Surf Forecasts:
Rhosneigr surf forecast from 2 Sep 2026:
- Most powerful swell: Thursday 3 Sep, 1AM (local time) - 6ft (1.8m), 7s period, SW swell with 287 kJ wave energy.
Best Forecast Surf Conditions for Rhosneigr this week:
The most powerful waves expected at Rhosneigr in the next 16 days are 1.8m 7s and forecast to arrive on Thursday (Sep 03) at 1AM. Winds are predicted to be 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 | 1AM (Thu 3rd Sep) | 6ft (1.8m) 7s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Alright folks, Rusty here with a look at the forecast for Rhosneigr. Gotta be honest with you, it’s a tough stretch ahead. The pattern’s been bad and it’s going to stay that way for a while.
We’re starting off with no real surf on the cards for the first week or so. Wednesday the 2nd kicks off with a messy 3.6 ft SSW swell and a 19 mph southerly tearing it up, making for a lumpy, poor surface. That theme just keeps rolling. The water is sitting at 62.8°, which is a touch warmer than normal for this time of year, but you won't be feeling it because you’ll be watching from the shore.
From the 2nd right through to the 10th, it’s a grim run of small, weak, and wind-affected junk. Swell heights bob around from 1 ft to 5.9 ft, but the real killer is the wind—almost always onshore or cross-onshore, mostly from the south or southwest. The energy is weak to moderate at best, but with that wind, it’s just messy. There is a brief window on the 9th and 10th where the wind turns cross-off from the NNW, cleaning things up, but the swell is tiny—1.6 ft to 4.3 ft—so it’s barely worth paddling out for.
The first real standout, and I mean the *only* standout, pops up much later. On Wednesday the 16th, we finally see some proper grunt. A 9.8 ft SSW swell rolling in at an 8-second period, and the energy goes through the roof (1151 combined energy of all swells directed here—strong to very strong). The wind is cross-shore from the WNW. However, this one comes with a huge caveat: the data says it’s predicted to be too big for this break. That size, even with the wind being cross, is likely going to be a washing machine. It’s only for absolute experts who know the sandbars. For the rest of us, it’s a window-looker.
Honestly, for the first ten days, there’s nothing going on. A long, blank run. On the 16th, there’s a big, intimidating swell that’s more of a spectacle than a session. If you’re a beginner, this whole 16-day block is a miss. For the crew, the setup on the 9th and 10th might be more interesting for kite surfing, given the clean cross-off wind and the lack of any real push from the swell.
Short Range ForecastModerate rain (total 18mm), heaviest on Thu night. Very mild (max 18°C on Wed night, min 13°C on Fri night). Winds decreasing (fresh winds from the S on Wed morning, light winds from the W by Thu night). | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Mon afternoon. Warm (max 20°C on Sun afternoon, min 13°C on Sat morning). Mainly strong winds. | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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 | SW 7 | SW 7 | SSW 6 | SSW 6 | W 5 | WSW 5 | WNW 5 | SW 6 | SW 6 | SSW 4 | SSW 4 | SSW 5 | SW 6 | SW 13 | SW 5 | WSW 5 | WSW 6 | WSW 6 | W 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 61 | 173 | 287 | 144 | 196 | 113 | 115 | 69 | 87 | 18 | 16 | 13 | 36 | 86 | 52 | 26 | 106 | 161 | 204 | 167 | 183 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | on | on | cross |
High Tide | 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 | 7:58AM3.37m | 8:11PM3.77m | ||||||||
Low Tide | 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 | 2:30PM0.70m | 3:02AM0.22m | ||||||||
 |  |  | | |  | | |  | |  | | | | | | | |  | |  | |
 | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:33 | — | — | 6:35 | — | — | 6:35 | — | — | 6:37 | — | — |
 | — | 8:06 | — | — | 8:04 | — | — | 8:00 | — | — | 7:59 | — | — | 7:55 | — | — | 7:53 | — | — | 7:52 | — |
mm | 5 | — | — | — | 1 | 12 | — | — | — | — | — | — | — | — | — | — | 4 | — | 1 | 2 | 4 |
Temp °C | 16 | 17 | 18 | 17 | 17 | 16 | 15 | 17 | 15 | 14 | 14 | 16 | 18 | 20 | 17 | 15 | 16 | 14 | 14 | 14 | 13 |
Feels °C | 11 | 13 | 15 | 13 | 13 | 12 | 8 | 11 | 9 | 12 | 10 | 12 | 11 | 14 | 14 | 12 | 9 | 6 | 5 | 5 | 3 |
Swell 1 Height (m) Direction Period (s) | S 16 | SW 16 | SW 15 | NW 4 | — | WNW 4 | SW 14 | SW 14 | SW 7 | SW 6 | NW 4 | SW 13 | SW 13 | SW 13 | SW 6 | SW 13 | — | SW 11 | — | — | — |
| kJ | 5 | 10 | 9 | 4 | — | 7 | 8 | 8 | 12 | 18 | 3 | 7 | 7 | 6 | 52 | 7 | — | 5 | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 14 | — | SW 14 | — | — | SW 14 | NNW 5 | N 5 | — | — | — | SW 12 | SW 13 | — | — | — | — | — |
| kJ | — | — | — | 8 | — | 8 | — | — | 8 | 5 | 2 | — | — | — | 6 | 26 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SW 14 | — | — | — | SW 14 | SW 13 | — | — | — | W 15 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 8 | — | — | — | 7 | 7 | — | — | — | 5 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 6 | SW 7 | SW 7 | SSW 6 | SSW 6 | W 5 | WSW 5 | WNW 5 | WNW 4 | SW 6 | SSW 4 | SSW 4 | SSW 5 | — | WSW 3 | SW 5 | WSW 5 | WSW 6 | WSW 6 | W 6 |
| kJ | 61 | 173 | 287 | 144 | 196 | 113 | 115 | 69 | 87 | 12 | 16 | 13 | 36 | 86 | — | 10 | 106 | 161 | 204 | 167 | 183 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 257 | 259 | 283 | 290 | 600 | 283 | 169 | 543 | 175 | 46 | 242 | 159 | 328 | 183 | 212 | 169 | 589 | 551 | 497 | 832 | 786 |
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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