Rhosneigr surfForecast / Wales – Anglesy / UK

information circle12 Day Weather and Surf, issued 11 pm Wednesday 10 Dec 2025 GMT
Forecast update in hr  min  s Forecast update imminent
Rhosneigr surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rhosneigr sea temperature is
10.9° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Rhosneigr this week:

The surf forecast for Rhosneigr over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Dec 12) at 3AM. The primary swell is predicted to be 1.4m and 13s period with a secondary swell of 0.4m and 3s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Rhosneigr in the next 12 days are 5.0m 10s and forecast to arrive on Wednesday (Dec 17) at 3PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (GMT) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Fri 12th Dec)4.5ft (1.4m) 13s
Best Surf 3AM (Fri 12th Dec)4.5ft (1.4m) 13s
Most Powerful 3PM (Wed 17th Dec)16ft (5.0m) 10s

Table - best surf conditions forecast for Rhosneigr over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 9mm), mostly falling on Sat afternoon. Very mild (max 12°C on Thu morning, min 8°C on Thu night). Winds increasing (calm on Thu night, near gales from the SSW by Sat afternoon).

Days 3-6 Weather Summary Heavy rain (total 69mm), heaviest during Sun morning. Very mild (max 11°C on Sat night, min 7°C on Mon morning). Winds decreasing (near gales from the S on Sun afternoon, calm by Tue morning).

Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wed
17
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
0
0
2
0
0
0
0
0
0
0
0
0
2
2
1
1
1
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
3
SW
3.5
SSW
3
SSW
1.5
SSW
1
SW
0.5
SW
1.7
SW
3.5
SW
4
SW
3.5
SW
3
SSW
4
SSW
3
SW
1.3
SSW
1
SSW
0.9
SSW
0.3
SW
0.5
SW
1.4
SW
4
SSW
5
SSW
Period(s) (?)8999919689989109981475810
Wave
Graph
(?)Metric surfscale
Energy kJ (?)10081724144934617317517815972866208512112775169529515710929278719964591
Wind
(km/h)
50
SSW
50
S
45
S
10
NW
15
SSW
25
SW
25
SW
50
SSW
55
SSW
45
SW
35
S
55
S
45
SSW
5
N
5
E
10
NE
5
ENE
5
SE
30
SSW
55
S
25
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
on
cross-
on
crosscross-
on
onononononcross-
on
cross-
on
cross-
on
cross-
off
cross-
off
offglassglasscross-
on
cross-
on
on
High Tide
/ height (m)
1:48AM
3.17
2:03PM
3.61
3:01AM
3.02
3:12PM
3.42
4:12AM
2.99
4:20PM
3.30
5:13AM
3.04
5:21PM
3.26
6:03AM
3.15
6:15PM
3.27
6:47AM
3.28
7:02PM
3.33
7:28AM
3.42
Low Tide
/ height (m)
8:17AM
0.99
9:04PM
0.72
9:18AM
1.19
10:08PM
0.90
10:26AM
1.30
11:13PM
0.99
11:37AM
1.29
12:14AM
1.00
12:39PM
1.18
1:06AM
0.95
1:30PM
1.03
1:50AM
0.88
2:13PM
0.86
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wed
17
Sunrise-8:21--8:22--8:22--8:23--8:25--8:26--8:26-
Sunset--4:00--3:59--3:59--3:59--3:59--4:00--4:00
part cloud
part cloud
part cloud
rain showers
part cloud
clear
part cloud
part cloud
light rain
light rain
heavy rain
heavy rain
heavy rain
light rain
light rain
light rain
cloud
clear
part cloud
mod rain
rain showers
Rain (mm)
---4----53141432312---81
Temp. °C111212111010101112111111117778891012
Feels °C (?)3235444010501544663-16
  • 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 12 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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