
Surf Forecasts:
Rhosneigr surf forecast from 10 Sep 2026:
- Most powerful swell: Saturday 12 Sep, 4PM (local time) - 7ft (2.2m), 7s period, SW swell with 447 kJ wave energy.
Best Forecast Surf Conditions for Rhosneigr this week:
The most powerful waves expected at Rhosneigr in the next 16 days are 2.2m 7s and forecast to arrive on Saturday (Sep 12) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 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 | 4PM (Sat 12th Sep) | 7ft (2.2m) 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 outlook for Rhosneigr over the next 16 days is a tough one to write. Honestly, it’s mostly a write-off for quality surfing. The first real shot at anything rideable doesn’t pop up until late in the period, with a whole lot of poor surf conditions and gnarly wind in between.
The problem straight out of the gate is a messy combination of strong winds and onshore or cross-onshore flow. We get a burst of energy on the 10th with a 7ft swell from the SSW and moderate wave energy (437), but it’s being absolutely hammered by a 22 mph onshore wind. That’s just ugly, churned-up slop, not what you’re paddling out for. That same pattern repeats on the 12th with another 7ft SSW swell (447 energy units), again ruined by strong onshore wind.
There’s a brief lull into the middle of the month with knee-to-waist high mush and manageable wind, but the quality is still poor. The water temp on the 10th is 63°, which is a touch warmer than normal for the time of year – a small silver lining, but it doesn’t help the wave face.
Then we grind through a long spell of nothing worth mentioning. Thursday the 17th through Sunday the 20th is a dead zone with tiny waves and onshore junk. Monday the 21st is the only blip worth flagging, and that’s only for the glassiest of conditions. The morning sees 6ft of SW swell with 177 units of energy and... a glassy sea. Calm wind. That’s your standout – the only window in the whole run where the conditions line up for a clean surf. It's a small window though, because by the afternoon the wind swings and it’s messy again.
After that, it’s back to tiny, weak chop and cross-off breezes through to the 25th, with another small flurry of energy on the 24th (7ft swell, 307 energy units) but again, the wind is on it. For this spot, the swell direction is SW which is the ideal, but the wind just won't play ball.
Best Bet: If you’re desperate for a paddle, the Monday morning of the 21st is your only real shot. The glassy surface will make that 6ft SW swell look as good as it’s going to get, even if the period is short. For beginners, that 6ft on a glassy day might be manageable, but the afternoon onshore will make it a battle. For the rest of the run, save your wax. The setup here is more interesting for a kite session than a paddle in these conditions.
Rusty, out.
Short Range ForecastModerate rain (total 11mm), 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 Thu morning, light winds from the W by Fri afternoon). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Tue night. Very mild (max 18°C on Mon night, min 14°C on Tue night). Winds increasing (light winds from the WNW on Sun morning, fresh winds from the S by Mon night). | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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) | SSW 5 | SSW 7 | SW 7 | SW 6 | SW 6 | SSW 4 | SW 6 | SW 7 | SW 6 | SW 6 | SW 6 | SSW 4 | SSW 5 | SSW 6 | SSW 6 | SW 6 | NW 4 | SW 6 | SW 7 | W 11 | SW 6 |
Wave Graph | |||||||||||||||||||||
143 | 437 | 103 | 33 | 19 | 40 | 284 | 447 | 132 | 31 | 18 | 17 | 80 | 156 | 184 | 64 | 29 | 5 | 7 | 2 | 1 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross | cross-on | cross-on | on | on | cross-on | cross | on | cross-on | on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross | cross |
High Tide | 9:39PM4.37m | 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 | ||||||||
Low Tide | 4:02PM0.12m | 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 | ||||||||
6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — | 6:48 | — | — | 6:50 | — | — | 6:52 | — | — | |
— | 7:46 | — | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — | — | 7:35 | — | — | 7:31 | — | |
mm | — | 3 | — | — | — | 2 | 5 | — | 1 | — | — | — | 1 | — | 1 | — | — | 3 | — | — | — |
Temp °C | 16 | 17 | 17 | 14 | 14 | 16 | 16 | 17 | 18 | 15 | 15 | 16 | 17 | 17 | 18 | 15 | 15 | 15 | 14 | 15 | 15 |
Feels °C | 9 | 14 | 14 | 11 | 12 | 10 | 10 | 14 | 16 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 11 | 12 | 9 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | — | — | SW 7 | SW 6 | SW 6 | — | — | — | — | SW 6 | N 4 | — | — | — | — | SW 6 | SW 6 | SW 6 | SW 7 | SW 6 | SW 6 |
— | — | 103 | 33 | 19 | — | — | — | — | 31 | 10 | — | — | — | — | 64 | 24 | 5 | 7 | 1 | 1 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | NNW 4 | — | — | — | — | NW 4 | SW 6 | — | — | — | — | — | — | SW 11 | — | S 6 | — |
— | — | — | — | 3 | — | — | — | — | 14 | 18 | — | — | — | — | — | — | 5 | — | 1 | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | WNW 3 | — | — | — | — | — | — | — | — | W 11 | — |
— | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | 2 | — | |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 7 | W 4 | NW 4 | WNW 4 | SSW 4 | SW 6 | SW 7 | SW 6 | — | — | SSW 4 | SSW 5 | SSW 6 | SSW 6 | WNW 4 | NW 4 | NW 5 | NNW 6 | NNW 6 | NW 5 |
143 | 437 | 7 | 17 | 2 | 40 | 284 | 447 | 132 | — | — | 17 | 80 | 156 | 184 | 20 | 29 | 80 | 245 | 104 | 31 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 300 | 105 | 46 | 174 | 46 | 295 | 259 | 299 | 46 | 221 | 242 | 181 | 253 | 259 | 198 | 296 | 620 | 175 | 189 | 175 | 188 |
Best forecast wave conditions in Anglesy | |||||||||||||||||||||
Best forecast wave conditions in United Kingdom | |||||||||||||||||||||
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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.









