Japan weather in September

Are you planning a trip to Japan in September and wondering what kind of weather to expect? Look no further than this page for all the information you need.

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

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.

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 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches 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 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.

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
<<  
32°C / 89°F 
25°C / 76°F 
177 hours 
116mm / 4.57" 
16 days 
28°C / 83°F 
21°C / 71°F 
128 hours 
195mm / 7.69" 
19 days 
October   >> October
>>  
23°C / 73°F 
16°C / 60°F 
129 hours 
211mm / 8.30" 
17 days 
Climate in Tokyo

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.

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 / 91°F 
23°C / 74°F 
185 hours 
148mm / 5.83" 
17 days 
29°C / 83°F 
19°C / 67°F 
140 hours 
202mm / 7.96" 
18 days 
October   >> October
>>  
23°C / 73°F 
13°C / 55°F 
160 hours 
162mm / 6.39" 
15 days 
Climate in Kyoto

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.

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
<<  
34°C / 93°F 
25°C / 77°F 
223 hours 
117mm / 4.59" 
16 days 
30°C / 86°F 
21°C / 70°F 
156 hours 
176mm / 6.93" 
18 days 
October   >> October
>>  
24°C / 75°F 
15°C / 59°F 
163 hours 
153mm / 6.04" 
14 days 
Climate in Osaka

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.

Hakuba
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
<<  
27°C / 80°F 
19°C / 65°F 
166 hours 
289mm / 11" 
20 days 
poor 
23°C / 73°F 
15°C / 58°F 
115 hours 
306mm / 12" 
20 days 
poor 
October   >> October
>>  
17°C / 62°F 
8°C / 46°F 
129 hours 
236mm / 9.28" 
17 days 
poor 
Climate in Hakuba

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.

Hakone
Max temperature Max temp
Min temperature Min temp
Monthly rainfall Rainfall
Monthly rainy days Rainy days
Weather conditions Weather
<<   August August
<<  
29°C / 85°F 
23°C / 73°F 
181mm / 7.11" 
17 days 
26°C / 79°F 
20°C / 68°F 
272mm / 11" 
19 days 
poor 
October   >> October
>>  
21°C / 70°F 
15°C / 58°F 
263mm / 10" 
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 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.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      
  • 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.