Valley Left surfForecast / Mayo and Achill Island / Ireland

information circle16 Day Weather and Surf, issued 6 pm Thursday 23 Apr 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
10.1° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Apr 30) at 7AM. The primary swell is predicted to be 1.6m and 14s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Valley Left in the next 16 days are 1.6m 14s and forecast to arrive on Thursday (Apr 30) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 13s period and expected on Tuesday (Apr 28) at 10PM.

Wave TypeTime (IST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 30th Apr)5ft (1.6m) 14s
Best Surf 7AM (Thu 30th Apr)5ft (1.6m) 14s
Most Powerful 4AM (Thu 30th Apr)5ft (1.6m) 14s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Very mild (max 17°C on Fri afternoon, min 10°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Tue afternoon, min 11°C on Sun night). Wind will be generally light.

Thu
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
2
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
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<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.9
SSW
10
0.4
E
3
0.5
E
3
1.2
SW
11
1.4
SW
11
1.2
SW
10
0.1
NW
8
0.1
NW
7
0.1
NW
7
0.7
SW
8
0.7
N
10
0.6
N
10
0.6
N
11
0.6
N
11
0.8
W
14
1.3
W
13
1.6
W
12
0.2
WNW
16
0.8
WNW
16
1.4
WNW
14
1.6
WNW
14
Wave Graph
Metric surfscale
Energy kJ
0
2
5
0
0
0
2
2
2
0
0
0
0
0
0
0
0
26
310
834
876
Wind (km/h)
25
SE
25
ESE
20
ESE
25
SE
15
ESE
10
SE
15
SW
10
S
10
SSW
10
WSW
5
NE
0
S
10
NW
5
E
5
ENE
5
N
10
E
5
ESE
5
NW
10
E
15
ESE
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
glassy
glassy
cross-on
cross
glassy
on
cross-off
cross-off
cross-on
cross
cross-off
High Tide
11:31PM2.84m
12:34PM2.24m
00:55AM2.76m
2:07PM2.24m
2:17AM2.80m
3:21PM2.38m
3:23AM2.90m
4:14PM2.58m
4:15AM3.01m
4:56PM2.77m
4:58AM3.07m
5:31PM2.94m
5:36AM3.11m
Low Tide
4:50PM0.96m
6:15AM0.79m
6:15PM1.13m
7:53AM0.78m
7:52PM1.12m
9:08AM0.63m
9:07PM0.99m
10:01AM0.47m
10:03PM0.81m
10:41AM0.35m
10:47PM0.65m
11:15AM0.27m
11:26PM0.52m
11:46AM0.23m
cloud
part cloud
part cloud
cloud
light rain
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:18
6:16
6:15
6:13
6:09
6:07
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:54
8:57
8:59
9:00
9:02
9:05
9:06
9:07
2
Temp °C
16
13
15
17
13
12
12
11
12
12
12
13
14
14
16
17
17
16
16
16
14
11
8
9
11
9
10
9
9
10
10
11
12
12
12
15
16
16
15
14
14
9
Swell 1
Height (m)
Direction
Period (s)
0.9
SSW
10
1.2
SSW
11
1.4
SW
11
1.2
SW
11
1.4
SW
11
1.2
SW
10
1.1
SW
10
0.9
SW
9
0.8
SW
8
0.7
SW
8
0.7
N
10
0.6
SW
8
0.6
SW
7
0.6
SW
8
0.8
W
14
1.3
W
13
1.6
W
12
1.4
WSW
12
1.2
WSW
11
1.4
WNW
14
1.6
WNW
14
Energy kJ
148
305
431
341
471
310
245
135
82
64
96
45
44
48
243
590
773
497
370
834
876
Swell 2
Height (m)
Direction
Period (s)
0.2
NNE
6
0.1
N
6
0.1
N
7
0.1
N
6
0.1
NW
8
0.1
N
9
0.1
NW
7
0.4
WSW
10
0.6
WSW
8
0.6
N
10
0.6
N
11
0.6
N
11
0.6
W
11
0.7
W
10
0.4
N
10
0.4
N
9
0.8
WNW
16
1
WSW
11
0.9
WSW
10
Energy kJ
3
1
1
1
2
2
2
36
45
68
84
81
86
94
31
28
310
249
184
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
15
0.1
W
9
0.1
N
11
0.1
N
10
0.1
NW
7
0.1
N
9
0.3
N
12
0.4
SSW
8
0.2
W
12
0.3
W
11
0.3
W
16
0.5
SW
7
0.5
N
10
0.2
WNW
16
0.3
N
9
0.4
NNE
9
0.3
NNE
8
Energy kJ
8
2
2
2
2
2
24
25
11
20
45
26
48
26
15
26
14
Wind waves
Height (m)
Direction
Period (s)
0.2
ESE
3
0.4
E
3
0.5
E
3
Energy kJ
1
2
5
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
2
3
1
2
2
1
Distance (km)
216
381
110
110
131
12
110
285
209
209
209
10
12
10
10
10
10
32
59
56
0
Best forecast wave conditions in Mayo and Achill Island
Rating
(10 max)
2
1
1
1
1
2
3
3
2
3
Best forecast wave conditions in Ireland
Rating
(10 max)
2
1
2
2
2
1
1
1
1
1
1
1
1
1
2
3
3
2
2
3
Header Global
Rating
(10 max)
5
5
5
5
4
4
4
4
6
6
8
5
6
6
4
6
9
5
8
5
6
  • 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 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 16 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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