
Plan Your Cruise With Free Weather Forecasts
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Loading Travel Forecast…Join HAL Cruises'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 13 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 73°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.
Santorini, Greece is a scheduled port of call on day 4 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 5 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: clear with highs near 73°F.
Kos, 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 75°F.
Kusadasi, Turkey 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 83°F.
Istanbul, 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: partially cloudy with highs near 72°F.
Piraeus, Greece 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 82°F.
Mykonos, Greece 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 71°F.
Istanbul, Turkey is a scheduled port of call on day 11 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 71°F.
Santorini, 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 72°F.
Chania, Crete 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 74°F.
Rhodes, Greece is a scheduled port of call on day 14 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 75°F.
Messina, Sicily 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 74°F.
Civitavecchia, Italy is a scheduled port of call on day 16 of the 21-night Ancient Seas: Adriatic, Greek Isles & Istanbul cruise on Oosterdam. Expected weather: partially cloudy with highs near 69°F.
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