Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 23 Jul 2026:
- Most powerful swell: Sunday 26 Jul, 4AM (local time) - 3ft (0.9m), 6s period, WSW swell with 51 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 0.9m 6s and forecast to arrive on Sunday (Jul 26) 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 0.6m 4s period and expected on Monday (Jul 27) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Sun 26th Jul) | 3ft (0.9m) 6s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
The Lowdown
Hey gang, Rusty here. Let's break down what's shaking for Whistling Sands (Porth Oer) over the next couple weeks.
I won't sugarcoat it – we're staring down a long, quiet stretch for this sheltered spot. The first several days are a total loss, and honestly, the whole 16-day window is thin pickings for a decent wave.
Right now, starting Thursday the 23rd through the end of July, it's a bust. We've got tiny surf and nasty onshore wind tearing it up. Thursday morning has a weak 3ft swell from the north, but with a 12 mph cross-onshore breeze, it's just a chop fest. The wave energy is a measly 54.
Friday the 24th goes almost flat in the morning with a 0.3ft swell. The afternoon goes glassy, which is a real tease, but with only 0.3ft on offer, you'd be sitting there doing nothing. We get a few clean days with offshore winds from the 27th to the 29th, but the swell is tiny – around 1ft or less. You might sneak a fun little knee-high wave on the cleanest day, like the 28th, but it's a long shot.
Water temp is about what you'd expect for this time of year.
The only thing that perks my ears up is Sunday, August 2nd. The morning shows a 4ft swell from the northwest, pushing the wave energy up to 142 – that's a solid pulse of juice! But here's the kicker: a 12 mph cross-shore wind will make it a lumpy, messy scene. Plus, the swell is coming from the northwest, not the southwest this spot really likes. So you get some size, but no quality.
The rest of the first week of August is back to tiny or flat, with some clean windows but zero power. There's a 3ft wave on the 4th afternoon with clean offshore wind, but it's from the north and weak.
Truth is, this is just a typical summer flat spell for this coast. There's no standout day. The closest call is that August 2nd morning, but even that's more about size than anything you'd want to ride. You'd be better off looking at a more exposed beach break.
Hold tight, and don't waste the gas on this one.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat afternoon. Very mild (max 17°C on Wed night, min 14°C on Wed night). Winds increasing (calm on Fri afternoon, fresh winds from the WSW by Sat morning). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Sat night. Very mild (max 17°C on Sun night, min 14°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | |||||||||||||||
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) | N 6 | N 6 | N 5 | SW 13 | SW 13 | WSW 2 | WSW 4 | WSW 5 | WSW 5 | SW 6 | WSW 6 | SW 6 | NNW 4 | WSW 6 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | SW 4 | WSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 50 | 49 | 19 | 7 | 7 | 1 | 14 | 40 | 44 | 32 | 26 | 9 | 16 | 3 | 4 | 4 | 3 | 7 | 3 | 3 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | glassy | cross | cross-on | cross | cross-on | on | on | on | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | on |
High Tide | 4:24PM2.82m | 4:58AM2.82m | 5:36PM2.84m | 6:08AM2.84m | 6:38PM2.97m | 7:05AM2.95m | 7:29PM3.16m | 7:52AM3.10m | 8:12PM3.37m | 8:32AM3.26m | 8:49PM3.59m | 9:07AM3.41m | 9:24PM3.79m | ||||||||
Low Tide | 10:33AM1.32m | 11:08PM1.41m | 11:50AM1.39m | 00:34AM1.37m | 1:04PM1.32m | 1:40AM1.21m | 1:59PM1.16m | 2:29AM1.01m | 2:42PM0.97m | 3:09AM0.80m | 3:19PM0.77m | 3:46AM0.61m | 3:53PM0.60m | ||||||||
 | |  | | |  |  |  |  |  | | | | | | | | | | | | |
 | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:28 | — | — | 5:30 | — | — | 5:31 | — | — |
 | — | — | 9:27 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:17 |
mm | — | — | — | — | — | — | — | 2 | 6 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 17 | 16 | 14 | 16 | 17 | 15 | 16 | 16 | 15 | 16 | 17 | 14 | 16 | 16 | 16 | 17 | 17 | 17 | 19 | 17 |
Feels °C | 11 | 13 | 12 | 12 | 14 | 16 | 11 | 13 | 14 | 11 | 14 | 16 | 12 | 13 | 13 | 13 | 14 | 15 | 17 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | W 14 | W 14 | — | N 5 | N 4 | — | SW 12 | NW 5 | S 11 | SW 6 | WSW 6 | SW 6 | SW 6 | NNW 4 | — | — | — | — | SW 4 | SW 4 | WSW 4 |
| kJ | 4 | 4 | — | 7 | 1 | — | 6 | 3 | 3 | 32 | 26 | 9 | 6 | 7 | — | — | — | — | 3 | 3 | 7 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 13 | SW 13 | — | — | SW 12 | — | — | — | — | — | WSW 6 | W 6 | — | — | — | — | — | — |
| kJ | — | — | — | 7 | 7 | — | — | 6 | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 6 | N 6 | N 5 | N 5 | — | WSW 2 | WSW 4 | WSW 5 | WSW 5 | NW 4 | NW 5 | NNW 4 | NNW 4 | — | SW 4 | SW 4 | SW 4 | SW 4 | — | — | — |
| kJ | 50 | 49 | 19 | 2 | — | 1 | 14 | 40 | 44 | 11 | 22 | 9 | 16 | — | 4 | 4 | 3 | 7 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 252 | 571 | 288 | 1034 | 1032 | 371 | 359 | 359 | 281 | 45 | 137 | 132 | 288 | 292 | 221 | 282 | 292 | 288 | 295 | 295 | 288 |
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.
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