Japan weather in September
What is the weather like in Japan in September?
The weather conditions in Japan in September vary from poor to pleasant depending on the destination. It is a summer month.
During September in Japan, the average maximum temperature varies from pleasant in Nemuro with 18°C (65°F) to very high in Moriguchi with 30°C (86°F). Minimum nighttime temperatures generally drop to 21°C (70°F) in Moriguchi and 15°C (59°F) in Nemuro.
Precipitation in September varies from high in Kitami with an average of 129mm (5.09 inches) of rainfall to heavy in Shingu with 352mm (14 inches).
It is also generally a
moderately sunny
time of year with an average of 128 hours of sunshine in Tokyo during the entire month.
To learn more about the weather conditions in specific areas of Japan, check out the map below.
Where to go in Japan in September
perfect weather
pleasant
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unpleasant
poor
Popular destinations in Japan
What is the weather like in September for the 5 most popular destinations in Japan?
Average weather in Tokyo
In September Tokyo generally has high temperatures with maximum daytime temperatures around 28°C (83°F), minimum nighttime temperatures around 21°C (71°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Kyoto
In September Kyoto generally has high temperatures with maximum daytime temperatures around 29°C (83°F), minimum nighttime temperatures around 19°C (67°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.
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Average weather in Osaka
In September Osaka generally has very high temperatures with maximum daytime temperatures around 30°C (86°F), minimum nighttime temperatures around 21°C (70°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Average weather in Hakuba
In September Hakuba generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 15°C (58°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Average weather in Hakone
In September Hakone generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are poor that month.
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Is your destination not in the list? Have a look at other destinations in Japan.
Is September the best time to go to Japan?
In our opinion September is a good time to visit Japan with commonly tolerable weather in Tokyo.
On average the best time to visit Japan is in May, June and November with generally pleasant weather in Tokyo.
The worst month is January that can have poor weather conditions.
Interested in more climate information?
We have much more information about the climate in Japan.
Interested in the weather conditions in a specific month? Select the month below.
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 climate conditions. Find out where to go with our weather planner.