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Grishipoll Bay (Coll) Surf Forecast
/ Scot – Inner Hebrides (18 surf breaks) /
Surf Forecasts:
Grishipoll Bay (Coll) surfForecast / Scot – Inner Hebrides / UK
48hr Weather and Surf, issued 12 pm Saturday 23 Aug 2025 BST
How big are the waves at Grishipoll Bay (Coll) today?
The current surf forecast for Grishipoll Bay (Coll) at 3PM is: 0.6m 9s primary swell from a West-southwest direction and 0.1m 18s secondary swell from a West direction (forecast issued at 12:00pm August 23). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 2ft (0.6m) | 9s |
| Afternoon (23 Aug) | 2ft (0.6m) | 9s |
| Evening (23 Aug) | 1.5ft (0.5m) | 9s |
Table - waves today at Grishipoll Bay (Coll). (Swell directed towards the surf break)
Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||||||
| 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 | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 23 | 23 | 22 | 19 | 18 | 18 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 73 | 69 | 71 | 48 | 51 | 50 | 60 | 65 | 60 | 60 | 92 | 143 | 168 | 194 | 167 | 139 | 131 | 120 | 171 | 270 | 889 | 6636 | 10439 | 9848 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | off | off | off | off | off | off | off | off | off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 7:03AM 3.59 | 7:21PM 3.98 | 7:36AM 3.69 | 7:53PM 4.03 | 8:06AM 3.72 | 8:23PM 3.99 | ||||||||||||||||||
Low Tide / height (m) | 1:12PM 0.17 | 1:39AM 0.16 | 1:47PM 0.08 | 2:13AM 0.14 | 2:20PM 0.08 | 2:44AM 0.20 | ||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:11 | - | - | - | - | - | - | - | 6:13 | - | - | - | - | - | - | - | 6:15 |
| Sunset | - | - | - | 8:46 | - | - | - | - | - | - | - | 8:44 | - | - | - | - | - | - | - | 8:40 | - | - | - | - |
 |  | | |  |  | | | | | | | |  |  |  | | | | |  | | |  | |
Rain (mm) | 1 | - | 1 | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | - | 3 | 1 |
| Temp. °C | 14 | 15 | 15 | 17 | 16 | 16 | 15 | 15 | 16 | 17 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 17 | 18 | 17 | 17 | 16 | 15 | 15 |
| Feels °C (?) | 11 | 11 | 12 | 15 | 14 | 14 | 13 | 12 | 13 | 13 | 15 | 15 | 14 | 12 | 11 | 10 | 8 | 9 | 10 | 9 | 10 | 8 | 8 | 8 |
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Break
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 Scot - Inner Hebrides
moderate winds from the SE at Tiree Island Airport mean that it is offshore at Grishipoll Bay (Coll). 0.5m 9s swell from the WSW to make surfable waves.
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