Dongguan climate — normals and trends
Dongguan (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 22.7 °C and it receives 1,864 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (28.8 °C on average) and the coldest is January (14.7 °C). Rainfall peaks in June.
Dongguan averages 0 frost days, 122 hot days (≥ 30 °C) and 170 rainy days per year.
Dongguan has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.9 °C (on 22 August 2017) and the coldest 0.2 °C (on 12 January 1955).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
DongguanGuangdong
- coords
- 23.02°, 113.75°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.7°C
Average daily high
26.5°C
Average daily low
19.8°C
Annual rainfall
1,864mm
Sunshine / day
8.3h
Mean relative humidity
77%
Average peak wind
13.8km/h
Seasonal range
14.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
122 d/yr
Rainy days (≥ 1 mm)
170 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.2 °C
Average feels-like low
21.8 °C
Average peak gust
31.1 km/h
Tropical nights (≥ 20 °C)
204 d/yr
Solar radiation
14.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.65 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
37.9 °C
22 August 2017
Coldest day
0.2 °C
12 January 1955
Wettest day
289 mm
2 July 1961
Windiest day
57.0 km/h
16 September 2018
Strongest gust
136.8 km/h
16 September 2018
Hottest feels-like
47.2 °C
18 July 2019
Coldest feels-like
-4.7 °C
11 February 1957
Snowiest day
0.3 cm
24 January 2016
Sunniest day
13.0 h
11 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 21.5 °C | +2.5 °C | 2 mm | -28 mm |
| Feb | 20.9 °C | +1.0 °C | 18 mm | -35 mm |
| Mar | 23.9 °C | +0.8 °C | 63 mm | -33 mm |
| Apr | 27.7 °C | +1.3 °C | 73 mm | -109 mm |
| May | 29.7 °C | +0.3 °C | 238 mm | -75 mm |
| Jun | 31.6 °C | +0.7 °C | 339 mm | -18 mm |
| Jul | 33.4 °C | +1.3 °C | 310 mm | +67 mm |
| Aug | 32.3 °C | +0.4 °C | 362 mm | +86 mm |
| Sep | 32.6 °C | +1.5 °C | 277 mm | +98 mm |
| Oct | 30.0 °C | +1.4 °C | 65 mm | +1 mm |
| Nov | 24.8 °C | 0.0 °C | 7 mm | -33 mm |
| Dec | 23.5 °C | +2.9 °C | 15 mm | -17 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Dongguan?
Dongguan has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 22.7 °C and it receives 1,864 mm of precipitation per year.
What is the hottest day ever recorded in Dongguan?
The hottest day measured in Dongguan between 1940 and 2025 was 22 August 2017, reaching 37.9 °C.
What is the coldest day in Dongguan?
The coldest day measured in Dongguan between 1940 and 2025 was 12 January 1955, at 0.2 °C.
Does it snow in Dongguan?
Almost never: Dongguan sees virtually no snow, with about 0 frost days per year.
Has the climate of Dongguan warmed?
Yes: Dongguan warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dongguan?
The wettest day measured in Dongguan between 1940 and 2025 was 2 July 1961, with 289 mm of rain in 24 hours.
What was the windiest day in Dongguan?
The windiest day measured in Dongguan between 1940 and 2025 was 16 September 2018, with winds reaching 57.0 km/h.
What is the warmest month in Dongguan?
The warmest month in Dongguan is July (28.8 °C on average); the coldest is January (14.7 °C).
How much does it rain in Dongguan?
Dongguan receives on average 1,864 mm of precipitation per year, spread over about 170 rainy days.
Is it sunny in Dongguan?
Dongguan gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Dongguan?
The heaviest 24-hour snowfall measured in Dongguan between 1940 and 2025 was 24 January 2016, with 0.3 cm.
Are there tropical nights in Dongguan?
Yes: Dongguan has on average 204 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dongguan?
In Dongguan, between 1940 and 2025, the highest apparent temperature reached 47.2 °C on 18 July 2019, and the lowest was -4.7 °C on 11 February 1957.
Compare Dongguan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dongguan