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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 26°C, while the coldest is January averaging around −7°C at night. Around 946 mm of precipitation falls each year, peaking in August (124 mm) and easing off in March (41 mm).

☀️ Summers
Warm
Highs near 26°C in August.
❄️ Winters
Very cold
Lows near −7°C in January.
🌧️ Rain
Moderate rainfall
About 946 mm 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 °C -10°10°20°30° PRECIPITATION (mm) 065130 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 (°C)−1041117212526231682
Avg temp (°C)−3−3161216202118115−1
Avg low (°C)−7−7−3271216171371−4
Precipitation (mm)5641414861529612411911311084
Jan – JunJanFebMarAprMayJun
Avg high (°C)−104111721
Avg temp (°C)−3−3161216
Avg low (°C)−7−7−32712
Precipitation (mm)564141486152
Jul – DecJulAugSepOctNovDec
Avg high (°C)2526231682
Avg temp (°C)202118115−1
Avg low (°C)16171371−4
Precipitation (mm)9612411911311084

Sky & atmosphere

JanFebMarAprMayJunJulAugSepOctNovDec
Cloud cover (%)908677697073777371738389
Relative humidity (%)929087828284868582818591
Wind speed (km/h)11.012.310.67.54.93.53.33.95.16.27.69.4
Jan – JunJanFebMarAprMayJun
Cloud cover (%)908677697073
Relative humidity (%)929087828284
Wind speed (km/h)11.012.310.67.54.93.5
Jul – DecJulAugSepOctNovDec
Cloud cover (%)777371738389
Relative humidity (%)868582818591
Wind speed (km/h)3.33.95.16.27.69.4
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 →