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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Join Oceania Cruises's Oceania Sirena for a 22-night voyage on the European Explorer London to Istanbul route, setting out from Southampton, England on August 5, 2026. It's a classic Mediterranean cruise. Travelers sailing in August can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Southampton, England, Le Verdon, France, St Jean de Luz, France, with 18 more along the way. The forecasts below break the weather down port by port.
Southampton, England is a scheduled port of call on day 1 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 71°F.
Le Verdon, France is a scheduled port of call on day 2 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 83°F.
St Jean de Luz, France is a scheduled port of call on day 3 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 76°F.
Santander, Spain is a scheduled port of call on day 4 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 75°F.
Ferrol, Spain is a scheduled port of call on day 5 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 74°F.
Porto, Portugal is a scheduled port of call on day 6 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 78°F.
Lisbon, Portugal is a scheduled port of call on day 7 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 78°F.
Cadiz, Spain is a scheduled port of call on day 8 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 81°F.
Malaga, Spain is a scheduled port of call on day 9 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 80°F.
Almeria, Spain is a scheduled port of call on day 10 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 79°F.
Alicante, Spain is a scheduled port of call on day 11 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 81°F.
Barcelona, Spain is a scheduled port of call on day 12 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 79°F.
Palermo, Sicily is a scheduled port of call on day 13 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 92°F.
Siracusa, Sicily is a scheduled port of call on day 14 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 82°F.
Argostoli, Greece is a scheduled port of call on day 15 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 83°F.
Gythion, Greece is a scheduled port of call on day 16 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 84°F.
Paros, Greece is a scheduled port of call on day 17 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 73°F.
Piraeus, Greece is a scheduled port of call on day 18 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 93°F.
Kusadasi, Turkey is a scheduled port of call on day 19 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 94°F.
Bozcaada is a scheduled port of call on day 20 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: clear with highs near 79°F.
Istanbul, Turkey is a scheduled port of call on day 21 of the 22-night European Explorer London to Istanbul cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 82°F.
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