Weihai climate — normals and trends
Weihai (China) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.1 °C and it receives 804 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 (24.7 °C on average) and the coldest is January (-0.1 °C). Rainfall peaks in July.
Weihai averages 51 frost days, 1 hot days (≥ 30 °C) and 83 rainy days per year.
Weihai has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The number of frost days there went from about 62 to 40 per year over the period.
The hottest day of the period reached 32.3 °C (on 19 August 1959) and the coldest -11.1 °C (on 4 January 1970).
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
WeihaiShandong
- coords
- 37.51°, 122.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.1°C
Average daily high
13.8°C
Average daily low
10.8°C
Annual rainfall
804mm
Sunshine / day
9.1h
Mean relative humidity
75%
Average peak wind
28.1km/h
Seasonal range
24.8°C
Frost days (< 0 °C)
51 d/yr
Hot days (≥ 30 °C)
1 d/yr
Rainy days (≥ 1 mm)
83 d/yr
Annual snowfall
40.0 cm
Average feels-like high
12.1 °C
Average feels-like low
7.4 °C
Average peak gust
38.9 km/h
Tropical nights (≥ 20 °C)
84 d/yr
Solar radiation
15.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.31 · 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
32.3 °C
19 August 1959
Coldest day
-11.1 °C
4 January 1970
Wettest day
178 mm
5 August 1960
Windiest day
87.2 km/h
28 July 1960
Strongest gust
132.8 km/h
28 July 1960
Hottest feels-like
39.2 °C
30 July 2010
Coldest feels-like
-21.4 °C
15 January 1958
Snowiest day
16.2 cm
1 December 1990
Sunniest day
14.0 h
26 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 | 2.9 °C | +1.4 °C | 18 mm | -6 mm |
| Feb | 2.2 °C | +0.2 °C | 20 mm | +1 mm |
| Mar | 7.3 °C | +1.9 °C | 38 mm | +12 mm |
| Apr | 13.0 °C | +2.1 °C | 38 mm | -13 mm |
| May | 17.8 °C | +1.3 °C | 48 mm | -18 mm |
| Jun | 23.3 °C | +2.0 °C | 112 mm | +31 mm |
| Jul | 27.8 °C | +2.9 °C | 51 mm | -121 mm |
| Aug | 28.1 °C | +2.2 °C | 222 mm | +78 mm |
| Sep | 24.6 °C | +1.8 °C | 265 mm | +173 mm |
| Oct | 18.0 °C | +0.2 °C | 118 mm | +72 mm |
| Nov | 13.0 °C | +1.7 °C | 10 mm | -36 mm |
| Dec | 6.0 °C | +1.2 °C | 30 mm | -8 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 Weihai?
Weihai has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 12.1 °C and it receives 804 mm of precipitation per year.
What is the hottest day ever recorded in Weihai?
The hottest day measured in Weihai between 1940 and 2025 was 19 August 1959, reaching 32.3 °C.
What is the coldest day in Weihai?
The coldest day measured in Weihai between 1940 and 2025 was 4 January 1970, at -11.1 °C.
Does it snow in Weihai?
Yes. Weihai gets on average 40.0 cm of snow per year and has around 51 frost days.
Has the climate of Weihai warmed?
Yes: Weihai warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Weihai?
The wettest day measured in Weihai between 1940 and 2025 was 5 August 1960, with 178 mm of rain in 24 hours.
What was the windiest day in Weihai?
The windiest day measured in Weihai between 1940 and 2025 was 28 July 1960, with winds reaching 87.2 km/h.
What is the warmest month in Weihai?
The warmest month in Weihai is August (24.7 °C on average); the coldest is January (-0.1 °C).
How much does it rain in Weihai?
Weihai receives on average 804 mm of precipitation per year, spread over about 83 rainy days.
Is it sunny in Weihai?
Weihai gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.
What is the biggest single-day snowfall in Weihai?
The heaviest 24-hour snowfall measured in Weihai between 1940 and 2025 was 1 December 1990, with 16.2 cm.
Are there tropical nights in Weihai?
Yes: Weihai has on average 84 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Weihai?
In Weihai, between 1940 and 2025, the highest apparent temperature reached 39.2 °C on 30 July 2010, and the lowest was -21.4 °C on 15 January 1958.
Compare Weihai with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Weihai