Fuefuki, Japan climate

Cfa Humid subtropical

Fuefuki has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 33°C, while the coldest is January averaging around −3°C at night. Precipitation totals about 1106 mm a year and is strongly seasonal — September alone averages 182 mm while December barely receives 35 mm.

☀️ Summers

Hot

Highs near 33°C in August.

❄️ Winters

Cold

Lows near −3°C in January.

🌧️ Rain

Wet

About 1106 mm of rain a year.

Wettest in September

⛅ 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

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Fuefuki climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	8	10	14	20	25	28	31	33	28	22	16	11
Avg temp (°C)	2	4	8	13	18	22	25	26	22	16	10	5
Avg low (°C)	−3	−2	2	7	13	17	21	22	18	12	5	−1
Precipitation (mm)	39	39	74	73	84	113	140	124	182	151	52	35

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	8	10	14	20	25	28
Avg temp (°C)	2	4	8	13	18	22
Avg low (°C)	−3	−2	2	7	13	17
Precipitation (mm)	39	39	74	73	84	113

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	31	33	28	22	16	11
Avg temp (°C)	25	26	22	16	10	5
Avg low (°C)	21	22	18	12	5	−1
Precipitation (mm)	140	124	182	151	52	35

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	50	55	62	66	72	83	78	69	73	67	55	49
Relative humidity (%)	80	78	78	77	78	82	83	83	85	85	83	81
Wind speed (m/s)	1.3	1.4	1.4	1.4	1.2	1.0	1.0	0.9	1.0	1.0	1.0	1.2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	50	55	62	66	72	83
Relative humidity (%)	80	78	78	77	78	82
Wind speed (m/s)	1.3	1.4	1.4	1.4	1.2	1.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	78	69	73	67	55	49
Relative humidity (%)	83	83	85	85	83	81
Wind speed (m/s)	1.0	0.9	1.0	1.0	1.0	1.2

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Katsunuma, about 8 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 →