Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 21 Jul 2026:
- Most powerful swell: Wednesday 22 Jul, 1PM (local time) - 4.5ft (1.3m), 6s period, NNW swell with 113 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 6s and forecast to arrive on Wednesday (Jul 22) at 1PM. 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 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 22nd Jul) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a look at what’s cookin’ for your local stretch.
Well, I gotta be straight with you – it’s a long, flat spell right now. The first bit of anything even worth paddling out for doesn’t show up until the afternoon of Wednesday the 23rd of July, and even then, it’s barely a blip. We’re looking at a solid 5-day gap from the start of the forecast with no real options. The only break on the radar is Whistling Sands (Porth Oer) , and it’s a sheltered, inconsistent little beginner spot that rarely gets a proper pulse.
The water temp is sitting at 60°F, which is about average for the time of year, nothing wild there.
The first real chance comes Wednesday afternoon. We’ll see a 4ft swell from the NNW with a period of only 6 seconds, so it’s short-period windswell, not much grunt. The wind is a fresh cross-onshore, making it lumpy. The combined energy is a moderate 106 (in brackets), but it’s still a messy, uninviting scene. Honestly, for a paddle surfer, it’s a hard pass. The setup is more your kite-surfing territory.
After that, it stays pretty poor. Thursday the 24th has a bit of swell but it’s small and weak. Friday the 25th is tiny, with a long period swell of 13 seconds but only 0.3ft – that’s just a lake ripple. The Saturday and Sunday that follow are just choppy and onshore.
The best of a bad bunch might be the afternoon of Wednesday the 5th of August. We’ve got a 4ft swell from the NNW, period of 6 seconds, and a moderate offshore wind from the ESE. That’ll give you clean, surfable waves. The energy is a moderate 108 (in brackets). It’s not a standout by any stretch, but it’s the only window where the conditions are clean. For a beginner at this inconsistent spot, it’s about as good as it gets in this bleak 16-day run. Don’t expect barrels, just a little waist-high wave to yourself.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Thu afternoon, min 11°C on Tue night). Winds decreasing (fresh winds from the NNW on Wed afternoon, light winds from the N by Thu night). | Days 5-7 Weather SummarySome drizzle, heaviest during Sat morning. Very mild (max 18°C on Fri night, min 13°C on Sat morning). Winds increasing (calm on Fri afternoon, fresh winds from the NW by Sun morning). | |||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||
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 4 | N 4 | N 6 | NNW 6 | N 5 | N 6 | N 5 | N 5 | SW 13 | SW 13 | WSW 2 | WNW 4 | WSW 4 | SW 5 | W 4 | WNW 4 | NW 5 | NNW 6 | WSW 6 | SW 5 |
Wave Graph  | ||||||||||||||||||||
 kJ | 21 | 46 | 0 | 106 | 58 | 50 | 42 | 7 | 7 | 7 | 1 | 6 | 28 | 19 | 22 | 38 | 51 | 93 | 13 | 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 | glassy | cross-on | cross | cross | on | on | on | on | cross | cross-off | cross |
High Tide | 2:38AM3.23m | 3:13PM2.92m | 3:43AM2.96m | 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 | ||||||||
Low Tide | 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 | 1:59PM1.16m | 2:29AM1.01m | 2:42PM0.97m | 3:09AM0.80m | |||||||
 |  | |  | | | |  | | | |  | | | |  | | | | | |
 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — | 5:24 | — | — | 5:26 | — | — | 5:28 | — | — |
 | — | 9:29 | — | — | 9:28 | — | — | 9:27 | — | — | 9:24 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 13 | 17 | 16 | 15 | 18 | 18 | 15 | 17 | 18 | 15 | 17 | 17 | 15 | 17 | 17 | 17 | 21 | 21 |
Feels °C | 10 | 10 | 8 | 12 | 11 | 11 | 15 | 16 | 13 | 17 | 17 | 10 | 15 | 15 | 10 | 13 | 13 | 13 | 17 | 19 |
Swell 1 Height (m) Direction Period (s) | W 7 | — | — | — | — | W 14 | W 14 | — | N 4 | N 4 | — | SW 12 | NW 4 | SW 5 | — | — | — | WSW 5 | NNW 6 | SW 5 |
| kJ | 1 | — | — | — | — | 4 | 4 | — | 3 | 1 | — | 6 | 1 | 19 | — | — | — | 15 | 43 | 7 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SW 13 | SW 13 | — | — | SW 12 | S 11 | — | — | — | — | WSW 6 | NNW 5 |
| kJ | — | — | — | — | — | — | — | — | 7 | 7 | — | — | 5 | 3 | — | — | — | — | 13 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 13 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | N 4 | N 4 | N 6 | NNW 6 | N 5 | N 6 | N 5 | N 5 | — | — | WSW 2 | WNW 4 | WSW 4 | NW 3 | W 4 | WNW 4 | NW 5 | NNW 6 | — | — |
| kJ | 21 | 46 | 108 | 106 | 58 | 50 | 42 | 7 | — | — | 1 | 4 | 28 | 3 | 22 | 38 | 51 | 93 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 991 | 85 | 321 | 921 | 314 | 252 | 313 | 292 | 397 | 855 | 292 | 648 | 359 | 147 | 499 | 498 | 147 | 270 | 328 | 292 |
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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