Weather Comparison
Bali vs Istanbul
Side-by-side weather comparison for September
September Weather: Bali vs Istanbul
| Metric | Bali | Istanbul | Better |
|---|---|---|---|
| Average HighHigher is warmer | 30°C (86°F)▲ | 22°C (72°F) | Bali |
| Average LowHigher is milder | 23°C (73°F)▲ | 13°C (55°F) | Bali |
| Rain DaysFewer is drier | 12 days | 4 days▲ | Istanbul |
| PrecipitationLess is drier | 140 mm | 45 mm▲ | Istanbul |
| Sunshine HoursMore is sunnier | 4h/day | 4h/day | Tie |
| HumidityLower is more comfortable | 82% | 65%▲ | Istanbul |
| UV IndexLower is safer | 6 | 6 | Tie |
| Wind SpeedCalmer is better | 15 km/h | 15 km/h | Tie |
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 4 hours of daily sunshine with only 4 rain days, while Bali sees 4 sunshine hours and 12 rain days.
Bali can feel quite hot at 30°C, so plan for heat. Istanbul is also comfortable at 22°C.
For travelers who prioritize dry weather, Istanbul is the stronger choice in September.
Temperature Comparison in September
Bali reaches an average high of 30°C (86°F) and drops to 23°C (73°F) at night during September. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.
Istanbul averages 22°C (72°F) for the high and 13°C (55°F) for the low, with a daily range of 9°C. There is a notable 8°C gap between the two cities, so expect a very different feel.
Bali is in the Southern Hemisphere while Istanbul is in the Northern Hemisphere. This means they experience opposite seasons, which explains any large temperature difference.
Rainfall Comparison in September
Bali receives approximately 140 mm of rainfall across 12 rain days during September. You can expect rain roughly every other day.
Istanbul sees 45 mm over 4 rain days. That makes Istanbul the drier option by 8 rain days and 95 mm of total precipitation.
Humidity also differs: Bali averages 82% while Istanbul sits at 65%. Bali will feel muggier, especially at higher temperatures.
What to Pack: Bali vs Istanbul
Packing for Bali in September
Highs of 30°C, lows of 23°C, 12 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 22°C, lows of 13°C, 4 rain days
- ✓light layers
- ✓a light jacket for evenings
- ✓sunscreen
Year-Round Comparison: Bali 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 | Bali | Istanbul | ||
|---|---|---|---|---|
| High | Rain | High | Rain | |
| Jan | 32°C | 17d | 16°C | 6d |
| Feb | 31°C | 15d | 19°C | 5d |
| Mar | 30°C | 12d | 22°C | 4d |
| Apr | 29°C | 9d | 26°C | 2d |
| May | 28°C | 7d | 28°C | 1d |
| Jun | 28°C | 6d | 29°C | 1d |
| Jul | 28°C | 7d | 28°C | 1d |
| Aug | 29°C | 9d | 26°C | 2d |
| Sep | 30°C | 12d | 22°C | 4d |
| Oct | 31°C | 15d | 19°C | 5d |
| Nov | 32°C | 17d | 16°C | 6d |
| Dec | 32°C | 18d | 15°C | 7d |
Bali Weather in September
Full forecast, packing tips, and activities
Istanbul Weather in September
Full forecast, packing tips, and activities