Photo: Sebastian Schuster / UnsplashCalMac Ferries
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Photo: Andrew Dawes / Unsplash
Checked against calmac.co.uk on 9 November 2026
The Wemyss Bay to Rothesay ferry takes about 35 minutes with CalMac Ferries.
Planning a trip across to Rothesay on Bute? The Wemyss Bay to Rothesay ferry is run by CalMac Ferries, and you can compare it on Ferryu.
The crossing time is 35 minutes. Sailings depart hourly and the route operates all year round, so it's easy to fit around your plans. Just check the timetable for exact sailing times.
Photo: Sebastian Schuster / UnsplashOpens Direct Ferries, a ferry booking site. Or book direct with CalMac Ferries.
CalMac Ferries sail from Wemyss Bay to Rothesay, with a crossing time of 35 minutes. The service departs hourly and operates all year round, though it's always worth checking the timetable for exact sailing times.
If you're travelling on a Wednesday, note that the winter 2026/2027 timetable includes fewer afternoon sailings to allow for planned vessel maintenance. Plan ahead so you're not caught out.
The summer 2027 timetable will run from 26 March to 17 October 2027. Book early for the best choice of sailings.
Be sure to arrive in good time so you can board without a rush.
Average total for the month, mm (1991–2020)
Average total for the month, mm (1991–2020)
| Month | High °C | Low °C | Rain mm | Sea °C |
|---|---|---|---|---|
| January | 7.6 | 4.6 | 160.8 | 8.8 |
| February | 7.6 | 4.3 | 125.9 | 8.1 |
| March | 8.5 | 4.9 | 108.5 | 8.3 |
| April | 10.4 | 6.2 | 84.1 | 9.4 |
| May | 13.0 | 8.4 | 80.3 | 11.9 |
| June | 15.1 | 11.0 | 86.2 | 13.1 |
| July | 16.6 | 12.8 | 99.6 | 13.8 |
| August | 16.8 | 12.9 | 119.2 | 14.7 |
| September | 15.3 | 11.5 | 112.7 | 14.9 |
| October | 12.7 | 9.2 | 162.2 | 13.6 |
| November | 10.0 | 6.7 | 159.5 | 12.2 |
| December | 8.1 | 4.8 | 162.4 | 10.6 |
1991–2020 averages, ERA5 via Open-Meteo, read at the grid point nearest the port (10 km away). Sea surface: 2023–2024 averages from the Open-Meteo Marine Weather API, which has no sea temperatures before late 2022.
About 35 minutes, depending on the sailing.
35 minutes. (CalMac Ferries, calmac.co.uk)
The summer 2027 timetable will run from 26 March to 17 October 2027. (CalMac Ferries, calmac.co.uk)
On a Wednesday, the winter 2026/2027 timetable includes fewer afternoon sailings to allow for planned vessel maintenance. (CalMac Ferries, calmac.co.uk)
Departs hourly and operates all year round. (CalMac Ferries, calmac.co.uk)
Who sails each route and how long the crossing takes.
| Route | Operator | Crossing |
|---|---|---|
| Wemyss Bay to Rothesay This route | CalMac Ferries | About 35 minutes |
| Aberdeen to Kirkwall | NorthLink Ferries | – |
| Aberdeen to Lerwick | NorthLink Ferries | – |
| Ardrossan to Brodick | CalMac Ferries | About 55 minutes |
| Gills Bay to St Margaret's Hope | Pentland Ferries | – |
| Largs to Cumbrae | CalMac Ferries | – |
| Mallaig to Armadale | CalMac Ferries | About 45 minutes |
| Oban to Castlebay | CalMac Ferries | About 5 hours |
| Oban to Craignure | CalMac Ferries | About 45 minutes |
| Scrabster to Stromness | NorthLink Ferries | About 90 minutes |
| Uig to Lochmaddy | CalMac Ferries | About 105 minutes |
| Uig to Tarbert | CalMac Ferries | About 100 minutes |
| Ullapool to Stornoway | CalMac Ferries | About 2½ hours |