Istanbul vs Cancun

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Istanbul edges ahead as the better destination in May. Istanbul offers 12 hours of daily sunshine with only 6 rain days, while Cancun sees 12 sunshine hours and 14 rain days.

Istanbul sits in the comfortable travel range at 20°C. Cancun runs hot at 29°C.

For travelers who prioritize dry weather, Istanbul is the stronger choice in May.

Istanbul reaches an average high of 20°C (68°F) and drops to 13°C (55°F) at night during May. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

Cancun averages 29°C (84°F) for the high and 25°C (77°F) for the low, with a daily range of 4°C. There is a notable 9°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 May.

Istanbul receives approximately 37 mm of rainfall across 6 rain days during May. Rain is occasional, so a light rain jacket should suffice.

Cancun sees 91 mm over 14 rain days. That makes Istanbul the drier option by 8 rain days and 54 mm of total precipitation.

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