Surf Forecasts:
Rhosneigr surf forecast from 1 Sep 2026:
- Most powerful swell: Wednesday 2 Sep, 1PM (local time) - 7ft (2.1m), 7s period, SSW swell with 373 kJ wave energy.
Best Forecast Surf Conditions for Rhosneigr this week:
The most powerful waves expected at Rhosneigr in the next 16 days are 2.1m 7s and forecast to arrive on Wednesday (Sep 02) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 5s period and expected on Saturday (Sep 05) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Wed 2nd Sep) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s be straight with you – the next couple of weeks at Rhosneigr are a real mixed bag, and you’ll have to be patient. We’re staring down a long, bleak stretch of onshore junk before a glimmer of hope shows up late in the game.
The problem right now is wind. For the first ten days or so, we’ve got a solid SW/SSW swell running, but the wind is almost always on it or cross-onshore, and it’s fresh to strong. That means lumpy, choppy, and just plain messy conditions. The water temp is sitting at 63°F, which feels a touch warmer than normal for this time of year, but that’s about the only thing that’s comfortable.
Tuesday, September 1st through to Thursday, September 10th is a write-off. Seriously. We’re looking at poor surf conditions day after day. The swell hangs around waist to chest high mostly (3 ft to 6 ft), and the combined energy (87 to 628) is just getting chewed up by the wind. There’s one moment on Monday, September 7th morning where the wind goes light and variable, but the swell is a pathetic 0.7 ft from the WSW with a long 14-second period – that’s just a lake. Not worth a paddle.
Then we get a bit of a window. Friday, September 11th morning, the wind finally swings around to an ENE cross-offshore, and the conditions go clean. The problem? The swell is tiny, only 2 ft. It’s surfable, but just barely. That afternoon, a clean cross-off continues but the swell drops even more to 2 ft. Saturday, September 12th is even smaller, with a piddly 0.7 ft swell, though it’s clean and even goes offshore in the afternoon. You’d be on a longboard hoping for a ripple.
Now, here’s the standout. Sunday, September 13th is the one to circle on your calendar. The morning brings a clean 6 ft swell from the south with a 6-second period, and the wind is a light cross-offshore from the ENE. The combined energy sits at 227 – moderate and punchy. But the real treat is the afternoon. The wind goes fully offshore from the ENE at 12 mph, and the swell bumps up to a solid 7 ft from the SSW. That’s a serious amount of power, with a combined energy of 471. This is going to be good, clean, offshore surf. The 7 ft size is getting into expert territory, so if you’re not comfortable on a bigger wave, be careful. The period is a modest 7 seconds, so it’s a windswell, not a groundswell, but with that offshore wind, it’ll shape up nicely.
Monday, September 14th is still worth a look. The morning is glassy – 0 mph wind – with a 4 ft swell from the SSW. The afternoon stays glassy with a 6 ft swell. The energy is moderate (179 and 195), and the conditions will be clean, but the waves are just ordinary. Not a standout, but a nice clean session if you’re around.
After that, from Tuesday, September 15th onwards, we slide back into onshore junk and weak surf, closing the forecast window.
So, the one true standout is the Sunday, September 13th afternoon session at Rhosneigr. That’s the one to aim for. The morning of the 13th is also good, but the afternoon is the pick. The rest of the 16 days is mostly a waiting game.
Rusty.
Short Range ForecastHeavy rain (total 25mm), heaviest during Wed morning. Very mild (max 18°C on Wed afternoon, min 14°C on Fri morning). Mainly fresh winds. | Days 5-7 Weather SummarySome drizzle, heaviest during Sun night. Very mild (max 18°C on Sun afternoon, min 13°C on Fri night). Mainly fresh winds. | |||||||||||||||||||
Tue 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||
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) | SSW 5 | SW 6 | SSW 6 | SSW 7 | SW 7 | SW 7 | SSW 5 | SW 6 | WSW 5 | WSW 5 | W 5 | W 5 | SW 5 | SSW 4 | SSW 5 | SSW 5 | SW 6 | SW 4 | SW 5 | SW 6 |
Wave Graph | ||||||||||||||||||||
87 | 59 | 194 | 254 | 221 | 128 | 83 | 91 | 66 | 55 | 102 | 34 | 14 | 10 | 59 | 92 | 101 | 19 | 143 | 237 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | cross-off | on | cross-on |
High Tide | 00:40AM4.07m | 1:01PM3.73m | 1:22AM3.82m | 1:47PM3.51m | 2:14AM3.50m | 2:44PM3.26m | 3:24AM3.18m | 4:06PM3.08m | 5:04AM3.02m | 5:48PM3.13m | 6:46AM3.12m | 7:12PM3.41m | ||||||||
Low Tide | 7:16PM0.42m | 7:43AM0.43m | 7:59PM0.63m | 8:28AM0.72m | 8:50PM0.88m | 9:25AM1.02m | 9:57PM1.11m | 10:40AM1.25m | 11:26PM1.19m | 12:11PM1.26m | 00:57AM0.99m | 1:29PM1.03m | 2:07AM0.62m | |||||||
— | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | |
8:07 | — | — | 8:06 | — | — | 8:04 | — | — | 8:00 | — | — | 7:59 | — | — | 7:55 | — | — | 7:53 | — | |
mm | — | 4 | 8 | — | — | — | 1 | 12 | — | — | — | — | — | — | — | — | 1 | — | — | 2 |
Temp °C | 16 | 17 | 16 | 18 | 18 | 17 | 17 | 15 | 15 | 17 | 15 | 14 | 15 | 14 | 16 | 18 | 17 | 15 | 15 | 16 |
Feels °C | 11 | 14 | 12 | 15 | 16 | 14 | 13 | 14 | 8 | 11 | 9 | 9 | 11 | 11 | 10 | 12 | 12 | 14 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | — | — | — | SW 16 | SW 15 | SW 14 | — | WNW 4 | SW 14 | SW 14 | SW 14 | NNW 5 | NW 4 | SW 13 | SW 13 | SW 13 | SW 12 | WNW 4 | — | — |
— | — | — | 10 | 9 | 8 | — | 3 | 8 | 8 | 8 | 5 | 3 | 7 | 7 | 6 | 6 | 1 | — | — | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 14 | — | — | — | SW 14 | NNW 5 | — | — | — | SW 16 | WSW 14 | — | — |
— | — | — | — | — | — | — | 8 | — | — | — | 7 | 2 | — | — | — | 10 | 19 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SW 14 | SW 13 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | — | 7 | 7 | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SSW 5 | SW 6 | SSW 6 | SSW 7 | SW 7 | SW 7 | SSW 5 | SW 6 | WSW 5 | WSW 5 | W 5 | W 5 | SW 5 | SSW 4 | SSW 5 | SSW 5 | SW 6 | SW 4 | SW 5 | SW 6 |
87 | 59 | 194 | 254 | 221 | 128 | 83 | 91 | 66 | 55 | 102 | 34 | 14 | 10 | 59 | 92 | 101 | 17 | 143 | 237 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 300 | 253 | 257 | 259 | 296 | 296 | 497 | 168 | 300 | 341 | 315 | 187 | 242 | 174 | 235 | 183 | 233 | 7 | 253 | 250 |
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)
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.










