Surf Forecasts:
Grishipoll Bay (Coll) surf forecast from 13 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.
Short Range ForecastHeavy rain (total 20mm), heaviest during Mon morning. Very mild (max 15°C on Sun night, min 11°C on Tue night). Winds decreasing (strong winds from the S on Mon morning, light winds from the SSW by Wed morning). | Days 5-7 Weather SummaryModerate rain (total 17mm), heaviest on Wed night. Very mild (max 14°C on Wed night, min 12°C on Wed afternoon). Winds decreasing (strong winds from the W on Thu afternoon, moderate winds from the SW by Fri afternoon). | |||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | WSW 9 | WSW 9 | W 8 | WSW 8 | WSW 9 | WSW 10 | W 10 | W 8 | W 11 | W 10 | WSW 8 | W 10 | W 13 | W 14 | W 13 | W 12 | WSW 11 | W 11 | W 10 | W 12 |
Wave Graph  | ||||||||||||||||||||
 kJ | 161 | 94 | 157 | 197 | 512 | 394 | 422 | 304 | 736 | 440 | 555 | 1225 | 5768 | 7522 | 3247 | 1654 | 933 | 815 | 993 | 3429 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross | on | on | on | on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on |
High Tide | 8:18PM4.09m | 8:32AM3.84m | 8:49PM3.86m | 9:02AM3.67m | 9:18PM3.57m | 9:32AM3.43m | 9:48PM3.24m | 10:04AM3.15m | 10:20PM2.90m | 10:41AM2.84m | 11:01PM2.57m | 11:39AM2.54m | 00:25AM2.30m | |||||||
Low Tide | 2:39AM0.07m | 2:51PM0.10m | 3:11AM0.29m | 3:25PM0.36m | 3:42AM0.56m | 3:59PM0.67m | 4:14AM0.87m | 4:36PM1.01m | 4:51AM1.18m | 5:23PM1.35m | 5:44AM1.46m | 6:40PM1.61m | ||||||||
 |  |  | |  |  | |  |  | |  | | | | | | | | |  | |
 | — | — | 6:54 | — | — | 6:56 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:03 | — | — |
 | 7:51 | — | — | 7:47 | — | — | 7:45 | — | — | 7:43 | — | — | 7:39 | — | — | 7:37 | — | — | 7:35 | — |
mm | — | — | 5 | 5 | 6 | 3 | 1 | — | — | 1 | 8 | 2 | 2 | 2 | — | — | 2 | — | — | — |
Temp °C | 14 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 11 | 13 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 13 | 12 | 12 |
Feels °C | 10 | 10 | 9 | 9 | 10 | 9 | 6 | 7 | 8 | 7 | 7 | 4 | 4 | 4 | 6 | 9 | 8 | 4 | 2 | 1 |
Swell 1 Height (m) Direction Period (s) | WSW 9 | WSW 9 | W 8 | WSW 8 | NW 11 | WSW 10 | — | W 8 | W 11 | W 10 | — | — | — | — | — | W 12 | W 11 | — | — | — |
| kJ | 161 | 94 | 157 | 197 | 5 | 394 | — | 304 | 736 | 440 | — | — | — | — | — | 1654 | 734 | — | — | — |
Swell 2 Height (m) Direction Period (s) | WNW 10 | W 9 | SW 9 | W 11 | — | — | — | W 13 | WSW 11 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 131 | 60 | 21 | 39 | — | — | — | 3 | 210 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | NW 14 | NW 13 | NW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 8 | 7 | 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | S 4 | S 4 | S 5 | WSW 9 | — | W 10 | — | — | SW 3 | WSW 8 | W 10 | W 13 | W 14 | W 13 | W 12 | WSW 11 | W 11 | W 10 | W 12 |
| kJ | — | 35 | 35 | 65 | 512 | — | 422 | — | — | 2 | 555 | 1225 | 5768 | 7522 | 3247 | 911 | 933 | 815 | 993 | 3429 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 9 | 109 | 88 | 88 | 171 | 932 | 240 | 590 | 8 | 240 | 250 | 365 | 453 | 898 | 538 | 150 | 155 | 531 | 446 | 312 |
Best forecast wave conditions in Inner Hebrides | ||||||||||||||||||||
Best forecast wave conditions in United Kingdom | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 Grishipoll Bay (Coll) 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 Grishipoll Bay (Coll) Surf forecast
The above surf forecast table for Grishipoll Bay (Coll) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Grishipoll Bay (Coll) can be found by selecting the local surf guide option on the grey menu. Our Grishipoll Bay (Coll) 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 (Grishipoll Bay (Coll)) 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 Grishipoll Bay (Coll) 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.
Are you planning a holiday in Inner Hebrides? If you are looking for accommodation near Grishipoll Bay (Coll), camping, hotels and holiday cottages in Inner Hebrides, consider staying in Tiree which is 26 km (16 miles) away. Other places in and around Inner Hebrides where you can find information about places to rent, and car hire include Lochaline which is 50 km (31 miles) away, Mallaig, Oban and Portree.
Nearest