Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 13 Jul 2026:
- Most powerful swell: Monday 13 Jul, 7PM (local time) - 3.5ft (1.1m), 5s period, N swell with 54 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 1.1m 5s and forecast to arrive on Monday (Jul 13) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Thursday (Jul 16) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Mon 13th Jul) | 3.5ft (1.1m) 5s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
The Lowdown
Right then, folks, Rusty here. Let’s have a look at what’s coming up for Whistling Sands (Porth Oer).
To be straight with you, the next 16 days are a tough watch. We’ve got a long, dry spell of nothing much happening. The first few days are a write-off, and we don’t get a sniff of anything decent until the very end of the run. It’s one of those periods where the forecast is just cruel.
From now through to the 23rd of July, there’s barely a ripple worth paddling for. The swell is tiny, with periods so short you’d be bobbing around like a cork. The wind is mostly cross or onshore, messy and lumpy, so forget about any clean lines. For a spot that’s already sheltered and inconsistent, this is a real flat spell. By the 22nd and 23rd, we’ve got strong winds and rain, but still no real swell to back it up.
Now, finally, we get a little flicker of hope. On the morning of July 24th, we see a 4ft swell pushing in from the southwest. The combined energy is moderate (123), which is the best we’ll see all period. The wind is light, only 3 mph cross-on, so it’ll be rideable, but don’t expect perfection. The period is short at 6 seconds, so it’ll be a bit crumbly and fat. That afternoon, it drops to 4ft (108 energy), still cross-shore with a light breeze. It’s not a standout, but it’s the only game in town.
The 27th and 28th bring some cleaner conditions with offshore and cross-offshore winds, but the swell is small and weak. The 28th morning has a 3ft swell from the west-southwest with a moderate 101 energy, but the wind is a fresh 19 mph cross-off, so it’ll be choppy and difficult to enjoy.
The water temperature sits around 61°F when we first see a wave, which is about 2°F warmer than normal for the time of year – a nice little bonus for the skin.
To be honest, there’s no true standout here. If you’re desperate for a paddle, the 24th of July is your best bet, but keep your expectations on the floor. The setup is so weak and inconsistent that it’s not worth getting excited about. For a sheltered spot like this, a blank run is more normal than not, so don’t throw your board in the bin just yet. Forecasts can change.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed night, min 16°C on Mon morning). Winds decreasing (fresh winds from the NNE on Mon afternoon, light winds from the N by Wed morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Thu afternoon, min 14°C on Sat morning). Winds decreasing (fresh winds from the N on Thu afternoon, light winds from the NNE by Fri morning). | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | |||||||||||||||
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) | SE 4 | N 4 | NNE 4 | NNE 4 | N 4 | SW 14 | S 6 | SW 16 | SW 13 | SW 14 | N 3 | N 4 | SW 7 | N 3 | N 3 | S 11 | SW 11 | N 3 | SW 11 | N 4 | N 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1 | 9 | 16 | 12 | 17 | 7 | 1 | 10 | 7 | 8 | 8 | 10 | 7 | 6 | 6 | 2 | 5 | 5 | 5 | 4 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-off | cross | cross-on | cross-off | cross | cross-on | cross-off | cross | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:13PM3.98m | 8:41AM3.88m | 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 | ||||||||
Low Tide | 2:55PM0.48m | 3:26AM0.22m | 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 | ||||||||
 | |  | | | | | | | | | | | | |  | | | | | | |
 | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — |
 | — | — | 9:38 | — | — | 9:37 | — | — | 9:37 | — | — | 9:36 | — | — | 9:34 | — | — | 9:32 | — | — | 9:31 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 22 | 23 | 21 | 23 | 25 | 22 | 25 | 26 | 23 | 24 | 21 | 21 | 23 | 21 | 15 | 18 | 18 | 15 | 18 | 18 |
Feels °C | 16 | 16 | 18 | 19 | 18 | 20 | 21 | 20 | 21 | 21 | 18 | 15 | 18 | 18 | 16 | 11 | 13 | 13 | 11 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | NNE 3 | — | SW 15 | SW 18 | SW 18 | N 5 | ESE 3 | SW 7 | N 4 | SW 6 | SW 6 | SSW 7 | NNW 4 | SSW 6 | SSW 6 | N 4 | SW 6 | SW 6 | N 5 | SW 5 | — |
| kJ | 2 | — | 8 | 12 | 12 | 21 | 2 | 2 | 6 | 1 | 1 | 5 | 1 | 4 | 4 | 2 | 1 | 1 | 7 | 1 | — |
Swell 2 Height (m) Direction Period (s) | SE 4 | W 19 | W 15 | — | W 14 | SW 14 | N 4 | SW 16 | SSW 6 | SW 14 | SW 14 | SW 12 | SW 7 | SW 12 | SW 13 | SW 6 | SW 11 | SW 11 | SW 5 | S 10 | — |
| kJ | 1 | 7 | 4 | — | 4 | 7 | 1 | 10 | 4 | 8 | 8 | 6 | 7 | 6 | 6 | 1 | 5 | 5 | 1 | 2 | — |
Swell 3 Height (m) Direction Period (s) | N 6 | W 15 | — | W 14 | W 11 | S 7 | S 6 | — | SW 13 | — | — | SW 15 | — | — | — | S 11 | — | — | SW 11 | — | — |
| kJ | 1 | 4 | — | 4 | 2 | 1 | 1 | — | 7 | — | — | 8 | — | — | — | 2 | — | — | 5 | — | — |
Wind waves Height (m) Direction Period (s) | E 3 | N 4 | NNE 4 | NNE 4 | N 4 | E 4 | ENE 3 | N 2 | ESE 4 | E 3 | N 3 | N 4 | — | N 3 | N 3 | N 3 | N 4 | N 3 | — | N 4 | N 4 |
| kJ | 2 | 9 | 16 | 7 | 17 | 9 | 5 | 2 | 24 | 2 | 4 | 10 | — | 5 | 6 | 1 | 1 | 2 | — | 4 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 397 | 178 | 252 | 134 | 178 | 252 | 134 | 178 | 297 | 313 | 178 | 218 | 297 | 324 | 316 | 325 | 325 | 310 | 310 | 380 | 310 |
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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