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Nanchang, China climate

Cfa Humid subtropical

Nanchang has a seasonal warm-temperate climate (Humid subtropical, Köppen Cfa). The hottest month is July with an average daily high near 93°F, while the coldest is January averaging around 38°F at night. Precipitation totals about 69 inches a year and is strongly seasonal — June alone averages 13.5 inches while October barely receives 1.96 inches.

☀️ Summers

Hot

Highs near 93°F in July.

About 54 days a year above 90 °F

❄️ Winters

Chilly

Lows near 38°F in January.

About 9 freezing nights a year

🌧️ Rain

Very wet

About 69 in of rain a year.

Wettest in June

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+1.3 °F vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Clear vs cloudy days

Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day counts

Nanchang climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	48	54	61	72	81	86	93	91	85	76	65	54
Avg temp (°F)	43	48	55	66	74	80	86	85	79	69	58	47
Avg low (°F)	38	42	48	59	68	74	79	79	72	63	52	41
Precipitation (in)	3.6	4.0	7.9	8.5	9.5	13.5	6.5	5.1	2.5	2.0	3.8	2.3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	48	54	61	72	81	86
Avg temp (°F)	43	48	55	66	74	80
Avg low (°F)	38	42	48	59	68	74
Precipitation (in)	3.6	4.0	7.9	8.5	9.5	13.5

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	93	91	85	76	65	54
Avg temp (°F)	86	85	79	69	58	47
Avg low (°F)	79	79	72	63	52	41
Precipitation (in)	6.5	5.1	2.5	2.0	3.8	2.3

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	13	13	17	16	16	16	11	10	7	7	9	9
Days with high ≥ 90°F (days)	—	—	0.0	0.4	3	7	19	17	6	0.6	—	—
Days with low ≤ 32°F (days)	5	2	0.1	—	—	—	—	—	—	—	0.1	2

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	13	13	17	16	16	16
Days with high ≥ 90°F (days)	—	—	0.0	0.4	3	7
Days with low ≤ 32°F (days)	5	2	0.1	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	11	10	7	7	9	9
Days with high ≥ 90°F (days)	19	17	6	0.6	—	—
Days with low ≤ 32°F (days)	—	—	—	—	0.1	2

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	71	74	78	77	77	81	72	68	62	58	59	58
Clear days (≤ 30% cloud)	6	4	3	3	3	2	3	4	8	10	10	10
Partly cloudy days (30–70%)	5	6	5	6	6	5	9	11	8	7	5	7
Cloudy days (≥ 70%)	20	19	23	21	22	23	19	16	14	15	15	15
Relative humidity (%)	76	77	79	80	80	84	84	83	78	73	74	73
Wind speed (mph)	5.3	5.6	5.5	5.3	4.8	4.7	4.6	4.4	5.1	5.5	5.1	5.3

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	71	74	78	77	77	81
Clear days (≤ 30% cloud)	6	4	3	3	3	2
Partly cloudy days (30–70%)	5	6	5	6	6	5
Cloudy days (≥ 70%)	20	19	23	21	22	23
Relative humidity (%)	76	77	79	80	80	84
Wind speed (mph)	5.3	5.6	5.5	5.3	4.8	4.7

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	72	68	62	58	59	58
Clear days (≤ 30% cloud)	3	4	8	10	10	10
Partly cloudy days (30–70%)	9	11	8	7	5	7
Cloudy days (≥ 70%)	19	16	14	15	15	15
Relative humidity (%)	84	83	78	73	74	73
Wind speed (mph)	4.6	4.4	5.1	5.5	5.1	5.3

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Nanchang, a weather station, about 11 km from the city centre. The underlying daily records come from NOAA's global station network.

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 →