Ibaraki

Kashima-shi, Japan Climate

NASA POWER reanalysis for the half-degree grid cell around Kashima-shi, 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 29°C; the coldest is January, with an average low of 3°C. A normal year brings 1507 mm of precipitation.

Temperature through the year

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

Normal daily high and low temperature at Kashima-shi 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
24°C
Normal low
20°C
Reanalysis high
32°Cin 1999
Reanalysis low
15°Cin 2010
Chance of a wet day
48%
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°C3°C18°C (2000)-2°C (1997)65 mm6.2
February9°C3°C19°C (2016)-2°C (1996)59 mm5.7
March12°C6°C21°C (1997)0°C (2001)112 mm12.4
April17°C10°C26°C (2005)2°C (2001)120 mm12.0
May21°C15°C30°C (2019)7°C (1991)140 mm12.4
June24°C19°C33°C (2005)12°C (2011)162 mm15.0
July27°C22°C34°C (1991)16°C (1993)158 mm15.5
August29°C24°C35°C (2007)18°C (2002)133 mm15.5
September26°C21°C34°C (2010)13°C (1992)198 mm15.0
October21°C16°C29°C (1998)9°C (1996)205 mm12.4
November16°C11°C24°C (1999)4°C (1992)96 mm9.0
December11°C6°C23°C (2004)-1°C (2002)59 mm6.2
Year19°C13°C1507 mm137

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.

1507 mm in a normal year, most in October.

Chance of a wet day

The chance of at least 1 mm of precipitation in the reanalysis on each date at Kashima-shi, in percent.0204060JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Kashima-shi.

The muggiest month is August, when 96 percent of days are muggy or worse, with a mean dew point of 18°C or more.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January1°C73%100%0%0%0%0%0%
February1°C73%100%0%0%0%0%0%
March4°C73%99%1%0%0%0%0%
April9°C76%81%15%3%0%0%0%
May14°C79%33%35%28%4%0%0%
June18°C84%2%15%36%36%11%0%
July22°C85%0%0%6%26%58%10%
August23°C83%0%0%3%13%53%30%
September20°C82%2%8%17%32%33%9%
October15°C80%28%31%25%13%3%0%
November10°C77%80%14%6%1%0%0%
December4°C75%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 December, with the sky 57 percent covered on average; the cloudiest is June, at 80 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 February, averaging 20.2 km/h at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jun 22, with 14 h 37 min of daylight; the shortest is Dec 17, with 9 h 43 min.

Hours of daylight at Kashima-shi 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 Kashima-shi 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.