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Surf Forecasts:
Valley Left surfForecast / Mayo and Achill Island / Ireland
48hr Weather and Surf, issued 6 am Wednesday 17 Sep 2025 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
15.6° C
(Which is 1.3°C warmer than normal for this time of year)Updates in hr min s Forecast update imminent
Wednesday 17 | Thursday 18 | Friday 19 | Sat 20 | |||||||||||||||||||||
| 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 9 | 11 | 12 | 13 | 13 | 12 | 16 | 15 | 10 | 10 | 10 | 9 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 10 | 10 | 13 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 51 | 21 | 785 | 615 | 460 | 264 | 357 | 679 | 920 | 918 | 767 | 636 | 512 | 0 | 0 | 42 | 320 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross |
High Tide / height (m) | 3:09AM 2.30 | 3:28PM 2.76 | 4:18AM 2.48 | 4:27PM 3.00 | 5:05AM 2.67 | 5:12PM 3.20 | ||||||||||||||||||
Low Tide / height (m) | 9:06AM 1.08 | 10:08PM 0.69 | 10:09AM 0.87 | 10:57PM 0.46 | 10:55AM 0.65 | 11:35PM 0.27 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Sat 20 | |||||||||||||||||||||
| Sunrise | - | - | 7:15 | - | - | - | - | - | - | - | 7:16 | - | - | - | - | - | - | - | 7:18 | - | - | - | - | - |
| Sunset | - | - | - | - | - | 7:52 | - | - | - | - | - | - | - | 7:49 | - | - | - | - | - | - | - | 7:46 | - | - |
 |  |  | |  | |  |  | | | | |  | |  | | | | | |  | | | | |
Rain (mm) | 7 | - | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 16 | 15 | 14 | 15 | 14 | 14 | 14 | 14 | 14 | 13 | 14 | 14 | 16 | 16 | 15 | 14 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 |
| Feels °C (?) | 10 | 6 | 6 | 6 | 5 | 5 | 6 | 7 | 9 | 10 | 12 | 13 | 13 | 13 | 11 | 9 | 7 | 7 | 9 | 8 | 7 | 8 | 8 | 9 |
- 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)
Recent Eyeball Surf Reports for Mayo and Achill Island
The wind is still cross-off at Valley Left (strong winds from the SW at Belmullet 23 km from Valley Left). No surfable waves
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23 km away, 39 min ago
47 km/h
SW
0.0
15.6
Air / Water (°C)
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