Tokyo Weather in September

What September feels like in Tokyo

For Tokyo, September is early autumn on the calendar. Afternoons are warm and pleasant, good for long days out. Little changes after sunset — nights stay warm, only slightly below the daytime level. High humidity makes the heat feel heavier and sticky, especially on still afternoons.

Rain in Tokyo in September

Rain is part of normal life this month, falling on about every other day. When rain comes it is heavy, about 14 mm (0.6 in) per wet day, often in short, strong bursts. That is close to Tokyo's typical rain per wet day for the whole year (about 11.4 mm). It is among the three wettest months of the year.

Daylight and sunshine in September

In mid-September, sunrise is at about 5:23 am and sunset at about 5:50 pm (local time) — 12 h 27 min of daylight. Days are getting shorter: 1 h 6 min less daylight than in mid-August. Measured sunshine covers about 64% of the daylight — there are plenty of bright spells.

How September compares to the rest of the year

September is the 3rd warmest month of the year in Tokyo. Compared with August, afternoons are 3.9°C (7°F) cooler, with 78 mm more rain. October is cooler again. By October, typical highs are 21.2°C (70.2°F).

Who September suits

• Sightseeing: a good fit — the weather rarely gets in the way of a city walk.
• Parks & outdoor: less ideal — afternoons are too warm to linger outside.
• Beach: less ideal — too many rainy days.

Tips for visiting Tokyo in September

Quick questions