ClimateForecastSeptemberOctober >>

Weather in September in Japan

Are you planning a trip a to Japan in September and wondering what kind of weather to expect? This page has all the details you need.

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.

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

Most areas experience a moderate amount of sunshine, with approximately 128 hours of sunlight expected in Tokyo. This makes it neither too gloomy nor overly bright.

For specific regional insights in Japan for September, refer to the map provided below. For an in-depth overview of the yearly weather conditions, do visit our Japan climate page.

Where to go in Japan in September

Find more information for the most popular destinations in the Japan on the map below. Click on a destination dot for more detailes.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

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.

Tokyo
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
32°C 
25°C 
177 hours 
116 mm 
16 days 
28°C 
21°C 
128 hours 
195 mm 
19 days 
October   >> October
>>  
23°C 
16°C 
129 hours 
211 mm 
17 days 
Climate in Tokyo

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.

Kyoto
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
33°C 
23°C 
185 hours 
148 mm 
17 days 
29°C 
19°C 
140 hours 
202 mm 
18 days 
October   >> October
>>  
23°C 
13°C 
160 hours 
162 mm 
15 days 
Climate in Kyoto

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.

Osaka
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
34°C 
25°C 
223 hours 
117 mm 
16 days 
30°C 
21°C 
156 hours 
176 mm 
18 days 
October   >> October
>>  
24°C 
15°C 
163 hours 
153 mm 
14 days 
Climate in Osaka

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.

Hakuba
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
27°C 
19°C 
166 hours 
289 mm 
20 days 
poor 
23°C 
15°C 
115 hours 
306 mm 
20 days 
poor 
October   >> October
>>  
17°C 
8°C 
129 hours 
236 mm 
17 days 
poor 
Climate in Hakuba

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.

Hakone
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
29°C 
23°C 
181 mm 
17 days 
26°C 
20°C 
272 mm 
19 days 
poor 
October   >> October
>>  
21°C 
15°C 
263 mm 
15 days 
poor 
Climate in Hakone

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. Interested in the weather conditions in a specific month? Select the month below.

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  • 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.