Surf Forecasts:
Rhosneigr surf forecast from 11 Sep 2026:
- Most powerful swell: Saturday 12 Sep, 10AM (local time) - 8ft (2.4m), 7s period, SW swell with 505 kJ wave energy.
Best Forecast Surf Conditions for Rhosneigr this week:
The most powerful waves expected at Rhosneigr in the next 16 days are 2.4m 7s and forecast to arrive on Saturday (Sep 12) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Wednesday (Sep 16) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Sat 12th Sep) | 8ft (2.4m) 7s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Alright folks, Rusty here.
First up, this is a gloomy outlook for Rhosneigr. The next couple of weeks are looking like a write-off. That's a long gap to get through before anything even remotely worth paddling out for shows up.
Right now, through to the end of September, it’s a mess. On the 11th, we’ve got tiny 2ft to 2ft SW windswell with a short period of 6 seconds and weak energy (51). The wind is all over the shop, mostly cross or cross-on, so you're looking at bumpy, poor surf. The 12th sees a jump in size to 8ft from the SW on the morning, but with strong onshore winds at 22 mph, it’s just blown out. That energy jumps to a moderate 505 but the quality is zero.
We’ve got a solid stretch of nothing worth mentioning from the 13th all the way through the morning of the 24th. A few days see decent swell size—like the 19th with 7ft SW swell—but it’s all blown out with onshore winds and poor conditions. Every single day is marked as "poor surf conditions" until the afternoon of the 21st, where it nudges up to "marginal." The 24th shows 8ft from the WNW with some energy (522), but it’s still just marginal.
Then, finally, a glimmer. On the 25th of September, we see a big change. The morning is glassy with an 12ft swell from the SW and a period of 8 seconds. The combined energy is a huge 1869, which is strong. The wind is light out of the NW, and conditions are described as glassy. Now, that’s a big wave. At 12ft, this is expert territory. It’s a bit of a beast, and for a beach break, a long-period groundswell like this could be lining up a bit straight, but with glassy conditions, the shape could be incredible. The afternoon sees similar size, 10ft from the SW with a 9 second period and a massive 2125 energy, with light cross-shore wind. The 26th still has size at 10ft from the SW, but with a clean light offshore from the NNE and energy at 964. This is the one to circle. If you’re an experienced surfer and you can handle some size, this could be the standout session of the month at Rhosneigr.
Other than that, it’s a quiet, poor run. The setup looks more interesting for kite surfing than paddle surfing on most of those windy, choppy days.
Stay patient.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Sat morning. Very mild (max 18°C on Sat night, min 14°C on Thu night). Winds decreasing (strong winds from the SSW on Fri night, calm by Sat night). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Tue morning. Very mild (max 18°C on Mon afternoon, min 14°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 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) | SW 6 | SW 6 | SSW 5 | SW 7 | SW 7 | SW 6 | SSW 6 | SW 6 | SSW 4 | SW 5 | SSW 6 | SSW 6 | SW 6 | SSW 6 | SW 6 | SW 6 | WNW 4 | W 4 | WSW 4 | SW 4 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 34 | 19 | 52 | 505 | 363 | 123 | 26 | 18 | 14 | 76 | 143 | 143 | 79 | 22 | 5 | 6 | 14 | 9 | 29 | 16 | 15 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross-on | on | on | cross |
High Tide | 10:06AM4.03m | 10:17PM4.51m | 10:42AM4.11m | 10:54PM4.52m | 11:16AM4.11m | 11:30PM4.39m | 11:50AM4.02m | 00:07AM4.16m | 12:24PM3.85m | 00:44AM3.84m | 1:00PM3.60m | 1:24AM3.48m | 1:40PM3.31m | 2:09AM3.11m | |||||||
Low Tide | 4:31AM-0.30m | 4:43PM-0.03m | 5:10AM-0.34m | 5:22PM-0.06m | 5:48AM-0.24m | 5:59PM0.01m | 6:23AM-0.01m | 6:35PM0.19m | 6:58AM0.30m | 7:12PM0.44m | 7:33AM0.66m | 7:49PM0.75m | 8:09AM1.03m | 8:30PM1.08m | |||||||
 |  |  |  | | | |  |  | | | |  | | | | |  | | | | |
 | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | 6:54 | — | — |
 | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — | — | 7:35 | — | — | 7:31 | — | — | 7:30 | — |
mm | — | — | 2 | 8 | — | 1 | — | — | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 16 | 17 | 18 | 17 | 17 | 17 | 17 | 18 | 18 | 16 | 16 | 15 | 14 | 14 | 14 | 15 | 16 | 16 |
Feels °C | 11 | 12 | 8 | 11 | 15 | 18 | 17 | 16 | 15 | 15 | 14 | 15 | 12 | 12 | 10 | 7 | 7 | 9 | 8 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | — | — | — | SW 6 | SSW 6 | SW 6 | — | — | — | SW 12 | SW 6 | SSW 6 | SW 6 | SW 6 | NNW 6 | NNW 4 | — | SW 4 | SW 6 |
| kJ | 34 | 19 | — | — | — | 123 | 26 | 18 | — | — | — | 6 | 79 | 20 | 5 | 6 | 40 | 6 | — | 16 | 15 |
Swell 2 Height (m) Direction Period (s) | — | WNW 4 | — | — | — | — | NW 4 | NNW 4 | — | — | — | — | — | — | S 11 | — | SW 6 | — | — | — | — |
| kJ | — | 3 | — | — | — | — | 5 | 3 | — | — | — | — | — | — | 2 | — | 1 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | NNW 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 6 | — | — | — | — |
| kJ | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 4 | NW 4 | SSW 5 | SW 7 | SW 7 | — | — | — | SSW 4 | SW 5 | SSW 6 | SSW 6 | — | WNW 4 | NW 6 | NNW 6 | WNW 4 | W 4 | WSW 4 | NW 4 | NW 3 |
| kJ | 17 | 4 | 52 | 505 | 363 | — | — | — | 14 | 76 | 143 | 143 | — | 22 | 133 | 190 | 14 | 9 | 29 | 3 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 174 | 46 | 233 | 259 | 242 | 94 | 46 | 183 | 253 | 253 | 259 | 181 | 585 | 519 | 340 | 880 | 543 | 259 | 259 | 282 | 296 |
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)
Recent Eyeball Surf Reports for Wales - Anglesy
‘Porth Neigwl: Choppy waves hadn't tidied much (from what I could see in the dark.’
Expand
<
>
View all
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