Rizhao climate — normals and trends
Rizhao (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 13.1 °C and it receives 918 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 August (25.6 °C on average) and the coldest is January (0.1 °C). Rainfall peaks in July.
Rizhao averages 63 frost days, 6 hot days (≥ 30 °C) and 85 rainy days per year.
Rizhao has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 74 to 52 per year over the period.
The hottest day of the period reached 35.0 °C (on 15 July 2002) and the coldest -15.2 °C (on 7 January 2021).
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
RizhaoShandong
- coords
- 35.41°, 119.53°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.1°C
Average daily high
15.8°C
Average daily low
10.6°C
Annual rainfall
918mm
Sunshine / day
8.9h
Mean relative humidity
73%
Average peak wind
19.4km/h
Seasonal range
25.5°C
Frost days (< 0 °C)
63 d/yr
Hot days (≥ 30 °C)
6 d/yr
Rainy days (≥ 1 mm)
85 d/yr
Annual snowfall
11.5 cm
Average feels-like high
15.0 °C
Average feels-like low
8.7 °C
Average peak gust
32.9 km/h
Tropical nights (≥ 20 °C)
83 d/yr
Solar radiation
15.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.41 · 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
35.0 °C
15 July 2002
Coldest day
-15.2 °C
7 January 2021
Wettest day
210 mm
9 July 2024
Windiest day
62.4 km/h
2 August 1940
Strongest gust
111.6 km/h
2 August 1940
Hottest feels-like
41.9 °C
24 July 2017
Coldest feels-like
-23.4 °C
7 January 2021
Snowiest day
13.0 cm
12 February 1940
Sunniest day
14.0 h
18 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 | 5.7 °C | +2.6 °C | 2 mm | -14 mm |
| Feb | 5.2 °C | +0.8 °C | 5 mm | -18 mm |
| Mar | 11.6 °C | +2.9 °C | 68 mm | +35 mm |
| Apr | 17.7 °C | +3.4 °C | 36 mm | -17 mm |
| May | 21.1 °C | +1.5 °C | 48 mm | -23 mm |
| Jun | 26.3 °C | +2.7 °C | 115 mm | +13 mm |
| Jul | 30.2 °C | +3.3 °C | 39 mm | -193 mm |
| Aug | 30.2 °C | +2.6 °C | 142 mm | -37 mm |
| Sep | 25.6 °C | +1.3 °C | 219 mm | +110 mm |
| Oct | 18.8 °C | -0.3 °C | 175 mm | +125 mm |
| Nov | 14.4 °C | +2.1 °C | 15 mm | -21 mm |
| Dec | 7.4 °C | +1.8 °C | 20 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 Rizhao?
Rizhao has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 13.1 °C and it receives 918 mm of precipitation per year.
What is the hottest day ever recorded in Rizhao?
The hottest day measured in Rizhao between 1940 and 2025 was 15 July 2002, reaching 35.0 °C.
What is the coldest day in Rizhao?
The coldest day measured in Rizhao between 1940 and 2025 was 7 January 2021, at -15.2 °C.
Does it snow in Rizhao?
Yes. Rizhao gets on average 11.5 cm of snow per year and has around 63 frost days.
Has the climate of Rizhao warmed?
Yes: Rizhao warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rizhao?
The wettest day measured in Rizhao between 1940 and 2025 was 9 July 2024, with 210 mm of rain in 24 hours.
What was the windiest day in Rizhao?
The windiest day measured in Rizhao between 1940 and 2025 was 2 August 1940, with winds reaching 62.4 km/h.
What is the warmest month in Rizhao?
The warmest month in Rizhao is August (25.6 °C on average); the coldest is January (0.1 °C).
How much does it rain in Rizhao?
Rizhao receives on average 918 mm of precipitation per year, spread over about 85 rainy days.
Is it sunny in Rizhao?
Rizhao gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Rizhao?
The heaviest 24-hour snowfall measured in Rizhao between 1940 and 2025 was 12 February 1940, with 13.0 cm.
Are there tropical nights in Rizhao?
Yes: Rizhao has on average 83 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rizhao?
In Rizhao, between 1940 and 2025, the highest apparent temperature reached 41.9 °C on 24 July 2017, and the lowest was -23.4 °C on 7 January 2021.
Compare Rizhao with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rizhao