Istanbul vs Cancun

Istanbul and Cancun are closely matched in December. Neither city has a clear advantage across all metrics. Your decision should come down to personal preference, cultural interests, and travel logistics rather than weather alone.

Istanbul sits in the comfortable travel range at 15°C. Cancun is also comfortable at 28°C.

For travelers who prioritize dry weather, Cancun is the stronger choice in December.

Istanbul reaches an average high of 15°C (59°F) and drops to 6°C (43°F) at night during December. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Cancun averages 28°C (82°F) for the high and 21°C (70°F) for the low, with a daily range of 7°C. There is a notable 13°C gap between the two cities, so expect a very different feel.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in December.

Istanbul receives approximately 80 mm of rainfall across 7 rain days during December. Rain is occasional, so a light rain jacket should suffice.

Cancun sees 70 mm over 6 rain days. That makes Cancun the drier option by 1 rain day and 10 mm of total precipitation.

Humidity also differs: Istanbul averages 65% while Cancun sits at 78%. Cancun will feel muggier, especially at higher temperatures.