Istanbul vs Bali

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 Bali sees 12 sunshine hours and 11 rain days.

Istanbul sits in the comfortable travel range at 24°C. Bali is also comfortable at 27°C.

For travelers who prioritize dry weather, Istanbul is the stronger choice in September. Bali receives 1 more hour of sunshine per day, which matters for sightseeing and outdoor activities.

Istanbul reaches an average high of 24°C (75°F) and drops to 18°C (64°F) at night during September. The daily temperature range is 6°C, meaning relatively stable temperatures from day to night.

Bali averages 27°C (81°F) for the high and 23°C (73°F) for the low, with a daily range of 4°C. The 3°C difference is noticeable but not dramatic.

Istanbul is in the Northern Hemisphere while Bali is in the Southern Hemisphere. This means they experience opposite seasons, which explains any large temperature difference.

Istanbul receives approximately 46 mm of rainfall across 7 rain days during September. Rain is occasional, so a light rain jacket should suffice.

Bali sees 53 mm over 11 rain days. That makes Istanbul the drier option by 4 rain days and 7 mm of total precipitation.

Humidity also differs: Istanbul averages 65% while Bali sits at 82%. Bali will feel muggier, especially at higher temperatures.