Wenchang climate — normals and trends
Wenchang (China) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.8 °C and it receives 1,492 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 (19.4 °C). Rainfall peaks in August.
Wenchang averages 0 frost days, 134 hot days (≥ 30 °C) and 187 rainy days per year.
Wenchang has warmed by +0.9 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.4 °C (on 20 July 2005) and the coldest 8.5 °C (on 29 December 1982).
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
WenchangHainan
- coords
- 19.55°, 110.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.8°C
Average daily high
27.8°C
Average daily low
22.8°C
Annual rainfall
1,492mm
Sunshine / day
9.5h
Mean relative humidity
82%
Average peak wind
20.4km/h
Seasonal range
9.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
134 d/yr
Rainy days (≥ 1 mm)
187 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.0 °C
Average feels-like low
25.3 °C
Average peak gust
39.2 km/h
Tropical nights (≥ 20 °C)
279 d/yr
Solar radiation
17.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.32 · 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
38.4 °C
20 July 2005
Coldest day
8.5 °C
29 December 1982
Wettest day
216 mm
16 August 1963
Windiest day
81.6 km/h
26 September 2005
Strongest gust
143.3 km/h
26 September 2005
Hottest feels-like
44.2 °C
29 July 1968
Coldest feels-like
3.4 °C
24 January 2016
Sunniest day
13.0 h
25 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 | 22.0 °C | -0.2 °C | 20 mm | -7 mm |
| Feb | 22.5 °C | -0.7 °C | 18 mm | -16 mm |
| Mar | 25.0 °C | -0.8 °C | 25 mm | -21 mm |
| Apr | 28.7 °C | 0.0 °C | 59 mm | -11 mm |
| May | 31.3 °C | +0.2 °C | 151 mm | -4 mm |
| Jun | 32.3 °C | +0.6 °C | 223 mm | +42 mm |
| Jul | 32.3 °C | +0.3 °C | 336 mm | +163 mm |
| Aug | 31.4 °C | 0.0 °C | 240 mm | -8 mm |
| Sep | 30.8 °C | +0.6 °C | 265 mm | +21 mm |
| Oct | 28.6 °C | +0.5 °C | 351 mm | +157 mm |
| Nov | 25.2 °C | -0.5 °C | 80 mm | +0 mm |
| Dec | 24.4 °C | +1.4 °C | 27 mm | -14 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 Wenchang?
Wenchang has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.8 °C and it receives 1,492 mm of precipitation per year.
What is the hottest day ever recorded in Wenchang?
The hottest day measured in Wenchang between 1940 and 2025 was 20 July 2005, reaching 38.4 °C.
What is the coldest day in Wenchang?
The coldest day measured in Wenchang between 1940 and 2025 was 29 December 1982, at 8.5 °C.
Does it snow in Wenchang?
Almost never: Wenchang sees virtually no snow, with about 0 frost days per year.
Has the climate of Wenchang warmed?
Yes: Wenchang warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Wenchang?
The wettest day measured in Wenchang between 1940 and 2025 was 16 August 1963, with 216 mm of rain in 24 hours.
What was the windiest day in Wenchang?
The windiest day measured in Wenchang between 1940 and 2025 was 26 September 2005, with winds reaching 81.6 km/h.
What is the warmest month in Wenchang?
The warmest month in Wenchang is July (28.8 °C on average); the coldest is January (19.4 °C).
How much does it rain in Wenchang?
Wenchang receives on average 1,492 mm of precipitation per year, spread over about 187 rainy days.
Is it sunny in Wenchang?
Wenchang gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
Are there tropical nights in Wenchang?
Yes: Wenchang has on average 279 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Wenchang?
In Wenchang, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 29 July 1968, and the lowest was 3.4 °C on 24 January 2016.
Compare Wenchang with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Wenchang