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 4 hours of daily sunshine with only 4 rain days, while Bali sees 12 sunshine hours and 11 rain days.

Istanbul sits in the comfortable travel range at 22°C. Bali is also comfortable at 27°C.

For travelers who prioritize dry weather, Istanbul is the stronger choice in September. Bali receives 8 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Istanbul reaches an average high of 22°C (72°F) and drops to 13°C (55°F) at night during September. The daily temperature range is 9°C, meaning moderate variation throughout the day.

Bali averages 27°C (81°F) for the high and 23°C (73°F) for the low, with a daily range of 4°C. There is a notable 5°C gap between the two cities, so expect a very different feel.

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 45 mm of rainfall across 4 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 7 rain days and 8 mm of total precipitation.

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