Tokyo Weather in September

September feels sticky

Tokyo is still warm in September, but the edge of summer hasn't quite gone. Highs reach 28°C, and humidity makes walks through Asakusa or Shibuya feel sweaty. Rain falls on many days, sometimes heavily, and skies can stay grey. Typhoons can also disrupt trains and flights.

The weather suits indoor stops at the Tokyo National Museum or a long lunch in Tsukiji Outer Market. Keep outdoor plans flexible: a wet afternoon can make temple visits and shopping arcades more comfortable than a long walk. Don't count on a clear day for Mount Fuji views.

Festivals and holidays

The September Grand Sumo Tournament brings a lively crowd to Ryogoku Kokugikan. It's a good month to see sumo, but tickets can be harder to find during tournament days.

Respect for the Aged Day and the Autumnal Equinox are September public holidays. Some years, their dates create Silver Week, a longer holiday stretch when domestic travel picks up. If you hate crowds, avoid travelling between cities during that stretch; Tokyo's main sights can feel busier too.

Quieter than peak season

September is generally less crowded than cherry blossom season in spring or autumn foliage season in November. Summer school holidays are ending, so Tokyo can feel calmer, though Silver Week is an exception. Hotel prices may be gentler than in those peak periods, but can rise around the holiday stretch.

For a rainy day, use the underground passages around Tokyo Station to move between shops and food spots without getting soaked. If the weather clears, stroll the Imperial Palace's East Gardens instead; they're close by. Check the gardens' opening days before you go, as they close on certain weekdays.