The best times to visit Komatsu for ideal weather are

April 30th to July 1st


September 17th to November 11th

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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Komatsu Travel Guide

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


    Average temperatures in Komatsu vary somewhat and are temperate for much of the year. The area is in the top 39 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 Komatsu, 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 67.8°F (19.9°C) with temperatures rarely dropping below 56.6°F (13.7°C) at night.

    Komatsu Temperatures (Fahrenheit)


    Komatsu 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.

    Komatsu Perceived Temperature (F)


    Komatsu Perceived Temperature (C)



    Average Komatsu 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 43.6 37.6 32.2
    Feb 45.6 38.9 32.4
    Mar 52.7 44.8 36.8
    Apr 62.8 53.9 44.9
    May 72.2 63.4 55
    Jun 78.6 71.4 65
    Jul 85.9 78.9 72.9
    Aug 88.8 81 74.5
    Sep 81.3 73.4 66.4
    Oct 71.6 62.9 55.2
    Nov 60.2 52.3 45.1
    Dec 48.9 42.5 36.4

    Show Celsius

    Month Avg. High (°C) Avg. Mean (°C) Avg. Low (°C)
    Jan 6.4 3.1 0.1
    Feb 7.6 3.8 0.2
    Mar 11.5 7.1 2.7
    Apr 17.1 12.2 7.2
    May 22.3 17.4 12.8
    Jun 25.9 21.9 18.3
    Jul 29.9 26.1 22.7
    Aug 31.6 27.2 23.6
    Sep 27.4 23 19.1
    Oct 22 17.2 12.9
    Nov 15.7 11.3 7.3
    Dec 9.4 5.8 2.4


    Precipitation (Rain or Snow)

    If dry weather is what you’re after, the months with the lowest chance of precipitation in Komatsu are December, January, and then February. The lowest chance of rain or snow occurs around early June. For example, on the week of June 4th there are only 0.8 days of precipitation on average. By contrast, it’s most likely to rain or snow in mid-December with an average of 3.1 days with significant precipitation the week of December 17th.

    When can you find snow in Komatsu? Weather stations report no annual snow. 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 Komatsu.

    Days with precipitation

    Snow on the Ground

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

    Snow depth

    Average Rain and Snow by Month

    Show Inches

    Month Daily Chance of Rain Average Snow Depth (in) Total Precipitation (in)
    Jan 38.6 2.7 0.17
    Feb 34.3 1.7 0.11
    Mar 30 0.8 0.11
    Apr 22.9 0 0.09
    May 18.6 0 0.09
    Jun 17.1 0 0.09
    Jul 21.4 0 0.14
    Aug 14.3 0 0.1
    Sep 18.6 0 0.14
    Oct 18.6 0 0.1
    Nov 30 0 0.14
    Dec 40 2.4 0.23

    Show Centimeters

    Month Daily Chance of Rain Average Snow Depth (cm) Total Precipitation (cm)
    Jan 38.6 6.9 0.43
    Feb 34.3 4.3 0.28
    Mar 30 2 0.28
    Apr 22.9 0 0.23
    May 18.6 0 0.23
    Jun 17.1 0 0.23
    Jul 21.4 0 0.36
    Aug 14.3 0 0.25
    Sep 18.6 0 0.36
    Oct 18.6 0 0.25
    Nov 30 0 0.36
    Dec 40 6.1 0.58


    Humidity and Wind

    Komatsu has slightly high to average humidity compared to most tourist destinations. The least humid month is April (58% relative humidity), and the most humid month is December (71.3%).

    Wind in Komatsu is usually moderate. The windiest month is December, followed by March and February. December’s average wind speed of around 7 knots (8.1 MPH or 13 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 December where average top sustained speeds reach 15.3 knots, which is considered a moderate breeze.

    Relative Humidity (%)

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

    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 6.4 a light breeze 13.3 a moderate breeze
    Feb 6.5 a light breeze 13.2 a moderate breeze
    Mar 6.8 a light breeze 13.8 a moderate breeze
    Apr 6.5 a light breeze 13.7 a moderate breeze
    May 6.3 a light breeze 13.1 a moderate breeze
    Jun 5.2 a light breeze 10.9 a gentle breeze
    Jul 5.5 a light breeze 11.3 a moderate breeze
    Aug 5.3 a light breeze 11.2 a moderate breeze
    Sep 5.6 a light breeze 11.7 a moderate breeze
    Oct 5.6 a light breeze 11.6 a moderate breeze
    Nov 5.9 a light breeze 12.5 a moderate breeze
    Dec 7 a gentle breeze 14.4 a moderate breeze

    Show Relative Humidity by Month

    Month Avg. Relative Humidity
    Jan 70.6
    Feb 65.1
    Mar 60.5
    Apr 58
    May 58.7
    Jun 68.1
    Jul 69.7
    Aug 67.3
    Sep 68.1
    Oct 65.4
    Nov 68.1
    Dec 71.3


    Is it Safe to Travel to Komatsu?

    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 Komatsu Travel Experience by Season

    Spring (March through May)

    Humidity and temperatures combine to make this season feel moderately cold. Highs range from 56.4°F (13.6°C) and 36.8°F (2.7°C) with warmer temperatures in the later months. Rain is somewhat common with 6 to 9 days of precipitation per month. 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. These months see moderate precipitation with 4 to 7 days of precipitation per month. June – August is slow/unreported season for tourism in Komatsu, so lodging and other accommodations may cost as much as usual.

    Fall (September through November)

    Fall daily highs range from 62.9°F (17.2°C) and 42°F (5.6°C), which will feel comfortable given the humidity and wind. It rains or snows a fair amount: 6 to 9 days per month. 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 Komatsu to be enjoyable for warm weather travelers. The average high during this season is between 38.7°F (3.7°C) and 32°F (0°C). On average, it rains or snows a good amount: 10 to 12 times per month. These times of year are slow/unreported with tourists.


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