Surf Forecasts:
Rhosneigr surf forecast from 13 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 10AM (local time) - 4.5ft (1.3m), 5s period, NW swell with 83 kJ wave energy.
Best Forecast Surf Conditions for Rhosneigr this week:
The most powerful waves expected at Rhosneigr in the next 16 days are 1.3m 5s and forecast to arrive on Wednesday (Aug 19) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Wednesday (Aug 19) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 10AM (Wed 19th Aug) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Alright, Rusty here again, and I gotta keep it real – the next couple of weeks at Rhosneigr are a tough watch. If you're hoping for a wave, you're gonna be waiting a good while. There’s nothing worth paddling out for in the first week and a half. It’s flat, plain and simple.
We’re looking at a big dry spot from today, Thursday the 13th of August, all the way until late in the second week. The water temp is about 64°, which is a touch warmer than average for this time of year, but that’s about the only highlight.
Things perk up a little around Thursday the 27th of August. We get a push from the south south west, with the swell hitting about 3ft. The big difference is the wind: we’ve got a moderate offshore from the NE, so the face should be clean. The period is a short 6 seconds, so no long lines, but it’s the best we’ll see. The combined swell energy is at 64 (moderate), so there’s some push there. At this size, it’s a beginner-friendly wave. The steady offshore breeze means you won’t be wrestling the wind.
Before that, on Wednesday the 26th, there’s some strong offshore wind from the NE, which cleans the surface up, but the swell is tiny – barely a ripple at 0.3ft. It looks pretty, but there’s nothing to ride.
The standout, if you can call it that, is the afternoon of Thursday the 27th. It’s not firing, but it’s the only time in the whole 16 days where the swell and wind line up for something rideable. The rest is a bust. Kite surfers might have some fun when the wind is strong and side-off, but for paddle surfing, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu afternoon, min 13°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 9mm), mostly falling on Tue night. Very mild (max 18°C on Mon night, min 14°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the SSW by Tue afternoon). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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) | SW 11 | SW 11 | SW 4 | SW 4 | SW 4 | W 8 | W 8 | SW 6 | SW 7 | N 4 | W 7 | — | — | SSW 3 | SW 4 | SW 6 | SW 6 | WNW 4 | NW 5 | S 15 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 5 | 4 | 16 | 4 | 3 | 1 | 1 | 2 | 2 | 0 | 1 | 0 | 0 | 2 | 34 | 51 | 51 | 27 | 83 | 5 | 10 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | glassy | on | on | on | cross-on | on | cross | cross-on | cross | cross-off |
High Tide | 10:25AM4.00m | 10:38PM4.54m | 11:07AM4.05m | 11:19PM4.59m | 11:46AM4.02m | 00:00AM4.50m | 12:25PM3.91m | 00:40AM4.27m | 1:04PM3.73m | 1:21AM3.95m | 1:44PM3.51m | 2:05AM3.58m | 2:29PM3.25m | 2:56AM3.21m | |||||||
Low Tide | 5:04PM-0.02m | 5:34AM-0.40m | 5:45PM-0.06m | 6:15AM-0.35m | 6:25PM0.02m | 6:55AM-0.16m | 7:05PM0.20m | 7:34AM0.15m | 7:45PM0.46m | 8:13AM0.53m | 8:25PM0.77m | 8:54AM0.92m | 9:10PM1.10m | ||||||||
 | |  | |  |  |  | | | | | | | |  | |  |  | | | | |
 | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:03 | — | — |
 | — | 8:51 | — | — | 8:49 | — | — | 8:45 | — | — | 8:44 | — | — | 8:42 | — | — | 8:39 | — | — | 8:37 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | 1 | 6 | — | — | — |
Temp °C | 21 | 22 | 19 | 18 | 17 | 16 | 15 | 15 | 14 | 15 | 15 | 15 | 17 | 17 | 18 | 17 | 18 | 16 | 15 | 17 | 16 |
Feels °C | 20 | 22 | 17 | 19 | 14 | 14 | 10 | 11 | 11 | 14 | 13 | 15 | 15 | 15 | 14 | 15 | 14 | 16 | 13 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 8 | SW 11 | S 11 | SW 4 | SW 4 | SW 6 | SW 6 | SW 6 | SW 7 | — | W 7 | — | — | — | — | SW 6 | NW 4 | SW 6 | SW 6 | SW 5 | SW 5 |
| kJ | 3 | 4 | 2 | 4 | 3 | 1 | 1 | 2 | 2 | — | 1 | — | — | — | — | 51 | 2 | 6 | 11 | 4 | 1 |
Swell 2 Height (m) Direction Period (s) | SW 5 | W 11 | — | WNW 3 | SW 7 | W 8 | W 8 | — | — | — | — | — | — | — | — | — | — | — | SW 16 | S 15 | SW 16 |
| kJ | 1 | 3 | — | 1 | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 10 | 5 | 10 |
Swell 3 Height (m) Direction Period (s) | SW 11 | S 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 3 | SW 2 | SW 4 | — | N 4 | N 4 | N 4 | N 5 | N 4 | N 4 | NNW 4 | — | — | SSW 3 | SW 4 | NW 4 | SW 6 | WNW 4 | NW 5 | NW 5 | NNW 5 |
| kJ | 1 | 2 | 16 | — | 7 | 12 | 32 | 21 | 12 | 9 | 3 | — | — | 2 | 34 | 18 | 51 | 27 | 83 | 36 | 59 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 174 | 256 | 174 | 187 | 543 | 354 | 324 | 786 | 259 | 253 | 257 | 283 | 295 | 295 | 296 | 46 | 390 | 286 | 296 | 354 | 230 |
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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