Japan weather in September

Many people wonder what kind of weather they can expect in September in Japan. Is this month a good time to go to Japan? To answer that question we created this page with all the information you need.

What is the weather like in Japan in September?

The weather conditions in Japan in September range from poor to pleasant depending on the destination. It is a summer month.

During September in Japan, the average maximum temperature ranges from low in Mount Fuji with 6°C (43°F) to very high in Ishigaki Island with 31°C (88°F). Minimum nighttime temperatures generally drop to 26°C (79°F) in Ishigaki Island and 1°C (33°F) in Mount Fuji.

Precipitation in September ranges from high in Abashiri with an average of 113mm (4.4inch) rainfall to heavy in Kōchi with 401mm (16inch). It is also generally a moderately sunny period with an average of 128 hours of sunshine in Tokyo during the entire month.

We invite you to have a look at the map below to find out more about the different weather conditions per location in Japan.

Where to go in Japan in September

Find the average weather conditions in September for the most popular destinations in Japan on the map below. Click on a destination dot for more detailed information.

Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inch a month).

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 27°C (81°F), minimum nighttime temperatures around 20°C (69°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Tokyo
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
31°C / 89°F 
23°C / 74°F 
177 hours 
167mm / 6.6inch 
10 days 
27°C / 81°F 
20°C / 69°F 
128 hours 
225mm / 8.9inch 
13 days 
October   >> October
>>  
22°C / 72°F 
15°C / 59°F 
129 hours 
233mm / 9.2inch 
12 days 
Climate in Tokyo

Average weather in Kyoto

In September Kyoto generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 20°C (68°F) and heavy monthly rainfall. So on average the conditions are pleasant that month.

Kyoto
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
33°C / 92°F 
24°C / 75°F 
185 hours 
133mm / 5.2inch 
9 days 
29°C / 84°F 
20°C / 68°F 
140 hours 
180mm / 7.1inch 
11 days 
October   >> October
>>  
23°C / 73°F 
14°C / 57°F 
160 hours 
121mm / 4.8inch 
9 days 
Climate in Kyoto

Average weather in Osaka

In September Osaka generally has high temperatures with maximum daytime temperatures around 29°C (85°F), minimum nighttime temperatures around 22°C (71°F) and heavy monthly rainfall. So on average the conditions are pleasant that month.

Osaka
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
33°C / 92°F 
25°C / 78°F 
223 hours 
90mm / 3.5inch 
8 days 
29°C / 85°F 
22°C / 71°F 
156 hours 
160mm / 6.3inch 
10 days 
October   >> October
>>  
23°C / 73°F 
16°C / 60°F 
163 hours 
112mm / 4.4inch 
9 days 
Climate in Osaka

Average weather in Hakuba

In September Hakuba generally has high temperatures with maximum daytime temperatures around 24°C (74°F), minimum nighttime temperatures around 14°C (58°F) and heavy monthly rainfall. So on average the conditions are tolerable that month.

Hakuba
Max temperature Max temp
Min temperature Min temp
Monthly sun hours Sun hours
Monthly rainfall Rainfall
Weather conditions Weather
<<   August August
<<  
29°C / 84°F 
19°C / 65°F 
166 hours 
171mm / 6.7inch 
24°C / 74°F 
14°C / 58°F 
115 hours 
186mm / 7.3inch 
October   >> October
>>  
18°C / 64°F 
7°C / 45°F 
129 hours 
122mm / 4.8inch 
Climate in Hakuba

Average weather in Hakone

In September Hakone generally has low temperatures with maximum daytime temperatures around 6°C (43°F), minimum nighttime temperatures around 1°C (33°F) and heavy monthly rainfall. So on average the conditions are poor that month.

Hakone
Max temperature Max temp
Min temperature Min temp
Monthly rainfall Rainfall
Weather conditions Weather
<<   August August
<<  
10°C / 49°F 
4°C / 39°F 
230mm / 9.1inch 
poor 
6°C / 43°F 
1°C / 33°F 
270mm / 11inch 
poor 
October   >> October
>>  
-0°C / 32°F 
-5°C / 23°F 
185mm / 7.3inch 
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 go to Japan?

In our opinion September is not the best time to visit Japan with commonly unpleasant weather in Tokyo.

On average the best time to visit Japan is in April, May and June 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.

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  • Weather and climate has detailed information for almost all countries 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 suggests which destination suits your ideal climate conditions. Find out where to go with our weather planner.