Wenzhou, China climate

Cfa Humid subtropical

Wenzhou has a seasonal warm-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 4°C at night. Precipitation totals about 1679 mm a year and is strongly seasonal — June alone averages 330 mm while December barely receives 50 mm.

☀️ Summers

Hot

Highs near 32°C in August.

About 41 days a year above 32 °C

❄️ Winters

Chilly

Lows near 4°C in January.

About 3 freezing nights a year

🌧️ Rain

Very wet

About 1679 mm of rain a year.

Wettest in June

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+0.2 °C 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

Wenzhou climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	13	13	16	21	26	29	32	32	29	25	21	16
Avg temp (°C)	8	9	12	17	22	26	29	29	26	21	16	11
Avg low (°C)	4	5	8	13	18	22	25	25	22	16	11	6
Precipitation (mm)	68	91	192	153	171	330	145	199	141	76	63	50

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	13	13	16	21	26	29
Avg temp (°C)	8	9	12	17	22	26
Avg low (°C)	4	5	8	13	18	22
Precipitation (mm)	68	91	192	153	171	330

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	32	32	29	25	21	16
Avg temp (°C)	29	29	26	21	16	11
Avg low (°C)	25	25	22	16	11	6
Precipitation (mm)	145	199	141	76	63	50

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	10	15	14	13	14	9	10	8	7	7	8
Days with high ≥ 32°C (days)	—	—	—	—	1	5	15	15	4	0.2	—	—
Days with low ≤ 0°C (days)	2	0.5	—	—	—	—	—	—	—	—	—	0.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	10	10	15	14	13	14
Days with high ≥ 32°C (days)	—	—	—	—	1	5
Days with low ≤ 0°C (days)	2	0.5	—	—	—	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	9	10	8	7	7	8
Days with high ≥ 32°C (days)	15	15	4	0.2	—	—
Days with low ≤ 0°C (days)	—	—	—	—	—	0.8

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	65	70	73	75	76	83	69	66	67	57	61	55
Clear days (≤ 30% cloud)	7	5	5	3	4	2	4	4	5	9	8	10
Partly cloudy days (30–70%)	7	6	7	7	6	5	10	12	9	9	7	7
Cloudy days (≥ 70%)	18	17	20	20	22	24	17	15	16	13	15	14
Relative humidity (%)	80	80	81	82	84	87	87	86	84	81	81	79
Wind speed (km/h)	8.7	8.5	8.1	7.3	6.9	7.1	7.9	8.2	8.6	8.6	8.2	8.8

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	65	70	73	75	76	83
Clear days (≤ 30% cloud)	7	5	5	3	4	2
Partly cloudy days (30–70%)	7	6	7	7	6	5
Cloudy days (≥ 70%)	18	17	20	20	22	24
Relative humidity (%)	80	80	81	82	84	87
Wind speed (km/h)	8.7	8.5	8.1	7.3	6.9	7.1

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	69	66	67	57	61	55
Clear days (≤ 30% cloud)	4	4	5	9	8	10
Partly cloudy days (30–70%)	10	12	9	9	7	7
Cloudy days (≥ 70%)	17	15	16	13	15	14
Relative humidity (%)	87	86	84	81	81	79
Wind speed (km/h)	7.9	8.2	8.6	8.6	8.2	8.8

Methodology & sources

Temperature — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

Precipitation — 1991–2020 normals computed from 9 years of daily observations at Wenzhou, a weather station, about 2 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 →