Surf Forecasts:
Rhosneigr surf forecast from 25 Aug 2026:
- Most powerful swell: Friday 28 Aug, 7AM (local time) - 3.5ft (1.1m), 7s period, SSW swell with 125 kJ wave energy.
Best Forecast Surf Conditions for Rhosneigr this week:
The most powerful waves expected at Rhosneigr in the next 16 days are 1.1m 7s and forecast to arrive on Friday (Aug 28) at 7AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Tuesday (Aug 25) at 10PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Fri 28th Aug) | 3.5ft (1.1m) 7s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Alright folks, let’s talk about what’s going on. The next couple of weeks are a real slow burn. We’re starting off flat as a pancake, so don’t even think about paddling out until later. After that, things get interesting but only at certain times.
Week One – A long quiet spell
Right now through Thursday the 27th, there’s nothing. Swell is tiny at 0.3ft to 0.7ft, combined energy is weak (3 to 24), and the angles are off. Winds are light but variable. Wednesday morning has a clean look with some cross-offshore flow, but the swell is just too small to push anything.
Friday the 28th shows a pulse to 4ft from the SSW, with energy jumping to 207 – moderate. But the wind is onshore from the southwest at 15 mph, ruining any chance of clean surf. It’ll be lumpy. Saturday and Sunday are poor – small swell and cross-onshore winds. Sunday afternoon gets nasty with 25 mph SSW winds, so stay out.
We’ve got a gap of no decent surf from now until the morning of Wednesday September 2nd. That’s a long stretch.
Wednesday September 2nd – The first real look
Finally. Wednesday afternoon sees a 7ft SSW swell with a 6-second period. Combined energy is 341, solid moderate. And the wind? Glassy – flat calm. That’s gold for Rhosneigr – clean, glassy waves. The swell is 7ft, so it’s getting into the ‘too big for beginners’ range but not expert-only. The water is running about 2°C warmer than average, around 64°F, so it feels nice. The optimum direction is SW and the swell is coming from SW – perfect. This is the standout.
Thursday September 3rd – Still okay
Thursday morning has a 5ft NW swell with a 6-second period, energy at 262. The wind is north at 9 mph, cross-offshore, so clean waves. The afternoon gets a cross-onshore breeze and the swell drops, so morning is your call.
Friday September 4th – Big and messy for experts
Friday morning sees 8ft from the SSW with energy at 635 – strong. But the wind is cross-shore from the NW at 15 mph, so chopped up. By afternoon, the swell pushes to 10ft from the SW with energy at 1269 – very strong. Still cross-shore wind, and only for experts.
Saturday September 5th to Monday September 7th – Mixed
Saturday and Sunday stay in the 5ft to 6ft range, but the wind stays cross-shore and the period is short. Not great. Then Monday September 7th turns huge – 16ft from the SW with a 10-second period and combined energy hitting 4648. That’s very strong. The wind is offshore from the ENE at 9 mph, so clean, but 16ft is for experts only. The same afternoon sees 18ft – again, only for the brave.
After that, the end of the forecast drops back to small, choppy surf with onshore wind. The real standout is Wednesday September 2nd afternoon at Rhosneigr – glassy, clean, 7ft SW swell, and the water is warmer than average. That’s the one.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Tue night. Warm (max 22°C on Tue afternoon, min 13°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 8mm), mostly falling on Sat afternoon. Very mild (max 17°C on Thu afternoon, min 15°C on Thu night). Winds increasing (calm on Thu afternoon, fresh winds from the S by Sun morning). | |||||||||||||||||||
Mon 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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 9 | SW 13 | SW 13 | SW 13 | SSW 8 | SSW 8 | SSW 8 | SSW 7 | SSW 7 | SSW 7 | SW 8 | SSW 7 | SSW 7 | SSW 7 | WNW 5 | SW 6 | SSW 6 | SSW 8 | SSW 8 | SW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 3 | 7 | 7 | 7 | 7 | 13 | 12 | 5 | 6 | 4 | 16 | 118 | 70 | 37 | 59 | 23 | 6 | 38 | 39 | 26 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | off | cross-off | cross-off | cross-on | off | glassy | glassy | on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:24PM3.28m | 8:49AM3.20m | 9:03PM3.55m | 9:25AM3.40m | 9:35PM3.81m | 9:55AM3.58m | 10:04PM4.02m | 10:23AM3.73m | 10:32PM4.18m | 10:51AM3.84m | 11:00PM4.28m | 11:19AM3.92m | 11:30PM4.30m | |||||||
Low Tide | 3:02AM0.96m | 3:12PM0.93m | 3:39AM0.68m | 3:47PM0.67m | 4:13AM0.41m | 4:20PM0.46m | 4:45AM0.20m | 4:53PM0.30m | 5:18AM0.06m | 5:26PM0.21m | 5:52AM0.00m | 6:01PM0.20m | ||||||||
 |  |  | |  |  | | |  |  | | | | | | | | |  |  | |
 | — | — | 6:13 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:20 | — | — | 6:22 | — | — |
 | 8:27 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:13 | — |
mm | — | — | — | — | 1 | — | — | 1 | 1 | 1 | — | — | 1 | 2 | — | 2 | 1 | 1 | 4 | 6 |
Temp °C | 20 | 18 | 19 | 22 | 20 | 19 | 20 | 19 | 18 | 17 | 16 | 16 | 17 | 17 | 17 | 17 | 17 | 17 | 17 | 15 |
Feels °C | 17 | 14 | 17 | 19 | 16 | 17 | 20 | 18 | 19 | 16 | 14 | 12 | 16 | 16 | 15 | 16 | 16 | 12 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | NE 4 | SW 13 | SW 13 | SW 13 | SSW 8 | SSW 8 | SSW 4 | SSW 7 | NNE 4 | NNE 4 | SW 8 | SSW 7 | SSW 7 | SSW 7 | SW 6 | NW 5 | SW 4 | SSW 8 | SSW 8 | SW 7 |
| kJ | 1 | 7 | 7 | 7 | 7 | 13 | 5 | 5 | 2 | 1 | 16 | 118 | 70 | 30 | 25 | 17 | 4 | 38 | 39 | 26 |
Swell 2 Height (m) Direction Period (s) | SW 9 | SW 9 | — | — | S 13 | NE 5 | SSW 8 | — | SSW 7 | SSW 7 | — | S 12 | — | — | — | — | SSW 6 | SW 5 | NNW 5 | N 4 |
| kJ | 3 | 3 | — | — | 3 | 4 | 12 | — | 5 | 4 | — | 3 | — | — | — | — | 6 | 4 | 8 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | SW 8 | SW 8 | S 13 | S 12 | NE 4 | S 12 | SW 12 | S 12 | — | — | — | — | — | — | — | — | WNW 3 | — |
| kJ | — | — | 3 | 3 | 3 | 3 | 1 | 3 | 6 | 3 | — | — | — | — | — | — | — | — | 2 | — |
Wind waves Height (m) Direction Period (s) | — | E 3 | ENE 5 | NE 5 | ENE 5 | S 4 | — | — | — | — | SSW 4 | SSW 7 | WNW 3 | NW 4 | WNW 5 | SW 6 | NW 4 | NW 4 | — | — |
| kJ | — | 8 | 13 | 16 | 45 | 8 | — | — | — | — | 11 | 86 | 1 | 37 | 59 | 23 | 6 | 24 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 257 | 253 | 256 | 256 | 235 | 262 | 262 | 283 | 256 | 256 | 158 | 277 | 46 | 259 | 253 | 256 | 253 | 253 | 253 | 277 |
Best forecast wave conditions in Anglesy | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rhosneigr surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Rhosneigr Surf forecast
The above surf forecast table for Rhosneigr provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rhosneigr can be found by selecting the local surf guide option on the grey menu. Our Rhosneigr 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 (Rhosneigr) 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 Rhosneigr 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 Anglesy? If you are looking for accommodation near Rhosneigr, camping, hotels and holiday cottages in Anglesy, consider staying in Anglesey which is 2 km (1 miles) away. Other places in and around Anglesy where you can find information about places to rent, and car hire include Holyhead which is 12 km (7 miles) away, Bangor, Porthmadog and Llandudno.
Nearest