Tokyo Weather in September
September in Tokyo typically sees daytime highs of 28°C (82°F) and nighttime lows of 21°C (70°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Tokyo in September
Typically around 19 days of rainfall are expected, averaging 195 mm (7.7 in) for the month. This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Tokyo in September
Expect highs of 28°C (82°F) in Tokyo in September, with nights dropping to around 21°C (70°F). This kind of day-to-night contrast is typical for this time of year. Nights are mild at around 21°C (70°F), which is comfortable for most people.
Sunshine in Tokyo in September
The area enjoys a moderate level of sunlight, with around 128 hours. It's a good balance between sunny and cloudy days.
Wind Speed in Tokyo in September
Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.If you prefer dry days with pleasant temperatures, May, June and November typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Tokyo's climate page.
Tokyo Temperature in September
Min Temperature
21°C (70°F)
Max Temperature
28°C (82°F)
Chance of Rain
65%
Precipitation
195 mm (7.7 in)
Rainy days
19 days
Humidity
73%
Windspeed
3 m/s (6 knots)
Sunshine
128 hours
Percentage Sunshine
30%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Tokyo typically drop from around 29°C (84°F) at the start of September to approximately 24°C (75°F) by the end. Nights are warm, with lows typically ranging from 18°C (64°F) to 24°C (75°F).
Average temperatures in September
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in September
Historical weather for Tokyo in September
Browse day-by-day weather records for Tokyo spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Tokyo historical weather extremes in September
Our historical data for Tokyo spans 1976 to 2025, revealing these weather extremes.
- The warmest day in September was on September 2, 2000, with a maximum of 37°C (99°F).
- Tokyo experienced its chilliest September day on September 27, 1980, reaching only 16°C (61°F).
- Nighttime temperatures dropped to 12°C (54°F) on September 24, 2001, marking the coldest September night on record.
Best Places in Japan in September
Find out more about the weather in Japan and which places have the best travel conditions in this month. See all of Japan in September →
perfect weather
pleasant
tolerable
unpleasant
poor
What to Wear in Tokyo in September
Warm but pleasant conditions in Tokyo in September. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Tokyo in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Japan, check out our Tokyo's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed
See the full Tokyo climate overview or explore weather in Japan.
