Booking choice: The wooden sailing ship. Check dates Tour details
The Oslofjord has a real winter: short days, frost and, in hard years, ice in the inner bays. It also has light, warm summers with evenings that barely end. The cruises run through both, but what sails, and what it feels like on deck, changes a lot.
Climate figures below are Oslo's 1991 to 2020 normals from MET Norway's Seklima service. Sailing seasons come from the operators, checked in October 2026.
The quick answer
June is our pick: long days, mild air and the full summer line-up, before the July crowds. May is the sunniest month on average. August is Oslo's wettest. In winter, the sailing ship, the Opera House cruise, the silent boat and the dinner cruise keep running, and a fish soup cruise sails on Saturdays. Pick a morning departure in summer, or the 14:00 in midwinter for the sunset.

What is the best month for an Oslofjord cruise?
June. May and early September come close. July is warmest but busiest; August is warm and the wettest month.
Here is the year at a glance. Where we give temperatures they are average daily highs for Oslo.
| Months | Weather | What sails | Our take |
|---|---|---|---|
| January, February | Highs around 0 to 1 °C | All-year cruises, fish soup Saturdays, B1 | Crisp, quiet, short days; dress warmly |
| March, April | March is the driest month | All-year cruises; Bygdøy ferry from March or April | Bright days, cold wind on deck |
| May | High 16.7 °C, sunniest month | Summer boats begin, Ruter summer service from mid-May | Fresh green islands, fewer people |
| June | High 20.4 °C, longest days | Everything, incl. Mini Cruise and evening cruises | Our pick |
| July | High 22.7 °C, warmest | Everything; B1X shuttle to Hovedøya | Book ahead; busiest month |
| August | High 21.3 °C, wettest (about 103 mm) | Everything | Warm, but pack a rain jacket |
| September | High 16.4 °C | Summer boats wind down | Calm, golden light |
| October to December | October is the second-wettest | All-year cruises; B1 winter timetable | Dark early; no Opera House cruise on 24 December |
Months without figures here have no number in our source set; check Seklima or yr.no for your dates.
All year on a wooden sailing ship: heated deck and blankets in winter, open sky in summer.
Check dates for the wooden sailing shipWhat is the rainiest month in Norway?
It depends where. In Oslo it is August. In Bergen, on the west coast, it is December, and Bergen gets three times Oslo's rain.
Norway's weather splits along the mountains. Oslo, in the east, is relatively dry; the west coast catches the Atlantic weather.
| Oslo (Blindern) | Bergen (Florida) | |
|---|---|---|
| Wettest month | August, about 103 mm | December, about 290 mm |
| Driest month | March, about 41 mm | May, about 109 mm |
| Year total | About 835 mm | About 2,496 mm |
Normals for 1991 to 2020, MET Norway data. For an Oslo cruise, rain is rarely a dealbreaker: every boat has an indoor saloon with big windows. For a trip west to the fjords, May is the driest month in Bergen, which is one more reason to go in late spring. See fjords near Oslo for the trip itself.
How much daylight is there on the Oslofjord?
Almost 19 hours around midsummer, under 6 around the winter solstice.
Around 21 June, the sun rises at about 03:54 and sets at about 22:43. Around 21 December, it rises at about 09:18 and sets at about 15:12. That swing changes everything about timing a cruise.
- Summer: every departure sails in daylight, and evening trips catch a slow golden light. The dinner cruise leaves at 18:00, hours before sunset.
- Winter: a 14:00 departure on the Opera House cruise returns just after sunset. Later sailings are in the dark, with the city lit up, which is lovely in its own way.

Which cruises sail in winter?
The wooden sailing ship, the Opera House cruise, the silent boat and the dinner cruise all run all year. The fish soup cruise is winter only.
Summer-only options include the Mini Cruise, the evening shrimp cruise, the music cruises, kayak tours, the Langøyene boat and the Bygdøy ferry. What stays:
| Cruise | Winter | Warmth on board |
|---|---|---|
| Wooden sailing ship | All year | Heated main deck, heat lamps, blankets |
| Fish soup cruise | Saturdays at 16:00 in winter | Fish soup, heat lamps, blankets |
| Opera House cruise | Daily, 10:00 to 16:00; none on 24 December | Panoramic indoor lounge |
| Silent boat | Daily all year | Two warm saloons; hot drink included October to March |
| Dinner cruise | 18:00, Thursday to Monday | Temperature-controlled saloons |
| Ruter B1 island loop | All year, winter timetable | Indoor seating |
This season's details are in the winter 2026-27 post.

A dark-season harbour trip on a wooden ship: hot fish soup, fresh bread and the city lights from under the heat lamps.
Explore the winter fish soup cruise Tour detailsDoes the Oslofjord freeze in winter?
Parts of the inner fjord can freeze in cold winters, but the main harbour stays open for the year-round boats.
In late January 2021, crowds walked on the ice at Sørenga, Kadettangen and Sandvika, people fell through, and police told everyone to stay off the inner fjord ice. Never walk on fjord ice in Oslo.
For cruises, the year-round ferries and sightseeing boats show that the central harbour stays navigable. The wooden sailing ship listing says that if the fjord freezes, the trip is cancelled with a full refund. All the cruises on this site have free cancellation up to 24 hours before, which helps if a cold snap is forecast.

What is the best time of day for a cruise?
Morning for calm water and fewer people; late afternoon or evening for the light. Avoid midday in July if you can.
The Opera House cruise sails at 10:00, 12:00, 14:00 and 16:00. In summer, take the 10:00: the light is clean and the boats are quieter. In midwinter, take the 14:00 for the sunset. Skip the noon slot in July if you can; mornings are calmer.
For evenings, Båtservice's shrimp cruise leaves at 19:00 in summer and 18:00 in autumn, and the dinner cruise at 18:00 Thursday to Monday. On a June evening, both sail in full daylight.

Three courses and a live musician at 18:00, with the sun low over the islands in summer and the city lights in winter.
Explore the dinner and live music cruise Tour detailsWhat is the best month to visit the western fjords?
May to September. May is the driest month in Bergen; June to August have the longest days and the full timetable.
For Flåm and the Nærøyfjord, the trains and boats run all year, and Norway in a Nutshell is sold in winter too. But summer brings the longest days and the most connections, and the Geirangerfjord add-on runs only from June to September. July is the busiest month at Flåm. May and September are the sweet spots: green or golden, with fewer people.
What should you wear on the fjord?
A warm layer in every season, a rain jacket from August to December, and a hat and gloves from November to March.
- Summer: it is cooler on the water than on the streets. Bring a jumper for the outside deck, and sunglasses for the glare.
- Spring and autumn: wind and showers. A waterproof shell and a warm mid-layer.
- Winter: January highs are around freezing. Thermal layers, a hat, gloves and good shoes. The boats provide blankets and heat lamps, but your feet will feel the deck.
Sea water in July averages around 17 °C, if you plan to swim from an island. The island ferry guide has the beaches.
Blankets, heat lamps and a heated deck: the wooden sailing ship is built for a cold day on the fjord.
Check dates for the wooden sailing shipFrequently asked questions
What is the best month for an Oslofjord cruise?
June: long days, mild weather and every boat running, before the July peak. May and early September are close behind.
What is the rainiest month in Oslo?
August, with about 103 mm on average. October is second. In Bergen the wettest month is December.
Can you do an Oslo fjord cruise in winter?
Yes. The wooden sailing ship (heated deck), the Opera House cruise, the silent boat and the dinner cruise all sail all year, and a fish soup cruise runs on winter Saturdays.
Is the Oslofjord cold in summer?
The air on deck is cooler than in town, so bring a layer. In July, highs average about 23 °C on land and the sea is around 17 °C.
Ready to book
Choose your cruise
Free cancellation up to 24 hours before on every option, and live availability for your date on the booking page.

Two Hours on a Wooden Sailing Ship
- Two-hour round trip from City Hall Pier 3
- English commentary plus an app in 13 languages
- Heated main deck, blankets, toilet and bar

Winter Skyline Cruise with Fish Soup
A dark-season harbour trip with hot fish soup under the heat lamps

Three-Course Dinner & Live Music Cruise
An evening on the water with a three-course seafood dinner and a musician



