Surf Forecasts:
Rhosneigr surf forecast from 6 Sep 2026:
- Most powerful swell: Monday 7 Sep, 10PM (local time) - 8ft (2.4m), 6s period, SW swell with 461 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 6s and forecast to arrive on Monday (Sep 07) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Wednesday (Sep 09) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10PM (Mon 7th Sep) | 8ft (2.4m) 6s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Right then folks, Rusty here. Let's have a look at what Rhosneigr has in store for us over the next couple of weeks. Gotta be honest, it's a grim outlook for the most part. There's a long, dry spell of poor conditions ahead, with hardly anything worth paddling out for until well into the second week. The water temp is sitting at 63°, which is a touch warmer than normal for this time of year, so you won't need a thick suit if you do brave it.
Looking at Sunday the 6th, it's a write-off. We've got a cross-onshore wind and a messy 4ft to 5ft swell with a short period. The wave energy is moderate at best (104 to 162), but the conditions are just too lumpy. Monday the 7th is no better with onshore winds and even less swell. Tuesday the 8th brings a bigger 7ft swell, but it's accompanied by a strong cross-onshore wind making it a complete mess. The energy is building (309), but it's not for paddling. Honestly, with these winds and poor quality, this setup might be more interesting for kite surfing than paddle surfing.
The pattern of cross-onshore winds and poor quality continues day after day. Wednesday the 9th, Thursday the 10th, Friday the 11th, all the same story – lumpy, choppy, and not worth your time. Saturday the 12th is another strong wind day with 6ft swell, but again, the wind kills it. We're looking at a solid stretch of about a week with no real recommendation.
Things get a little more interesting heading into the second week. On Monday the 14th, there's a slight glimmer. The wind swings cross-shore and drops to a gentle breeze, and we've got a 6ft swell from the SSW. The wave energy is strong (258) and the conditions are described as marginal, not a total write-off. It's not perfect, but it's the first real chance for a surf. Tuesday the 15th is back to onshore rain, so forget that. Wednesday the 16th and Thursday the 17th see the swell building again – up to 8ft on Thursday with very strong energy (510) – but the wind is onshore or cross-onshore, so it's messy and only for the experts if anyone is mad enough.
The best chance in this whole outlook, and it's a bit of a long-range punt, is Sunday the 20th. The morning shows a 6ft swell from the SW with a 7-second period, a light cross-shore wind from the SE at just 3 mph, and the wave energy is pumping at 548. The score is the highest we see, a 2 out of 10, which for this stretch is the standout. It's described as marginal, but with those light winds it could clean up nicely. Keep an eye on it, but don't book the week off.
For the most part though, it's a flat, windy, and messy run. The break is fairly consistent but the conditions are letting it down badly. It tends not to stay this poor for long, so forecasts can change, but as it stands, this is a blank run.
Rusty.
Short Range ForecastModerate rain (total 12mm), heaviest on Mon night. Warm (max 20°C on Sun afternoon, min 12°C on Mon night). Winds increasing (light winds from the WSW on Sun night, strong winds from the SW by Mon night). | Days 4-6 Weather SummarySome drizzle, heaviest during Thu night. Very mild (max 17°C on Thu night, min 14°C on Wed morning). Winds decreasing (fresh winds from the WNW on Wed morning, calm by Fri afternoon). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 6 | SSW 6 | SW 14 | SW 5 | SW 7 | WSW 6 | W 6 | WNW 6 | NW 6 | SW 6 | SW 7 | SSW 5 | SW 6 | SW 6 | NW 4 | SW 6 | SW 6 | SSW 6 | SW 7 | SW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 97 | 156 | 123 | 33 | 49 | 434 | 309 | 232 | 290 | 228 | 13 | 8 | 105 | 69 | 65 | 28 | 18 | 9 | 272 | 342 | 73 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross | cross-on | cross-on | cross-on |
High Tide | 5:48PM3.13m | 6:46AM3.12m | 7:12PM3.41m | 7:58AM3.37m | 8:11PM3.77m | 8:48AM3.63m | 8:58PM4.11m | 9:29AM3.86m | 9:39PM4.37m | 10:06AM4.03m | 10:17PM4.51m | 10:42AM4.11m | 10:54PM4.52m | ||||||||
Low Tide | 12:11PM1.26m | 00:57AM0.99m | 1:29PM1.03m | 2:07AM0.62m | 2:30PM0.70m | 3:02AM0.22m | 3:19PM0.38m | 3:49AM-0.10m | 4:02PM0.12m | 4:31AM-0.30m | 4:43PM-0.03m | 5:10AM-0.34m | 5:22PM-0.06m | ||||||||
 |  |  | |  |  | | | | |  | | | |  | | | | | | | |
 | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — |
 | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — | — | 7:42 | — |
mm | 1 | — | — | — | — | 10 | — | 1 | — | — | — | — | — | — | 1 | — | — | — | 1 | — | — |
Temp °C | 18 | 20 | 17 | 15 | 16 | 15 | 14 | 15 | 14 | 14 | 15 | 16 | 16 | 16 | 17 | 15 | 16 | 16 | 17 | 18 | 15 |
Feels °C | 11 | 14 | 14 | 11 | 11 | 7 | 7 | 8 | 6 | 7 | 10 | 14 | 11 | 12 | 14 | 13 | 15 | 15 | 12 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 14 | SW 13 | — | — | — | — | SW 6 | NNW 6 | NNW 5 | — | — | — | SW 6 | NW 4 | SW 6 | — | — | SW 7 |
| kJ | 7 | 6 | 6 | 33 | 27 | — | — | — | — | 21 | 55 | 8 | — | — | — | 26 | 11 | 9 | — | — | 73 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | WNW 4 | — | — | — | — | — | SW 6 | SW 7 | — | — | — | — | SW 6 | NNW 4 | — | — | NW 4 |
| kJ | — | — | — | — | 1 | — | — | — | — | — | 11 | 8 | — | — | — | — | 18 | 2 | — | — | 19 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | SSW 3 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 6 | SSW 6 | WSW 4 | SW 5 | SW 7 | WSW 6 | W 6 | WNW 6 | NW 6 | W 4 | WNW 3 | SSW 5 | SW 6 | SW 6 | NW 4 | NW 4 | — | SSW 6 | SW 7 | NW 4 |
| kJ | 97 | 156 | 123 | 23 | 49 | 434 | 309 | 232 | 290 | 228 | 13 | 2 | 105 | 69 | 65 | 28 | 4 | — | 272 | 342 | 21 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 233 | 342 | 212 | 46 | 321 | 283 | 508 | 543 | 543 | 271 | 295 | 253 | 262 | 285 | 301 | 46 | 152 | 181 | 259 | 253 | 46 |
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.
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