The best times to visit Kokubunji for ideal weather are

April 2nd to June 10th


September 24th to November 18th

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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Kokubunji Travel Guide

  • Safety
  • The busiest and least popular months
  • Overall travel experience by time of year
  • Weather in Kokubunji


    Average temperatures in Kokubunji vary somewhat and are seasonally temperate. The area is in the top 68 percent of tourist destinations for pleasant weather. 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 mid-August where highs are regularly around 91.5°F (33.1°C) with temperatures rarely dropping below 81.5°F (27.5°C) at night.

    Kokubunji Temperatures (Fahrenheit)


    Kokubunji 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.

    Kokubunji Perceived Temperature (F)


    Kokubunji Perceived Temperature (C)



    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 44.7 36.5
    Feb 49.8 45.4 38.1
    Mar 56.9 52.6 45.6
    Apr 65.5 61.4 54.7
    May 74.5 70.6 64.6
    Jun 79.1 75.6 70.2
    Jul 86.3 83 77.9
    Aug 89.1 85.4 79.9
    Sep 81.7 78.3 72.7
    Oct 71.9 68.4 62.5
    Nov 61.8 58 51.2
    Dec 53.1 48.9 40.8

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan 9.4 7.1 2.5
    Feb 9.9 7.4 3.4
    Mar 13.8 11.4 7.6
    Apr 18.6 16.3 12.6
    May 23.6 21.4 18.1
    Jun 26.2 24.2 21.2
    Jul 30.2 28.3 25.5
    Aug 31.7 29.7 26.6
    Sep 27.6 25.7 22.6
    Oct 22.2 20.2 16.9
    Nov 16.6 14.4 10.7
    Dec 11.7 9.4 4.9

    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 Kokubunji.

    Days with precipitation

    Snow on the Ground

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

    Snow depth

    Average Rain and Snow by Month

    Show Inches

    Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
    Jan 0 0
    Feb 0 0
    Mar 0 0
    Apr 0 0
    May 0 0
    Jun 0 0
    Jul 0 0
    Aug 0 0
    Sep 0 0
    Oct 0 0
    Nov 0 0
    Dec 0 0

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 0 0
    Feb 0 0
    Mar 0 0
    Apr 0 0
    May 0 0
    Jun 0 0
    Jul 0 0
    Aug 0 0
    Sep 0 0
    Oct 0 0
    Nov 0 0
    Dec 0 0


    Humidity and Wind

    Kokubunji has below average humidity compared to most tourist destinations. The least humid month is January (28.4% relative humidity), and the most humid month is July (55.8%).

    Wind in Kokubunji is usually moderate. The windiest month is April, followed by March and May. April’s average wind speed of around 7.9 knots (9.1 MPH or 14.6 KPH) is considered “gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early-to-mid-March where average top sustained speeds reach 12.7 knots, which is considered a moderate breeze.

    Relative Humidity (%)

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

    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.

    Month Avg. Wind Meaning (Beaufort) Avg. Maximum Sustained Wind Meaning (Beufort)
    Jan 6.3 a light breeze 10.5 a gentle breeze
    Feb 7 a gentle breeze 11.1 a moderate breeze
    Mar 7.6 a gentle breeze 12 a gentle breeze
    Apr 7.9 a gentle breeze 12.3 a moderate breeze
    May 7.4 a gentle breeze 11.5 a gentle breeze
    Jun 5.9 a light breeze 9.5 a gentle breeze
    Jul 6.2 a light breeze 9.8 a gentle breeze
    Aug 6 a light breeze 9.7 a gentle breeze
    Sep 6.2 a light breeze 9.9 a gentle breeze
    Oct 6 a light breeze 9.5 a gentle breeze
    Nov 5.2 a light breeze 8.5 a gentle breeze
    Dec 5.5 a light breeze 9.2 a gentle breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 28.4
    Feb 33.9
    Mar 34.3
    Apr 39.4
    May 43.4
    Jun 54
    Jul 55.8
    Aug 53.6
    Sep 53.6
    Oct 48.8
    Nov 44.5
    Dec 36.8


    Is it Safe to Travel to Kokubunji?

    As of 5/2/2017 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.

    Overall Kokubunji Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderate. Highs range from 77.1°F (25.1°C) and 51.9°F (11.1°C) with warmer temperatures in the later months. Spring is slow/unreported for tourism, which makes it a good time for those looking for deals.

    Summer (June through August)

    The middle-year months have very comfortable weather with high temperatures that are quite warm. June – August is slow/unreported season for tourism in Kokubunji, so lodging and other accommodations may cost as much as usual.

    Fall (September through November)

    Fall daily highs range from 84.9°F (29.4°C) and 57.1°F (13.9°C), which will feel very nice given the humidity and wind. Tourism is slow/unreported during these months due to the weather, so hotels may be normally 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 55.6°F (13.1°C) and 47.4°F (8.6°C). These times of year are slow/unreported with tourists.


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