In June, Nagano Prefecture, like the rest of Honshu, is in the transition period from spring to summer, and the weather is unstable. The rainy season, called “Tsuyu,” begins in mid-June and lasts for about a month. It is generally hot and humid. However, temperatures are cooler than in Tokyo, Osaka or Kyoto, especially in the mornings and evenings, so it is advisable to bring a cardigan or other jacket.

Overview of Nagano Prefecture’s climate (year-round)

NAGANO, JAPAN - JUNE 14, 2017 : Top of Mount Tsubakuro Dake, famous trekking mountain in Azumino, Nagano, Japan = Shutterstock

NAGANO, JAPAN – JUNE 14, 2017 : Top of Mount Tsubakuro Dake, famous trekking mountain in Azumino, Nagano, Japan = Shutterstock

In Nagano prefecture, there is a big difference in climate depending on the location such as mountainous areas and basins. So, first, let’s get an overview of the climate of Nagano prefecture throughout the year.

Mountainous areas are cold and snowy

In Nagano prefecture in the central region of Honshu, mountainous areas (Japanese Alps) with an altitude of 2,000 to 3,000 m are connected from north to south, and major cities such as Nagano City and Matsumoto City are located in the basin. Mountainous areas such as Hakuba, Kamikochi, and Shiga Kogen are cold and ideal as summer resorts, but in winter it is very cold and it snows a lot.

Basins have relatively little snow

On the other hand, in Nagano City, Matsumoto City, Suwa City, Iida City, etc., which are located in the basin, the maximum temperature is as high as in Tokyo during the daytime in summer, but it is cool in the morning and evening. It doesn’t snow as much as in the mountains in winter, but it’s colder than in Tokyo and Osaka.

Karuizawa does not get much snow in winter

Karuizawa, an hour away from Tokyo on the Hokuriku Shinkansen, is a popular highland resort area as a summer resort. However, Karuizawa has much less snow than Hakuba and Shiga Kogen. The entire area of ​​Nagano has less rainfall than other areas such as Tokyo. The cherry blossoms bloom a little later than in Tokyo and after early April.

Frequently Asked Questions

What should I wear in Nagano Prefecture in June?

In June, it is generally hot and humid in Nagano Prefecture, so summer clothes may be fine. However, it is colder than in Tokyo or Osaka, so a jacket is necessary. Umbrellas are also a must in June, as the number of rainy days increases. For more information on spring and summer clothing, please refer to the articles below.

Is June the best season for sightseeing in Nagano Prefecture?

June is not the best season because there are more rainy days. However, compared to the spring and fall tourist seasons, the number of tourists is relatively small and hotel rates are low, so it is not bad.

Weather in Nagano Pref. in early June

Sightseeing scenery that simply shows the weather in Nagano in June3

Nagano – Japan, June 3, 2017: Main hall of the important Buddhist Zenkoji temple in Nagano

Average temperature
Highest temperature
(Lowest temperature)
Total precipitation
(Total snowfall depth)
Nagano City 19.2℃  (66.6°F)
25.4℃  (77.7°F)
14.2 ℃ (57.6°F)
15.7 mm (0.62 inch)
Matsumoto 18.9 ℃  (66.0°F)
25.7℃  (78.3°F)
13.4 ℃ (56.1°F)
17.5 mm (0.69 inch)
Hakuba 16.4 ℃  (61.5°F)
23.1℃  (73.6°F)
11.1 ℃ (52.0°F)
23.9 mm (0.94 inch)
Karuizawa 14.5 ℃  (58.1°F)
20.7℃  (69.3°F)
9.4 ℃ (48.9°F)
29.1 mm (84.4 inch)

※ Source: All figures are the average for 30 years of 1991-2020 announced by the Japan Meteorological Agency

Weather in Nagano Pref. in mid-June

Sightseeing scenery that simply shows the weather in Nagano in June2

JUNE 14, 2017 : Trekker trek to Tsubakuro Dake mountain, famous trekking mountain in North Japan Alps Nagano Japan = Shutterstock

Average temperature
Highest temperature
(Lowest temperature)
Total precipitation
(Total snowfall depth)
Nagano City 20.5℃  (68.9°F)
26.2℃  (79.2°F)
16.1 ℃ (61.0°F)
35.3 mm (1.39 inch)
Matsumoto 20.2℃  (68.4°F)
26.3℃  (79.3°F)
15.4 ℃ (59.7°F)
42.8 mm (1.69 inch)
Hakuba 17.7 ℃  (63.9°F)
23.6℃  (74.5°F)
13.3 ℃ (55.9°F)
60.9 mm (2.40 inch)
Karuizawa 16.1 ℃  (61.0°F)
21.4℃  (70.5°F)
12.0 ℃ (53.6°F)
64.4 mm (2.54 inch)

※Source:  All figures are the average for 30 years of 1991-2020 announced by the Japan Meteorological Agency

Weather in Nagano Pref. in late June

Sightseeing scenery that simply shows the weather in Nagano in June4

Kamikochi is one of the most popular mountain resorts in Nagano Prefecture = Shutterstock

Average temperature
Highest temperature
(Lowest temperature)
Total precipitation
(Total snowfall depth)
Nagano City 21.6℃  (70.9°F)
26.9℃  (80.4°F)
17.8 ℃ (64.0°F)
55.1 mm (2.17 inch)
Matsumoto 21.6 ℃  (70.9°F)
27.3℃  (81.1°F)
17.3 ℃ (63.1°F)
38.9 mm (1.53 inch)
Hakuba 19.0 ℃  (66.2°F)
24.2℃  (75.6°F)
15.1 ℃ (59.2°F)
19.0 mm (66.2 inch)
Karuizawa 17.5 ℃  (63.5°F)
22.3℃  (72.1°F)
14.0 ℃ (57.2°F)
61.1 mm (2.41 inch)

※ Source: All figures are the average for 30 years of 1991-2020 announced by the Japan Meteorological Agency

What to wear in Japan during spring

For more information on spring and summer clothing, please refer to the articles below.

Monthly weather in Nagano Pref.

Below are articles about the weather in Nagano Prefecture. Click on the month of interest to see articles about that month.

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

Weather in tourist destinations around Japan

Below are pages showing the climates of various regions in Japan at the same time of the year.

Tokyo Osaka Kyoto
Hokkaido Sendai Nagano
Nagoya Hiroshima Fukuoka
Okinawa

 

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