Surf Forecasts:
Rhosneigr surf forecast from 7 Sep 2026:
- Most powerful swell: Wednesday 9 Sep, 4AM (local time) - 7ft (2.1m), 7s period, NW swell with 370 kJ wave energy.
Best Forecast Surf Conditions for Rhosneigr this week:
The most powerful waves expected at Rhosneigr in the next 16 days are 2.1m 7s and forecast to arrive on Wednesday (Sep 09) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 6s period and expected on Wednesday (Sep 09) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 4AM (Wed 9th Sep) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's on offer for the next couple of weeks at Rhosneigr.
Straight up, I’m not gonna lie to you, it’s a rough start. For the first ten days or so, we’re looking at a whole lot of nothing worth paddling out for. The wind is just a mess – mostly onshore, often strong, and the swell is small and weak. There’s a bit of energy in the water on a few days, like the 12th of September where we see some moderate energy, but it’s accompanied by a 5-second period and strong onshore winds, so it’s just a lumpy, blown-out mess. You’d be better off with a kite than a surfboard those days.
The light at the end of the tunnel, and I mean the only real light, comes on the 17th of September. That Thursday afternoon is the standout. The wind swings around to a light northerly, giving us a clean, cross-off breeze. The swell jumps up to 7ft, with a 6-second period from the northwest, and the combined energy gets strong. The report says "expect good surf conditions," and I’m inclined to believe it. This is the one to aim for. Keep in mind, 7ft can be a bit much for a beginner, but for anyone with a bit of experience, it’s game on. The water temperature is about average for the time of year, so no frosty surprises.
After that, it fades out again pretty quickly. The 20th of September has some size – 7ft to 8ft – but the wind is a near gale or messy cross-shore, making it pretty average. The 22nd of September morning rolls in with cleaner conditions but only 3ft of weak swell, so it’s a small, clean session if you’re desperate.
So, the long and short of it: you’ve got one real window to make the most of, and that’s the afternoon of the 17th of September. Circle it, pray to the surf gods, and be ready.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Mon night. Very mild (max 17°C on Sun night, min 13°C on Mon night). Winds decreasing (strong winds from the SW on Mon night, light winds from the SW by Wed afternoon). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Very mild (max 17°C on Thu night, min 14°C on Wed night). Winds increasing (calm on Fri afternoon, strong winds from the S by Sat morning). | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 14 | SW 5 | SW 7 | WSW 5 | W 6 | NW 6 | SW 8 | SW 7 | SSW 3 | SW 5 | SSW 6 | SW 6 | SW 6 | SW 6 | SSW 8 | SSW 5 | SW 7 | SW 7 | SW 6 | SSW 6 | SSW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 33 | 91 | 357 | 105 | 152 | 328 | 15 | 9 | 3 | 41 | 138 | 203 | 40 | 19 | 37 | 157 | 253 | 88 | 19 | 15 | 17 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | cross-on | cross-on | cross-on | cross | cross-off | cross-on | cross-on | on | on | on | cross | cross | cross-on | cross-on | on | on | cross-on | on | cross-on |
High Tide | 6:46AM3.12m | 7:12PM3.41m | 7:58AM3.37m | 8:11PM3.77m | 8:48AM3.63m | 8:58PM4.11m | 9:29AM3.86m | 9:39PM4.37m | 10:06AM4.03m | 10:17PM4.51m | 10:42AM4.11m | 10:54PM4.52m | 11:16AM4.11m | 11:30PM4.39m | |||||||
Low Tide | 1:29PM1.03m | 2:07AM0.62m | 2:30PM0.70m | 3:02AM0.22m | 3:19PM0.38m | 3:49AM-0.10m | 4:02PM0.12m | 4:31AM-0.30m | 4:43PM-0.03m | 5:10AM-0.34m | 5:22PM-0.06m | 5:48AM-0.24m | 5:59PM0.01m | ||||||||
 |  |  | |  |  |  |  | | | | | | | | | | | | | | |
 | 6:35 | — | — | 6:37 | — | — | 6:39 | — | — | 6:41 | — | — | 6:43 | — | — | 6:45 | — | — | 6:47 | — | — |
 | — | 7:53 | — | — | 7:52 | — | — | 7:49 | — | — | 7:46 | — | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — |
mm | — | 1 | 3 | — | 1 | — | — | — | — | — | — | 4 | — | — | — | 1 | 1 | 2 | — | — | — |
Temp °C | 15 | 16 | 16 | 14 | 16 | 14 | 14 | 14 | 15 | 15 | 16 | 17 | 15 | 15 | 16 | 16 | 17 | 17 | 17 | 17 | 17 |
Feels °C | 11 | 11 | 8 | 7 | 9 | 6 | 11 | 11 | 11 | 10 | 11 | 14 | 12 | 13 | 14 | 9 | 14 | 16 | 17 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 14 | — | SW 7 | SW 7 | SW 11 | SW 6 | SW 8 | NNW 6 | NNW 5 | — | — | — | SW 6 | SW 6 | NNW 4 | — | — | SW 7 | SW 6 | SSW 6 | — |
| kJ | 33 | — | 255 | 41 | 4 | 19 | 15 | 40 | 4 | — | — | — | 40 | 19 | 1 | — | — | 88 | 19 | 15 | — |
Swell 2 Height (m) Direction Period (s) | — | — | SW 12 | SW 11 | — | SW 10 | SW 6 | SW 7 | — | — | — | — | — | SW 8 | — | — | — | — | WNW 3 | WNW 3 | — |
| kJ | — | — | 6 | 5 | — | 4 | 6 | 9 | — | — | — | — | — | 3 | — | — | — | — | 1 | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 4 | SW 5 | SW 7 | WSW 5 | W 6 | NW 6 | NNW 6 | W 4 | SSW 3 | SW 5 | SSW 6 | SW 6 | NW 4 | NW 4 | SSW 8 | SSW 5 | SW 7 | — | NW 3 | — | SSW 4 |
| kJ | 30 | 91 | 357 | 105 | 152 | 328 | 170 | 8 | 3 | 41 | 138 | 203 | 12 | 6 | 37 | 157 | 253 | — | 4 | — | 17 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 46 | 321 | 221 | 190 | 543 | 340 | 175 | 53 | 188 | 283 | 253 | 283 | 175 | 46 | 152 | 253 | 381 | 242 | 253 | 253 | 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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