Dongcheng climate — normals and trends
Dongcheng (China) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.7 °C and it receives 1,363 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 (29.0 °C on average) and the coldest is January (18.6 °C). Rainfall peaks in August.
Dongcheng averages 0 frost days, 173 hot days (≥ 30 °C) and 157 rainy days per year.
Dongcheng has warmed by +0.6 °C between 1940 and 2025, or +0.07 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.5 °C (on 30 May 2015) and the coldest 4.9 °C (on 30 December 1975).
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
DongchengHainan
- coords
- 19.71°, 109.46°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.7°C
Average daily high
28.8°C
Average daily low
21.7°C
Annual rainfall
1,363mm
Sunshine / day
9.3h
Mean relative humidity
79%
Average peak wind
16.7km/h
Seasonal range
10.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
173 d/yr
Rainy days (≥ 1 mm)
157 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.3 °C
Average feels-like low
24.2 °C
Average peak gust
35.2 km/h
Tropical nights (≥ 20 °C)
249 d/yr
Solar radiation
17.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.11 · p = 0.002
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
40.5 °C
30 May 2015
Coldest day
4.9 °C
30 December 1975
Wettest day
283 mm
28 August 1994
Windiest day
72.6 km/h
25 September 1955
Strongest gust
134.3 km/h
25 September 1955
Hottest feels-like
46.0 °C
3 August 1998
Coldest feels-like
0.5 °C
24 January 2016
Sunniest day
12.9 h
20 May 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 | 22.8 °C | 0.0 °C | 4 mm | -10 mm |
| Feb | 23.2 °C | -1.4 °C | 8 mm | -8 mm |
| Mar | 25.9 °C | -2.2 °C | 19 mm | -13 mm |
| Apr | 30.8 °C | -0.1 °C | 57 mm | -27 mm |
| May | 32.6 °C | +0.2 °C | 171 mm | 0 mm |
| Jun | 33.0 °C | +0.1 °C | 221 mm | +38 mm |
| Jul | 32.1 °C | -0.9 °C | 517 mm | +337 mm |
| Aug | 32.3 °C | +0.5 °C | 194 mm | -64 mm |
| Sep | 31.3 °C | +0.7 °C | 198 mm | -18 mm |
| Oct | 28.9 °C | +0.3 °C | 363 mm | +225 mm |
| Nov | 25.0 °C | -1.1 °C | 25 mm | -24 mm |
| Dec | 25.1 °C | +1.8 °C | 22 mm | -2 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 Dongcheng?
Dongcheng has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.7 °C and it receives 1,363 mm of precipitation per year.
What is the hottest day ever recorded in Dongcheng?
The hottest day measured in Dongcheng between 1940 and 2025 was 30 May 2015, reaching 40.5 °C.
What is the coldest day in Dongcheng?
The coldest day measured in Dongcheng between 1940 and 2025 was 30 December 1975, at 4.9 °C.
Does it snow in Dongcheng?
Almost never: Dongcheng sees virtually no snow, with about 0 frost days per year.
Has the climate of Dongcheng warmed?
Yes: Dongcheng warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Dongcheng?
The wettest day measured in Dongcheng between 1940 and 2025 was 28 August 1994, with 283 mm of rain in 24 hours.
What was the windiest day in Dongcheng?
The windiest day measured in Dongcheng between 1940 and 2025 was 25 September 1955, with winds reaching 72.6 km/h.
What is the warmest month in Dongcheng?
The warmest month in Dongcheng is July (29.0 °C on average); the coldest is January (18.6 °C).
How much does it rain in Dongcheng?
Dongcheng receives on average 1,363 mm of precipitation per year, spread over about 157 rainy days.
Is it sunny in Dongcheng?
Dongcheng gets on average 9.3 hours of sunshine per day, roughly 3,395 hours per year over 1940-2025.
Are there tropical nights in Dongcheng?
Yes: Dongcheng has on average 249 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Dongcheng?
In Dongcheng, between 1940 and 2025, the highest apparent temperature reached 46.0 °C on 3 August 1998, and the lowest was 0.5 °C on 24 January 2016.
Compare Dongcheng with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Dongcheng