Grishipoll Bay (Coll) surf forecast from 14 Sep 2026:
- Best quality surf: Monday 21 Sep, 1AM (local time) - 10ft (3.0m), 13s period, W swell with cross-onshore winds.
- Most powerful swell: Thursday 17 Sep, 10PM (local time) - 15ft (4.5m), 14s period, W swell with 8,727 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 1PM (local time) - 5ft (1.6m), 10s period with W swell.
Best Forecast Surf Conditions for Grishipoll Bay (Coll) this week:
The surf forecast for Grishipoll Bay (Coll) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 16) at 1PM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.8m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Grishipoll Bay (Coll) in the next 16 days are 4.5m 14s and forecast to arrive on Thursday (Sep 17) at 10PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s period and expected on Monday (Sep 14) at 7PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Wed 16th Sep) | 5ft (1.6m) 10s |
| Best Surf | 1AM (Mon 21st Sep) | 10ft (3.0m) 13s |
| Most Powerful | 10PM (Thu 17th Sep) | 15ft (4.5m) 14s |
Table - best surf conditions forecast for Grishipoll Bay (Coll) over the next 16 days.
- 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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