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Surf Forecasts:

Valley Left surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 5 pm Monday 24 Nov 2025 IST
Forecast update in hr  min  s Forecast update imminent
Valley Left surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Valley Left sea temperature is
11.5° C
 (Which is normal for this time of year)

Best Forecast Surf Conditions for Valley Left this week:

The surf forecast for Valley Left over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Nov 30) at 6AM. The primary swell is predicted to be 3.0m and 12s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Valley Left in the next 12 days are 5.5m 13s and forecast to arrive on Saturday (Nov 29) at 12PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 8.0m 17s period and expected on Friday (Nov 28) at 12AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Sun 30th Nov)10ft (3.0m) 12s
Best Surf 6AM (Sun 30th Nov)10ft (3.0m) 12s
Most Powerful12PM (Sat 29th Nov)18ft (5.5m) 13s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 27mm), heaviest during Wed night. Very mild (max 13°C on Wed night, min 9°C on Mon night). Winds increasing (calm on Tue morning, strong winds from the SW by Thu morning).

Days 3-6 Weather Summary Moderate rain (total 17mm), heaviest on Thu afternoon. Very mild (max 10°C on Thu afternoon, min 8°C on Fri afternoon). Winds decreasing (near gales from the SW on Thu night, calm by Sat night).

Mon
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.2
WNW
1.6
WNW
1.2
WNW
1
WNW
0.6
WNW
0.2
WNW
0.3
WNW
1.6
W
3
SW
4
WSW
8
W
7.5
W
7
W
6
W
5.5
WNW
5
WNW
4
WNW
2.5
NNW
2.1
NNW
1.6
NNW
5
W
Period(s) (?)1099981513109101716151413121112121111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)9174002031444321350000000080454078204711905820
Wind
(km/h)
30
NNE
20
NNW
0
NNW
20
SSW
35
S
10
SSE
15
SW
25
S
40
WSW
50
SW
55
SW
50
WSW
45
WSW
40
W
35
WNW
35
WNW
20
NNW
10
SSE
35
SSW
30
SSW
25
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononglasscross-
off		offoffcross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
on		cross-
on		cross-
off		offcross-
off		cross
High Tide
/ height (m)
7:52PM
2.48
8:14AM
2.89
8:34PM
2.33
8:59AM
2.79
9:27PM
2.20
9:50AM
2.70
10:33PM
2.14
10:50AM
2.66
11:49PM
2.17
11:55AM
2.68
1:01AM
2.33
1:01PM
2.77
2:03AM
2.56
Low Tide
/ height (m)
1:40AM
0.75
2:31PM
0.85
2:19AM
0.86
3:22PM
0.93
3:05AM
0.98
4:24PM
0.94
4:07AM
1.10
5:34PM
0.87
5:24AM
1.15
6:42PM
0.71
6:44AM
1.09
7:41PM
0.52
7:53AM
0.91
Mon
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Sunrise--8:23--8:26--8:27--8:29--8:30--8:33--8:33
Sunset4:29--4:28--4:25--4:24--4:23--4:23--4:22--
clear
clear
part cloud
cloud
mod rain
light rain
cloud
heavy rain
light rain
rain showers
light rain
rain showers
light rain
rain showers
light rain
rain showers
rain showers
part cloud
cloud
heavy rain
part cloud
Rain (mm)
----83-14213224212--16-
Temp. °C10991010121213121099991010109101110
Feels °C (?)3275410975-1-3-3112255264
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Latest Updates

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Ben Mondy

Quiksilver Teams Up With PrimaLoft® For World’s First Thermal Layering System for a Wetsuit.

Feel that? If you are in the northern hemisphere, you will have had that first bite of winter. The lick of a frost, the chill of a cold offshore breeze and the sound of winter swells pounding the shores. If you are near the mountains, your favourite jackets, gloves, and footwear might get dusted off and prepped for battle. And in that beautiful Venn diagram, you will find PrimaLoft. They have spent over 40 years developing innovative insulations that have powered your warmest winter gear. In t

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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Valley Left 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.

View detailed surf forecast for Valley Left at:
surf-forecast.com

Information about the Valley Left Surf forecast

The above surf forecast table for Valley Left provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Valley Left can be found by selecting the local surf guide option on the grey menu. Our Valley Left 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 (Valley Left) 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 Valley Left 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.

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