Weather Comparison
Side-by-side weather comparison for May
| Metric | Cancun | Istanbul | Better |
|---|---|---|---|
| Average HighHigher is warmer | 29°C (84°F)▲ | 20°C (68°F) | Cancun |
| Average LowHigher is milder | 25°C (77°F)▲ | 13°C (55°F) | Cancun |
| Rain DaysFewer is drier | 14 days | 6 days▲ | Istanbul |
| PrecipitationLess is drier | 91 mm | 37 mm▲ | Istanbul |
| Sunshine HoursMore is sunnier | 12h/day | 12h/day | Tie |
| HumidityLower is more comfortable | 78% | 65%▲ | Istanbul |
| UV IndexLower is safer | 9 | 9 | Tie |
| Wind SpeedCalmer is better | 19 km/h | 18 km/h▲ | Istanbul |
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.
Cancun can feel quite hot at 29°C, so plan for heat. Istanbul is also comfortable at 20°C.
For travelers who prioritize dry weather, Istanbul is the stronger choice in May.
Cancun reaches an average high of 29°C (84°F) and drops to 25°C (77°F) at night during May. The daily temperature range is 4°C, meaning relatively stable temperatures from day to night.
Istanbul averages 20°C (68°F) for the high and 13°C (55°F) for the low, with a daily range of 7°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.
Cancun receives approximately 91 mm of rainfall across 14 rain days during May. You can expect rain roughly every other day.
Istanbul sees 37 mm over 6 rain days. That makes Istanbul the drier option by 8 rain days and 54 mm of total precipitation.
Humidity also differs: Cancun averages 78% while Istanbul sits at 65%. Cancun will feel muggier, especially at higher temperatures.
Highs of 29°C, lows of 25°C, 14 rain days
Highs of 20°C, lows of 13°C, 6 rain days
The table below shows average high temperatures and rain days for every month. May is highlighted for quick reference.
| Month | Cancun | Istanbul | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 25°C | 11d | 8°C | 13d |
| Feb | 26°C | 8d | 9°C | 12d |
| Mar | 27°C | 7d | 11°C | 11d |
| Apr | 28°C | 7d | 15°C | 8d |
| May | 29°C | 14d | 20°C | 6d |
| Jun | 29°C | 19d | 25°C | 6d |
| Jul | 30°C | 18d | 28°C | 4d |
| Aug | 30°C | 21d | 28°C | 3d |
| Sep | 29°C | 24d | 24°C | 7d |
| Oct | 28°C | 21d | 19°C | 9d |
| Nov | 27°C | 12d | 14°C | 10d |
| Dec | 26°C | 11d | 10°C | 13d |
Cancun Weather in May
Full forecast, packing tips, and activities
Istanbul Weather in May
Full forecast, packing tips, and activities