Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 18 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 1AM (local time) - 6ft (1.9m), 7s period, SSW swell with offshore winds.
- Most powerful swell: Tuesday 25 Aug, 7AM (local time) - 7ft (2.1m), 8s period, SSW swell with 480 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 1AM (local time) - 6ft (1.9m), 7s 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 Tuesday (Aug 25) at 1AM. The primary swell is predicted to be 1.9m and 7s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.1m and 13s is also forecast. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Whistling Sands (Porth Oer) in the next 16 days are 2.1m 8s and forecast to arrive on Tuesday (Aug 25) at 7AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 6s period and expected on Thursday (Aug 20) at 4PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 25th Aug) | 6ft (1.9m) 7s |
| Best Surf | 1AM (Tue 25th Aug) | 6ft (1.9m) 7s |
| Most Powerful | 7AM (Tue 25th Aug) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
The Lowdown
G’day, Rusty here. Alright, let’s have a proper look at the next couple of weeks for your local patch. Straight up, I gotta be honest with you – it ain’t looking flash for Whistling Sands (Porth Oer). There’s a long, dry spell of poor conditions ahead, and the surf is basically non-existent for the first week or more. We’re talking day after day of flat, weak, choppy junk or next to nothing. The wave energy is pitiful, mostly in the double digits (like 90 or 32) – barely a ripple. The wind is almost always cross or onshore, making a mess of any tiny bump that might show. You’re better off leaving the boards in the shed and finding something else to do.
Now, into the second week, there’s a little glimmer on Tuesday, August 25th that might get your heart beating, just a touch. The morning sees a jump in swell – 5 ft from the SW, with a period of 8 seconds. The combined energy cranks up to 330, which is a moderate push, and for the first time in ages we get a solid offshore wind from the SE at 19 mph, blowing it clean. The water temp is 63°, which is a touch warmer than normal for the time of year. Honestly, for a sheltered, inconsistent beginner spot, this is the standout. It’ll be clean and punching in, but keep your expectations in check – it’s not a world-class setup, and the crowds pop up here sometimes. The afternoon tails off a bit to 4 ft and lighter wind, still surfable but nothing special.
Beyond that, it’s back to the doldrums. August 29th morning goes glassy with a tiny 2 ft swell, but it’s just not enough to get excited about. For the rest of the run, it’s flat or blown out. Honestly, if you want to get wet on a board, this patch just isn’t delivering for paddle surfing over this entire window. The setup looks more interesting for kite surfing than paddle surfing with these onshore breezes and small lumps. Forecasts can change, but right now, it’s a blank run.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Wed night. Very mild (max 18°C on Tue afternoon, min 14°C on Tue night). Winds decreasing (fresh winds from the SW on Wed afternoon, light winds from the N by Thu night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Fri morning. Very mild (max 15°C on Sat afternoon, min 13°C on Fri night). Winds decreasing (fresh winds from the N on Fri night, light winds from the NE by Sun night). | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | WSW 6 | SW 6 | WSW 4 | WSW 4 | SW 4 | SW 6 | NW 5 | SW 7 | N 4 | WSW 6 | NNW 4 | SW 16 | NNW 4 | NNW 4 | SW 15 | NNW 4 | NNW 5 | SW 14 | SW 14 | SW 13 | SSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 90 | 30 | 23 | 22 | 23 | 88 | 41 | 16 | 20 | 3 | 20 | 10 | 14 | 16 | 8 | 14 | 20 | 8 | 7 | 7 | 307 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross | off |
High Tide | 12:40PM3.48m | 1:01AM3.53m | 1:22PM3.21m | 1:46AM3.14m | 2:11PM2.93m | 2:45AM2.80m | 3:22PM2.70m | 4:14AM2.59m | 5:01PM2.65m | 5:49AM2.62m | 6:22PM2.82m | 6:54AM2.80m | 7:16PM3.08m | ||||||||
Low Tide | 7:20PM0.79m | 7:48AM0.95m | 7:59PM1.07m | 8:27AM1.25m | 8:50PM1.34m | 9:23AM1.49m | 10:11PM1.52m | 10:58AM1.60m | 00:02AM1.51m | 12:37PM1.49m | 1:19AM1.30m | 1:36PM1.24m | 2:08AM1.03m | ||||||||
 |  |  |  | | | |  |  |  | | | | |  | | | | | | | |
 | 6:03 | — | — | 6:05 | — | — | 6:07 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — |
 | — | 8:39 | — | — | 8:37 | — | — | 8:35 | — | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — |
mm | — | — | 1 | 1 | 1 | 5 | 4 | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 18 | 15 | 15 | 16 | 17 | 15 | 16 | 15 | 14 | 14 | 14 | 13 | 15 | 15 | 13 | 14 | 14 | 15 | 16 | 17 |
Feels °C | 13 | 15 | 11 | 11 | 11 | 14 | 10 | 11 | 10 | 11 | 9 | 8 | 9 | 10 | 11 | 10 | 11 | 12 | 13 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | — | NW 4 | SW 17 | SW 16 | SW 15 | SW 16 | SW 6 | SW 7 | SW 6 | NNW 4 | SW 6 | SW 13 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | N 5 | SW 14 | SW 13 | SW 13 |
| kJ | — | 9 | 11 | 10 | 9 | 10 | 33 | 16 | 6 | 11 | 1 | 7 | 8 | 8 | 8 | 8 | 7 | 4 | 7 | 7 | 7 |
Swell 2 Height (m) Direction Period (s) | — | SW 16 | W 17 | — | — | SW 16 | SW 15 | SW 14 | SW 14 | W 4 | SW 13 | SW 5 | — | S 12 | SW 12 | W 9 | SW 14 | SW 14 | — | — | SW 13 |
| kJ | — | 11 | 6 | — | — | 10 | 8 | 8 | 8 | 1 | 7 | 1 | — | 3 | 6 | 2 | 7 | 8 | — | — | 7 |
Swell 3 Height (m) Direction Period (s) | — | W 17 | — | — | — | — | — | — | SW 14 | WSW 6 | W 16 | SW 16 | W 6 | — | W 10 | — | W 9 | — | — | — | — |
| kJ | — | 5 | — | — | — | — | — | — | 8 | 3 | 5 | 10 | 1 | — | 2 | — | 2 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 6 | SW 6 | WSW 4 | WSW 4 | SW 4 | SW 6 | NW 5 | N 6 | N 4 | E 2 | NNW 4 | N 3 | NNW 4 | NNW 4 | N 4 | NNW 4 | NNW 5 | — | SSW 4 | SSW 4 | SSW 7 |
| kJ | 90 | 30 | 23 | 22 | 23 | 88 | 41 | 305 | 20 | 1 | 20 | 6 | 14 | 16 | 3 | 14 | 20 | — | 10 | 28 | 307 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 359 | 145 | 145 | 288 | 15 | 130 | 130 | 132 | 132 | 308 | 204 | 193 | 279 | 218 | 134 | 308 | 284 | 302 | 287 | 10 |
Best forecast wave conditions in Lleyn Peninsula | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Whistling Sands (Porth Oer) surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest