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Surf Forecasts:
Valley Left surfForecast / Mayo and Achill Island / Ireland
16 Day Weather and Surf, issued 6 am Saturday 16 May 2026 ISTForecast 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
11.6° C
(Which is normal for this time of year)Best Forecast Surf Conditions for Valley Left this week:
The most powerful waves expected at Valley Left in the next 16 days are 1.0m 10s and forecast to arrive on Tuesday (May 19) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 13s period and expected on Sunday (May 17) at 1AM.
| Wave Type | Time (IST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 1AM (Tue 19th May) | 3.5ft (1.0m) 10s |
Table - best surf conditions forecast for Valley Left over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 25mm), heaviest during Sun morning. Very mild (max 12°C on Mon morning, min 8°C on Sun night). Winds decreasing (fresh winds from the W on Sat night, calm by Sun night). | Days 4-6 Weather SummaryModerate rain (total 17mm), heaviest on Wed night. Very mild (max 15°C on Thu afternoon, min 10°C on Tue night). Winds decreasing (fresh winds from the SW on Tue night, light winds from the SSW by Wed afternoon). | ||||||||||||||||||||
Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
WNW 7 | W 12 | W 13 | W 12 | W 12 | W 11 | W 11 | W 10 | WNW 10 | WNW 9 | WNW 9 | WSW 14 | WSW 13 | NNW 7 | SW 11 | SW 10 | SW 11 | SW 10 | SW 10 | SW 10 | W 10 | |
206 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 201 | 33 | 8 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross | cross | cross | cross | glassy | cross-off | off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | off | off | off | off | off | off | |
High Tide | 6:10PM3.37m | 6:26AM3.35m | 6:53PM3.48m | 7:15AM3.30m | 7:38PM3.52m | 8:06AM3.15m | 8:26PM3.47m | 9:00AM2.93m | 9:19PM3.36m | 9:58AM2.67m | 10:16PM3.21m | 11:03AM2.45m | 11:19PM3.05m | ||||||||
Low Tide | 11:50AM-0.01m | 00:14AM0.14m | 12:32PM0.00m | 1:01AM0.05m | 1:16PM0.09m | 1:50AM0.06m | 2:01PM0.24m | 2:44AM0.15m | 2:49PM0.43m | 3:42AM0.31m | 3:41PM0.64m | 4:49AM0.48m | 4:41PM0.84m | ||||||||
 | |  |  | |  |  |  |  | | | |  |  | | | | | | |  | |
 | 5:35 | — | — | 5:33 | — | — | 5:33 | — | — | 5:31 | — | — | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — |
 | — | — | 9:37 | — | — | 9:37 | — | — | 9:39 | — | — | 9:42 | — | — | 9:43 | — | — | 9:45 | — | — | 9:45 |
1 | 1 | 3 | 7 | 2 | — | — | 2 | 9 | 2 | 3 | 2 | — | — | 4 | — | 1 | 5 | 2 | — | — | |
Temp °C | 11 | 11 | 9 | 10 | 10 | 9 | 12 | 11 | 12 | 12 | 12 | 11 | 11 | 12 | 13 | 14 | 15 | 13 | 13 | 13 | 12 |
4 | 3 | 1 | 3 | 6 | 6 | 8 | 6 | 9 | 8 | 6 | 5 | 6 | 10 | 10 | 9 | 10 | 10 | 11 | 9 | 9 | |
Swell 1 Height (m) Direction Period (s) | W 13 | N 10 | N 10 | N 10 | W 12 | W 11 | W 11 | W 10 | WNW 10 | WNW 9 | W 13 | N 8 | N 8 | NNW 7 | N 6 | WSW 10 | WSW 11 | SW 10 | N 8 | N 8 | SW 9 |
 kJ | 130 | 53 | 31 | 30 | 2868 | 1655 | 901 | 584 | 201 | 33 | 55 | 13 | 5 | 5 | 7 | 125 | 130 | 898 | 22 | 12 | 197 |
Swell 2 Height (m) Direction Period (s) | NNE 8 | SW 13 | SW 13 | — | N 10 | N 9 | NNE 9 | NNE 9 | SSW 6 | N 8 | N 8 | — | — | N 8 | SSW 16 | — | — | N 9 | SSW 14 | SSW 14 | W 10 |
| kJ | 21 | 7 | 7 | — | 16 | 15 | 16 | 15 | 25 | 21 | 20 | — | — | 1 | 24 | — | — | 13 | 21 | 20 | 235 |
Swell 3 Height (m) Direction Period (s) | N 10 | — | — | — | — | SW 12 | S 14 | S 15 | N 9 | W 13 | WNW 9 | — | — | — | — | — | — | SW 15 | SW 18 | SW 18 | N 8 |
| kJ | 19 | — | — | — | — | 6 | 4 | 4 | 24 | 31 | 8 | — | — | — | — | — | — | 9 | 12 | 12 | 5 |
Wind waves Height (m) Direction Period (s) | WNW 7 | W 12 | W 13 | W 12 | W 12 | — | — | — | ESE 3 | SW 6 | SW 8 | WSW 14 | WSW 13 | SW 12 | SW 11 | SW 10 | SW 11 | S 2 | SW 10 | SW 10 | — |
| kJ | 206 | 1415 | 4310 | 3591 | 416 | — | — | — | 6 | 206 | 689 | 4107 | 3158 | 2349 | 1682 | 2304 | 2150 | 1 | 887 | 614 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 84 | 311 | 251 | 70 | 226 | 10 | 29 | 70 | 198 | 48 | 199 | 226 | 197 | 190 | 29 | 29 | 56 | 48 | 35 | 55 | 48 |
Best forecast wave conditions in Mayo and Achill Island | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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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