Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 19 Jul 2026:
- Most powerful swell: Wednesday 22 Jul, 4PM (local time) - 4.5ft (1.4m), 6s period, NNW swell with 122 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 1.4m 6s and forecast to arrive on Wednesday (Jul 22) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Wednesday (Jul 22) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Wed 22nd Jul) | 4.5ft (1.4m) 6s |
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 cookin’ for Whistling Sands (Porth Oer) over the next couple of weeks.
Right off the bat, I gotta be straight with you – this is a tough one. The finder is coming up empty for any kind of decent surf. We’re looking at a solid 16-day stretch with nothing worth paddling out for. The water temp is sittin' around 61°, which is pretty much what you’d expect for this time of year, so no surprises there.
The problem starts now and just keeps going. For the first few days, we’ve got tiny, weak swell with a period of only 4 to 6 seconds – that’s just wind chop, not real surf. The wind is mostly cross-onshore, making it choppy and messy. The combined energy is in the weak range, barely cracking 40 (16 to 40 mark). On the 22nd of July, we get a bit of a bump in height to 5 ft, and the energy climbs to 122 (moderate), but the period is still a short 6 seconds and the wind is a fresh cross-onshore at 18-22 mph, so it’s gonna be lumpy and ugly. That’s more of a kite-surfing setup than a paddle session.
The second half of the month doesn’t get any better. Swell heights drop right back to 0.3 ft to 2 ft, with periods that are either short and weak or, on the 24th and 25th, we get a 13-second swell – but it’s only 0.3 ft. That’s like a whisper. The wind does go clean and cross-off on the 25th and 26th, but there’s just no wave to ride. We get a little glassy moment on the 2nd of August, but again, no swell at all.
Honestly, this is a blank run. The spot is inconsistent and sheltered, and when the swell is this small and the wind is this wrong, there’s just nothing to get excited about. Sometimes it goes like this in these parts. All we can do is keep an eye on the charts.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sun afternoon, min 11°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Thu night, min 12°C on Wed morning). Winds decreasing (fresh winds from the NNW on Wed afternoon, light winds from the SW by Fri afternoon). | ||||||||||||||||||||
Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | |||||||||||||||
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 5 | NNW 4 | N 4 | N 5 | N 4 | N 4 | N 5 | N 4 | N 4 | N 6 | NNW 6 | N 6 | N 5 | NNW 5 | N 5 | SW 13 | SW 13 | W 3 | SW 12 | SW 12 | WSW 3 |
Wave Graph  | |||||||||||||||||||||
 kJ | 11 | 22 | 9 | 17 | 14 | 24 | 28 | 40 | 28 | 0 | 122 | 52 | 19 | 19 | 4 | 7 | 7 | 1 | 6 | 5 | 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 | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross | on | cross-on | cross-off | on |
High Tide | 12:36PM3.54m | 00:55AM3.91m | 1:23PM3.32m | 1:44AM3.57m | 2:14PM3.10m | 2:38AM3.23m | 3:13PM2.92m | 3:43AM2.96m | 4:24PM2.82m | 4:58AM2.82m | 5:36PM2.84m | 6:08AM2.84m | 6:38PM2.97m | ||||||||
Low Tide | 7:23PM0.61m | 8:02AM0.55m | 8:07PM0.85m | 8:45AM0.85m | 8:54PM1.09m | 9:33AM1.12m | 9:52PM1.30m | 10:33AM1.32m | 11:08PM1.41m | 11:50AM1.39m | 00:34AM1.37m | 1:04PM1.32m | 1:40AM1.21m | ||||||||
 | |  | | |  | | | |  | | | | | | | | |  | |  | |
 | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — |
 | — | — | 9:31 | — | — | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:27 | — | — | 9:24 | — | — | 9:23 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 18 | 16 | 14 | 15 | 16 | 15 | 18 | 16 | 13 | 16 | 16 | 13 | 17 | 18 | 15 | 17 | 18 | 15 | 19 | 18 |
Feels °C | 12 | 14 | 12 | 10 | 11 | 12 | 11 | 14 | 12 | 9 | 10 | 13 | 10 | 15 | 16 | 13 | 15 | 15 | 11 | 17 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 11 | S 10 | — | — | — | — | W 7 | — | — | — | — | — | W 14 | W 14 | — | SW 13 | NNW 4 | — | WSW 4 | NW 4 | S 11 |
| kJ | 5 | 2 | — | — | — | — | 1 | — | — | — | — | — | 4 | 4 | — | 7 | 3 | — | 1 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 8 | — | — | — | — | — | — | — | — | — | — | SW 13 | — | SW 12 | SW 6 | — |
| kJ | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 7 | — | 6 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 12 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | — |
Wind waves Height (m) Direction Period (s) | N 5 | NNW 4 | N 4 | N 5 | N 4 | N 4 | N 5 | N 4 | N 4 | N 6 | NNW 6 | N 6 | N 5 | NNW 5 | N 5 | N 4 | NW 3 | W 3 | NW 3 | WSW 3 | WSW 3 |
| kJ | 11 | 22 | 9 | 17 | 14 | 24 | 28 | 40 | 28 | 106 | 122 | 52 | 19 | 19 | 4 | 4 | 2 | 1 | 4 | 2 | 7 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 309 | 324 | 310 | 313 | 313 | 228 | 273 | 313 | 85 | 323 | 638 | 85 | 314 | 314 | 314 | 1031 | 1027 | 975 | 649 | 362 | 359 |
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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