Valley Left surfForecast / Mayo and Achill Island / Ireland

information circle12 Day Weather and Surf, issued 5 pm Monday 02 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
8.5° C
(Which is slightly cooler than normal)

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 Tuesday (Mar 03) at 12AM. The primary swell is predicted to be 3.0m and 11s 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 3.0m 14s and forecast to arrive on Monday (Mar 09) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.5m 18s period and expected on Saturday (Mar 07) at 12AM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 3rd Mar)10ft (3.0m) 11s
Best Surf 9AM (Mon 9th Mar)10ft (3.0m) 14s
Most Powerful 9AM (Mon 9th Mar)10ft (3.0m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Moderate rain (total 12mm), heaviest on Thu morning. Very mild (max 12°C on Wed afternoon, min 5°C on Thu morning). Winds increasing (calm on Mon night, fresh winds from the NNW by Thu morning).

Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Sun morning. Very mild (max 10°C on Sat afternoon, min 5°C on Thu afternoon). Winds increasing (light winds from the WNW on Thu night, strong winds from the S by Sat afternoon).

Mon
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Saturday
07
Sunday
08
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
3
2
1
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
4
Swell
Height Map
Wave Height (m) & direction (?)
4.5
W
3
NW
2.2
NNW
1.9
NNW
1.3
NNW
0.9
NNW
0.7
NNW
1.3
WNW
2.2
NW
3
WNW
0.3
NNW
3
WNW
3
W
5.5
W
5
W
3.5
W
4
W
3
WNW
2.5
WNW
2.5
WNW
3
WNW
Period(s) (?)13111111101211168131013131816151312121214
Wave
Graph
(?)Metric surfscale
Energy kJ (?)0204410828153452541358385940190000000208120894237
Wind
(km/h)
35
NNW
5
NE
10
ESE
15
SE
15
SE
15
SE
25
S
20
SSE
30
NNW
35
N
10
N
10
SW
25
SSW
20
SSE
40
S
40
S
40
S
15
W
30
W
30
WNW
10
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
glasscross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
on
ononcross-
off
offoffoffoffoffcrosscrosscrosscross-
off
High Tide
/ height (m)
5:21PM
2.98
5:30AM
3.57
5:57PM
3.08
6:06AM
3.63
6:31PM
3.14
6:40AM
3.58
7:03PM
3.13
7:13AM
3.44
7:34PM
3.08
7:45AM
3.23
8:04PM
2.98
8:17AM
2.98
8:35PM
2.83
8:50AM
2.70
Low Tide
/ height (m)
11:10PM
0.28
11:48AM
-0.03
11:46PM
0.16
12:21PM
-0.07
12:21AM
0.13
12:53PM
-0.02
12:54AM
0.17
1:22PM
0.12
1:28AM
0.28
1:51PM
0.31
2:01AM
0.46
2:19PM
0.55
2:35AM
0.68
Mon
02
Tuesday
03
Wednesday
04
Thursday
05
Friday
06
Saturday
07
Sunday
08
Sunrise--7:24--7:22--7:20--7:16--7:15--7:11--7:09
Sunset6:16--6:19--6:21--6:22--6:24--6:27--6:29--
clear
clear
clear
clear
part cloud
cloud
cloud
light rain
mod rain
light rain
part cloud
clear
part cloud
part cloud
cloud
part cloud
rain showers
mod rain
light rain
part cloud
part cloud
Rain (mm)
-------574------171--
Temp. °C98688111210667679910107787
Feels °C (?)14333676-1031111113-112
  • 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

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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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