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Kitakyushu, Japan climate

Cfa Humid subtropical

Kitakyushu has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 32°C, while the coldest is January averaging around 3°C at night. Precipitation totals about 1721 mm a year and is strongly seasonal — July alone averages 315 mm while December barely receives 76 mm.

☀️ Summers
Hot
Highs near 32°C in August.
❄️ Winters
Chilly
Lows near 3°C in January.
🌧️ Rain
Very wet
About 1721 mm of rain a year.
Wettest in July
Sky & trend
Often cloudy
Cloudy skies much of the year.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures TEMPERATURE °C 10°20°30°40° PRECIPITATION (mm) 0160320 JanAprJulOct

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER) 0h2h3h4h6h J: ~2.4 hours of sun/dayF: ~2.9 hours of sun/dayM: ~3.5 hours of sun/dayA: ~4.3 hours of sun/dayM: ~4.4 hours of sun/dayJ: ~2.8 hours of sun/dayJ: ~3.8 hours of sun/dayA: ~4.5 hours of sun/dayS: ~4.0 hours of sun/dayO: ~4.4 hours of sun/dayN: ~3.6 hours of sun/dayD: ~2.8 hours of sun/day JFMAMJJASOND Sun hours per day (est.)

Kitakyushu climate normals (1991–2020)

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)101114202427313228231812
Avg temp (°C)671015192327282419138
Avg low (°C)3361015192425211595
Precipitation (mm)8879114125143239315198166859276
Jan – JunJanFebMarAprMayJun
Avg high (°C)101114202427
Avg temp (°C)6710151923
Avg low (°C)336101519
Precipitation (mm)8879114125143239
Jul – DecJulAugSepOctNovDec
Avg high (°C)313228231812
Avg temp (°C)27282419138
Avg low (°C)2425211595
Precipitation (mm)315198166859276

Sky & atmosphere

JanFebMarAprMayJunJulAugSepOctNovDec
Cloud cover (%)767370676881736667606571
Relative humidity (%)737272757983858279747273
Wind speed (km/h)18.617.716.714.612.511.411.912.514.615.415.618.0
Jan – JunJanFebMarAprMayJun
Cloud cover (%)767370676881
Relative humidity (%)737272757983
Wind speed (km/h)18.617.716.714.612.511.4
Jul – DecJulAugSepOctNovDec
Cloud cover (%)736667606571
Relative humidity (%)858279747273
Wind speed (km/h)11.912.514.615.415.618.0
Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Yahata, about 10 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →