Surf Forecasts:
Rhosneigr surf forecast from 4 Aug 2026:
- Most powerful swell: Saturday 8 Aug, 4PM (local time) - 5.5ft (1.7m), 6s period, SW swell with 189 kJ wave energy.
Best Forecast Surf Conditions for Rhosneigr this week:
The most powerful waves expected at Rhosneigr in the next 16 days are 1.7m 6s and forecast to arrive on Saturday (Aug 08) 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 1.1m 5s period and expected on Thursday (Aug 06) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4PM (Sat 8th Aug) | 5.5ft (1.7m) 6s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s happening on our shores over the next couple of weeks.
Right off the bat, I gotta be straight with you – the outlook for the next sixteen days is a bit of a bummer for Rhosneigr. We’re looking at a long stretch of poor surf conditions with nothing really lighting up the scoreboard. The first few days are a write-off, with a persistent cross-onshore wind and messy, choppy waves. The swell energy is weak, barely pushing 70 to 95 (moderate wave energy) early on, and it just doesn't get it together. We’ve got a bit of a gap here with no real recommendations for a solid session.
The water temp is about average for this time of year, so no surprises there.
The only flicker of hope comes right at the end of the run. On Tuesday, the 18th of August, we see a pulse of swell in the morning with a 6 ft SSW swell (combined energy of 196). That’s the biggest number we’ll see, but unfortunately, the wind is blowing straight onshore and strong at 28 mph. For a beginner-friendly spot, that’s just too much wind and the wave size is pushing the limit. The swell period is a short 6 seconds, so it’ll be a bit of a bumpy, disorganized mess. It’s not a day for a longboard, that’s for sure. If you’re an experienced surfer who doesn’t mind a challenge, you might get some big, blown-out lines, but it’s not the clean, glassy day we’re all hoping for. The setup looks more interesting for kite surfing than paddle surfing.
Honestly, for the rest of the window, it’s a case of keeping an eye on the charts. The consistency is not there, and a blank run like this is more normal for the area when the wind doesn’t cooperate. The forecast can change, but for now, I’d leave the boards in the car and wait for a better day.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Mon night. Very mild (max 19°C on Tue morning, min 13°C on Wed night). Winds increasing (calm on Mon night, fresh winds from the W by Wed morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sun afternoon, min 14°C on Thu night). Winds decreasing (fresh winds from the SSW on Sat afternoon, light winds from the SW by Sun afternoon). | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
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 5 | SW 6 | W 6 | W 5 | WNW 6 | NW 6 | SW 6 | SW 5 | W 4 | SW 4 | SW 5 | SW 4 | SW 6 | SW 6 | SW 6 | SW 6 | SW 7 | NW 4 | S 12 | SW 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 70 | 74 | 75 | 152 | 92 | 173 | 124 | 11 | 10 | 10 | 22 | 42 | 43 | 189 | 80 | 15 | 10 | 7 | 14 | 3 | 1 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | on | cross-on | off | cross-off | cross-off | off |
High Tide | 1:32PM3.51m | 1:48AM3.77m | 2:18PM3.37m | 2:39AM3.55m | 3:15PM3.22m | 3:44AM3.33m | 4:28PM3.12m | 5:06AM3.20m | 5:53PM3.16m | 6:34AM3.25m | 7:10PM3.38m | 7:48AM3.43m | 8:14PM3.71m | ||||||||
Low Tide | 8:12AM0.50m | 8:22PM0.79m | 8:55AM0.70m | 9:10PM0.99m | 9:47AM0.92m | 10:11PM1.16m | 10:55AM1.10m | 11:32PM1.22m | 12:19PM1.13m | 1:01AM1.07m | 1:38PM0.97m | 2:14AM0.73m | 2:42PM0.68m | 3:13AM0.33m | |||||||
 |  |  | |  |  | | |  | | | | | | | | | | | | | |
 | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:45 | — | — | 5:47 | — | — | 5:48 | — | — |
 | — | — | 9:07 | — | — | 9:06 | — | — | 9:04 | — | — | 9:01 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — |
mm | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 17 | 15 | 17 | 15 | 14 | 15 | 15 | 15 | 16 | 15 | 16 | 17 | 16 | 17 | 19 | 18 | 18 | 18 | 16 |
Feels °C | 16 | 15 | 13 | 9 | 11 | 8 | 10 | 12 | 12 | 12 | 11 | 12 | 12 | 11 | 13 | 16 | 18 | 18 | 15 | 15 | 13 |
Swell 1 Height (m) Direction Period (s) | NE 4 | — | SW 6 | — | S 13 | S 13 | SW 6 | NW 5 | N 4 | SW 12 | NW 4 | SW 12 | SW 11 | — | S 11 | SW 6 | NW 4 | SW 7 | SSW 5 | NNW 4 | SW 6 |
| kJ | 1 | — | 75 | — | 3 | 3 | 18 | 25 | 1 | 6 | 1 | 5 | 5 | — | 2 | 15 | 3 | 7 | 2 | 3 | 1 |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 7 | — | — | — | S 13 | S 12 | SW 12 | — | SW 12 | — | — | — | — | — | SW 6 | — | SW 6 | SW 6 | — |
| kJ | — | — | 20 | — | — | — | 3 | 3 | 6 | — | 6 | — | — | — | — | — | 10 | — | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | SW 12 | SW 12 | — | — | — | — | — | — | — | S 12 | — | — | S 12 | — |
| kJ | — | — | — | — | — | — | — | 6 | 6 | — | — | — | — | — | — | — | 3 | — | — | 3 | — |
Wind waves Height (m) Direction Period (s) | SSW 5 | SSW 5 | WNW 4 | W 6 | W 5 | WNW 6 | NW 6 | SW 6 | SW 5 | W 4 | SW 4 | SW 5 | SW 4 | SW 6 | SW 6 | WNW 4 | — | WNW 3 | NW 4 | WNW 3 | W 3 |
| kJ | 70 | 74 | 11 | 152 | 92 | 173 | 124 | 11 | 10 | 10 | 22 | 42 | 43 | 189 | 80 | 10 | — | 1 | 14 | 2 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 283 | 271 | 94 | 391 | 461 | 543 | 283 | 46 | 282 | 282 | 282 | 259 | 259 | 331 | 182 | 174 | 242 | 242 | 242 | 306 | 253 |
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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