Rhosneigr Surf Break

Lat Long: 53.24° N 4.53° W

Rhosneigr Surf Forecast and Surf Report

Issued: 12 am 13 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rhosneigr sea temperature is
17.7° C
2.0° 

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


Rhosneigr surf forecast from 13 Aug 2026:

  • Most powerful swell: Thursday 20 Aug, 1AM (local time) - 8ft (2.4m), 7s period, NW swell with 505 kJ wave energy.

Best Forecast Surf Conditions for Rhosneigr this week:

The most powerful waves expected at Rhosneigr in the next 16 days are 2.4m 7s and forecast to arrive on Thursday (Aug 20) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 7s period and expected on Thursday (Aug 20) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Thu 20th Aug)8ft (2.4m) 7s

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 coming up for the next couple weeks.

Right off the bat, I gotta be straight with you – it’s looking lean. We’ve got a long stretch ahead with very little to get excited about. The first real chance of a wave doesn’t show up until Monday the 17th, so we’re looking at a dry spell for the next several days. There’s a few tiny peaks around but nothing worth paddling out for.

The only spot in the mix is Rhosneigr. For a solid week, from the 13th through the 17th, it’s essentially flat or ankle-snappers at best. The water temp is about average for this time of year. The winds are all over the place, but mostly cross-off or glassy on the 15th and 16th – which would be nice if there was any swell. There isn’t.

Finally, on Monday the 17th, we see a pulse of energy. The morning brings a short-period 4ft swell from the SSW (47 combined energy) but it’s blowing cross-on at 15 mph, making for choppy, messy conditions. Not a classic. By the afternoon, the swell lifts to 4ft (107 combined energy) with onshore wind and light rain. It’s surfable for a beginner maybe, but it’s going to be a battle with the wind.

Tuesday the 18th backs right off – small and lumpy with fresh cross-onshore wind.

Then Wednesday the 19th ticks up a notch. We get a 7ft swell from the SW (359 combined energy) in the morning and 6ft in the afternoon (239 combined energy). That’s moderate energy, but the period is short – only 6 seconds. That’s windswell, not groundswell. Plus it’s cross-shore with a fresh breeze creating lumpy cross-chop. This is getting into expert territory size-wise, especially with that wind. If you’re a strong paddler and don’t mind a fight, you might find something, but don’t expect clean lines. Honestly, the setup with that wind and beach break looks more interesting for kite surfing than paddle surfing.

After that, it drops right back to tiny, clean, but almost flat conditions from the 20th through the 26th. Glassy mornings on the 22nd and 23rd will be lovely for a paddle, but you won’t be surfing.

The outlook gets a little more interesting again on Thursday the 27th of August. The swell builds to 5ft in the morning (158 combined energy) and 6ft in the afternoon (239 combined energy) from the SSW. Still short period (6 seconds) and onshore wind at 22 mph. It’ll be a messy, blown-out 1-2 foot mess. Not the standout.

The one glimmer in this whole 16-day run might be Friday the 28th of August. We get a 4ft swell from the SSW (187 combined energy) with a slightly longer period of 8 seconds, and the wind shifts NNW at 12 mph – cross-off and clean. That’s the best combo in the whole window. The size is solid for a decent session, and clean. It’s not epic, but after all this quiet, it’s the one day where you’ve got a real shot at some fun, lined-up waves without being chewed up by the wind. Worth marking on the calendar, but it’s far out, so keep an eye on it.

Alright, that’s the long and short of it. A lot of waiting, one scrappy day mid-week, and a cleaner window at the very end. Stay tuned.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Fri morning. Warm (max 26°C on Wed night, min 14°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Mon afternoon. Very mild (max 19°C on Tue morning, min 13°C on Sat night). Winds increasing (light winds from the E 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
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
SW
11
0.1
SW
11
0.8
SW
4
0.4
SW
4
0.3
SW
4
0.1
SW
7
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.5
N
4
0.3
N
4
1.2
SSW
4
1.3
SW
6
0.9
SW
6
0.5
SW
6
0.8
SSW
4
1.9
SW
6
2.1
SW
6
1.9
WSW
6
2.4
NW
7
Wave Graph
Metric surfscale
Energy kJ
5
4
24
5
3
2
1
2
1
0
0
0
47
107
52
18
15
266
359
230
505
Wind (km/h)
15
SSW
15
SW
20
S
15
W
15
N
15
N
25
N
20
NNW
15
N
15
NNW
15
NNW
5
E
25
S
25
SSW
10
SW
20
SSW
35
S
35
WNW
35
WNW
25
NW
15
NNW
Wind State
on
on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
on
on
on
cross-on
cross
cross
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
4:50AM-0.29m
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
part cloud
part cloud
part cloud
light rain
part cloud
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
light rain
light rain
light rain
part cloud
rain showers
rain showers
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:54
5:56
5:58
6:00
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:51
8:49
8:45
8:44
8:42
8:39
8:37
 mm
1
2
4
1
1
3
Temp °C
22
22
19
17
17
16
14
15
15
15
16
15
16
17
18
19
19
19
16
17
16
Feels °C
20
22
17
17
15
14
9
11
12
12
13
13
12
15
18
17
15
15
11
13
14
  • 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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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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