Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 14 Jul 2026:
- Most powerful swell: Saturday 18 Jul, 7PM (local time) - 4ft (1.2m), 5s period, N swell with 70 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 1.2m 5s and forecast to arrive on Saturday (Jul 18) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Wednesday (Jul 15) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Sat 18th Jul) | 4ft (1.2m) 5s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you: the outlook for Whistling Sands (Porth Oer) over the next 16 days is a long, flat stretch. We’re looking at a real dry spell, so don’t be rushing to get the wetsuit on just yet.
Right off the bat, there’s nothing to ride. The first two weeks are basically a write-off. From Tuesday, 14 July all the way through to Saturday, 25 July, we see nothing but tiny, weak swell with no energy behind it. The wave energy is consistently in the low double digits or single digits (like 14, 21, 12), which is basically nothing. The wind is mostly cross or cross-on, and the surf is just poor. It’s a long gap of maybe 11 days with no real surf to speak of. Even the Sunday morning of 19 July offers a bit of offshore wind, but the swell is only 2ft with a short period of 5 seconds – it’s just not enough to get excited about.
For a sheltered spot like this, it’s a tough run. The water temperature is sitting at 61°, which is about normal for this time of year, so that’s not the issue.
The first real flicker of hope comes on Sunday, 26 July morning. We’ve got a clean 2ft swell from the SW with a period of 6 seconds, and a light offshore wind from the SE. The energy is still weak (27), but it’s glassy and clean. It’s a beginner-friendly size, but don’t expect any power. Then on Monday, 27 July, we have a moderate offshore wind from the SSE with a 0.7ft swell – again, tiny but clean. The afternoon of the 27th goes glassy with a 2ft SW swell, which is the best of the bunch, but still small.
Honestly, if you’re desperate, the 27th of July afternoon is the only standout. It’s glassy, the swell is clean, and the water will be dead flat. But with such weak energy (29) and a short period (7 seconds), it’s more of a longboard or a funboard session than anything else. The crowds are listed as “sometimes,” so you might have it to yourself, but it’s not worth the trip unless you’re local.
Apart from that, the rest of the period is a bust. The wind is too strong or cross-onshore, and the swell is just too small. It’s a blank run, and for this area, that’s normal when the Atlantic is sleeping.
Stay patient, keep an eye on the charts. Forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Tue night, min 18°C on Tue morning). Winds decreasing (fresh winds from the NNE on Tue afternoon, calm by Wed morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Fri morning, min 13°C on Fri night). Winds decreasing (fresh winds from the NNW on Sat afternoon, light winds from the NW by Sun morning). | ||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | |||||||||||||||
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 18 | SW 18 | SW 14 | SW 16 | SW 16 | SW 13 | SW 6 | N 3 | N 4 | SSW 6 | NNW 3 | N 3 | N 5 | NNW 5 | N 4 | N 5 | NNW 4 | N 4 | N 5 | NNW 4 | W 18 |
Wave Graph  | |||||||||||||||||||||
 kJ | 12 | 12 | 7 | 10 | 10 | 7 | 1 | 8 | 10 | 6 | 9 | 6 | 21 | 40 | 23 | 25 | 31 | 15 | 24 | 25 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 9:03PM4.23m | 9:31AM3.97m | 9:51PM4.40m | 10:19AM3.97m | 10:38PM4.46m | 11:05AM3.88m | 11:24PM4.39m | 11:50AM3.73m | 00:09AM4.20m | 12:36PM3.54m | 00:55AM3.91m | 1:23PM3.32m | 1:44AM3.57m | ||||||||
Low Tide | 3:45PM0.31m | 4:17AM-0.00m | 4:32PM0.20m | 5:05AM-0.11m | 5:16PM0.18m | 5:51AM-0.10m | 5:59PM0.24m | 6:35AM0.04m | 6:41PM0.39m | 7:19AM0.27m | 7:23PM0.61m | 8:02AM0.55m | 8:07PM0.85m | ||||||||
 | |  | | | | | | |  | | | | | | | | | | | | |
 | 5:09 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:18 | — | — |
 | — | — | 9:37 | — | — | 9:37 | — | — | 9:36 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 | — | — | 9:30 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 23 | 25 | 21 | 24 | 25 | 22 | 24 | 22 | 21 | 21 | 19 | 13 | 17 | 18 | 17 | 18 | 17 | 13 | 17 | 19 |
Feels °C | 18 | 18 | 20 | 21 | 20 | 20 | 20 | 20 | 16 | 18 | 17 | 15 | 9 | 12 | 15 | 14 | 15 | 12 | 9 | 12 | 15 |
Swell 1 Height (m) Direction Period (s) | N 4 | SW 18 | N 4 | ESE 3 | — | N 4 | ESE 3 | SW 7 | SSW 7 | NNW 3 | SSW 6 | SW 6 | SW 6 | SW 5 | SW 11 | SW 11 | S 10 | — | — | — | N 4 |
| kJ | 1 | 12 | 9 | 2 | — | 9 | 1 | 2 | 4 | 1 | 4 | 1 | 1 | 1 | 5 | 5 | 2 | — | — | — | 7 |
Swell 2 Height (m) Direction Period (s) | E 3 | W 14 | S 7 | S 6 | SW 7 | SW 6 | N 4 | SW 14 | SW 12 | SSW 6 | SW 12 | SW 13 | SW 11 | SW 11 | S 5 | — | — | — | — | — | W 8 |
| kJ | 1 | 4 | 1 | 1 | 2 | 2 | 1 | 8 | 6 | 4 | 6 | 6 | 5 | 5 | 1 | — | — | — | — | — | 1 |
Swell 3 Height (m) Direction Period (s) | SW 18 | W 11 | SW 14 | SW 16 | SW 16 | SW 13 | SW 6 | W 12 | SW 15 | SW 12 | — | — | — | — | — | — | — | — | — | — | W 18 |
| kJ | 12 | 2 | 7 | 10 | 10 | 7 | 1 | 3 | 8 | 6 | — | — | — | — | — | — | — | — | — | — | 6 |
Wind waves Height (m) Direction Period (s) | NE 3 | N 3 | E 3 | N 3 | N 3 | E 3 | E 3 | N 3 | N 4 | — | NNW 3 | N 3 | N 5 | NNW 5 | N 4 | N 5 | NNW 4 | N 4 | N 5 | NNW 4 | — |
| kJ | 2 | 3 | 6 | 1 | 2 | 6 | 2 | 5 | 10 | — | 9 | 6 | 21 | 40 | 23 | 25 | 31 | 15 | 24 | 25 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 134 | 178 | 257 | 313 | 364 | 257 | 297 | 178 | 218 | 296 | 377 | 325 | 325 | 316 | 257 | 252 | 257 | 325 | 364 | 257 | |
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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