Rhosneigr Surf Break

Lat Long: 53.24° N 4.53° W

Rhosneigr Surf Forecast and Surf Report

Issued: 6 pm 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Rhosneigr sea temperature is
17.8°C
2.2° 

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


Rhosneigr surf forecast from 28 Aug 2026:

  • Best quality surf: Saturday 29 Aug, 10PM (local time) - 2.5ft (0.8m), 8s period, SSW swell with glassy winds.
  • Most powerful swell: Wednesday 2 Sep, 7PM (local time) - 7.5ft (2.3m), 7s period, SW swell with 481 kJ wave energy.
  • Next surfable swell (1★+): Saturday 29 Aug, 10PM (local time) - 2.5ft (0.8m), 8s period with SSW 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 Saturday (Aug 29) at 10PM. The primary swell is predicted to be 0.8m and 8s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Rhosneigr in the next 16 days are 2.3m 7s and forecast to arrive on Wednesday (Sep 02) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 5s period and expected on Monday (Aug 31) at 4PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Sat 29th Aug)2.5ft (0.8m) 8s
Best Surf10PM (Sat 29th Aug)2.5ft (0.8m) 8s
Most Powerful 7PM (Wed 2nd Sep)7.5ft (2.3m) 7s

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


The Lowdown

Alright, Rusty here. Let’s have a proper look at what’s coming our way for the next couple of weeks. I’ll level with you straight off the bat: it’s a pretty grim picture on the whole. We’re looking at a long stretch with barely anything worth paddling out for, and even when there’s a bit of swell, the wind and conditions just ain’t playing ball. This is one of those times where you might find a better use for the board bag.

The water at the main spot, Rhosneigr, is sitting at 64°, which is a solid 4° warmer than usual for late August. That’s pretty notable – feels like a warm bath compared to normal.

We kick off on Friday the 28th of August, and honestly, it’s a write-off. Swell’s a tiny 2 ft from the southwest, with a short period of 6 seconds, and a moderate breeze blowing straight onshore. The wave energy is weak (23), and the surf is just poor. Nothing doing.

Saturday the 29th starts with light rain and a cross-on breeze, swell barely 3 ft. The afternoon cleans up a touch with a cross-off wind and only 2 ft of swell, but it’s still tiny and weak (25). Not worth getting wet for.

Sunday the 30th sees the wind pick up – strong cross-on breeze up to 18 mph with a lumpy 3 ft swell. Nasty. Monday the 31st we get a bit of a spike in energy (170) from a 5 ft northwest swell, but it’s sloppy with a cross-shore breeze. Still poor.

The whole first week is just a bust. Gaps of several days with no real recommendation. The surf’s either too small, too onshore, or both. It’s not until Tuesday the 1st of September clears up a bit, but the swell is still only 3 ft and blown out. No good.

Wednesday the 2nd of September afternoon throws a 7 ft SSW swell our way, with strong energy (322), but it’s accompanied by a 18 mph onshore wind, making it messy and dangerous for anyone but the most experienced in the big stuff. Even then, it’s poor quality.

Thursday the 3rd through to Sunday the 6th is more of the same: waist-to-chest high swell, but always with that cross-on or onshore wind messing it up. The wave energy peaks again on Monday the 7th of September at 451 with a 8 ft south swell, but again, onshore wind kills it.

Now, here’s the one moment where things get interesting, but it’s a long way off and it’s only for experts. On Tuesday the 8th of September, the forecast shows a proper big one – 13 ft of southwest swell, with a very long period of 9 seconds and a huge energy reading (2418). That’s strong wave energy, no doubt. But the wind is a fresh cross-on breeze, making it lumpy and dangerous. This kind of size and power is strictly for experienced surfers only. It’s a standout purely for the size, but the conditions are far from perfect.

After that, it drops off quickly. Wednesday the 9th is back to tiny 1 ft dribble. The only flicker of something slightly better comes late on Thursday the 10th of September, with a 4 ft south swell and an east cross-off breeze giving clean conditions. The score is still just a 1 out of 10, meaning it’s surfable but very ordinary. The energy is low (83).

The final days, right through to Saturday the 12th of September, are just more of the same small, windy, lumpy swells.

To sum it up: the whole 16-day window is a tough one. The only real standout is that big, raw 13 ft day on the 8th of September, but with the cross-on wind, it’s going to be a battle for the brave. For most of us, it’s a period to give the waves a miss and wait for a better run.

Rusty.

Short Range Forecast

Moderate rain (total 10mm), heaviest on Sat morning. Very mild (max 17°C on Fri afternoon, min 14°C on Sun night). Winds increasing (calm on Sat night, fresh winds from the WNW by Mon morning).

Days 5-7 Weather Summary

Heavy rain (total 20mm), heaviest during Tue night. Very mild (max 17°C on Tue afternoon, min 14°C on Tue night). Mainly strong winds.

Fri
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
SW
6
0.8
SSW
6
0.9
SSW
6
0.6
SSW
6
1
SSW
9
0.6
SSW
9
1
SSW
5
1
SW
8
1.4
NW
5
0.6
SSW
8
0.6
SSW
7
0.8
WSW
6
0.7
SW
6
0.9
SW
6
0.7
SW
6
2.1
SSW
6
1.8
SW
7
1.5
WSW
5
1.2
SW
5
1.3
SW
6
Wave Graph
Metric surfscale
Energy kJ
20
46
60
25
157
49
46
122
110
39
35
52
37
46
33
322
287
111
68
97
Wind (km/h)
20
WSW
15
SSW
10
SSE
15
NNE
10
SSW
25
S
30
S
10
SW
30
WNW
15
W
15
SW
25
SW
20
SW
10
S
40
SSW
30
SW
30
W
40
WSW
25
WSW
30
W
Wind State
on
on
cross-on
cross-off
on
cross-on
cross-on
on
cross
cross-on
on
on
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
High Tide
10:32PM4.18m
10:51AM3.84m
11:00PM4.28m
11:19AM3.92m
11:30PM4.30m
11:49AM3.93m
00:03AM4.23m
12:23PM3.87m
00:40AM4.07m
1:01PM3.73m
1:22AM3.82m
1:47PM3.51m
2:14AM3.50m
Low Tide
4:53PM0.30m
5:18AM0.06m
5:26PM0.21m
5:52AM0.00m
6:01PM0.20m
6:27AM0.05m
6:37PM0.27m
7:03AM0.19m
7:16PM0.42m
7:43AM0.43m
7:59PM0.63m
8:28AM0.72m
8:50PM0.88m
rain showers
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light rain
cloud
part cloud
thunderstorm
rain showers
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part cloud
part cloud
part cloud
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rain showers
mod rain
mod rain
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:22
6:24
6:26
6:28
6:30
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:17
8:15
8:13
8:10
8:07
8:06
8:04
 mm
1
5
2
1
1
1
7
6
3
1
2
1
Temp °C
17
16
16
16
16
17
16
15
15
16
16
16
17
17
17
17
17
16
17
15
Feels °C
15
14
15
14
17
13
11
13
10
13
14
12
14
17
12
13
12
10
11
9
  • Map Icons:
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  • 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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