Weather in September in Japan
Thinking about venturing to Japan this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:
What is the weather like in Japan in September?
The weather in Japan in September can be quite varied, with temperatures that range from pleasant to very warm and precipitation levels ranging from high to heavy. The month of September is in the summer season.
Temperatures
The average highest temperatures fluctuate between pleasant in Nemuro at 18°C to very warm in Moriguchi at 30°C. Nighttime temperatures generally drop to 21°C in Moriguchi and 15°C in Nemuro.To learn more about the conditions in specific areas of Japan, check out the map below.
Precipitation
In September, precipitation varies across different areas. From high rainfall in Kitami with an average of 129 mm to heavy rainfall in Shingu with 352 mm.Average sunshine
The city Tokyo usually sees around 128 hours of sunlight, indicating a moderately sunny period.For a more detailed look at Japan's conditions throughout the year, check out our Japan climate page.
Where to go in Japan in September
perfect weather
pleasant
tolerable
unpleasant
poor
Select a Month of Interest
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 Japan's climate page.
Popular destinations
What is the weather like in September for the 5 most popular destinations in Japan?
Tokyo
In September Tokyo generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 21°C and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Kyoto
In September Kyoto generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 19°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.
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Osaka
In September Osaka generally has very high temperatures with maximum daytime temperatures around 30°C, minimum nighttime temperatures around 21°C and heavy monthly rainfall. So on average the conditions are tolerable that month.
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Hakuba
In September Hakuba generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 15°C and heavy monthly rainfall. So on average the conditions are poor that month.
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Hakone
In September Hakone generally has high temperatures with maximum daytime temperatures around 26°C, minimum nighttime temperatures around 20°C 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 visit Japan?
Given the typically tolerable weather conditions in Tokyo, September might be a good time to visit Japan.
Generally speaking, May, June and November provide pleasant weather in Tokyo. In contrast, January tends to have poor weather conditions.
Interested in more climate information?
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.