Nagano Prefecture

Nagano Prefecture Weather in July

Average temperatures, rainfall, sunshine and the best places to visit in Nagano Prefecture, Japan in July.

Thinking about venturing to Nagano Prefecture, Japan this July and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What to Expect in Nagano Prefecture in July

Nagano Prefecture, Japan is a region in Japan. July in Nagano Prefecture generally has warm temperatures, with heavy precipitation. July falls during the summer season.

Temperatures

The average maximum temperatures are warm and range from 25°C (77°F) in Omachi to 28°C (82°F) in Ueda. Nighttime temperatures generally drop to 19°C (66°F) in Ueda and 17°C (63°F) in Omachi.

For a closer look at conditions across Nagano Prefecture, Japan, refer to the map below.

Precipitation

In July, precipitation varies across different areas. From heavy rainfall in Tateshina with an average of 177 mm (7 in) to heavy rainfall in Omachi with 400 mm (16 in). Based on climate data from the last 30 years, Hakuba receives the most rainfall during this month of the year.

Average sunshine

Sunshine amounts are decent in most places. Hakuba gets approximately 135 hours of sunlight in July, offering a reasonable amount of both bright and cloudy periods. Curious about sunnier destinations? Our weather planner makes it easy to find places worldwide with pleasant weather.

Explore Nagano Prefecture by month

Pick a month to see the average temperature, rainfall and sunshine in Nagano Prefecture — and find the best time to visit. (based on Hakuba)

Best Places to Visit in Nagano Prefecture in July

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Nagano Prefecture.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Nagano Prefecture

What is the weather like in July for some of the most popular destinations in Nagano Prefecture, Japan?

Temperature range in Nagano Prefecture (July)

Precipitation variation in Nagano Prefecture (July)

Hakuba

In July Hakuba generally has high temperatures with maximum daytime temperatures around 26°C (79°F), minimum nighttime temperatures around 18°C (64°F) and heavy monthly rainfall. So on average the conditions are poor that month.

June
July
August
Max temperature
22°C (72°F)
26°C (79°F)
27°C (81°F)
Min temperature
13°C (55°F)
18°C (64°F)
19°C (66°F)
Monthly sun hours
135 hours
135 hours
166 hours
Monthly rainfall
320 mm (13 in)
400 mm (16 in)
289 mm (11 in)
Monthly rainy days
20 days
22 days
20 days
Weather conditions

Yamanouchi

In July Yamanouchi generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 18°C (64°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

June
July
August
Max temperature
23°C (73°F)
27°C (81°F)
28°C (82°F)
Min temperature
14°C (57°F)
18°C (64°F)
19°C (66°F)
Monthly sun hours
165 hours
170 hours
206 hours
Monthly rainfall
193 mm (7.6 in)
246 mm (9.7 in)
186 mm (7.3 in)
Monthly rainy days
21 days
23 days
21 days
Weather conditions

Matsumoto

In July Matsumoto generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 18°C (64°F) and heavy monthly rainfall. So on average the conditions are poor that month.

June
July
August
Max temperature
23°C (73°F)
27°C (81°F)
28°C (82°F)
Min temperature
13°C (55°F)
18°C (64°F)
18°C (64°F)
Monthly sun hours
165 hours
170 hours
206 hours
Monthly rainfall
248 mm (9.8 in)
260 mm (10 in)
170 mm (6.7 in)
Monthly rainy days
20 days
22 days
19 days
Weather conditions

Nozawa Onsen

In July Nozawa Onsen generally has high temperatures with maximum daytime temperatures around 28°C (82°F), minimum nighttime temperatures around 19°C (66°F) and heavy monthly rainfall. So on average the conditions are poor that month.

June
July
August
Max temperature
24°C (75°F)
28°C (82°F)
29°C (84°F)
Min temperature
15°C (59°F)
19°C (66°F)
20°C (68°F)
Monthly sun hours
151 hours
154 hours
197 hours
Monthly rainfall
194 mm (7.6 in)
263 mm (10 in)
203 mm (8 in)
Monthly rainy days
20 days
22 days
19 days
Weather conditions

Karuizawa

In July Karuizawa generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 19°C (66°F) and heavy monthly rainfall. So on average the conditions are unpleasant that month.

June
July
August
Max temperature
23°C (73°F)
27°C (81°F)
28°C (82°F)
Min temperature
14°C (57°F)
19°C (66°F)
19°C (66°F)
Monthly sun hours
165 hours
170 hours
206 hours
Monthly rainfall
236 mm (9.3 in)
255 mm (10 in)
211 mm (8.3 in)
Monthly rainy days
21 days
23 days
20 days
Weather conditions

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

In our records: Japan July extremes

Notable July records observed across cities in Japan in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest July day in Japan reached 42°C (108°F) in Okayama on July 15, 1988.
  • From our sources, the wettest July day in Japan brought 312 mm (12 in) in Wakayama on July 6, 2018.

Popular cities in July

Day & night temperatures, rainfall and average weather in Nagano Prefecture in July.

City Weather Day temp Night temp Rainfall
Hakuba 26°C (79°F) 18°C (64°F) 400 mm (16 in)
Yamanouchi 27°C (81°F) 18°C (64°F) 246 mm (9.7 in)
Matsumoto 27°C (81°F) 18°C (64°F) 260 mm (10 in)
Nozawa Onsen 28°C (82°F) 19°C (66°F) 263 mm (10 in)
Karuizawa 27°C (81°F) 19°C (66°F) 255 mm (10 in)
Otari 26°C (79°F) 18°C (64°F) 389 mm (15 in)

Nagano Prefecture weather in July: frequently asked questions

What is the weather like in Nagano Prefecture, Japan in July?

July in Nagano Prefecture, Japan brings poor weather. In Hakuba, daytime temperatures are typically around 26°C (79°F) and nighttime lows hover near 18°C (64°F).

What is the average temperature in Nagano Prefecture, Japan in July?

Hakuba averages a daytime maximum of 26°C (79°F) in July, with overnight lows close to 18°C (64°F).

Does Nagano Prefecture, Japan get a lot of rain in July?

Expect plenty of rainfall. Hakuba records an average of 400 mm (16 in) in July, putting it among the wetter months for Nagano Prefecture, Japan.

Is July a Good Time to Visit Nagano Prefecture, Japan?

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

Generally speaking, the best visiting conditions can be found in offering mostly poor weather in Hakuba.

Interested in more climate information?

We have much more information about the climate in Nagano Prefecture.

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.

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