Osaka vs Tokyo

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Osaka edges ahead as the better destination in September. Osaka offers 9 hours of daily sunshine with only 12 rain days, while Tokyo sees 8 sunshine hours and 14 rain days.

Osaka sits in the comfortable travel range at 28°C. Tokyo is also comfortable at 26°C.

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

Osaka reaches an average high of 28°C (82°F) and drops to 21°C (70°F) at night during September. The daily temperature range is 7°C, meaning relatively stable temperatures from day to night.

Tokyo averages 26°C (79°F) for the high and 20°C (68°F) for the low, with a daily range of 6°C. The 2°C difference is noticeable but not dramatic.

Both cities are in the Northern Hemisphere, so they share the same seasonal pattern in September.

Osaka receives approximately 168 mm of rainfall across 12 rain days during September. You can expect rain roughly every other day.

Tokyo sees 189 mm over 14 rain days. That makes Osaka the drier option by 2 rain days and 21 mm of total precipitation.

Humidity also differs: Osaka averages 70% while Tokyo sits at 65%. Osaka will feel muggier, especially at higher temperatures.