Morioka, Japan climate

Cfa Humid subtropical

Morioka has a strongly seasonal cool-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 83°F, while the coldest is January averaging around 23°F at night. Precipitation totals about 50 inches a year and is strongly seasonal — July alone averages 7.8 inches while February barely receives 1.89 inches.

☀️ Summers

Warm

Highs near 83°F in August.

❄️ Winters

Cold

Lows near 23°F in January.

🌧️ Rain

Wet

About 50 in 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

Hours of sunshine per day

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

Morioka climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	36	38	46	58	69	75	81	83	76	64	52	40
Avg temp (°F)	29	30	37	48	58	66	72	74	67	55	43	33
Avg low (°F)	23	23	29	38	48	58	66	68	59	46	35	28
Precipitation (in)	1.9	1.9	3.2	3.4	4.2	4.3	7.8	7.3	6.0	4.3	3.4	2.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	36	38	46	58	69	75
Avg temp (°F)	29	30	37	48	58	66
Avg low (°F)	23	23	29	38	48	58
Precipitation (in)	1.9	1.9	3.2	3.4	4.2	4.3

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	81	83	76	64	52	40
Avg temp (°F)	72	74	67	55	43	33
Avg low (°F)	66	68	59	46	35	28
Precipitation (in)	7.8	7.3	6.0	4.3	3.4	2.8

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	67	67	70	69	71	76	80	73	74	68	67	70
Relative humidity (%)	95	95	88	82	81	83	86	86	87	86	89	92
Wind speed (mph)	1.7	2.4	2.0	0.9	0.2	0.1	0.1	0.1	0.1	0.2	0.2	0.6

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	67	67	70	69	71	76
Relative humidity (%)	95	95	88	82	81	83
Wind speed (mph)	1.7	2.4	2.0	0.9	0.2	0.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	80	73	74	68	67	70
Relative humidity (%)	86	86	87	86	89	92
Wind speed (mph)	0.1	0.1	0.1	0.2	0.2	0.6

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Morioka, about 1 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 →