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Nagano weather in August

Planning a journey to Nagano this August and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What is the weather like in Nagano in August?

Nagano is a region in Japan. August in Nagano generally has warm temperatures, with precipitation levels ranging from high to heavy. The month of August is in the summer season.

The average maximum temperatures are warm and range from 26°C in Omachi to 29°C in Ueda. Nighttime temperatures generally drop to 19°C in Ueda and 17°C in Omachi. In Nagano, August typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.

In August, precipitation varies across different areas. From high rainfall in Tateshina with an average of 119 mm to heavy rainfall in Otari with 291 mm. The city Hakuba usually sees around 166 hours of sunlight, indicating a moderately sunny period.

For a closer look at August's conditions in Nagano, see the map below. For a more detailed look at Nagano's yearly weather, check out our Nagano climate page.

Where to go in Nagano in August

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

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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 in Nagano

What is the weather like in August for the 5 most popular destinations in Nagano?

Average weather in Hakuba

In August Hakuba generally has high temperatures with maximum daytime temperatures around 27°C, minimum nighttime temperatures around 19°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
<<   July July
<<  
26°C 
18°C 
135 hours 
400 mm 
22 days 
poor 
27°C 
19°C 
166 hours 
289 mm 
20 days 
poor 
23°C 
15°C 
115 hours 
306 mm 
20 days 
poor 
Climate in Hakuba

Average weather in Yamanouchi

In August Yamanouchi generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 19°C and heavy monthly rainfall. So on average the conditions are tolerable that month.

Yamanouchi
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
<<   July July
<<  
27°C 
18°C 
170 hours 
246 mm 
23 days 
28°C 
19°C 
206 hours 
186 mm 
21 days 
24°C 
15°C 
142 hours 
192 mm 
21 days 
Climate in Yamanouchi

Average weather in Matsumoto

In August Matsumoto generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 18°C and heavy monthly rainfall. So on average the conditions are pleasant that month.

Matsumoto
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
<<   July July
<<  
27°C 
18°C 
170 hours 
260 mm 
22 days 
poor 
28°C 
18°C 
206 hours 
170 mm 
19 days 
24°C 
14°C 
142 hours 
220 mm 
19 days 
Climate in Matsumoto

Average weather in Nozawa Onsen

In August Nozawa Onsen generally has high temperatures with maximum daytime temperatures around 29°C, minimum nighttime temperatures around 20°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Nozawa Onsen
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
<<   July July
<<  
28°C 
19°C 
154 hours 
263 mm 
22 days 
poor 
29°C 
20°C 
197 hours 
203 mm 
19 days 
25°C 
16°C 
128 hours 
212 mm 
20 days 
Climate in Nozawa Onsen

Average weather in Karuizawa

In August Karuizawa generally has high temperatures with maximum daytime temperatures around 28°C, minimum nighttime temperatures around 19°C and heavy monthly rainfall. So on average the conditions are unpleasant that month.

Karuizawa
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
<<   July July
<<  
27°C 
19°C 
170 hours 
255 mm 
23 days 
28°C 
19°C 
206 hours 
211 mm 
20 days 
24°C 
15°C 
142 hours 
224 mm 
20 days 
Climate in Karuizawa

Is your destination not in the list? Have a look at other destinations in Nagano, in Japan.

Is August the best time to visit Nagano?

Given the typically poor weather conditions in Hakuba, August may not be the ideal time to visit Nagano.

Generally speaking, provide poor weather in Hakuba.

Interested in more climate information?

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