Using Surf-Forecast’s Historical Surf Data To Find The Most Consistent Waves On Earth
Using our statistical data for 7000 spots dating back to 2006, we can find those waves that break the most, with the best winds.
Surf Forecasts:
Kilcummin Harbour surfForecast / Mayo and Achill Island / Ireland
48hr Weather and Surf, issued 5 am Monday 29 Dec 2025 ISTForecast update in hr min s Forecast update imminent
Kilcummin Harbour surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Kilcummin Harbour sea temperature is
10.0° C
(Which is normal for this time of year)How big are the waves at Kilcummin Harbour today?
The current surf forecast for Kilcummin Harbour at 9AM is: 0.8m 13s primary swell from a West direction and 0.5m 11s secondary swell from a North direction, 0.4m 8s secondary swell from a North-northeast direction (forecast issued at 05:00am December 29). The wind direction is predicted to be cross-shore.
| Time (IST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Dec) | 2.5ft (0.8m) | 13s |
| Afternoon (29 Dec) | 2.5ft (0.7m) | 12s |
| Evening (29 Dec) | 2.5ft (0.7m) | 12s |
Table - waves today at Kilcummin Harbour. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 29 | Tuesday 30 | Wednesday 31 | Thu 01 | |||||||||||||||||||||
| 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 0 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 16 | 16 | 15 | 14 | 14 | 13 | 13 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 285 | 219 | 222 | 215 | 151 | 146 | 141 | 138 | 97 | 127 | 124 | 210 | 202 | 196 | 285 | 277 | 220 | 216 | 213 | 166 | 163 | 127 | 125 | 121 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | cross- off | cross- off | cross- off | cross- off | cross |
High Tide / height (m) | 12:20PM 2.89 | 1:18AM 2.62 | 1:33PM 2.89 | 2:25AM 2.81 | 2:44PM 2.97 | |||||||||||||||||||
Low Tide / height (m) | 5:53AM 1.05 | 6:54PM 0.70 | 7:15AM 0.98 | 8:01PM 0.61 | 8:29AM 0.80 | 9:02PM 0.49 | ||||||||||||||||||
Monday 29 | Tuesday 30 | Wednesday 31 | Thu 01 | |||||||||||||||||||||
| Sunrise | - | - | 8:56 | - | - | - | - | - | - | - | 8:56 | - | - | - | - | - | - | - | 8:56 | - | - | - | - | - |
| Sunset | - | - | - | - | 4:19 | - | - | - | - | - | - | - | 4:20 | - | - | - | - | - | - | - | 4:21 | - | - | - |
 | |  |  | | | | | | | | | |  | | | | |  | | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 4 | 5 | 6 | 6 | 6 | 6 | 5 | 4 | 3 | 3 | 3 | 2 | 2 | 3 | 4 | 4 | 6 |
| Feels °C (?) | 1 | 0 | 0 | 0 | -1 | -1 | -1 | 0 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | -1 | -1 | -1 | -2 | -2 | -1 | 0 | -1 | 1 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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