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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 Greece & Istanbul Collectors' Voyage route, setting out from Piraeus, Greece on October 3, 2026. It's a classic Mediterranean cruise. Travelers sailing in October can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Piraeus, Greece, Nafplion, Greece, Istanbul, Turkey, with 13 more along the way. The forecasts below break the weather down port by port.
Piraeus, Greece is a scheduled port of call on day 1 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 82°F.
Nafplion, Greece is a scheduled port of call on day 2 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 72°F.
Day 3 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Greece & Istanbul Collectors' Voyage itinerary.
Istanbul, Turkey is a scheduled port of call on day 4 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 70°F.
Istanbul, Turkey is a scheduled port of call on day 5 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 70°F.
Day 6 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Greece & Istanbul Collectors' Voyage itinerary.
Kusadasi, Turkey is a scheduled port of call on day 7 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 79°F.
Santorini, Greece is a scheduled port of call on day 8 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 71°F.
Rhodes, Greece is a scheduled port of call on day 9 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 75°F.
Day 10 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Greece & Istanbul Collectors' Voyage itinerary.
Chania, Crete is a scheduled port of call on day 11 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 73°F.
Piraeus, Greece is a scheduled port of call on day 12 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 79°F.
Mykonos, Greece is a scheduled port of call on day 13 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 69°F.
Day 14 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Greece & Istanbul Collectors' Voyage itinerary.
Istanbul, Turkey is a scheduled port of call on day 15 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam. Expected weather: partially cloudy with highs near 68°F.
Istanbul, Turkey is a scheduled port of call on day 16 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Day 17 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Greece & Istanbul Collectors' Voyage itinerary.
Kusadasi, Turkey is a scheduled port of call on day 18 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Kos, Greece is a scheduled port of call on day 19 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Rhodes, Greece is a scheduled port of call on day 20 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
Day 21 of 22 is a day at sea aboard Oosterdam, cruising between ports on the Greece & Istanbul Collectors' Voyage itinerary.
Piraeus, Greece is a scheduled port of call on day 22 of the 21-night Greece & Istanbul Collectors' Voyage cruise on Oosterdam.
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