Beidou climate — normals and trends

Q: What is the climate of Beidou?

Beidou has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.7 °C and it receives 2,176 mm of precipitation per year.

Q: What is the hottest day ever recorded in Beidou?

The hottest day measured in Beidou between 1940 and 2025 was 1 July 2004, reaching 35.8 °C.

Q: What is the coldest day in Beidou?

The coldest day measured in Beidou between 1940 and 2025 was 1 February 1970, at 2.3 °C.

Q: Does it snow in Beidou?

Almost never: Beidou sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Beidou warmed?

Yes: Beidou warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Beidou?

The wettest day measured in Beidou between 1940 and 2025 was 25 July 2024, with 446 mm of rain in 24 hours.

Q: What was the windiest day in Beidou?

The windiest day measured in Beidou between 1940 and 2025 was 27 September 1969, with winds reaching 60.8 km/h.

Q: What is the warmest month in Beidou?

The warmest month in Beidou is July (27.6 °C on average); the coldest is January (16.0 °C).

Q: How much does it rain in Beidou?

Beidou receives on average 2,176 mm of precipitation per year, spread over about 186 rainy days.

Q: Is it sunny in Beidou?

Beidou gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.

Beidou (Taiwan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 22.7 °C and it receives 2,176 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 (27.6 °C on average) and the coldest is January (16.0 °C). Rainfall peaks in August.

Beidou averages 0 frost days, 101 hot days (≥ 30 °C) and 186 rainy days per year.

Beidou has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.

The hottest day of the period reached 35.8 °C (on 1 July 2004) and the coldest 2.3 °C (on 1 February 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

BeidouTaiwan

coords: 23.87°, 120.52°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthAugustDriest monthJanuary

Mean daily temperature

22.7°C

Average daily high

26.6°C

Average daily low

19.2°C

Annual rainfall

2,176mm

Sunshine / day

10.0h

Mean relative humidity

81%

Average peak wind

12.9km/h

Seasonal range

11.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

101 d/yr

Rainy days (≥ 1 mm)

186 d/yr

Annual snowfall

0.0 cm

Average feels-like high

30.3 °C

Average feels-like low

21.1 °C

Average peak gust

29.8 km/h

Tropical nights (≥ 20 °C)

184 d/yr

Solar radiation

17.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.2 °C per decade · r² = 0.81 · p = < 0.001

19402025

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

35.8 °C

1 July 2004

Coldest day

2.3 °C

1 February 1970

Wettest day

446 mm

25 July 2024

Windiest day

60.8 km/h

27 September 1969

Strongest gust

154.1 km/h

27 September 1969

Hottest feels-like

43.3 °C

26 July 1969

Coldest feels-like

-1.7 °C

3 March 1986

Sunniest day

13.5 h

14 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.2 °C15 June 2025	7.1 °C13 January 2025	23.7 °C	2,207 mm	145
2024	33.9 °C23 June 2024	8.1 °C24 January 2024	24.1 °C	2,086 mm	151
2023	34.0 °C17 July 2023	6.6 °C28 January 2023	23.6 °C	2,074 mm	129
2022	33.9 °C27 August 2022	8.1 °C18 December 2022	23.2 °C	1,764 mm	123
2021	35.1 °C16 May 2021	7.6 °C10 January 2021	23.6 °C	1,591 mm	136
2020	34.6 °C23 July 2020	8.3 °C31 December 2020	23.9 °C	1,415 mm	147
2019	34.0 °C17 July 2019	11.0 °C9 December 2019	23.8 °C	2,022 mm	125
2018	33.7 °C28 May 2018	5.8 °C13 January 2018	23.5 °C	1,872 mm	121
2017	33.4 °C9 August 2017	9.3 °C10 February 2017	23.6 °C	1,861 mm	140
2016	33.4 °C1 June 2016	4.1 °C25 January 2016	23.4 °C	2,972 mm	142
2015	34.2 °C26 June 2015	7.1 °C23 January 2015	23.5 °C	2,268 mm	127
2014	34.0 °C9 July 2014	6.7 °C23 January 2014	23.4 °C	1,654 mm	133
2013	33.3 °C27 June 2013	8.5 °C27 December 2013	23.4 °C	2,615 mm	121
2012	33.3 °C14 May 2012	8.6 °C31 December 2012	23.4 °C	3,393 mm	121
2011	34.0 °C10 June 2011	7.9 °C17 January 2011	23.1 °C	2,014 mm	112
2010	33.8 °C9 August 2010	6.8 °C18 December 2010	23.3 °C	1,957 mm	121
2009	33.5 °C2 August 2009	6.2 °C11 January 2009	23.5 °C	2,338 mm	113
2008	34.1 °C28 May 2008	8.9 °C10 February 2008	23.4 °C	2,729 mm	148
2007	33.8 °C13 July 2007	8.8 °C29 January 2007	23.6 °C	2,754 mm	114
2006	33.8 °C6 July 2006	8.8 °C18 December 2006	23.7 °C	2,421 mm	120
2005	33.4 °C9 July 2005	5.6 °C5 March 2005	23.2 °C	2,707 mm	132
2004	35.8 °C1 July 2004	6.2 °C25 January 2004	23.1 °C	2,206 mm	120
2003	33.2 °C24 July 2003	9.5 °C6 January 2003	23.4 °C	1,769 mm	119
2002	33.2 °C26 July 2002	9.4 °C6 January 2002	23.5 °C	1,806 mm	124
2001	33.1 °C22 August 2001	9.9 °C22 December 2001	23.2 °C	3,122 mm	100
2000	32.8 °C31 August 2000	10.0 °C28 January 2000	23.1 °C	2,274 mm	100
1999	32.5 °C23 July 1999	4.9 °C22 December 1999	23.0 °C	1,886 mm	100
1998	33.3 °C20 July 1998	10.1 °C5 February 1998	23.6 °C	2,546 mm	121
1997	32.3 °C30 July 1997	8.1 °C12 January 1997	22.8 °C	2,138 mm	81
1996	33.5 °C21 July 1996	7.3 °C3 February 1996	22.7 °C	1,893 mm	110
1995	33.1 °C25 June 1995	7.0 °C6 February 1995	22.5 °C	1,807 mm	106
1994	33.1 °C13 July 1994	8.8 °C24 January 1994	23.2 °C	2,557 mm	113
1993	33.7 °C27 June 1993	5.8 °C28 January 1993	22.9 °C	1,776 mm	123
1992	32.6 °C17 June 1992	7.6 °C14 January 1992	22.4 °C	2,612 mm	89
1991	33.3 °C4 July 1991	6.6 °C29 December 1991	23.1 °C	1,619 mm	117
1990	33.1 °C8 August 1990	10.2 °C5 January 1990	23.0 °C	2,588 mm	94
1989	32.8 °C11 August 1989	8.2 °C12 February 1989	22.5 °C	2,470 mm	101
1988	33.3 °C7 May 1988	7.7 °C30 November 1988	22.6 °C	2,521 mm	115
1987	33.5 °C7 July 1987	6.5 °C4 February 1987	22.8 °C	1,685 mm	93
1986	33.1 °C16 August 1986	3.5 °C3 March 1986	22.4 °C	2,456 mm	99
1985	32.6 °C30 July 1985	5.9 °C17 December 1985	22.3 °C	2,430 mm	83
1984	32.5 °C22 August 1984	7.7 °C8 February 1984	22.1 °C	2,120 mm	103
1983	34.1 °C5 July 1983	9.0 °C31 December 1983	22.6 °C	2,105 mm	125
1982	33.1 °C17 July 1982	8.6 °C30 January 1982	22.5 °C	2,224 mm	93
1981	33.2 °C3 July 1981	6.0 °C14 January 1981	22.6 °C	2,729 mm	89
1980	34.0 °C25 July 1980	7.4 °C31 January 1980	22.8 °C	1,463 mm	117
1979	33.6 °C4 July 1979	8.0 °C1 February 1979	22.6 °C	2,561 mm	92
1978	33.5 °C25 August 1978	5.4 °C18 February 1978	22.7 °C	3,262 mm	115
1977	33.7 °C4 May 1977	6.6 °C31 January 1977	22.7 °C	2,711 mm	124
1976	32.6 °C22 July 1976	8.0 °C12 January 1976	22.2 °C	2,327 mm	108
1975	33.0 °C7 July 1975	7.2 °C24 December 1975	22.6 °C	2,535 mm	133
1974	32.8 °C8 August 1974	6.6 °C25 February 1974	22.5 °C	2,780 mm	97
1973	32.6 °C31 May 1973	2.7 °C25 December 1973	22.8 °C	2,366 mm	122
1972	32.6 °C27 June 1972	6.2 °C10 February 1972	22.3 °C	3,291 mm	91
1971	32.9 °C20 July 1971	4.7 °C10 January 1971	22.1 °C	1,953 mm	111
1970	33.4 °C27 June 1970	2.3 °C1 February 1970	22.3 °C	2,085 mm	116
1969	34.8 °C26 July 1969	6.9 °C6 February 1969	22.2 °C	2,031 mm	103
1968	32.9 °C18 July 1968	6.5 °C3 March 1968	21.9 °C	2,490 mm	89
1967	32.8 °C1 August 1967	3.1 °C17 January 1967	22.0 °C	2,041 mm	106
1966	31.8 °C15 August 1966	8.7 °C2 January 1966	22.3 °C	2,191 mm	41
1965	31.8 °C17 April 1965	5.6 °C9 January 1965	21.9 °C	1,686 mm	19
1964	32.2 °C7 August 1964	8.5 °C18 December 1964	22.3 °C	2,171 mm	68
1963	32.7 °C5 September 1963	3.8 °C27 January 1963	21.9 °C	2,184 mm	107
1962	33.7 °C27 May 1962	5.5 °C28 January 1962	21.9 °C	1,566 mm	88
1961	32.3 °C10 June 1961	6.6 °C19 January 1961	22.3 °C	2,249 mm	65
1960	32.4 °C10 July 1960	6.9 °C30 December 1960	22.7 °C	2,730 mm	101
1959	33.1 °C16 June 1959	4.5 °C17 January 1959	22.7 °C	1,756 mm	109
1958	32.8 °C8 July 1958	3.1 °C13 February 1958	22.4 °C	2,210 mm	125
1957	32.6 °C16 August 1957	6.4 °C12 February 1957	22.3 °C	1,753 mm	111
1956	33.3 °C7 July 1956	6.0 °C10 January 1956	22.2 °C	2,429 mm	123
1955	32.4 °C13 July 1955	3.6 °C22 February 1955	21.9 °C	1,662 mm	86
1954	33.3 °C25 May 1954	8.5 °C18 December 1954	22.6 °C	1,334 mm	126
1953	33.1 °C12 August 1953	8.4 °C21 February 1953	22.5 °C	2,025 mm	107
1952	32.2 °C4 July 1952	5.8 °C9 January 1952	22.5 °C	1,820 mm	84
1951	32.4 °C31 July 1951	6.5 °C15 December 1951	22.0 °C	2,317 mm	67
1950	32.5 °C19 July 1950	5.0 °C10 December 1950	21.8 °C	2,607 mm	54
1949	33.6 °C8 July 1949	5.6 °C17 January 1949	22.5 °C	1,649 mm	103
1948	32.0 °C4 July 1948	5.1 °C4 January 1948	21.9 °C	1,745 mm	70
1947	32.0 °C6 July 1947	8.9 °C29 January 1947	21.5 °C	2,240 mm	65
1946	32.3 °C12 May 1946	7.1 °C10 February 1946	22.1 °C	1,531 mm	59
1945	30.8 °C24 July 1945	7.6 °C19 December 1945	21.2 °C	2,052 mm	27
1944	31.6 °C7 April 1944	7.7 °C8 January 1944	21.7 °C	2,022 mm	10
1943	31.6 °C8 May 1943	6.1 °C13 January 1943	21.4 °C	1,094 mm	27
1942	31.5 °C11 August 1942	7.4 °C6 December 1942	21.7 °C	1,868 mm	24
1941	30.4 °C14 June 1941	5.6 °C5 February 1941	21.8 °C	2,342 mm	12
1940	30.2 °C13 July 1940	5.8 °C25 January 1940	21.1 °C	1,933 mm	5

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?

Year

Across the whole year

Average daily high

27.4 °C

+0.8 °C

Hot days (≥ 30 °C)

145 d/yr

+44

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2207 mm

+31 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	20.2 °C	-0.2 °C	51 mm	+1 mm
Feb	20.8 °C	-0.5 °C	96 mm	+30 mm
Mar	24.2 °C	+0.5 °C	97 mm	+9 mm
Apr	27.1 °C	+0.4 °C	99 mm	-28 mm
May	29.9 °C	+0.9 °C	208 mm	-33 mm
Jun	31.5 °C	+1.2 °C	382 mm	+44 mm
Jul	30.8 °C	-0.2 °C	635 mm	+308 mm
Aug	31.6 °C	+1.0 °C	253 mm	-154 mm
Sep	31.6 °C	+1.7 °C	174 mm	-121 mm
Oct	30.2 °C	+2.1 °C	118 mm	-9 mm
Nov	26.5 °C	+1.0 °C	61 mm	+2 mm
Dec	23.9 °C	+1.8 °C	35 mm	-16 mm

The year's extremes

Hottest day

34.2 °C

15 Jun 2025

Coldest day

7.1 °C

13 Jan 2025

Wettest day

98.1 mm

20 Jul 2025

Windiest day

40.0 km/h

13 Aug 2025

Strongest gust

103.3 km/h

13 Aug 2025

Hottest feels-like

40.8 °C

24 Aug 2025

Coldest feels-like

5.4 °C

13 Jan 2025

Sunniest day

13.2 h

15 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Beidou?

Beidou has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 22.7 °C and it receives 2,176 mm of precipitation per year.

What is the hottest day ever recorded in Beidou?

The hottest day measured in Beidou between 1940 and 2025 was 1 July 2004, reaching 35.8 °C.

What is the coldest day in Beidou?

The coldest day measured in Beidou between 1940 and 2025 was 1 February 1970, at 2.3 °C.

Does it snow in Beidou?

Almost never: Beidou sees virtually no snow, with about 0 frost days per year.

Has the climate of Beidou warmed?

Yes: Beidou warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Beidou?

The wettest day measured in Beidou between 1940 and 2025 was 25 July 2024, with 446 mm of rain in 24 hours.

What was the windiest day in Beidou?

The windiest day measured in Beidou between 1940 and 2025 was 27 September 1969, with winds reaching 60.8 km/h.

What is the warmest month in Beidou?

The warmest month in Beidou is July (27.6 °C on average); the coldest is January (16.0 °C).

How much does it rain in Beidou?

Beidou receives on average 2,176 mm of precipitation per year, spread over about 186 rainy days.

Is it sunny in Beidou?

Beidou gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.

Are there tropical nights in Beidou?

Yes: Beidou has on average 184 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Beidou?

In Beidou, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 26 July 1969, and the lowest was -1.7 °C on 3 March 1986.

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