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Hakodate, Japan climate

Cfa Humid subtropical

Hakodate has a seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 79°F, while the coldest is January averaging around 21°F at night. Around 47 inches of precipitation falls each year, peaking in August (6.2 inches) and easing off in March (2.5 inches). Snowfall is heavy (120 inches of snow per year on average).

☀️ Summers
Warm
Highs near 79°F in August.
❄️ Winters
Cold
Lows near 21°F in January.
🌧️ Rain & snow
Wet
About 47 in of rain a year, plus 120 in of snow.
Snow falls through the winter months
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 split into rain and snow · 1991–2020 normals · hover a month for the exact figures TEMPERATURE °F 20°40°60°80° PRECIPITATION (in) 03.57 RainSnow 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: ~1.4 hours of sun/dayM: ~2.7 hours of sun/dayA: ~4.3 hours of sun/dayM: ~4.4 hours of sun/dayJ: ~4.1 hours of sun/dayJ: ~3.3 hours of sun/dayA: ~3.8 hours of sun/dayS: ~3.6 hours of sun/dayO: ~3.2 hours of sun/dayN: ~1.7 hours of sun/dayD: ~1.0 hours of sun/day JFMAMJJASOND Sun hours per day (est.)

Hakodate climate normals (1991–2020)

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°F)343542546369757974635038
Avg temp (°F)282935455461697266554332
Avg low (°F)212228374655636658463526
Precipitation (in)3.02.52.52.83.53.14.96.25.94.24.43.7
Snowfall (in)35.829.116.10.87.131.1
Jan – JunJanFebMarAprMayJun
Avg high (°F)343542546369
Avg temp (°F)282935455461
Avg low (°F)212228374655
Precipitation (in)3.02.52.52.83.53.1
Snowfall (in)35.829.116.10.8
Jul – DecJulAugSepOctNovDec
Avg high (°F)757974635038
Avg temp (°F)697266554332
Avg low (°F)636658463526
Precipitation (in)4.96.25.94.24.43.7
Snowfall (in)7.131.1

Sky & atmosphere

JanFebMarAprMayJunJulAugSepOctNovDec
Cloud cover (%)918677686973787270718289
Relative humidity (%)878580818385878683808286
Wind speed (mph)9.19.68.15.53.73.03.03.44.55.46.58.1
Jan – JunJanFebMarAprMayJun
Cloud cover (%)918677686973
Relative humidity (%)878580818385
Wind speed (mph)9.19.68.15.53.73.0
Jul – DecJulAugSepOctNovDec
Cloud cover (%)787270718289
Relative humidity (%)878683808286
Wind speed (mph)3.03.44.55.46.58.1
Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Hakodate, about 5 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 →