198 | 278 | 213 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 325 | 131 | 299 | 498 | 130 | 15 | 256 | 139 | 191 | 141 | 233 | 125 | 292 | 292 | 646 | 499 | 507 | 359 | 270 | 229 |
Best forecast wave conditions in Lleyn Peninsula | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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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