Surf Forecasts:
Rhosneigr surf forecast from 18 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 7AM (local time) - 2ft (0.6m), 4s period, W swell with 10 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 4s and forecast to arrive on Saturday (Jul 25) at 7AM. Winds are predicted to be 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 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 7AM (Sat 25th Jul) | 2ft (0.6m) 4s |
Table - best surf conditions forecast for Rhosneigr over the next 16 days.
The Lowdown
Alright folks, Rusty here with the imperial version. I’ve looked over the next sixteen days, and it’s a real bummer – no surf to speak of. From Friday 17 July all the way through Saturday 1 August, every single session shows poor surf conditions. That’s a solid two weeks with nothing worth paddling out for. For a spot like Rhosneigr, which is usually fairly consistent and exposed to the SW, this is a rare dry spell. The water temp on Friday afternoon is 63°F, which is about 4°F warmer than the long-term average – that’s much warmer than usual, so at least you can enjoy a swim.
Let’s break it down. Friday 17 July afternoon: a tiny 0.3ft swell from the SW, long period of 12 seconds, but combined energy is a weak 10. Wind is NNW at 12 mph, cross-off, so clean, but no height. Saturday 18 July morning and afternoon: 0.3ft from S and SW, periods 11 seconds, energy 3 and 6 – still nothing. Sunday 19 July: 0.3ft, period 11 or 10 seconds, energy 2. Monday 20 July through Thursday 23 July: zero swell – dashes, no energy. Friday 24 July: 0.3ft from S, 13-second period, energy 3, light cross-onshore wind. Saturday 25 July morning: a bump to 3ft from WNW, 4-second period (very short, sloppy), energy 25, but cross-onshore wind 9 mph. Afternoon: 2ft from W, 4-second period, onshore wind 12 mph – raw and choppy. Sunday 26 July: back to 0.3ft. Monday 27 July morning: the biggest swell – 4ft from W, 5-second period, energy 88 – moderate energy but short period and cross-onshore wind 12 mph, so messy. Afternoon: 4ft, same direction, 5-second period, energy 74, cross-shore wind – still poor. After that, it drops to tiny 0.3ft to 1ft for the rest of the month, and into August, with the biggest being 3ft on Saturday 1 August morning from WNW, 5-second period, energy 48, but cross-shore wind and poor conditions.
So no standout days. The water’s warm, the wind is often clean, but without any wave size, it’s just flat. For a beginner spot like Rhosneigr, even 4ft with a 5-second period and cross-onshore wind is a messy closeout – not fun for anyone. I’d say sit tight, forecasts can change, but this is a rare blank run. Keep the wax warm and hope the next system delivers.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Fri night, min 12°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Tue afternoon, min 11°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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) | S 11 | SW 11 | S 11 | S 11 | S 10 | S 10 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | N 5 | N 6 | NNW 6 | NNW 6 | N 6 | NNW 6 | N 5 | NNW 5 | S 13 | S 13 | SW 3 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 5 | 2 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | on | cross-on | cross-on |
High Tide | 12:58PM3.76m | 1:12AM4.25m | 1:45PM3.57m | 2:00AM3.97m | 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 | ||||||||
Low Tide | 7:25AM-0.16m | 7:35PM0.30m | 8:10AM0.10m | 8:19PM0.55m | 8:56AM0.43m | 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 | |||||||
 | |  |  | | | | |  | | | | | | | | | | | |  | |
 | 5:11 | — | — | 5:13 | — | — | 5:15 | — | — | 5:16 | — | — | 5:18 | — | — | 5:18 | — | — | 5:20 | — | — |
 | — | — | 9:35 | — | — | 9:32 | — | — | 9:31 | — | — | 9:30 | — | — | 9:29 | — | — | 9:28 | — | — | 9:25 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 |
Temp °C | 14 | 17 | 17 | 15 | 16 | 16 | 14 | 17 | 16 | 16 | 17 | 14 | 16 | 16 | 14 | 16 | 17 | 16 | 17 | 18 | 17 |
Feels °C | 9 | 13 | 15 | 13 | 13 | 13 | 10 | 14 | 14 | 13 | 15 | 12 | 12 | 11 | 10 | 13 | 15 | 14 | 15 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 6 | SW 6 | S 11 | S 11 | S 10 | S 10 | — | — | — | — | — | — | — | — | — | — | N 5 | NNW 5 | N 4 | — | — |
| kJ | 1 | 1 | 2 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | 18 | 7 | 1 | — | — |
Swell 2 Height (m) Direction Period (s) | S 11 | SW 11 | S 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 13 | S 13 | — |
| kJ | 2 | 5 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 6 | N 5 | NNW 4 | NNW 4 | N 4 | NNW 5 | NNW 5 | NNW 5 | NNW 5 | N 5 | N 6 | NNW 6 | NNW 6 | N 6 | NNW 6 | — | — | — | SW 2 | SW 3 |
| kJ | 46 | 104 | 11 | 5 | 5 | 10 | 47 | 33 | 45 | 32 | 15 | 106 | 130 | 150 | 85 | 50 | — | — | — | 1 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 283 | 283 | 262 | 283 | 331 | 271 | 283 | 324 | 271 | 283 | 354 | 53 | 53 | 53 | 53 | 262 | 299 | 271 | 259 | 242 | 259 |
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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