Is the Aberdeen to Lerwick crossing rough?
In winter, regularly. Aberdeen to Lerwick is the longest domestic ferry route in the UK: 216 miles up the open northern North Sea, overnight on NorthLink's Hrossey and Hjaltland, about 12 hours direct or 14 to 15 via Kirkwall. Summer nights are often easy; the winter gale season gives this route its stories.
Northern North Sea · about 12 hours direct, 14 to 15 hours via Kirkwall, overnight · Reputation among passengers: has a long-standing reputation for rough passages.
- Low
- Moderate
- High
- Very high
Roughness summarises typical reported conditions on this route, not a forecast for any given sailing.
216 miles up the open northern North Sea
Key facts
- The Aberdeen to Lerwick crossing takes about 12 hours direct, 14 to 15 hours via Kirkwall, overnight, operated by NorthLink Ferries.
- It crosses the Northern North Sea, and passenger reports place the route in the high roughness band.
- What drives the rough days: 216 miles up the open northern North Sea.
- Conditions are reported roughest in January, February and December.
- The calmest months are usually June, July and August.
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Why the Aberdeen to Lerwick crossing gets rough
The northern North Sea is open to weather from every quarter that matters, and this route runs its length rather than nipping across. Winter gales are frequent at these latitudes, and the sea they build has hundreds of miles to work in. There is modest lee early on along the Aberdeenshire coast and at the Orkney call when the routing includes it; the long middle is simply open water. The ships are built for the run and sail through the great majority of what winter offers.
This route crosses the North Sea. For the full picture of that water, every crossing on it and what drives its reputation, see is the North Sea rough?
When it's worst, month by month
June and July nights are commonly smooth and barely dark at this latitude. October through February is the heavy season, when force 8 and above appears in the forecast regularly and light sleepers get a work-out; sailings still mostly run.
| Roughest water in Jan | Roughest water in Feb | Roughest water in Mar | Roughest water in Apr | Roughest water in May | Roughest water in Jun | Roughest water in Jul | Roughest water in Aug | Roughest water in Sep | Roughest water in Oct | Roughest water in Nov | Roughest water in Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Roughest | Roughest | Rough | Mixed | Mixed | Calm | Calm | Calm | Mixed | Rough | Rough | Roughest |
Typical seasonal pattern, not a forecast. Any month can deliver a calm crossing or a bad one. Check the marine forecast for your sailing date. Select a month to see every sea and ferry crossing ranked for it.
Where to be on board
Front to back
- Bow (front)Avoid
- MidshipBest
- Stern (aft)OK
The crossing: 12 to 15 hours overnight
Roughest stretch: The open sea for most of the night
Book a cabin midship and low; on 12 or more hours of open water, cabin position is the difference between sleeping and counting the rolls.
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What helps on this crossing
- Take a cabin, midship and low, rather than a sleeping pod on a winter sailing.
- Eat early after boarding; the open water arrives quickly and the night is long.
- Get horizontal at the first sign of queasiness; lying flat in the dark is the most tolerable state at sea.
- In winter, check the forecast at sea areas Cromarty, Forth and Fair Isle before travelling; a 24 hour delay sometimes crosses in half the sea.
- Northbound in summer, stay on deck for the late light; a visible horizon until bedtime settles the evening.
Buying a tablet in the UK before you sail? UK pharmacies sell Kwells, Stugeron and Avomine for travel sickness, and their labels differ on when to take them. Kwells vs Stugeron and Stugeron vs Avomine set out the label facts side by side. Which one suits you is a question for the pharmacist.
For the full toolkit see the seasickness guide, or what to do once it has already started. Choosing between a fast catamaran and a conventional ship elsewhere too? The physics is the same everywhere: see the catamaran guide. If the rocking follows you ashore afterwards, that is land sickness, which is normal, and it passes.
Frequently asked questions
How rough is the Aberdeen to Lerwick ferry in winter?
Rough crossings are a normal part of winter on this route: the northern North Sea produces frequent gales between October and February, and the ships sail through most of them. A bad night means steady rolling and pitching for hours rather than moments. In summer the same route regularly delivers calm, bright nights.
How long does Aberdeen to Lerwick take?
About 12 hours on direct overnight sailings and 14 to 15 hours when the ship calls at Kirkwall in Orkney. It is 216 miles, the longest domestic ferry route in the UK, operated by NorthLink's Hrossey and Hjaltland.
Does the Kirkwall stop make the crossing easier?
It breaks the night and adds some sheltered water around the islands, but it lengthens the trip by a couple of hours. Motion-sensitive travellers mostly do better choosing cabin position well and sleeping early than optimising for routing they cannot control anyway; the schedule assigns the call, not the passenger.
What about seasickness medication for an overnight North Sea crossing?
Ask a pharmacist or your doctor, and mention the format: a 12 hour overnight sailing where sleeping through is the plan. Motion sickness medicines are generally labelled for use before departure, and their drowsiness notes read differently when bed is the destination.
Other ferry routes
Sources & further reading
Your next question, probably
Where on the ship should you be?
Which cabins move least, and what to do if you already booked one
Not your question? What actually works at sea?Sick right now, mid-crossing?Still rocking after you land?
Conditions described here are typical patterns drawn from published marine and operator information as of September 2026, not a forecast: any month can deliver a calm crossing or a bad one, and schedules, vessels and operators change. Route, vessel and operator names are trademarks of their respective owners; Dizzout is not affiliated with or endorsed by them. Seasickness sensitivity varies from person to person; this page is informational and not medical advice.