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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…The Norwegian Sun sails a 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden itinerary with Norwegian Cruise Line (NCL), departing Copenhagen, Denmark on September 5, 2026. It's a classic Northern Europe cruise. Travelers sailing in September can generally expect cold, short days. Ports of call include Copenhagen, Denmark, Oslo, Norway, Warnemunde, Germany, with 6 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.
Copenhagen, Denmark is a scheduled port of call on day 1 of the 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 66°F.
Oslo, Norway is a scheduled port of call on day 2 of the 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 66°F.
Warnemunde, Germany is a scheduled port of call on day 3 of the 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 68°F.
Gdynia, Poland is a scheduled port of call on day 4 of the 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 68°F.
Visby, Sweden is a scheduled port of call on day 5 of the 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 64°F.
Riga, Latvia is a scheduled port of call on day 6 of the 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 66°F.
Nynashamn, Sweden is a scheduled port of call on day 7 of the 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 60°F.
Tallinn, Estonia is a scheduled port of call on day 8 of the 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 62°F.
Helsinki, Finland is a scheduled port of call on day 9 of the 9-night Baltic from Copenhagen to Helsinki: Germany, Norway & Sweden cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 59°F.
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Budget PickExclusive Guided Boat Tour in Copenhagen
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Most PopularGuided Sightseeing Cruise on Oslofjord by Premium Silent Boat
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Most PopularLatvian food tasting tour at Riga Central market (20 tastes)
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Most PopularTallinn Highlights Shore Excursion With Port Return Transfer
From $69
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Budget PickSoviet Walking Tour of Tallinn: Explore the City's Hidden History
From $35
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Most PopularHelsinki and Suomenlinna Day Tour with Ferry Ride
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Budget PickA Finntastic Walking Tour in Helsinki
From $23
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Copenhagen, Denmark
Budget PickExclusive Guided Boat Tour in Copenhagen
From $42
Book NowOslo, Norway
Most PopularGuided Sightseeing Cruise on Oslofjord by Premium Silent Boat
From $73
Book NowRiga, Latvia
Most PopularLatvian food tasting tour at Riga Central market (20 tastes)
From $41
Book NowBudget PickRiga Sightseeing Tour by Canal Boat with Audioguide
From $15
Book NowTallinn, Estonia
Most PopularTallinn Highlights Shore Excursion With Port Return Transfer
From $69
Book NowBudget PickSoviet Walking Tour of Tallinn: Explore the City's Hidden History
From $35
Book NowHelsinki, Finland
Most PopularHelsinki and Suomenlinna Day Tour with Ferry Ride
From $127
Book NowBudget PickA Finntastic Walking Tour in Helsinki
From $23
Book NowPowered by Viator/Tripadvisor. Booking through our links may earn us a commission keeping this site free at no cost to you.
