Surf Forecasts:
Rhosneigr surf forecast from 20 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 1PM (local time) - 2.5ft (0.7m), 4s period, WSW swell with 17 kJ wave energy.
Best Forecast Surf Conditions for Rhosneigr this week:
The most powerful waves expected at Rhosneigr in the next 16 days are 0.7m 4s and forecast to arrive on Saturday (Jul 25) 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 1.5m 6s period and expected on Wednesday (Jul 22) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1PM (Sat 25th Jul) | 2.5ft (0.7m) 4s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s be straight with you – this is a tough one for the Anglesey coast, specifically around Rhosneigr. The whole 16-day window is pretty much a blank. We’re looking at next to nothing for surf, and the conditions we do get are just not worth paddling out for.
The very first recommendation doesn’t show up until Friday the 24th of July, and even then it’s a joke. We’re talking about a tiny 0.3 ft swell from the south with a period of 13 seconds. That’s a long-period groundswell, but there’s no energy behind it – the combined energy is a measly 5 (weak). The wind is cross-onshore, so it’s going to be choppy and messy. It’s not surfable.
From there, things don’t get any better. Saturday the 25th brings a bit more swell, up to 2 ft, but the period drops to a shocking 4 seconds. That’s just wind slop. The wind is onshore and strong at 19 mph, making it a total washout. The combined energy is only 12 (weak). This pattern of poor-quality, short-period windswell with onshore wind repeats for days. The water temp is about 63°F, which is a touch warmer than normal for the time of year (4°F anomaly), but that’s the only upside.
We finally get a little moment of hope on the morning of Friday the 31st of July. The swell is still small at 2 ft, but the period is up to 7 seconds, and the wind goes glassy from the ESE. The combined energy is still low at 29 (weak), but for a brief window it’ll be clean. It’s not a standout, but it’s the best of a bad lot. The afternoon stays clean with a cross-offshore breeze, but the swell is too weak to get excited about.
After that, the first few days of August see a drop back to nothing, with onshore wind and tiny swell. The energy is almost non-existent, with values as low as 2 (weak). The whole period is a bust. There are no strong swells, no good winds, and no consistent waves. For a beginner spot, it’s a total write-off.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 19°C on Wed afternoon, min 11°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat morning. Warm (max 20°C on Thu afternoon, min 13°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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) | N 5 | N 5 | N 6 | N 5 | N 5 | N 7 | NNW 6 | NNW 5 | NNW 6 | N 5 | N 5 | N 4 | S 13 | S 13 | WSW 3 | W 4 | SW 4 | SW 4 | W 3 | NW 4 | NW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 | 9 | 15 | 10 | 7 | 12 | 10 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-on | on | cross | on | cross-on | cross | cross | cross | cross |
High Tide | 2:34PM3.37m | 2:51AM3.65m | 3:28PM3.18m | 3:49AM3.33m | 4:30PM3.04m | 4:56AM3.09m | 5:37PM2.97m | 6:08AM2.98m | 6:44PM3.01m | 7:16AM2.99m | 7:44PM3.13m | 8:13AM3.09m | 8:35PM3.31m | ||||||||
Low Tide | 9:06PM0.83m | 9:44AM0.78m | 9:59PM1.11m | 10:38AM1.10m | 11:03PM1.32m | 11:45AM1.31m | 00:23AM1.40m | 1:01PM1.37m | 1:39AM1.32m | 2:06PM1.28m | 2:38AM1.14m | 2:56PM1.10m | 3:23AM0.93m | ||||||||
 |  |  | | |  | | | | | | | | |  |  |  | | | | | |
 | 5:15 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — | 5:22 | — | — | 5:24 | — | — |
 | — | — | 9:31 | — | — | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:25 | — | — | 9:24 | — | — | 9:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 15 | 16 | 13 | 17 | 19 | 16 | 17 | 20 | 19 | 16 | 17 | 16 | 14 | 16 | 16 | 15 | 17 | 16 |
Feels °C | 12 | 13 | 13 | 12 | 13 | 11 | 14 | 15 | 14 | 14 | 19 | 19 | 14 | 15 | 14 | 11 | 14 | 15 | 12 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | N 5 | N 5 | N 4 | S 13 | WNW 3 | — | S 12 | NW 4 | SW 4 | SW 5 | SW 4 | SSW 6 |
| kJ | — | — | — | — | — | — | — | — | — | 18 | 10 | 1 | 3 | 2 | — | 3 | 4 | 10 | 4 | 5 | 3 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | S 13 | — | — | S 12 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | 3 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 11 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — |
Wind waves Height (m) Direction Period (s) | N 5 | N 5 | N 6 | N 5 | N 5 | N 7 | NNW 6 | NNW 5 | NNW 6 | NNW 5 | NNW 5 | — | NW 3 | — | WSW 3 | W 4 | SW 4 | — | W 3 | NW 4 | NW 4 |
| kJ | 25 | 24 | 80 | 25 | 22 | 171 | 155 | 42 | 50 | 5 | 2 | — | 2 | — | 3 | 9 | 15 | — | 7 | 12 | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 283 | 881 | 284 | 262 | 354 | 53 | 271 | 277 | 290 | 277 | 602 | 253 | 419 | 1080 | 259 | 381 | 581 | 174 | 391 | 175 | 174 |
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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