Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 6 Jul 2026:
- Most powerful swell: Friday 10 Jul, 10PM (local time) - 4.5ft (1.3m), 5s period, N swell with 87 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 1.3m 5s and forecast to arrive on Friday (Jul 10) at 10PM. 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 Saturday (Jul 11) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Fri 10th Jul) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
Updates in hr min s Forecast update imminent
Alright, grab a coffee, let’s have a look at what’s on offer.
Honestly, mate, it’s a pretty bleak stretch for Whistling Sands (Porth Oer). We’re looking at a 16-day window and there’s hardly anything worth paddling out for. The forecast is pretty much a write-off straight through. You’ve got a long, frustrating gap of days with next to no surf, and when there is a tiny bump, the quality is just poor.
The water’s sitting at about 59° right now, which is pretty normal for this time of year, nothing unusual there.
Let’s get into it. Monday the 6th kicks off with a tiny 2 ft swell from the SW, with a short period of 5 seconds and weak energy (15). Wind is cross-off, so the surface is clean, but there’s just no power or size to work with. It’s a beginner-high tide kind of day but nothing I’d call surfable.
Tuesday the 7th is even smaller, dropping to 1 ft, and by Wednesday the 8th it’s flat – glassy, sure, but flat. That flat spell hangs around for days. A few tiny pulses show up but they barely register, with swell heights under 0.7 ft and energy readings in the single digits. The wind is usually onshore or cross-onshore, making things lumpy or choppy. Thursday the 9th through to the weekend is just no good for a paddle.
The best you’ll see – and I’m stretching the word ‘best’ here – is Monday the 20th. That morning brings a 3 ft swell from the NNW, period a short 4 seconds, energy still weak (17), but the wind is cross-off from the SSW, so the surface is clean. It’s followed by a glassy afternoon on the 20th with a 2 ft WSW swell. Even then, it’s barely a wave. It’s inconsistent, so you’d be waiting around a lot for a tiny, weak roller. For a beginner, that might be a fun little splash, but for anyone else, it’s a skip.
There is no standout here, no day that gets the heart rate up. The setup here is so sheltered and the swell window so narrow that a blank run like this is pretty normal for the area. Forecasts can change, but right now, I’d save the wax for another week.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Mon night, min 16°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Sat night. Warm (max 22°C on Thu night, min 12°C on Fri night). Winds increasing (light winds from the N on Thu morning, strong winds from the N by Fri night). | ||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | |||||||||||||||
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) | SW 5 | SW 5 | SW 5 | SW 5 | W 12 | SW 12 | — | — | W 11 | SW 11 | S 12 | NNE 3 | W 11 | NNW 4 | W 11 | W 8 | W 8 | W 8 | NNE 4 | NNE 5 | N 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 14 | 24 | 43 | 7 | 3 | 6 | 0 | 0 | 2 | 5 | 3 | 2 | 2 | 20 | 2 | 1 | 1 | 1 | 5 | 9 | 0 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-off | cross-off | off | glassy | cross | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-on | cross-off |
High Tide | 1:05PM3.23m | 1:25AM3.58m | 1:55PM3.16m | 2:17AM3.46m | 2:55PM3.10m | 3:20AM3.35m | 4:03PM3.10m | 4:32AM3.32m | 5:14PM3.21m | 5:44AM3.39m | 6:20PM3.41m | 6:49AM3.55m | 7:19PM3.69m | ||||||||
Low Tide | 7:52PM0.98m | 8:34AM0.84m | 8:38PM1.09m | 9:24AM0.92m | 9:36PM1.17m | 10:25AM0.97m | 10:48PM1.17m | 11:37AM0.96m | 00:10AM1.06m | 12:52PM0.86m | 1:26AM0.82m | 1:58PM0.68m | 2:30AM0.51m | ||||||||
 |  |  | | |  | | | | | | | | |  | | | | | | | |
 | 5:01 | — | — | 5:01 | — | — | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — |
 | — | — | 9:44 | — | — | 9:44 | — | — | 9:43 | — | — | 9:42 | — | — | 9:40 | — | — | 9:39 | — | — | 9:39 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 7 | — | — | — |
Temp °C | 18 | 19 | 20 | 17 | 18 | 19 | 19 | 20 | 20 | 19 | 21 | 22 | 21 | 21 | 17 | 16 | 22 | 22 | 21 | 26 | 25 |
Feels °C | 15 | 16 | 18 | 15 | 16 | 18 | 20 | 20 | 20 | 18 | 19 | 21 | 18 | 18 | 12 | 11 | 18 | 19 | 22 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | WNW 3 | NW 4 | SW 5 | SW 5 | NW 4 | SW 3 | — | — | — | SW 11 | S 12 | — | N 3 | W 11 | N 6 | NNW 6 | NNW 5 | N 5 | ESE 3 | — | N 5 |
| kJ | 1 | 1 | 43 | 7 | 3 | 2 | — | — | — | 5 | 3 | — | 1 | 2 | 80 | 37 | 15 | 4 | 1 | — | 14 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NW 4 | SW 4 | — | — | — | — | — | — | — | — | — | W 11 | W 8 | SE 4 | W 8 | N 6 | N 5 | — |
| kJ | — | — | — | 5 | 3 | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 | 1 | 2 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | W 12 | SW 12 | — | — | W 11 | W 6 | — | — | W 11 | — | — | W 7 | W 8 | — | — | — | — |
| kJ | — | — | — | — | 3 | 6 | — | — | 2 | 1 | — | — | 2 | — | — | 1 | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 5 | WSW 5 | — | — | — | — | — | — | — | NNW 3 | NNE 3 | ENE 3 | NNW 4 | ESE 3 | ESE 3 | ESE 3 | ESE 4 | NNE 4 | NNE 5 | E 3 |
| kJ | 14 | 24 | 39 | — | — | — | — | — | — | — | 2 | 2 | 1 | 20 | 3 | 2 | 2 | 22 | 5 | 9 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 292 | 292 | 297 | 282 | 318 | 218 | 204 | 295 | 204 | 252 | 295 | 204 | 113 | 140 | 193 | 218 | 252 | 257 | 324 | 178 | 257 |
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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