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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Join Norwegian Cruise Line (NCL)'s Norwegian Sun for a 10-night voyage on the Baltic from Helsinki to London: Germany, Sweden & Poland route, setting out from Helsinki, Finland on October 2, 2026. It's a classic Northern Europe cruise. Travelers sailing in October can generally expect cold, short days. Ports of call include Helsinki, Finland, Tallinn, Estonia, Nynashamn, Sweden, with 6 more along the way. The forecasts below break the weather down port by port.
Helsinki, Finland is a scheduled port of call on day 1 of the 10-night Baltic from Helsinki to London: Germany, Sweden & Poland cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 52°F.
Tallinn, Estonia is a scheduled port of call on day 2 of the 10-night Baltic from Helsinki to London: Germany, Sweden & Poland cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 53°F.
Nynashamn, Sweden is a scheduled port of call on day 3 of the 10-night Baltic from Helsinki to London: Germany, Sweden & Poland cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 54°F.
Riga, Latvia is a scheduled port of call on day 4 of the 10-night Baltic from Helsinki to London: Germany, Sweden & Poland cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 55°F.
Klaipeda, Lithuania is a scheduled port of call on day 5 of the 10-night Baltic from Helsinki to London: Germany, Sweden & Poland cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 56°F.
Gdynia, Poland is a scheduled port of call on day 6 of the 10-night Baltic from Helsinki to London: Germany, Sweden & Poland cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 58°F.
Warnemunde, Germany is a scheduled port of call on day 7 of the 10-night Baltic from Helsinki to London: Germany, Sweden & Poland cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 58°F.
Copenhagen, Denmark is a scheduled port of call on day 8 of the 10-night Baltic from Helsinki to London: Germany, Sweden & Poland cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 55°F.
Day 9 of 11 is a day at sea aboard Norwegian Sun, cruising between ports on the Baltic from Helsinki to London: Germany, Sweden & Poland itinerary.
Day 10 of 11 is a day at sea aboard Norwegian Sun, cruising between ports on the Baltic from Helsinki to London: Germany, Sweden & Poland itinerary.
Southampton, England is a scheduled port of call on day 11 of the 10-night Baltic from Helsinki to London: Germany, Sweden & Poland cruise on Norwegian Sun. Expected weather: partially cloudy with highs near 61°F.
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