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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Join Holland America Line (HAL)'s Oosterdam for a 21-night voyage on the Ancient Seas: Adriatic, Greek Isles & Istanbul route, setting out from Trieste, Italy on September 21, 2027. It's a classic Mediterranean cruise. Travelers sailing in September can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Trieste, Italy, Split, Croatia, Dubrovnik, Croatia, with 14 more along the way. The forecasts below break the weather down port by port.
Trieste, Italy is a scheduled port of call on day 1 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 72°F.
Split, Croatia is a scheduled port of call on day 2 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 74°F.
Dubrovnik, Croatia is a scheduled port of call on day 3 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 75°F.
Day 4 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Ancient Seas: Adriatic, Greek Isles & Istanbul itinerary.
Santorini, Greece is a scheduled port of call on day 5 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: clear with highs near 74°F.
Mykonos, Greece is a scheduled port of call on day 6 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: clear with highs near 72°F.
Kos, Greece is a scheduled port of call on day 7 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: clear with highs near 75°F.
Kusadasi, Turkey is a scheduled port of call on day 8 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: clear with highs near 83°F.
Istanbul, Turkey is a scheduled port of call on day 9 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 72°F.
Istanbul, Turkey is a scheduled port of call on day 10 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 72°F.
Day 11 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Ancient Seas: Adriatic, Greek Isles & Istanbul itinerary.
Piraeus, Greece is a scheduled port of call on day 12 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 82°F.
Mykonos, Greece is a scheduled port of call on day 13 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 71°F.
Day 14 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Ancient Seas: Adriatic, Greek Isles & Istanbul itinerary.
Istanbul, Turkey is a scheduled port of call on day 15 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 70°F.
Istanbul, Turkey is a scheduled port of call on day 16 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam.
Day 17 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Ancient Seas: Adriatic, Greek Isles & Istanbul itinerary.
Santorini, Greece is a scheduled port of call on day 18 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam.
Chania, Crete is a scheduled port of call on day 19 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam.
Day 20 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Ancient Seas: Adriatic, Greek Isles & Istanbul itinerary.
Messina, Sicily is a scheduled port of call on day 21 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam.
Civitavecchia, Italy is a scheduled port of call on day 22 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam.
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