Kumamoto

Uekimachi-mōno, Japan Climate

NASA POWER reanalysis for the half-degree grid cell around Uekimachi-mōno, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

The warmest month is August, with an average high of 30°C; the coldest is January, with an average low of 1°C. A normal year brings 2058 mm of precipitation.

Temperature through the year

The normal daily high and low. The line marks today.

Normal daily high and low temperature at Uekimachi-mōno through the year, in °C, with the record for each date.-10010203040JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

Normals for Sep 25

Normal high
26°C
Normal low
18°C
Reanalysis high
32°Cin 2017
Reanalysis low
13°Cin 1994
Chance of a wet day
39%
Daylight
12 h 04 min

Month by month

Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.

MonthAvg highAvg lowWarmestColdestPrecipitationWet days
January9°C1°C18°C (2020)-5°C (2001)68 mm9.3
February10°C1°C20°C (2004)-5°C (1991)90 mm8.5
March14°C4°C22°C (2007)-3°C (2016)133 mm12.4
April19°C9°C28°C (1998)-1°C (1991)159 mm12.0
May23°C13°C32°C (2000)5°C (1991)177 mm12.4
June26°C18°C32°C (2020)11°C (2008)390 mm18.0
July29°C22°C35°C (2018)16°C (1992)363 mm18.6
August30°C23°C35°C (2013)16°C (2002)211 mm18.6
September27°C19°C34°C (2010)12°C (2001)201 mm15.0
October22°C13°C30°C (2016)3°C (1997)102 mm9.3
November17°C8°C26°C (2011)-1°C (2002)93 mm9.0
December11°C3°C22°C (2018)-5°C (2005)71 mm9.3
Year20°C11°C2058 mm152

Precipitation

Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.

2058 mm in a normal year, most in June.

Chance of a wet day

The chance of at least 1 mm of precipitation in the reanalysis on each date at Uekimachi-mōno, in percent.020406080JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Uekimachi-mōno.

The muggiest month is August, when 99 percent of days are muggy or worse, with a mean dew point of 18°C or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January1°C81%100%0%0%0%0%0%
February2°C79%99%1%0%0%0%0%
March5°C78%96%4%0%0%0%0%
April9°C78%77%17%6%1%0%0%
May14°C79%33%37%21%8%0%0%
June19°C84%2%11%33%31%23%0%
July23°C86%0%0%1%13%66%19%
August23°C84%0%0%1%8%63%28%
September20°C84%2%8%22%29%36%3%
October14°C82%38%31%19%10%2%0%
November9°C81%82%13%4%1%0%0%
December3°C81%99%1%0%0%0%0%

Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.

Clouds

Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.

The clearest month is October, with the sky 60 percent covered on average; the cloudiest is June, at 81 percent.

Wind

The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.

The windiest month is January, averaging 11.2 km/h at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 20, with 14 h 20 min of daylight; the shortest is Dec 17, with 9 h 59 min.

Hours of daylight at Uekimachi-mōno through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

Month pages

The weather in Uekimachi-mōno in each month, day by day.

What this means

A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.

Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.

Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.

More for this place

Nearby

Sources

Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.