This is an unofficial forecast. The aim is to help people with their forward planning. Current wave height calculations don’t take into account the different fetches for different wind directions, nor does it take into account the duration of the wind.

Always check with CalMac for the details of the service between Brodick and Ardrossan, or Lochranza and Claonaig / Tarbert.

Brodick - Be aware Lochranza - Normal service
Tuesday 5th July
Time Port Affected? Waves Dir Wind Gust Sea Temp. Fog
03:00 Should be fine 5.09ft WNW 16 mph 16 mph
04:00 Should be fine 5.11ft WNW 16 mph 16 mph
05:00 Should be fine 5.13ft WNW 17 mph 17 mph
06:00 Should be fine 5.16ft WNW 17 mph 17 mph
07:00 Should be fine 5.12ft NW 17 mph 17 mph
08:00 Should be fine 5.08ft NW 16 mph 16 mph
09:00 Should be fine 5.04ft NW 15 mph 15 mph
10:00 Should be fine 4.97ft NW 13 mph 13 mph
11:00 Should be fine 4.96ft NW 13 mph 13 mph
12:00 Should be fine 4.97ft NW 13 mph 13 mph
13:00 Should be fine 4.96ft NW 13 mph 13 mph
14:00 Should be fine 4.91ft NW 12 mph 12 mph
15:00 Should be fine 4.89ft NW 12 mph 12 mph
16:00 Should be fine 4.83ft WNW 11 mph 11 mph
17:00 Should be fine 4.69ft WNW 9 mph 9 mph
18:00 Should be fine 4.59ft W 8 mph 8 mph
19:00 Should be fine 4.7ft WSW 9 mph 9 mph
20:00 Should be fine 4.86ft W 11 mph 11 mph
21:00 Should be fine 4.93ft W 13 mph 13 mph
22:00 Should be fine 4.96ft WSW 13 mph 13 mph
23:00 Should be fine 5.07ft WSW 15 mph 15 mph
Wednesday 6th July
Time Port Affected? Waves Dir Wind Gust Sea Temp. Fog
00:00 Should be fine 5.09ft W 16 mph 16 mph
01:00 Possibly Ardrossan 5.14ft W 17 mph 17 mph
02:00 Possibly Ardrossan 5.14ft W 17 mph 17 mph
03:00 Possibly Ardrossan 5.17ft W 18 mph 18 mph
04:00 Possibly Ardrossan 5.14ft W 17 mph 17 mph
05:00 Possibly Ardrossan 5.13ft W 17 mph 17 mph
06:00 Possibly Ardrossan 5.13ft WSW 17 mph 17 mph
07:00 Possibly Ardrossan 5.18ft WSW 18 mph 18 mph 1%
08:00 Possibly Ardrossan 5.15ft WSW 17 mph 17 mph 2%
09:00 Possibly Ardrossan 5.16ft WSW 17 mph 17 mph
10:00 Possibly Ardrossan 5.25ft W 20 mph 20 mph 1%
11:00 Possibly Ardrossan 5.26ft W 20 mph 20 mph
12:00 Possibly Ardrossan 5.31ft W 21 mph 21 mph
13:00 Possibly Ardrossan 5.32ft W 22 mph 22 mph
14:00 Possibly Ardrossan 5.33ft W 22 mph 22 mph
15:00 Possibly Ardrossan 5.3ft W 21 mph 21 mph
16:00 Possibly Ardrossan 5.26ft W 20 mph 20 mph
17:00 Possibly Ardrossan 5.28ft WNW 21 mph 21 mph
18:00 Possibly Ardrossan 5.26ft WNW 20 mph 20 mph
19:00 Possibly Ardrossan 5.26ft WNW 20 mph 20 mph
20:00 Possibly Ardrossan 5.31ft WNW 21 mph 21 mph
21:00 Possibly Ardrossan 5.32ft WNW 22 mph 22 mph
22:00 Possibly Ardrossan 5.33ft WNW 22 mph 22 mph
23:00 Possibly Ardrossan 5.33ft NW 22 mph 22 mph
Thursday 7th July
Time Port Affected? Waves Dir Wind Gust Sea Temp. Fog
00:00 Possibly Ardrossan 5.29ft NW 21 mph 21 mph
01:00 Possibly Ardrossan 5.28ft NW 21 mph 21 mph
02:00 Possibly Ardrossan 5.27ft NW 20 mph 20 mph
03:00 Possibly Ardrossan 5.29ft NW 21 mph 21 mph
04:00 Possibly Ardrossan 5.25ft NW 20 mph 20 mph
05:00 Possibly Ardrossan 5.19ft NW 18 mph 18 mph
06:00 Possibly Ardrossan 5.15ft NW 17 mph 17 mph
07:00 Possibly Ardrossan 5.11ft NW 16 mph 16 mph
08:00 Should be fine 5.09ft NW 16 mph 16 mph
09:00 Should be fine 5.02ft NW 14 mph 14 mph
10:00 Should be fine 4.96ft NW 13 mph 13 mph
11:00 Should be fine 4.91ft NW 12 mph 12 mph
12:00 Should be fine 4.79ft NW 10 mph 10 mph
13:00 Should be fine 4.7ft NW 9 mph 9 mph
14:00 Should be fine 4.8ft WNW 11 mph 11 mph
15:00 Should be fine 4.86ft WNW 11 mph 11 mph
16:00 Should be fine 4.8ft NW 11 mph 11 mph
17:00 Should be fine 4.75ft NW 10 mph 10 mph
18:00 Should be fine 4.83ft WNW 11 mph 11 mph
Friday 8th July
Time Port Affected? Waves Dir Wind Gust Sea Temp. Fog
00:00 Should be fine 4.86ft WNW 11 mph 11 mph
06:00 Should be fine 4.75ft W 10 mph 10 mph
12:00 Should be fine 4.82ft WNW 11 mph 11 mph
18:00 Should be fine 4.69ft NW 9 mph 9 mph
Saturday 9th July
Time Port Affected? Waves Dir Wind Gust Sea Temp. Fog
00:00 Should be fine 4.84ft WNW 11 mph 11 mph
06:00 Should be fine 4.7ft W 9 mph 9 mph
12:00 Should be fine 4.55ft WNW 7 mph 7 mph
18:00 Should be fine 4.74ft NNW 10 mph 10 mph
Sunday 10th July
Time Port Affected? Waves Dir Wind Gust Sea Temp. Fog
00:00 Should be fine 4.29ft NNW 5 mph 5 mph
06:00 Should be fine 4.38ft SSW 6 mph 6 mph
12:00 Should be fine 4.26ft SSW 5 mph 5 mph
18:00 Should be fine 4.16ft ENE 4 mph 4 mph
Monday 11th July
Time Port Affected? Waves Dir Wind Gust Sea Temp. Fog
00:00 Should be fine 3.88ft NW 3 mph 3 mph
06:00 Should be fine 4.84ft SSW 11 mph 11 mph
12:00 Possibly Ardrossan 5.21ft SSW 19 mph 19 mph
18:00 Should be fine 4.84ft SW 11 mph 11 mph
Tuesday 12th July
Time Port Affected? Waves Dir Wind Gust Sea Temp. Fog
00:00 Should be fine 5.07ft SW 15 mph 15 mph
06:00 Possibly Ardrossan 5.12ft SW 17 mph 17 mph
12:00 Possibly Ardrossan 5.24ft WSW 19 mph 19 mph
18:00 Possibly Ardrossan 5.22ft WNW 19 mph 19 mph
Wednesday 13th July
Time Port Affected? Waves Dir Wind Gust Sea Temp. Fog
00:00 Possibly Ardrossan 5.17ft WNW 18 mph 18 mph
06:00 Should be fine 5.08ft NW 16 mph 16 mph
Forecast produced: 2022-07-13T12:00:00Z

Just for fun! Always check with CalMac regarding the actual status of your sailings.