Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 11 Jul 2026:
- Most powerful swell: Saturday 11 Jul, 10PM (local time) - 3.5ft (1.0m), 5s period, N swell with 49 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 5s and forecast to arrive on Saturday (Jul 11) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Sunday (Jul 12) at 1AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Sat 11th Jul) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
Alright, Rusty here. Let's have a look at the local picture for Whistling Sands.
To be straight with you, it’s a tough run ahead. Whistling Sands (Porth Oer) is a sheltered, inconsistent little beginner spot, and right now it’s just not showing any life for the next couple of weeks. Every single entry in the forecast is stamped "poor surf conditions" with a score of zero. For a spot that's already inconsistent, this is a typical blank spell, and it’s not unusual for the area.
Looking at the immediate days, through this weekend and into next week, there’s barely a ripple. On Saturday (11 July) we’ve got a weak 3 ft swell from the NNW, but with a short period of 5 seconds and a 16 mph cross-onshore wind, it’s going to be messy and choppy. Wave energy is barely ticking over at 35. It’s not worth paddling out for.
Sunday (12 July) goes flat in the morning and the afternoon only offers a tiny 1 ft cross-shore bump from the NNE. The pattern of tiny, weak swell and cross-onshore wind continues right through the middle of the month. There are a few moments of clean wind, like Monday (13 July) morning with a light cross-offshore breeze, but there is no swell to push. The small windows of potential are completely empty.
Around Wednesday 23 July, we see a little spike in energy – the combined energy hits 160 on the Thursday morning with a 5 ft NNW swell, but it’s onshore wind again and the wave comment still reads poor. The period is short at 6 seconds, so it won’t have any shape to it.
The closest thing to a standout is the Saturday the 25th. The swell jumps to 8 ft (moderate energy at 399) from the west in the morning, and by the afternoon it’s 7 ft from the NW with a 7-second period and a clean cross-offshore wind from the SSW. That’s over 7 ft, so it’s only really for experienced surfers, and the period is too short for proper groundswell. For a sheltered break like this, it’s still going to be a messy, big, lumpy day. The setup looks more interesting for kite surfing than paddle surfing that afternoon.
The long-range at the end of the month shows the swell dropping away again. Honestly, there is nothing to chase. The water temp is sitting about 60°F, which is normal for this time of year, but you won’t feel it with no waves under you.
I wish I had better news, but the charts are clear: it’s a flat, poor-quality outlook for Whistling Sands all the way through to the 26th. Forecasts can always change, but right now, leave your board in the car.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Sun afternoon, min 16°C on Sun night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 13mm), heaviest on Wed night. Warm (max 26°C on Tue afternoon, min 18°C on Tue morning). Winds decreasing (fresh winds from the ENE on Tue night, calm by Thu night). | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | |||||||||||||||
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) | NNW 5 | NNW 5 | W 8 | NNW 5 | NNE 5 | NE 4 | NNE 4 | N 6 | NNE 5 | SW 18 | N 5 | SW 14 | SW 6 | SW 16 | SSW 7 | SW 14 | SW 14 | SSW 6 | SSW 6 | SSW 6 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 33 | 26 | 1 | 0 | 9 | 12 | 4 | 16 | 27 | 12 | 13 | 7 | 1 | 10 | 7 | 8 | 8 | 6 | 6 | 6 | 6 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-off | cross-off | cross | cross-off | cross-off | cross-on | cross-off | cross | cross-on | cross-off | cross | cross-on | cross | off | on | cross-off | cross-on | cross-on | cross-on |
High Tide | 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 | 10:19AM3.97m | 10:38PM4.46m | 11:05AM3.88m | 11:24PM4.39m | ||||||||
Low Tide | 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 | 5:05AM-0.11m | 5:16PM0.18m | 5:51AM-0.10m | 5:59PM0.24m | ||||||||
 | |  |  | | | | | | | |  | |  |  | |  |  | | | | |
 | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — |
 | — | — | 9:39 | — | — | 9:39 | — | — | 9:38 | — | — | 9:37 | — | — | 9:37 | — | — | 9:36 | — | — | 9:34 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 7 | — | — | 4 | — | — | — |
Temp °C | 21 | 24 | 24 | 23 | 27 | 24 | 20 | 24 | 24 | 22 | 26 | 25 | 22 | 25 | 23 | 20 | 21 | 20 | 19 | 20 | 19 |
Feels °C | 19 | 20 | 22 | 22 | 23 | 19 | 16 | 18 | 19 | 21 | 23 | 20 | 23 | 21 | 21 | 21 | 21 | 22 | 16 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | W 7 | W 8 | NNW 5 | NNW 5 | — | — | ESE 3 | — | SW 15 | ESE 3 | — | N 5 | ESE 3 | SSW 7 | N 5 | N 5 | N 5 | SSW 6 | SSW 6 | SSW 6 | SSW 6 |
| kJ | 1 | 1 | 24 | 4 | — | — | 2 | — | 8 | 1 | — | 11 | 3 | 5 | 15 | 4 | 2 | 3 | 4 | 4 | 3 |
Swell 2 Height (m) Direction Period (s) | W 8 | — | W 8 | — | — | — | SE 4 | W 19 | W 15 | N 5 | SW 18 | S 6 | N 3 | — | SSW 7 | SSW 6 | SSW 6 | N 4 | — | SW 12 | SW 13 |
| kJ | 1 | — | 1 | — | — | — | 1 | 7 | 4 | 1 | 12 | 1 | 1 | — | 4 | 4 | 3 | 1 | — | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | W 6 | — | — | — | N 6 | SW 15 | — | SW 18 | S 7 | SW 14 | SW 6 | SW 16 | SW 13 | SW 14 | SW 14 | SW 12 | SW 12 | W 7 | — |
| kJ | — | — | 1 | — | — | — | 1 | 8 | — | 12 | 1 | 7 | 1 | 10 | 7 | 8 | 8 | 6 | 6 | 1 | — |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 5 | E 3 | E 3 | NNE 5 | NE 4 | NNE 4 | N 6 | NNE 5 | NNE 4 | N 5 | E 3 | E 3 | N 5 | E 3 | ESE 3 | — | SSW 3 | — | — | NNW 2 |
| kJ | 33 | 26 | 2 | 1 | 9 | 12 | 4 | 16 | 27 | 4 | 13 | 6 | 1 | 4 | 3 | 1 | — | 1 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 218 | 264 | 218 | 257 | 178 | 349 | 388 | 365 | 257 | 134 | 113 | 257 | 178 | 178 | 297 | 297 | 397 | 284 | 324 | 639 | 284 |
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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