The best times to visit Kokubunji for ideal weather are

April 23rd to July 1st

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

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Weather in Kokubunji

Temperature

Average temperatures in Kokubunji vary drastically. Considering humidity, temperatures feel nice most of the year, excluding some cold weeks in the winter, with a fair chance of precipitation about half of the year. The area is less temperate than some — in the 32nd 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 Kokubunji, the hottest months are August, July, and then September. See average monthly temperatures below. The warmest time of year is generally early to mid August where highs are regularly around 90.4°F (32.4°C) with temperatures rarely dropping below 74.8°F (23.8°C) at night.

Kokubunji Temperatures (Fahrenheit)

Key
High
Average
Low

Kokubunji Temperatures (Celsius)

Key
High
Average
Low

“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.

Kokubunji Perceived Temperature (F)

Key
High
Average
Low

Kokubunji Perceived Temperature (C)

Key
High
Average
Low

 

Average Kokubunji 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 48.9 38.8 27.5
Feb 49.7 40.4 29.6
Mar 56.9 47 35.6
Apr 65.6 55.5 44.4
May 74.4 64.8 54.8
Jun 78.6 70.7 63.4
Jul 85.7 78 71.1
Aug 88.3 80 73
Sep 80.8 73.1 65.6
Oct 71.1 63.1 54.8
Nov 61.3 52.3 42.6
Dec 53.1 43.1 32.1

Show Celsius

Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
Jan 9.4 3.8 -2.5
Feb 9.8 4.7 -1.3
Mar 13.8 8.3 2
Apr 18.7 13.1 6.9
May 23.6 18.2 12.7
Jun 25.9 21.5 17.4
Jul 29.8 25.6 21.7
Aug 31.3 26.7 22.8
Sep 27.1 22.8 18.7
Oct 21.7 17.3 12.7
Nov 16.3 11.3 5.9
Dec 11.7 6.2 0.1


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Kokubunji are January, December, and then February. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early January. For example, on the week of January 1st there are no days of precipitation on average. By contrast, it’s most likely to rain or snow in early to mid June with an average of 3 days of significant precipitation the week of June 11th.

When can you find snow in Kokubunji? Weather stations report moderate or seasonal snow likely to be deepest around February, especially close to late February and early March. The best time to ski (if at all) in Kokubunji is often around around February 26th 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.

Chanceof Precipitation

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

Key
Days with precipitation

Snow on the Ground

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

Key
Snow depth

Average Rain and Snow by Month

Show Inches

Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
Jan 2% 1.8 0.8
Feb 9% 2.1 1.2
Mar 16% 1.2 2.8
Apr 26% 0 5.7
May 24% 0 5.9
Jun 31% 0 5.9
Jul 27% 0 6.9
Aug 23% 0 6.9
Sep 28% 0 8.5
Oct 22% 0 5
Nov 15% 0 2.7
Dec 7% 0 1.7

Show Centimeters

Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
Jan 2 4.6 2
Feb 9 5.3 3
Mar 16 3 7.1
Apr 26 0 14.5
May 24 0 15
Jun 31 0 15
Jul 27 0 17.5
Aug 23 0 17.5
Sep 28 0 21.6
Oct 22 0 12.7
Nov 15 0 6.9
Dec 7 0 4.3

 

Humidity and Wind

Kokubunji has some very humid months, with other moderately humid months on the other side of the year. The least humid month is January (43.1% relative humidity), and the most humid month is July (74%).

Wind in Kokubunji is usually calm. The windiest month is March, followed by April and May. March’s average wind speed of around 6.3 knots (7.2 MPH or 11.6 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 mid March where average top sustained speeds reach 15.6 knots, which is considered a moderate breeze.

Relative Humidity (%)

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

Key
Avg. Relative Humidity

Wind

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

Key
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 5.1 Light breeze 12.6 Significant breeze
Feb 5.7 Light breeze 13.3 Significant breeze
Mar 6.3 Light breeze 14.8 Significant breeze
Apr 6.1 Light breeze 14.7 Significant breeze
May 6.1 Light breeze 14.4 Significant breeze
Jun 5 Light breeze 12.1 Significant breeze
Jul 4.9 Light breeze 11.9 Significant breeze
Aug 4.8 Light breeze 11.7 Significant breeze
Sep 5.1 Light breeze 12 Significant breeze
Oct 4.8 Light breeze 11.1 Significant breeze
Nov 3.8 Barely noticeable 10 Significant breeze
Dec 4.2 Light breeze 11.2 Significant breeze

Show Relative Humidity by Month

Month Avg. Relative Humidity
Jan 43.1%
Feb 49%
Mar 49.3%
Apr 55.8%
May 60.4%
Jun 72.8%
Jul 74%
Aug 72.4%
Sep 71.5%
Oct 67.9%
Nov 64%
Dec 52.7%

 

Is it Safe to Travel to Kokubunji?

Our best data indicates this area is generally safe, except in a few regions. As of Jan 18, 2018 there are regional travel advisories for Japan; exercise normal security precautions and avoid some areas. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories


 

The Busiest and Least Crowded Months

The busiest month for tourism in Kokubunji, 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 Kokubunji 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

Key
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 slightly 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 Kokubunji Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderate. Highs range from 76.9°F (24.9°C) and 52.3°F (11.3°C) with warmer temperatures in the later months. Rain is somewhat common with 5 to 8 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 7 to 9 days of precipitation per month. June – August is fairly slow season for tourism in Kokubunji, so lodging and other accommodations may cost slightly less.

Fall (September through November)

Fall daily highs range from 84.3°F (29.1°C) and 56.7°F (13.7°C), which will feel comfortable given the humidity and wind. It rains or snows a significant amount: 4 to 9 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 too cold this time of year in Kokubunji to be enjoyable for warm weather travelers. The average high during this season is between 55.8°F (13.2°C) and 47.5°F (8.6°C). On average, it rains or snows a smalll amount: 1 to 2 times per month. These times of year are the second busiest with tourists.

 

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