Haizhou climate — normals and trends
Haizhou (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 14.3 °C and it receives 990 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 (26.8 °C on average) and the coldest is January (0.3 °C). Rainfall peaks in July.
Haizhou averages 77 frost days, 53 hot days (≥ 30 °C) and 93 rainy days per year.
Haizhou has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.
The number of frost days there went from about 89 to 65 per year over the period.
The hottest day of the period reached 40.7 °C (on 8 August 1946) and the coldest -20.2 °C (on 11 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
HaizhouJiangsu
- coords
- 34.58°, 119.13°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.3°C
Average daily high
18.9°C
Average daily low
10.1°C
Annual rainfall
990mm
Sunshine / day
8.6h
Mean relative humidity
72%
Average peak wind
15.3km/h
Seasonal range
26.5°C
Frost days (< 0 °C)
77 d/yr
Hot days (≥ 30 °C)
53 d/yr
Rainy days (≥ 1 mm)
93 d/yr
Annual snowfall
10.2 cm
Average feels-like high
18.4 °C
Average feels-like low
9.0 °C
Average peak gust
32.0 km/h
Tropical nights (≥ 20 °C)
82 d/yr
Solar radiation
15.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.35 · 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
40.7 °C
8 August 1946
Coldest day
-20.2 °C
11 January 1955
Wettest day
162 mm
21 July 1983
Windiest day
45.7 km/h
26 April 1983
Strongest gust
87.5 km/h
23 June 2016
Hottest feels-like
46.7 °C
4 August 2024
Coldest feels-like
-25.6 °C
11 January 1955
Snowiest day
15.9 cm
16 February 1981
Sunniest day
14.0 h
21 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 | 8.2 °C | +3.4 °C | 3 mm | -17 mm |
| Feb | 8.6 °C | +1.6 °C | 5 mm | -23 mm |
| Mar | 16.1 °C | +3.4 °C | 48 mm | +7 mm |
| Apr | 24.0 °C | +4.5 °C | 23 mm | -33 mm |
| May | 27.4 °C | +2.4 °C | 28 mm | -48 mm |
| Jun | 31.1 °C | +2.2 °C | 162 mm | +46 mm |
| Jul | 34.1 °C | +3.7 °C | 47 mm | -220 mm |
| Aug | 32.4 °C | +2.4 °C | 194 mm | +23 mm |
| Sep | 26.8 °C | +0.9 °C | 305 mm | +190 mm |
| Oct | 20.5 °C | -0.4 °C | 155 mm | +107 mm |
| Nov | 16.6 °C | +2.5 °C | 16 mm | -20 mm |
| Dec | 9.7 °C | +2.4 °C | 16 mm | -4 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 Haizhou?
Haizhou has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 14.3 °C and it receives 990 mm of precipitation per year.
What is the hottest day ever recorded in Haizhou?
The hottest day measured in Haizhou between 1940 and 2025 was 8 August 1946, reaching 40.7 °C.
What is the coldest day in Haizhou?
The coldest day measured in Haizhou between 1940 and 2025 was 11 January 1955, at -20.2 °C.
Does it snow in Haizhou?
Yes. Haizhou gets on average 10.2 cm of snow per year and has around 77 frost days.
Has the climate of Haizhou warmed?
Yes: Haizhou warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Haizhou?
The wettest day measured in Haizhou between 1940 and 2025 was 21 July 1983, with 162 mm of rain in 24 hours.
What was the windiest day in Haizhou?
The windiest day measured in Haizhou between 1940 and 2025 was 26 April 1983, with winds reaching 45.7 km/h.
What is the warmest month in Haizhou?
The warmest month in Haizhou is July (26.8 °C on average); the coldest is January (0.3 °C).
How much does it rain in Haizhou?
Haizhou receives on average 990 mm of precipitation per year, spread over about 93 rainy days.
Is it sunny in Haizhou?
Haizhou gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Haizhou?
The heaviest 24-hour snowfall measured in Haizhou between 1940 and 2025 was 16 February 1981, with 15.9 cm.
Are there tropical nights in Haizhou?
Yes: Haizhou has on average 82 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Haizhou?
In Haizhou, between 1940 and 2025, the highest apparent temperature reached 46.7 °C on 4 August 2024, and the lowest was -25.6 °C on 11 January 1955.
Compare Haizhou with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Haizhou