Valley Left surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 5 am Wednesday 11 Mar 2026 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
8.7° C
(Which is slightly cooler than normal)

Best Forecast Surf Conditions for Valley Left this week:

The most powerful waves expected at Valley Left in the next 12 days are 7.5m 18s and forecast to arrive on Monday (Mar 16) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 9.0m 16s period and expected on Friday (Mar 13) at 3AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 3AM (Mon 16th Mar)25ft (7.5m) 18s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 30mm), heaviest during Thu morning. Very mild (max 11°C on Wed night, min 4°C on Thu afternoon). Mainly gales.

Days 3-6 Weather Summary Heavy rain (total 25mm), heaviest during Mon morning. Very mild (max 10°C on Mon afternoon, min 6°C on Sun afternoon). Winds increasing (light winds from the W on Sat night, near gales from the S by Mon night).

Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
5
2
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
7
W
6
W
0.9
NNW
6.5
W
7.5
W
8.5
W
7
W
6
W
5.5
WNW
4.5
WNW
4
WNW
1.1
NNW
4
WNW
5.5
WNW
8
WNW
6.5
WNW
5.5
WNW
4.5
WNW
4.5
WNW
5
W
0.3
NNW
Period(s) (?)151411141416161513131310101217171715141314
Wave
Graph
(?)Metric surfscale
Energy kJ (?)001860000011284734254342452732857535139266951736100036
Wind
(km/h)
35
W
45
SW
55
SSW
45
WNW
50
WSW
55
WSW
45
W
35
NW
35
WNW
30
W
25
WNW
20
SW
45
W
55
WNW
40
W
35
SSW
45
SSW
55
S
25
W
30
WSW
25
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
cross-
off
crosscross-
off
cross-
off
crosscross-
on
cross-
on
crosscross-
on
cross-
off
crosscrosscrosscross-
off
cross-
off
offcrosscross-
off
cross-
off
High Tide
/ height (m)
10:16AM
2.17
10:57PM
2.26
11:45AM
1.99
12:48AM
2.21
1:49PM
2.01
2:24AM
2.37
3:03PM
2.18
3:19AM
2.63
3:48PM
2.41
3:57AM
2.90
4:24PM
2.65
4:31AM
3.16
4:58PM
2.87
Low Tide
/ height (m)
4:14PM
1.28
5:30AM
1.39
5:54PM
1.41
7:49AM
1.36
7:54PM
1.32
9:03AM
1.14
8:58PM
1.10
9:46AM
0.86
9:40PM
0.85
10:19AM
0.56
10:15PM
0.61
10:50AM
0.28
10:49PM
0.39
Wednesday
11
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Sunrise7:05--7:03--7:00--6:58--6:54--6:52--6:50--
Sunset-6:35--6:37--6:38--6:39--6:42--6:44--6:45-
part cloud
cloud
light rain
mod rain
rain showers
mod rain
rain showers
thunderstorm
light rain
light rain
rain showers
light rain
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
part cloud
rain showers
Rain (mm)
--37274342131233463-1
Temp. °C891176588788986881010787
Feels °C (?)-1-2-2-3-6-90-1-1120-2-70021-100
  • 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

submit an eyeball surf report

Quick surf report for Valley Left:

join our community of surf reporters

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.


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.

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest