Surf Forecasts:
Whistling Sands (Porth Oer) surf forecast from 1 Aug 2026:
- Most powerful swell: Wednesday 5 Aug, 7PM (local time) - 4.5ft (1.3m), 6s period, SW swell with 128 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 1.3m 6s and forecast to arrive on Wednesday (Aug 05) 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 1.1m 5s period and expected on Wednesday (Aug 05) at 4AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7PM (Wed 5th Aug) | 4.5ft (1.3m) 6s |
Table - best surf conditions forecast for Whistling Sands (Porth Oer) over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s look at the next 16 days for Whistling Sands (Porth Oer). It’s a sheltered beginner spot, but the news is not good.
We start with a big gap of nothing. The first recommendation is a zero. The combined swell energy is weak at 13 on Saturday, August 1st, with a tiny 0.4m south-west swell and a short 5-second period. The wind is cross-onshore, so it’s choppy. That’s how it’s going to be.
The entire first week is flat. Swell is under 0.5m, periods are short, and the energy figures are in the single digits or low teens. The wind is all over the place, but it doesn’t matter because there’s no wave. The water temperature is 60°F, which is normal for this time of year.
The only faint glimmer is on Wednesday, August 5th afternoon. Swell hits 1.2m from the south-west, with a 6-second period and the combined energy climbs to 113 (moderate wave energy). The wind is cross-off and clean. But even then, it’s still “poor surf conditions” – too small and weak to be worthwhile.
After that, it’s back to flat. By the end of the 16 days, the swell is 0.1m and the energy is 2 or 3. This spot is inconsistent, and right now it’s a total washout.
No standout sessions here. If you’re a beginner, there’s nothing to ride. If you’re an expert, there’s nothing to chase. It’s a blank run. Forecasts can change, but for now, stay home.
Rusty.
Short Range ForecastSome drizzle, heaviest during Mon night. Very mild (max 19°C on Mon morning, min 13°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Very mild (max 19°C on Tue morning, min 13°C on Thu morning). Winds decreasing (fresh winds from the NW on Thu morning, light winds from the NNW by Thu night). | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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 5 | NW 4 | WSW 4 | WSW 4 | SW 8 | WSW 9 | SW 8 | WSW 8 | SW 8 | SW 8 | SW 7 | SW 4 | W 13 | SW 6 | SW 7 | SW 7 | WSW 6 | SW 5 | SW 5 | SW 5 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 3 | 6 | 3 | 3 | 17 | 18 | 27 | 32 | 21 | 19 | 0 | 3 | 106 | 43 | 54 | 26 | 23 | 10 | 6 | 5 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | off | off | cross-on | cross | off | on | glassy | off | cross-off | cross-off | cross-off | cross-off | on | on | cross-on | cross-on | on | glassy | glassy |
High Tide | 10:45AM3.65m | 11:01PM4.09m | 11:19AM3.67m | 11:35PM4.06m | 11:55AM3.63m | 00:13AM3.95m | 12:35PM3.54m | 00:55AM3.78m | 1:21PM3.39m | 1:44AM3.54m | 2:16PM3.21m | 2:46AM3.30m | 3:26PM3.07m | ||||||||
Low Tide | 5:33PM0.45m | 6:04AM0.36m | 6:06PM0.52m | 6:38AM0.44m | 6:40PM0.64m | 7:14AM0.58m | 7:17PM0.80m | 7:54AM0.76m | 8:01PM0.97m | 8:43AM0.96m | 9:00PM1.14m | 9:50AM1.13m | 10:26PM1.23m | ||||||||
 |  |  | |  |  | | |  | | |  |  | |  | | | | | | | |
 | 5:35 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:46 | — | — |
 | — | — | 9:13 | — | — | 9:10 | — | — | 9:08 | — | — | 9:07 | — | — | 9:06 | — | — | 9:04 | — | — | 9:01 |
mm | — | — | — | — | — | — | — | — | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 13 | 15 | 15 | 16 | 17 | 17 | 19 | 18 | 19 | 19 | 19 | 19 | 18 | 19 | 18 | 14 | 15 | 17 | 14 | 16 | 16 |
Feels °C | 10 | 13 | 13 | 15 | 14 | 12 | 18 | 16 | 18 | 17 | 18 | 16 | 14 | 16 | 15 | 10 | 14 | 14 | 13 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | NW 4 | NW 4 | WSW 4 | WSW 4 | SW 8 | WSW 9 | SW 8 | WSW 8 | SW 8 | SW 8 | SW 7 | — | W 13 | SW 13 | SW 5 | SW 7 | WSW 6 | SW 5 | SW 5 | SW 5 | SW 5 |
| kJ | 4 | 2 | 6 | 1 | 3 | 8 | 18 | 27 | 32 | 21 | 19 | — | 3 | 7 | 38 | 54 | 26 | 23 | 10 | 4 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 5 | SW 9 | SW 9 | SW 8 | SW 4 | WSW 9 | N 4 | — | N 5 | — | — | — | — | — | SW 7 | SW 13 | NNW 5 | SW 12 | NNW 5 | — | SW 12 |
| kJ | 6 | 3 | 3 | 3 | 1 | 17 | 3 | — | 2 | — | — | — | — | — | 43 | 7 | 13 | 6 | 2 | — | 5 |
Swell 3 Height (m) Direction Period (s) | W 10 | W 9 | — | — | — | — | NNW 3 | — | — | — | — | — | — | — | SW 13 | — | SW 12 | NNW 4 | SW 12 | SW 12 | — |
| kJ | 2 | 2 | — | — | — | — | 1 | — | — | — | — | — | — | — | 7 | — | 6 | 2 | 6 | 6 | — |
Wind waves Height (m) Direction Period (s) | NW 4 | SW 4 | — | — | — | NNE 4 | ESE 3 | NNW 3 | — | SSE 2 | SSW 3 | SW 4 | SSW 6 | SW 6 | NW 3 | NNW 5 | — | — | — | NW 4 | — |
| kJ | 5 | 3 | — | — | — | 10 | 2 | 1 | — | 1 | 2 | 31 | 61 | 106 | 5 | 28 | — | — | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 307 | 308 | 218 | 288 | 291 | 132 | 106 | 145 | 113 | 250 | 298 | 314 | 190 | 2320 | 130 | 300 | 339 | 148 | 298 | 292 | 288 |
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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