Rhosneigr Surf Break

Lat Long: 53.24° N 4.53° W

Rhosneigr Surf Forecast and Surf Report

Issued: 6 am 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Rhosneigr sea temperature is
17.0°C
1.7° 

Rhosneigr surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Rhosneigr surf forecast from 12 Sep 2026:

  • Best quality surf: Sunday 13 Sep, 1AM (local time) - 3.5ft (1.0m), 7s period, SW swell with glassy winds.
  • Most powerful swell: Saturday 12 Sep, 1PM (local time) - 8ft (2.4m), 7s period, SW swell with 579 kJ wave energy.
  • Next surfable swell (1★+): Sunday 13 Sep, 1AM (local time) - 3.5ft (1.0m), 7s period with SW swell.

Best Forecast Surf Conditions for Rhosneigr this week:

The surf forecast for Rhosneigr over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 1AM. The primary swell is predicted to be 1.0m and 7s period with a secondary swell of 0.3m and 4s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Rhosneigr in the next 16 days are 2.4m 7s and forecast to arrive on Saturday (Sep 12) at 1PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Wednesday (Sep 16) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 13th Sep)3.5ft (1.0m) 7s
Best Surf 1AM (Sun 13th Sep)3.5ft (1.0m) 7s
Most Powerful 1PM (Sat 12th Sep)8ft (2.4m) 7s

Table - best surf conditions forecast for Rhosneigr over the next 16 days.


The Lowdown

Right, let’s have a look at what the next couple of weeks are doing for Rhosneigr. To be honest, mate, it’s a bit of a rough stretch. The wind is just all wrong for the most part, and the swell that does show up comes in with a lot of onshore energy, making a mess of things. The water here is sitting at 63°, which is a touch warmer than we’d normally expect for this time of year, so at least it won’t be a cold one if you’re stubborn enough to go out.

We start off the run on Saturday, September 12th, with a solid 8 ft SW swell but that 25 mph onshore wind is just trashing it – combined energy is 505. It’s not really a paddler’s game. That theme carries on through that weekend and into the next week. There are a couple of small windows, like early on Sunday the 13th when the wind drops to a 3 mph NE offshore and the swell pulls right back to 2 ft, but the energy is only 26 – it’s tiny and clean, but barely a ripple. The following Monday the 21st is the closest we get to something rideable. A glassy morning with a 2 ft SW groundswell (period 7 seconds) and just 60 in the energy bank. The conditions are described as surfable but very ordinary, so it’s a last resort for a log on a high tide.

The second week gets a bit more active, but not in a good way. By Sunday the 20th, we’ve got an onshore gale with an 8 ft SSW swell and energy readings of 860 – that’s all for the kites, not for us. The rest of the run into the end of September stays small, messy, or pinned flat by cross-onshore winds. The only real window where the wind turns off is on Friday the 25th, with a 9-15 mph NE offshore breeze, but the swell is just 1 ft, so it’s going to be a polished, flat lake. It’s a grim 16-day outlook, to be honest. There’s no standout session here, but if I had to point to the least bad option, it would be that glassy Monday morning on the 21st – just don’t expect much.

Rusty.

Short Range Forecast

Moderate rain (total 19mm), heaviest on Sat morning. Very mild (max 18°C on Sat afternoon, min 14°C on Mon night). Winds decreasing (strong winds from the SW on Sat morning, calm by Sat night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Very mild (max 16°C on Tue afternoon, min 13°C on Tue morning). Winds increasing (light winds from the W on Tue afternoon, fresh winds from the WSW by Wed night).

Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.4
SW
7
1.9
SW
7
1
SW
7
0.6
SSW
6
0.4
SSW
6
0.7
SSW
3
0.9
SSW
5
1.6
SSW
6
1.7
SSW
6
1.1
SW
6
0.5
SW
6
0.3
SW
6
0.1
S
11
0.6
W
4
1
WSW
4
1.4
W
5
1.1
W
5
1.1
W
5
0.9
WSW
4
1.2
SW
5
1.5
SW
6
Wave Graph
Metric surfscale
Energy kJ
505
355
91
26
14
10
45
160
196
80
19
5
2
11
37
104
55
50
30
66
156
Wind (km/h)
45
SW
35
SW
0
WNW
5
NE
10
WSW
20
S
25
SSW
40
SSW
30
SSW
25
WNW
20
WNW
30
NW
25
NW
20
WNW
30
SW
30
W
25
W
30
W
25
WSW
25
SW
35
SW
Wind State
on
on
glassy
off
cross-on
cross-on
on
cross-on
on
cross-on
cross
cross
cross
cross-on
on
cross-on
cross-on
cross-on
cross-on
on
on
High Tide
10:42AM4.11m
10:54PM4.52m
11:16AM4.11m
11:30PM4.39m
11:50AM4.02m
00:07AM4.16m
12:24PM3.85m
00:44AM3.84m
1:00PM3.60m
1:24AM3.48m
1:40PM3.31m
2:09AM3.11m
2:30PM3.01m
3:16AM2.79m
Low Tide
5:22PM-0.06m
5:48AM-0.24m
5:59PM0.01m
6:23AM-0.01m
6:35PM0.19m
6:58AM0.30m
7:12PM0.44m
7:33AM0.66m
7:49PM0.75m
8:09AM1.03m
8:30PM1.08m
8:52AM1.36m
9:24PM1.38m
heavy rain
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
part cloud
clear
part cloud
part cloud
cloud
rain showers
rain showers
clear
part cloud
part cloud
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:45
6:47
6:48
6:50
6:52
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:42
7:39
7:37
7:35
7:31
7:30
7:27
 mm
11
3
5
1
1
1
Temp °C
16
18
18
17
17
17
17
18
17
14
16
15
13
15
16
14
15
14
14
15
16
Feels °C
10
16
18
17
16
15
15
13
13
10
13
10
8
10
12
8
10
8
9
10
10
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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How to use the Wavefinder 

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rhosneigr surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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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