Rhosneigr Surf Break

Lat Long: 53.24° N 4.53° W

Rhosneigr Surf Forecast and Surf Report

Issued: 12 pm 16 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rhosneigr sea temperature is
18.2° C
2.5° 

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


Rhosneigr surf forecast from 16 Aug 2026:

  • Most powerful swell: Wednesday 19 Aug, 10PM (local time) - 4.5ft (1.4m), 6s period, SW swell with 114 kJ wave energy.

Best Forecast Surf Conditions for Rhosneigr this week:

The most powerful waves expected at Rhosneigr in the next 16 days are 1.4m 6s and forecast to arrive on Wednesday (Aug 19) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Friday (Aug 21) at 1AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10PM (Wed 19th Aug)4.5ft (1.4m) 6s

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


The Lowdown

Hey, Rusty here. Let’s take a look at what’s cooking for Rhosneigr over the next couple of weeks. I gotta level with you – it’s a rough stretch. Every single report in the whole 16-day window is tagged as poor surf conditions, with a flat zero score. So there’s no time I’d actually tell you to paddle out for a proper session. The first few days are totally flat or tiny, and even when a little swell tries to show later, the wind or the quality ruins it. We’re in for a long, quiet period.

Starting Sunday the 16th, it’s a total dud. The water here is running at 65°F, which is about 5°F warmer than normal for this time of year – that’s a big anomaly, feels like a warm pool. But the surf? Zilch. No swell, combined energy at 0, and a light onshore breeze from the SW at 3 mph just messes the surface. Monday and Tuesday are just as bad – tiny 0.3 ft to 0.6 ft swells from the SW or NW, with short, weak periods of 4 to 6 seconds.

Wednesday the 19th brings the closest thing to size, but it’s ugly. A 2 m (about 5 ft) swell from the WSW in the morning, with a combined energy of 122 – so there’s some moderate power. But the wind is onshore at 19 mph, making it choppy and blown out. By the afternoon, the wind hits 22 mph with light rain. That’s a day for the kite surfers, not for paddle surfing.

From the 20th through the 26th, we’re stuck with tiny stuff – mostly 0.3 ft to 1 ft swells from the SW or WNW, with periods all over the place. There are some cleaner moments, like Thursday and Friday mornings with cross-offshore winds, but the swell is way too small to ride. The 22nd and 23rd have a long-period groundswell of 14 to 15 seconds, but at only 0.3 ft, it’s a ghost. The combined energy is in the single digits – totally weak.

Around the 27th and 28th, another pulse arrives. Thursday afternoon the 27th shows a 2 m (about 7 ft) swell from the SSW at 6 seconds, with a combined energy of 271 – the biggest energy of the whole outlook. But the wind is onshore at 22 mph, making it lumpy and only for experts. The 28th has 1 m (about 5 ft) from the SW, but again, strong onshore winds at 22 mph ruin it. Friday afternoon the 30th sees winds hitting 31 mph – a near-gale – with only 0.7 m (about 2 ft) of weak, short-period swell. No good.

The final days into Monday the 31st are more of the same: moderate onshore winds and poor quality. Honestly, for the full 16 days, there are no standouts. The best you could hope for is a tiny, clean wave on a light-wind day, but it’s not worth the trip. Rhosneigr is usually fairly consistent, so this blank run is a downer, but it happens. Forecasts can change, but for now, leave the board at home.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Mon night. Very mild (max 17°C on Mon night, min 14°C on Sun morning). Winds increasing (light winds from the SW on Sun morning, fresh winds from the S by Mon night).

Days 4-6 Weather Summary

Moderate rain (total 11mm), heaviest on Wed afternoon. Very mild (max 17°C on Wed afternoon, min 12°C on Fri night). Winds decreasing (fresh winds from the SW on Wed afternoon, light winds from the NNW by Thu night).

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
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
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
SW
2
0.4
SW
4
0.4
SW
4
0.3
SW
5
0.9
SW
4
0.5
SW
5
0.5
SW
6
0.9
WSW
4
1.5
WSW
5
1.3
SW
5
1
SW
6
0.4
SW
6
0.3
SW
6
0.1
SW
14
0.4
WNW
4
0.1
SW
13
0.1
SW
13
0.1
SW
15
0.1
SW
15
0.1
SW
15
Wave Graph
Metric surfscale
Energy kJ
0
1
4
5
4
34
14
16
25
112
96
64
13
8
8
5
7
7
8
8
8
Wind (km/h)
5
SW
20
SW
15
S
15
W
10
WSW
20
SW
20
WNW
20
SW
25
W
30
WSW
35
SW
25
W
30
NNW
25
NNW
10
NNW
25
NW
20
N
15
N
20
NNW
25
NNW
15
N
Wind State
on
on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
on
on
cross-on
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
12:25PM3.91m
00:40AM4.27m
1:04PM3.73m
1:21AM3.95m
1:44PM3.51m
2:05AM3.58m
2:29PM3.25m
2:56AM3.21m
3:26PM3.00m
4:05AM2.90m
4:46PM2.83m
5:38AM2.76m
6:19PM2.84m
Low Tide
7:05PM0.20m
7:34AM0.15m
7:45PM0.46m
8:13AM0.53m
8:25PM0.77m
8:54AM0.92m
9:10PM1.10m
9:40AM1.27m
10:08PM1.38m
10:45AM1.54m
11:34PM1.55m
12:20PM1.61m
1:12AM1.48m
cloud
cloud
cloud
part cloud
cloud
light rain
part cloud
part cloud
part cloud
cloud
light rain
rain showers
rain showers
part cloud
clear
rain showers
rain showers
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
6:00
6:01
6:03
6:05
6:07
6:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:44
8:42
8:39
8:37
8:36
8:32
8:30
 mm
3
3
3
3
1
1
Temp °C
15
15
16
15
15
17
16
17
17
16
17
16
15
15
14
14
15
13
14
15
14
Feels °C
12
11
15
14
14
15
12
14
14
11
11
12
10
10
12
10
11
9
9
10
11
  • 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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