Masuda, Japan climate

Cfa Humid subtropical

Masuda has a seasonal mild-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is August with an average daily high near 32°C, while the coldest is January averaging around 2°C at night. Around 1571 mm of precipitation falls each year, peaking in July (238 mm) and easing off in February (80 mm).

☀️ Summers

Hot

Highs near 32°C in August.

❄️ Winters

Chilly

Lows near 2°C in January.

🌧️ Rain

Very wet

About 1571 mm of rain a year.

Wettest in July

⛅ 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

Hours of sunshine per day

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

Masuda climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	9	10	14	19	24	26	31	32	28	23	18	12
Avg temp (°C)	6	6	9	14	18	22	27	28	23	18	13	8
Avg low (°C)	2	2	4	8	13	18	23	24	19	13	8	4
Precipitation (mm)	97	80	121	110	124	180	238	136	170	108	96	110

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	9	10	14	19	24	26
Avg temp (°C)	6	6	9	14	18	22
Avg low (°C)	2	2	4	8	13	18
Precipitation (mm)	97	80	121	110	124	180

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	31	32	28	23	18	12
Avg temp (°C)	27	28	23	18	13	8
Avg low (°C)	23	24	19	13	8	4
Precipitation (mm)	238	136	170	108	96	110

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	85	81	75	68	67	79	74	67	72	67	74	81
Relative humidity (%)	83	81	79	78	79	83	85	84	84	83	83	83
Wind speed (m/s)	1.3	1.3	1.2	0.9	0.7	0.6	0.6	0.7	0.8	0.9	1.0	1.1

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	85	81	75	68	67	79
Relative humidity (%)	83	81	79	78	79	83
Wind speed (m/s)	1.3	1.3	1.2	0.9	0.7	0.6

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	74	67	72	67	74	81
Relative humidity (%)	85	84	84	83	83	83
Wind speed (m/s)	0.6	0.7	0.8	0.9	1.0	1.1

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Masuda, about 2 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 →