Surf Forecasts:
Rhosneigr surf forecast from 9 Aug 2026:
- Most powerful swell: Friday 14 Aug, 4AM (local time) - 2ft (0.6m), 5s period, SW 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 0.6m 5s and forecast to arrive on Friday (Aug 14) at 4AM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Saturday (Aug 15) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Fri 14th Aug) | 2ft (0.6m) 5s |
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 on the cards for the next couple of weeks at Rhosneigr.
Honestly, it’s a pretty quiet spell ahead. The first real chance of anything decent doesn't show up until late in the forecast. From now until then, we're looking at days and days of tiny, weak swell with hardly any energy to speak of. There’s a long stretch of flat or near-flat conditions, with wave heights barely reaching 0.3 ft and combined swell energy sitting mostly in the single digits or low teens – a measly 10 or less most days. The wind is often onshore or cross-onshore too, which isn't doing us any favours. It's a proper dry spell for surfable waves.
The only flicker of life comes right at the end. On Friday the 21st of August, things finally pick up a little. The morning brings a 4.3 ft swell from the WNW with 5-second period and moderate energy (96), with a clean cross-offshore wind from the ENE. The afternoon gets a bit better: a 3.6 ft swell from the NW, energy dropping to 78, but the wind swings to the NE and goes offshore, giving us some clean, surfable conditions. It's nothing to write home about, but it's the only time the score isn't a total zero. It's small and short-period, so it'll be weak and wonky, but at least you can get wet.
After that, it drops straight back to tiny ankle-snappers for the rest of the period. Not much to get excited about, lads. This is just one of those times where the ocean takes a nap.
Short Range ForecastMostly dry. Warm (max 22°C on Tue afternoon, min 13°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 24°C on Wed afternoon, min 13°C on Sat morning). Wind will be generally light. | |||||||||||||||||||
Sun 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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 12 | SSW 4 | SW 6 | SW 6 | SSW 6 | SSW 6 | SW 6 | S 11 | SW 12 | SW 12 | SW 10 | SW 11 | SW 11 | SW 4 | WNW 4 | NW 4 | SW 6 | W 8 | SW 7 | SW 7 |
Wave Graph  | ||||||||||||||||||||
 kJ | 6 | 7 | 8 | 5 | 4 | 4 | 1 | 2 | 5 | 6 | 4 | 5 | 4 | 16 | 10 | 7 | 2 | 1 | 2 | 2 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-off | cross-off | cross-off | off | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:10PM3.38m | 7:48AM3.43m | 8:14PM3.71m | 8:49AM3.66m | 9:07PM4.05m | 9:40AM3.86m | 9:54PM4.35m | 10:25AM4.00m | 10:38PM4.54m | 11:07AM4.05m | 11:19PM4.59m | 11:46AM4.02m | 00:00AM4.50m | |||||||
Low Tide | 2:14AM0.73m | 2:42PM0.68m | 3:13AM0.33m | 3:34PM0.38m | 4:04AM-0.04m | 4:20PM0.13m | 4:50AM-0.29m | 5:04PM-0.02m | 5:34AM-0.40m | 5:45PM-0.06m | 6:15AM-0.35m | 6:25PM0.02m | ||||||||
 |  |  | | | | | | | |  | | | | | | |  | | | |
 | — | — | 5:48 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:56 | — | — |
 | 8:59 | — | — | 8:57 | — | — | 8:54 | — | — | 8:52 | — | — | 8:51 | — | — | 8:49 | — | — | 8:45 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 15 | 16 | 16 | 16 | 21 | 22 | 21 | 22 | 24 | 22 | 23 | 23 | 21 | 17 | 19 | 17 | 14 | 15 | 14 |
Feels °C | 15 | 12 | 13 | 13 | 13 | 17 | 19 | 20 | 18 | 21 | 20 | 23 | 23 | 22 | 15 | 17 | 15 | 9 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | — | SSW 4 | SW 6 | SW 6 | SSW 6 | SSW 6 | SW 6 | SSW 3 | SW 12 | SW 12 | SW 10 | SW 8 | SW 8 | SW 8 | SW 4 | SW 5 | SW 5 | SW 5 | SW 5 | SW 7 |
| kJ | — | 7 | 8 | 5 | 4 | 4 | 1 | 1 | 5 | 6 | 4 | 3 | 2 | 2 | 4 | 3 | 1 | 1 | 1 | 2 |
Swell 2 Height (m) Direction Period (s) | SW 12 | SW 12 | S 8 | — | — | — | — | SW 6 | SW 6 | S 6 | SW 5 | SW 5 | SW 11 | S 11 | SW 7 | — | SW 6 | W 8 | SW 7 | — |
| kJ | 6 | 6 | 1 | — | — | — | — | 1 | 1 | 1 | 1 | 1 | 4 | 2 | 2 | — | 2 | 1 | 2 | — |
Swell 3 Height (m) Direction Period (s) | — | SW 12 | — | — | — | — | — | S 11 | W 10 | SW 6 | — | SW 11 | W 11 | — | — | — | — | — | — | — |
| kJ | — | 6 | — | — | — | — | — | 2 | 2 | 1 | — | 5 | 2 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 3 | N 3 | NNW 4 | N 4 | ENE 2 | SSE 3 | — | — | SSW 3 | SSW 3 | — | SSW 3 | SW 3 | SW 4 | WNW 4 | NW 4 | N 4 | N 5 | NNW 5 | N 5 |
| kJ | 4 | 3 | 5 | 3 | 1 | 1 | — | — | 3 | 2 | — | 1 | 1 | 16 | 10 | 7 | 4 | 59 | 35 | 42 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 543 | 259 | 259 | 284 | 253 | 283 | 313 | 180 | 158 | 181 | 174 | 174 | 295 | 187 | 187 | 329 | 187 | 324 | 571 | 324 |
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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