Daytime highs, nighttime lows and the warmest cities across Japan this September.
Japan, experiences maximum daytime temperatures in September ranging from 18°C (64°F) in Nemuro to 30°C (86°F) in Moriguchi. Nighttime temperatures generally drop to 21°C (70°F) in Moriguchi and 15°C (59°F) in Nemuro. In September, it is summer.
Discover the typical September temperatures for the most popular locations of Japan on the map below. Detailed insights are just a click away.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Japan.
Marker color shows the average daytime high temperature in September: blue is cold, red is hot.
Drill down to September weather for any region in Japan.
Pick a city to see its September weather averages.
Tokyo averages a daytime high of 28°C (82°F) in September, which is high for Japan.
Tokyo sees nighttime lows close to 21°C (70°F) in September.
Moriguchi tops the warmest city list in our database with average maximum daytime temperatures around 30°C (86°F) and a minimum nighttime temperature of around 21°C (70°F).
According to our data, Nemuro holds the title for the coldest city in Japan in September. It experiences maximum temperatures of approximately 18°C (64°F) and drops to lows of about 15°C (59°F) during the night.
Tokyo enjoys a balanced 128 hours of sunlight. This makes it neither too overcast nor too sunny.
The water temperature averages approximately 26°C (79°F) in Nagasaki this month, an ideal temperature for swimming and cooling off.
We have much more information about the climate in Japan.
Weather and climate has detailed information for every country in the world. Are you going to Japan? Get detailed historical weather averages for many cities in Japan.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.
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