The best times to visit Shinano for ideal weather are

April 30th to July 8th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.



Other Shinano Travel Info

Weather in Shinano


Average temperatures in Shinano vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 21st percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Shinano, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally early August where highs are regularly around 90.2°F (32.3°C) with temperatures rarely dropping below 71.5°F (21.9°C) at night.

Shinano Temperatures (Fahrenheit)


Shinano Temperatures (Celsius)


“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Shinano Perceived Temperature (F)


Shinano Perceived Temperature (C)



Average Shinano Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

Month Avg. High (°F) Avg. Mean (°F) Avg. Low (°F)
Jan 38.3 30.9 23.5
Feb 41.8 33.2 24.6
Mar 50.5 39.9 30.4
Apr 62.3 50.3 38.9
May 73.5 61.4 50
Jun 79.7 69.3 60.5
Jul 85.9 76 68.5
Aug 88 77.7 70.3
Sep 80 70.1 62.3
Oct 68.1 58.2 49.4
Nov 56.1 46.4 37.5
Dec 44.5 36.5 28.8

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 3.5 -0.6 -4.7
Feb 5.4 0.7 -4.1
Mar 10.3 4.4 -0.9
Apr 16.8 10.2 3.8
May 23.1 16.3 10
Jun 26.5 20.7 15.8
Jul 29.9 24.4 20.3
Aug 31.1 25.4 21.3
Sep 26.7 21.2 16.8
Oct 20.1 14.6 9.7
Nov 13.4 8 3.1
Dec 6.9 2.5 -1.8



Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Shinano are October, November, and then September. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early to mid October. For example, on the week of October 8th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in mid June with an average of 3 days of significant precipitation the week of June 18th.

When can you find snow in Shinano? Weather stations report a good amount of seasonal snow likely to be deepest around February, especially close to mid February. The best time to ski (if at all) in Shinano is often around around December 17th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Shinano.

Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Shinano (in).

Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 23% 2 5
Feb 26% 6.3 4.1
Mar 24% 0.9 2.4
Apr 23% 0 2.7
May 21% 0 3
Jun 29% 0 4.4
Jul 33% 0 4.2
Aug 27% 0 5.8
Sep 21% 0 4.4
Oct 17% 0 3.6
Nov 19% 0 2.2
Dec 22% 3.3 4.8

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 23 5.1 12.7
Feb 26 16 10.4
Mar 24 2.3 6.1
Apr 23 0 6.9
May 21 0 7.6
Jun 29 0 11.2
Jul 33 0 10.7
Aug 27 0 14.7
Sep 21 0 11.2
Oct 17 0 9.1
Nov 19 0 5.6
Dec 22 8.4 12.2


Humidity and Wind

Shinano has some very humid months, with other comfortably humid months. The least humid month is April (50.3% relative humidity), and the most humid month is December (70.3%).

Wind in Shinano is usually calm. The windiest month is May, followed by April and March. May’s average wind speed of around 5.8 knots (6.7 MPH or 10.8 KPH) is considered “a light breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early to mid May where average top sustained speeds reach 13.3 knots, which is considered a moderate breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Shinano.

Avg. Relative Humidity


The graph below shows wind speed (max and average) in knots.

Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

Month Avg. Wind Avg. Wind Feel Sustained High Wind High Wind Feel
Jan 3.8 Barely noticeable 9 Gentle breeze
Feb 4.6 Light breeze 10.7 Gentle breeze
Mar 5.3 Light breeze 12 Gentle breeze
Apr 5.8 Light breeze 12.7 Significant breeze
May 5.8 Light breeze 12.7 Gentle breeze
Jun 5 Light breeze 11 Significant breeze
Jul 4.4 Light breeze 10.2 Gentle breeze
Aug 4.6 Light breeze 10.3 Gentle breeze
Sep 5 Light breeze 10.6 Gentle breeze
Oct 4.8 Light breeze 10.7 Gentle breeze
Nov 4.1 Light breeze 9.7 Gentle breeze
Dec 4 Light breeze 9.5 Gentle breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 69.6%
Feb 64.1%
Mar 57.2%
Apr 50.3%
May 50.5%
Jun 61.9%
Jul 68.3%
Aug 66.9%
Sep 65.8%
Oct 65.9%
Nov 68%
Dec 70.3%


Is it Safe to Travel to Shinano?

Our best data indicates this area is generally safe. As of Dec 04, 2023 there are no travel advisories or warnings for Japan; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Nov 14, 2023.


The Busiest and Least Crowded Months

The busiest month for tourism in Shinano, Japan is January, followed by March and April. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Shinano in December. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month


Most Popular Months to Visit

Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 73.3 in December means 73.3% of the tourists vs. January.



Overall Shinano Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 75.8°F (24.3°C) and 45.6°F (7.6°C) with far warmer temperatures in the later months. Rain is somewhat common with roughly 7 days of significant precipitation per month. Spring is the busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see the most precipitation with 8 to 10 days of precipitation per month. June – August is fairly slow season for tourism in Shinano, so lodging and other accommodations may cost slightly less.

Fall (September through November)

Fall daily highs range from 83.9°F (28.8°C) and 51.7°F (10.9°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 5 to 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Shinano to be enjoyable for warm weather travelers. The average high during this season is between 47.7°F (8.7°C) and 36.9°F (2.7°C). On average, it rains or snows a fair amount: consistently 7 times per month. These times of year are the second busiest with tourists.


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