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Niseko, Japan climate

Dfb Warm-summer humid continental

Niseko has a seasonal cool-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is August with an average daily high near 79°F, while the coldest is January averaging around 20°F at night. Around 37 inches of precipitation falls each year, peaking in August (4.9 inches) and easing off in March (1.6 inches).

☀️ Summers
Warm
Highs near 79°F in August.
❄️ Winters
Very cold
Lows near 20°F in January.
🌧️ Rain
Moderate rainfall
About 37 in of rain a year.
Wettest in August
Sky & trend
Often grey
Overcast skies dominate 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 °F 20°40°60°80° PRECIPITATION (in) 02.55 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: ~0.9 hours of sun/dayF: ~1.5 hours of sun/dayM: ~2.7 hours of sun/dayA: ~4.1 hours of sun/dayM: ~4.4 hours of sun/dayJ: ~4.0 hours of sun/dayJ: ~3.4 hours of sun/dayA: ~3.7 hours of sun/dayS: ~3.6 hours of sun/dayO: ~2.9 hours of sun/dayN: ~1.6 hours of sun/dayD: ~1.0 hours of sun/day JFMAMJJASOND Sun hours per day (est.)

Niseko climate normals (1991–2020)

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°F)313239516269767973604735
Avg temp (°F)262733435361687164524130
Avg low (°F)202026354553626355443424
Precipitation (in)2.21.61.61.92.42.13.84.94.74.54.33.3
Jan – JunJanFebMarAprMayJun
Avg high (°F)313239516269
Avg temp (°F)262733435361
Avg low (°F)202026354553
Precipitation (in)2.21.61.61.92.42.1
Jul – DecJulAugSepOctNovDec
Avg high (°F)767973604735
Avg temp (°F)687164524130
Avg low (°F)626355443424
Precipitation (in)3.84.94.74.54.33.3

Sky & atmosphere

JanFebMarAprMayJunJulAugSepOctNovDec
Cloud cover (%)908677697073777371738389
Relative humidity (%)929087828284868582818591
Wind speed (mph)6.87.76.64.63.12.22.12.43.23.84.75.8
Jan – JunJanFebMarAprMayJun
Cloud cover (%)908677697073
Relative humidity (%)929087828284
Wind speed (mph)6.87.76.64.63.12.2
Jul – DecJulAugSepOctNovDec
Cloud cover (%)777371738389
Relative humidity (%)868582818591
Wind speed (mph)2.12.43.23.84.75.8
Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Kyowa, about 20 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 →