Beihai climate — normals and trends
Beihai (China) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 23.2 °C and it receives 2,246 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 (28.7 °C on average) and the coldest is January (15.8 °C). Rainfall peaks in August.
Beihai averages 0 frost days, 32 hot days (≥ 30 °C) and 173 rainy days per year.
Beihai 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 33.4 °C (on 31 July 2020) and the coldest 4.4 °C (on 30 January 1977).
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
BeihaiGuangxi
- coords
- 21.48°, 109.12°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.2°C
Average daily high
24.8°C
Average daily low
21.9°C
Annual rainfall
2,246mm
Sunshine / day
8.7h
Mean relative humidity
82%
Average peak wind
23.8km/h
Seasonal range
12.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
32 d/yr
Rainy days (≥ 1 mm)
173 d/yr
Annual snowfall
0.0 cm
Average feels-like high
27.5 °C
Average feels-like low
22.9 °C
Average peak gust
33.4 km/h
Tropical nights (≥ 20 °C)
237 d/yr
Solar radiation
16.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.14 · 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
33.4 °C
31 July 2020
Coldest day
4.4 °C
30 January 1977
Wettest day
284 mm
26 August 1985
Windiest day
90.2 km/h
23 July 1980
Strongest gust
135.7 km/h
23 July 1980
Hottest feels-like
41.6 °C
20 July 2005
Coldest feels-like
-3.8 °C
30 January 1977
Sunniest day
13.0 h
21 June 1956
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 | 18.5 °C | +0.7 °C | 20 mm | -28 mm |
| Feb | 18.9 °C | +0.4 °C | 34 mm | -25 mm |
| Mar | 20.9 °C | -0.5 °C | 51 mm | -14 mm |
| Apr | 25.2 °C | +0.5 °C | 32 mm | -58 mm |
| May | 28.3 °C | +0.6 °C | 129 mm | -71 mm |
| Jun | 29.7 °C | +0.5 °C | 403 mm | +27 mm |
| Jul | 30.1 °C | +0.5 °C | 423 mm | +14 mm |
| Aug | 29.9 °C | +0.5 °C | 487 mm | +1 mm |
| Sep | 29.6 °C | +0.7 °C | 344 mm | +50 mm |
| Oct | 27.4 °C | +0.6 °C | 205 mm | +82 mm |
| Nov | 22.7 °C | -0.7 °C | 31 mm | -25 mm |
| Dec | 21.3 °C | +1.7 °C | 28 mm | -13 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 Beihai?
Beihai has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.2 °C and it receives 2,246 mm of precipitation per year.
What is the hottest day ever recorded in Beihai?
The hottest day measured in Beihai between 1940 and 2025 was 31 July 2020, reaching 33.4 °C.
What is the coldest day in Beihai?
The coldest day measured in Beihai between 1940 and 2025 was 30 January 1977, at 4.4 °C.
Does it snow in Beihai?
Almost never: Beihai sees virtually no snow, with about 0 frost days per year.
Has the climate of Beihai warmed?
Yes: Beihai warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Beihai?
The wettest day measured in Beihai between 1940 and 2025 was 26 August 1985, with 284 mm of rain in 24 hours.
What was the windiest day in Beihai?
The windiest day measured in Beihai between 1940 and 2025 was 23 July 1980, with winds reaching 90.2 km/h.
What is the warmest month in Beihai?
The warmest month in Beihai is July (28.7 °C on average); the coldest is January (15.8 °C).
How much does it rain in Beihai?
Beihai receives on average 2,246 mm of precipitation per year, spread over about 173 rainy days.
Is it sunny in Beihai?
Beihai gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
Are there tropical nights in Beihai?
Yes: Beihai has on average 237 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Beihai?
In Beihai, between 1940 and 2025, the highest apparent temperature reached 41.6 °C on 20 July 2005, and the lowest was -3.8 °C on 30 January 1977.
Compare Beihai with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Beihai