Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 9 Jul 2026:
- Most powerful swell: Saturday 11 Jul, 4AM (local time) - 3.5ft (1.0m), 6s period, NNW swell with 67 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 1.0m 6s and forecast to arrive on Saturday (Jul 11) 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 0.9m 6s period and expected on Saturday (Jul 11) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Sat 11th Jul) | 3.5ft (1.0m) 6s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
Alright, Rusty here, and I’m calling it like it is: Whistling Sands (Porth Oer) is looking about as exciting as a flat tire over the next two weeks. The whole 16-day run is a bust. You’re looking at a long stretch of nothing. The first few days are a total write-off, and the pattern just keeps repeating. There’s a tiny moment on the morning of Saturday, July 23rd where the wind goes glassy, but the swell is a pathetic 0.6m from the NW, with a combined energy of only 32 (weak). The water sits around 59°, which is normal for July. But for surfing, it’s a hard pass. Any time the swell tries to show up, the wind is cross-onshore and messy. This setup is more for kiteboarding than paddle surfing right now. A blank run like this is pretty standard for this spot, so don’t get your hopes up. Keep watching, but it’s a tough one.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sat night. Warm (max 25°C on Sat night, min 15°C on Thu morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Tue afternoon, min 15°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
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 11 | WSW 4 | N 3 | W 11 | NNW 4 | NNW 5 | W 8 | NNW 5 | W 8 | N 5 | N 4 | N 5 | SE 4 | NNE 5 | SW 15 | SE 4 | SW 18 | SW 14 | SW 16 | SW 16 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 2 | 2 | 2 | 11 | 37 | 1 | 20 | 1 | 7 | 2 | 0 | 1 | 9 | 8 | 1 | 12 | 7 | 10 | 10 | 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 | glassy | cross-on | cross-off | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross | cross | cross-off | cross-off | cross-on | cross-on |
High Tide | 4:03PM3.10m | 4:32AM3.32m | 5:14PM3.21m | 5:44AM3.39m | 6:20PM3.41m | 6:49AM3.55m | 7:19PM3.69m | 7:48AM3.73m | 8:13PM3.98m | 8:41AM3.88m | 9:03PM4.23m | 9:31AM3.97m | 9:51PM4.40m | ||||||||
Low Tide | 10:25AM0.97m | 10:48PM1.17m | 11:37AM0.96m | 00:10AM1.06m | 12:52PM0.86m | 1:26AM0.82m | 1:58PM0.68m | 2:30AM0.51m | 2:55PM0.48m | 3:26AM0.22m | 3:45PM0.31m | 4:17AM-0.00m | 4:32PM0.20m | ||||||||
 | |  | | | | | |  | | | | |  |  |  | | |  | | | |
 | 5:03 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — |
 | — | — | 9:42 | — | — | 9:40 | — | — | 9:39 | — | — | 9:39 | — | — | 9:38 | — | — | 9:37 | — | — | 9:37 |
mm | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | — | — | — | — | 3 | 6 | 2 |
Temp °C | 16 | 20 | 20 | 22 | 23 | 21 | 22 | 24 | 25 | 22 | 25 | 24 | 19 | 24 | 24 | 21 | 26 | 26 | 21 | 24 | 20 |
Feels °C | 14 | 18 | 17 | 20 | 19 | 17 | 21 | 22 | 21 | 21 | 21 | 19 | 15 | 19 | 19 | 19 | 21 | 20 | 22 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | WSW 4 | WSW 4 | SW 4 | W 11 | W 11 | W 9 | NNW 6 | W 8 | N 5 | ESE 3 | — | N 5 | SE 4 | — | N 5 | ESE 3 | — | N 5 | SW 16 | N 5 | N 5 |
| kJ | 2 | 2 | 1 | 2 | 2 | 2 | 47 | 1 | 15 | 1 | — | 12 | 1 | — | 11 | 2 | — | 7 | 10 | 2 | 12 |
Swell 2 Height (m) Direction Period (s) | SW 11 | — | — | — | W 9 | — | W 8 | — | W 8 | — | — | — | N 6 | W 19 | SW 15 | N 4 | SW 18 | SW 14 | SW 13 | SW 16 | SW 6 |
| kJ | 5 | — | — | — | 2 | — | 1 | — | 1 | — | — | — | 1 | 7 | 8 | 2 | 12 | 7 | 7 | 10 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 7 | — | W 6 | — | — | — | — | W 15 | — | SE 4 | N 6 | — | SE 4 | SW 13 | SW 13 |
| kJ | — | — | — | — | — | — | 1 | — | 1 | — | — | — | — | 4 | — | 1 | 1 | — | 1 | 7 | 7 |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | N 3 | N 3 | NNW 4 | NNW 5 | — | NNW 5 | ESE 3 | N 5 | N 4 | E 3 | ENE 3 | NNE 5 | E 3 | E 3 | N 2 | ESE 3 | NE 3 | NE 3 | E 4 |
| kJ | — | 1 | 2 | 1 | 11 | 37 | — | 20 | 2 | 7 | 2 | 5 | 3 | 9 | 6 | 2 | 1 | 3 | 3 | 3 | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 193 | 281 | 193 | 113 | 132 | 140 | 218 | 249 | 221 | 324 | 178 | 349 | 388 | 134 | 257 | 257 | 113 | 250 | 314 | 278 | 117 |
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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