Weather Comparison
Cancun vs Istanbul
Side-by-side weather comparison for September
September Weather: Cancun vs Istanbul
| Metric | Cancun | Istanbul | Better |
|---|---|---|---|
| Average HighHigher is warmer | 29°C (84°F)▲ | 24°C (75°F) | Cancun |
| Average LowHigher is milder | 26°C (79°F)▲ | 18°C (64°F) | Cancun |
| Rain DaysFewer is drier | 24 days | 7 days▲ | Istanbul |
| PrecipitationLess is drier | 205 mm | 46 mm▲ | Istanbul |
| Sunshine HoursMore is sunnier | 10h/day | 11h/day▲ | Istanbul |
| HumidityLower is more comfortable | 78% | 65%▲ | Istanbul |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 16 km/h▲ | 21 km/h | Cancun |
Which City is Better in September?
Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Istanbul edges ahead as the better destination in September. Istanbul offers 11 hours of daily sunshine with only 7 rain days, while Cancun sees 10 sunshine hours and 24 rain days.
Cancun can feel quite hot at 29°C, so plan for heat. Istanbul is also comfortable at 24°C.
For travelers who prioritize dry weather, Istanbul is the stronger choice in September. Istanbul receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.
Temperature Comparison in September
Cancun reaches an average high of 29°C (84°F) and drops to 26°C (79°F) at night during September. The daily temperature range is 3°C, meaning relatively stable temperatures from day to night.
Istanbul averages 24°C (75°F) for the high and 18°C (64°F) for the low, with a daily range of 6°C. There is a notable 5°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 September.
Rainfall Comparison in September
Cancun receives approximately 205 mm of rainfall across 24 rain days during September. Rain is frequent, so waterproof gear is essential.
Istanbul sees 46 mm over 7 rain days. That makes Istanbul the drier option by 17 rain days and 159 mm of total precipitation.
Humidity also differs: Cancun averages 78% while Istanbul sits at 65%. Cancun will feel muggier, especially at higher temperatures.
What to Pack: Cancun vs Istanbul
Packing for Cancun in September
Highs of 29°C, lows of 26°C, 24 rain days
- ✓lightweight breathable clothing
- ✓sunscreen SPF 50+
- ✓sunglasses
- ✓a wide-brimmed hat
- ✓waterproof jacket
- ✓compact umbrella
- ✓waterproof shoes
- ✓moisture-wicking fabrics
Packing for Istanbul in September
Highs of 24°C, lows of 18°C, 7 rain days
- ✓light layers
- ✓a light jacket for evenings
- ✓sunscreen
- ✓a packable rain jacket
- ✓an umbrella
Year-Round Comparison: Cancun vs Istanbul
The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.September 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 September
Full forecast, packing tips, and activities
Istanbul Weather in September
Full forecast, packing tips, and activities