01Weather
Tokyo weather in September
Afternoons in September average 28.3 °C (83 °F) and nights cool to 21.7 °C (71 °F). The month brings about 244 mm (9.6 in) of rain spread over roughly 12 days. Compared with August it is 4.0 °C cooler; October is 6.2 °C cooler again.
What the averages hide
| In a typical September | Value | What it means |
|---|---|---|
| Warm afternoons (90th percentile) | 33 °C / 91 °F | one day in ten is at least this warm |
| Cool afternoons (10th percentile) | 24 °C / 74 °F | one day in ten stays below this |
| Cold nights (10th percentile) | 18 °C / 64 °F | one night in ten is colder than this |
| Days above 30 °C (86 °F) | 10.8 | per month, average 2016–2025 |
| Nights at or below 0 °C (32 °F) | 0.0 | frost mornings per month |
| Chance of rain on any given day | 39 % | at least 1 mm |
| Hottest / coldest September day 2016–2025 | 36.2 °C / 14.1 °C | extremes in the ten-year record |
02Daylight
Sunrise, sunset and the length of the day
| Date | Sunrise | Sunset | Daylight |
|---|---|---|---|
| 1 September | 05:13 | 18:08 | 12.9 h |
| 15 September | 05:23 | 17:48 | 12.4 h |
| 30 September | 05:35 | 17:26 | 11.9 h |
Daylight shrinks by about 60 minutes over the month. Times are local (Asia/Tokyo).
03Crowds
How busy Tokyo is in September
moderate The main sights are moderate in September. What drives it:
- typhoon season
- Silver Week holidays
- residual heat
04Public holidays
Public holidays in September 2027
| Date | Holiday |
|---|---|
| 20 Sep 2027 | Respect for the Aged Day |
| 23 Sep 2027 | Autumnal Equinox Day |
On public holidays many shops close and museums run on Sunday hours; check opening times for the day before and after as well.
05Events
What's on in Tokyo in September
Every year in September
| Event | When | Type |
|---|---|---|
| Tokyo Game Show | September, Makuhari Messe | fair |
07Packing
What to pack for Tokyo in September
- light, breathable clothing
- sun hat and sunscreen
- refillable water bottle
- a compact umbrella or hooded rain jacket, rain falls on roughly one day in three
- something for heat: 11 days a month pass 30 °C on average
08Editor's notes
What the numbers don't tell you
September stays hot and sticky in the first half, with afternoons near 30 °C, then eases toward 25 °C by the end, but it is the peak of typhoon season and a storm can shut trains and flights for a day; allow flexibility in flight dates. Respect for the Aged Day on the third Monday and Autumnal Equinox Day around 23 September are public holidays, forming a Silver Week when they align. Hotel prices are lower than spring and autumn.
The Tokyo Game Show fills Makuhari Messe in the second half, and the September Grand Sumo tournament runs for fifteen days at Ryogoku. The spider lilies bloom at Kinchakuda in Saitama in the last ten days. Rain falls on about twelve days, often heavy. Evenings become pleasant for walks along the Sumida River. The best weather of the year arrives in October.
09Compare
Tokyo month by month
| Month | High | Low | Rain days | Sun h | Crowds | Verdict |
|---|---|---|---|---|---|---|
| January | 10 °C | 2 °C | 4 | – | moderate | Good |
| February | 12 °C | 3 °C | 7 | – | quiet | Good |
| March | 16 °C | 7 °C | 9 | – | busy | Mixed |
| April | 20 °C | 11 °C | 10 | – | very busy | Good |
| May | 24 °C | 16 °C | 9 | – | busy | Good |
| June | 27 °C | 20 °C | 12 | – | moderate | Excellent |
| July | 31 °C | 24 °C | 12 | – | busy | Mixed |
| August | 32 °C | 25 °C | 8 | – | busy | Good |
| September | 28 °C | 22 °C | 12 | – | moderate | Excellent |
| October | 22 °C | 16 °C | 10 | – | busy | Good |
| November | 17 °C | 10 °C | 8 | – | very busy | Good |
| December | 12 °C | 4 °C | 6 | – | busy | Good |
Not sure about September? See the best time to visit Tokyo.
10Elsewhere
September in nearby cities
| City | High | Rain days |
|---|---|---|
| Kyoto in September | 30 °C | 10 |
| Seoul in September | 27 °C | – |
| Shanghai in September | 30 °C | 12 |
| Beijing in September | 28 °C | 8 |
| Bangkok in September | 33 °C | 24 |
| Singapore in September | 32 °C | 11 |
11FAQ
Tokyo in September: your questions
Is September a good time to visit Tokyo?
September is one of the best months to visit Tokyo. Daytime highs average 28 °C (83 °F), rain falls on about 12 days, and hotel arrivals run above the yearly average, so the main sights are moderate.
What is the weather like in Tokyo in September?
Expect warm days around 28 °C (83 °F) and nights near 22 °C (71 °F). One September in ten brings afternoons above 33 °C, and one in ten stays below 24 °C.
Does it rain a lot in Tokyo in September?
September brings about 244 mm (9.6 in) of rain over roughly 12 days, which is showery by Tokyo standards. On any given day the chance of at least 1 mm of rain is 39 percent.
What should I wear in Tokyo in September?
Pack light, breathable clothing, sun hat and sunscreen, refillable water bottle.
Is Tokyo crowded in September?
The main sights are moderate in September. Main drivers: typhoon season; Silver Week holidays; residual heat.
What time does it get dark in Tokyo in September?
Around the middle of September the sun sets at about 17:48 and rises at 05:23, giving 12.4 hours of daylight.