Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 8 Jul 2026:
- Most powerful swell: Saturday 11 Jul, 4AM (local time) - 3.5ft (1.0m), 6s period, N swell with 64 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 1.0m 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. Let me tell you straight up: we’ve got a tough run ahead at Whistling Sands (Porth Oer). This spot is sheltered and inconsistent at the best of times, and for the next week or more there’s just nothing doing. We're looking at a big fat zero on the surf front – days and days of tiny, wind-blown dribble or flat spells. The good news is that this sort of blank run is pretty normal for a sheltered spot like this, so don't lose all hope.
Wednesday 9th July through the rest of the first week is a write-off. We're seeing heights barely tickling 0.3ft to 2ft with bugger-all energy behind them (mostly single-digit combined energy). The wind is a mess – cross-onshore from the north most of the time, which just chops up any hint of a wave. A few mornings go glassy or clean, like Wednesday morning 8th July, but with zero swell energy (0 combined energy), there’s simply nothing to ride. You’d be sitting on a flat sea.
Thursday 16th July afternoon sees a tiny pulse bump up to 3ft from the NNE, with combined energy of 59, but it's still crossed-up with a moderate cross-onshore breeze and a short, weak period of just 5 seconds. That’s a messy, close-out shorebreak for beginners only, if you're desperate.
The only slight glimmer in the whole 16-day window is Thursday 23rd July morning. We get a 4ft swell from the north, period of 5 seconds, with a clean cross-offshore wind from the south. Combined energy is 55 (moderate). It's still short period and a bit on the weak side, but clean conditions might make for a few small, rideable lumps. That’s your single best bet, but don’t expect anything special. Crowds are possible here sometimes, so don’t be surprised if a few other keen souls turn up for that one.
Apart from that one morning, it’s a long, quiet stretch. The water temp anomaly isn't given for this break, so I can't say if it's warmer or cooler than usual. Stay patient, keep an eye on the charts, because it tends not to stay this poor forever.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Fri afternoon, min 16°C on Wed night). Winds increasing (calm on Wed night, fresh winds from the N by Fri night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat afternoon. Warm (max 22°C on Sat afternoon, min 13°C on Sun night). Winds decreasing (fresh winds from the N on Sat afternoon, light winds from the N by Sun morning). | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
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) | — | — | WSW 3 | SW 11 | NNW 3 | N 3 | W 11 | N 4 | N 5 | W 8 | NNW 6 | W 8 | NNW 4 | N 4 | N 4 | ESE 3 | W 19 | SW 15 | SW 18 | SW 18 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 1 | 5 | 1 | 2 | 2 | 9 | 36 | 1 | 42 | 1 | 0 | 5 | 0 | 0 | 8 | 8 | 12 | 12 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-on | cross | cross | cross-on | cross-off | cross | cross-on | cross |
High Tide | 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 | 7:48AM3.73m | 8:13PM3.98m | 8:41AM3.88m | 9:03PM4.23m | ||||||||
Low Tide | 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 | 2:55PM0.48m | 3:26AM0.22m | 3:45PM0.31m | |||||||||
 |  |  | | | | | |  | |  |  | | | | | | | | | | |
 | 5:03 | — | — | 5:03 | — | — | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — |
 | — | — | 9:43 | — | — | 9:42 | — | — | 9:40 | — | — | 9:39 | — | — | 9:39 | — | — | 9:38 | — | — | 9:37 |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 19 | 18 | 17 | 20 | 20 | 22 | 23 | 20 | 21 | 22 | 21 | 19 | 21 | 21 | 17 | 19 | 21 | 19 | 22 | 23 |
Feels °C | 17 | 18 | 17 | 16 | 18 | 18 | 20 | 20 | 15 | 19 | 18 | 17 | 19 | 18 | 14 | 13 | 13 | 15 | 16 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | — | — | — | SW 4 | SW 5 | SW 4 | W 11 | W 11 | W 9 | NNW 6 | W 8 | NNW 5 | NNW 4 | — | N 4 | N 4 | W 19 | N 4 | N 4 | SW 18 | N 4 |
| kJ | — | — | — | 1 | 1 | 1 | 2 | 2 | 1 | 64 | 1 | 37 | 4 | — | 13 | 1 | 7 | 9 | 1 | 12 | 9 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 11 | — | — | W 9 | W 8 | — | W 8 | — | W 8 | — | — | — | — | — | SW 15 | SW 18 | W 14 | SW 14 |
| kJ | — | — | — | 5 | — | — | 2 | 1 | — | 1 | — | 1 | — | — | — | — | — | 8 | 12 | 4 | 7 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 8 | — | — | — | — | — | — | W 15 | — | W 14 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | 4 | — | 4 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | WSW 3 | NW 3 | NNW 3 | N 3 | — | N 4 | N 5 | — | NNW 6 | E 3 | ESE 3 | N 4 | E 3 | ESE 3 | N 3 | ENE 3 | ESE 3 | N 3 | E 3 |
| kJ | — | — | 1 | 1 | 1 | 2 | — | 9 | 36 | — | 42 | 5 | 1 | 5 | 3 | 2 | 8 | 2 | 2 | 5 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 204 | 256 | 288 | 291 | 302 | 193 | 113 | 132 | 141 | 204 | 299 | 218 | 264 | 178 | 325 | 178 | 134 | 273 | 178 | 178 | 264 |
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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