Xuân Mai climate — normals and trends

Q: What is the climate of Xuân Mai?

Xuân Mai has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.5 °C and it receives 1,807 mm of precipitation per year.

Q: What is the hottest day ever recorded in Xuân Mai?

The hottest day measured in Xuân Mai between 1940 and 2025 was 3 June 2017, reaching 41.3 °C.

Q: What is the coldest day in Xuân Mai?

The coldest day measured in Xuân Mai between 1940 and 2025 was 2 January 1974, at 3.8 °C.

Q: Does it snow in Xuân Mai?

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

Q: Has the climate of Xuân Mai warmed?

Yes: Xuân Mai warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Xuân Mai?

The wettest day measured in Xuân Mai between 1940 and 2025 was 20 August 1980, with 206 mm of rain in 24 hours.

Q: What was the windiest day in Xuân Mai?

The windiest day measured in Xuân Mai between 1940 and 2025 was 7 September 2024, with winds reaching 39.8 km/h.

Q: What is the warmest month in Xuân Mai?

The warmest month in Xuân Mai is June (28.8 °C on average); the coldest is January (16.4 °C).

Q: How much does it rain in Xuân Mai?

Xuân Mai receives on average 1,807 mm of precipitation per year, spread over about 172 rainy days.

Q: Is it sunny in Xuân Mai?

Xuân Mai gets on average 6.8 hours of sunshine per day, roughly 2,482 hours per year over 1940-2025.

Xuân Mai (Vietnam) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 23.5 °C and it receives 1,807 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 June (28.8 °C on average) and the coldest is January (16.4 °C). Rainfall peaks in August.

Xuân Mai averages 0 frost days, 142 hot days (≥ 30 °C) and 172 rainy days per year.

Xuân Mai has warmed by +1.2 °C between 1940 and 2025, or +0.14 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.3 °C (on 3 June 2017) and the coldest 3.8 °C (on 2 January 1974).

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

Xuân MaiHanoi

coords: 20.90°, 105.58°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJuneColdest monthJanuaryWettest monthAugustDriest monthDecember

Mean daily temperature

23.5°C

Average daily high

27.3°C

Average daily low

20.8°C

Annual rainfall

1,807mm

Sunshine / day

6.8h

Mean relative humidity

82%

Average peak wind

9.7km/h

Seasonal range

12.4°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

142 d/yr

Rainy days (≥ 1 mm)

172 d/yr

Annual snowfall

0.0 cm

Average feels-like high

31.1 °C

Average feels-like low

23.9 °C

Average peak gust

25.7 km/h

Tropical nights (≥ 20 °C)

223 d/yr

Solar radiation

13.4 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.2 °C

since 1940

+0.1 °C per decade · r² = 0.39 · 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

41.3 °C

3 June 2017

Coldest day

3.8 °C

2 January 1974

Wettest day

206 mm

20 August 1980

Windiest day

39.8 km/h

7 September 2024

Strongest gust

104.0 km/h

23 July 1980

Hottest feels-like

47.3 °C

22 May 2023

Coldest feels-like

1.6 °C

2 January 1974

Sunniest day

13.1 h

14 June 1981

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	39.2 °C1 June 2025	7.7 °C13 January 2025	24.1 °C	2,222 mm	159
2024	39.9 °C27 April 2024	8.4 °C24 January 2024	24.8 °C	2,349 mm	178
2023	39.5 °C17 May 2023	7.9 °C31 January 2023	24.7 °C	1,616 mm	167
2022	37.8 °C4 June 2022	8.9 °C21 February 2022	23.9 °C	1,948 mm	151
2021	40.0 °C3 June 2021	8.2 °C13 January 2021	24.5 °C	1,658 mm	165
2020	40.4 °C21 May 2020	10.3 °C31 January 2020	24.4 °C	2,097 mm	145
2019	39.7 °C19 May 2019	8.7 °C8 December 2019	24.8 °C	1,789 mm	168
2018	38.6 °C4 July 2018	8.9 °C30 January 2018	24.3 °C	2,124 mm	157
2017	41.3 °C3 June 2017	8.8 °C20 December 2017	24.1 °C	2,315 mm	142
2016	38.8 °C2 June 2016	6.0 °C24 January 2016	24.4 °C	1,709 mm	175
2015	39.7 °C28 May 2015	9.1 °C15 January 2015	24.8 °C	1,761 mm	180
2014	39.5 °C22 May 2014	5.4 °C23 January 2014	23.9 °C	1,639 mm	157
2013	38.6 °C16 May 2013	6.4 °C20 December 2013	23.8 °C	1,880 mm	149
2012	39.2 °C1 May 2012	8.8 °C26 January 2012	23.8 °C	1,715 mm	165
2011	37.6 °C7 July 2011	8.1 °C11 January 2011	22.7 °C	1,606 mm	125
2010	38.8 °C19 May 2010	9.4 °C19 February 2010	24.3 °C	2,052 mm	167
2009	38.3 °C8 June 2009	7.6 °C12 January 2009	24.2 °C	1,589 mm	167
2008	38.3 °C8 April 2008	7.3 °C1 February 2008	23.1 °C	1,850 mm	143
2007	39.1 °C1 April 2007	7.6 °C29 January 2007	24.0 °C	1,425 mm	145
2006	38.7 °C11 April 2006	8.3 °C23 December 2006	24.0 °C	1,426 mm	151
2005	37.8 °C30 April 2005	8.3 °C19 December 2005	23.6 °C	1,747 mm	147
2004	37.8 °C3 July 2004	7.7 °C9 February 2004	23.6 °C	1,374 mm	142
2003	40.4 °C6 May 2003	6.5 °C7 January 2003	24.5 °C	1,424 mm	172
2002	38.0 °C21 May 2002	8.5 °C27 December 2002	24.0 °C	1,642 mm	162
2001	37.7 °C20 April 2001	7.9 °C24 December 2001	23.7 °C	1,853 mm	133
2000	36.9 °C26 May 2000	8.7 °C2 February 2000	23.6 °C	1,668 mm	134
1999	36.3 °C27 July 1999	4.4 °C24 December 1999	23.8 °C	1,594 mm	147
1998	39.2 °C15 June 1998	9.8 °C20 January 1998	24.5 °C	1,696 mm	166
1997	39.1 °C8 June 1997	9.1 °C12 January 1997	23.8 °C	1,806 mm	135
1996	38.6 °C6 May 1996	6.8 °C21 February 1996	23.2 °C	2,263 mm	138
1995	38.9 °C20 May 1995	6.7 °C31 December 1995	23.3 °C	1,691 mm	139
1994	39.9 °C2 May 1994	9.8 °C22 January 1994	23.8 °C	2,295 mm	128
1993	37.6 °C1 June 1993	6.0 °C31 January 1993	23.6 °C	1,562 mm	148
1992	37.9 °C4 July 1992	9.4 °C17 January 1992	23.3 °C	1,685 mm	139
1991	37.1 °C24 May 1991	8.8 °C28 December 1991	24.0 °C	1,379 mm	157
1990	38.7 °C22 April 1990	8.7 °C2 February 1990	23.8 °C	2,152 mm	137
1989	37.5 °C18 June 1989	9.2 °C5 February 1989	23.3 °C	2,189 mm	139
1988	39.6 °C21 May 1988	8.2 °C19 February 1988	23.3 °C	1,573 mm	140
1987	39.9 °C21 May 1987	7.7 °C8 December 1987	24.4 °C	1,872 mm	169
1986	38.3 °C2 July 1986	7.2 °C11 January 1986	23.4 °C	2,045 mm	137
1985	38.8 °C27 May 1985	8.6 °C25 December 1985	23.0 °C	1,904 mm	149
1984	39.1 °C4 April 1984	7.3 °C10 January 1984	23.0 °C	1,633 mm	130
1983	39.4 °C19 June 1983	7.3 °C29 December 1983	23.3 °C	1,824 mm	163
1982	38.3 °C11 May 1982	5.2 °C28 December 1982	23.5 °C	2,052 mm	137
1981	37.8 °C25 August 1981	8.2 °C21 December 1981	23.8 °C	2,152 mm	159
1980	38.4 °C31 May 1980	7.5 °C8 February 1980	23.6 °C	2,230 mm	140
1979	37.6 °C15 July 1979	9.9 °C16 January 1979	23.7 °C	1,703 mm	148
1978	37.4 °C25 June 1978	8.3 °C22 January 1978	23.2 °C	2,600 mm	122
1977	38.9 °C30 May 1977	6.1 °C31 January 1977	23.2 °C	1,678 mm	146
1976	37.4 °C16 June 1976	6.5 °C1 January 1976	22.8 °C	1,734 mm	128
1975	36.9 °C30 July 1975	4.0 °C31 December 1975	23.3 °C	2,445 mm	145
1974	37.9 °C5 May 1974	3.8 °C2 January 1974	23.2 °C	1,974 mm	146
1973	39.1 °C20 May 1973	5.1 °C31 December 1973	24.1 °C	2,439 mm	153
1972	39.6 °C10 May 1972	7.6 °C10 February 1972	23.5 °C	2,066 mm	163
1971	37.5 °C4 June 1971	5.8 °C10 January 1971	23.0 °C	2,146 mm	132
1970	38.4 °C9 May 1970	9.7 °C31 January 1970	23.2 °C	1,626 mm	134
1969	39.0 °C13 May 1969	8.1 °C10 December 1969	23.6 °C	1,499 mm	168
1968	37.7 °C24 May 1968	6.0 °C14 February 1968	23.5 °C	1,779 mm	137
1967	39.2 °C6 July 1967	5.3 °C17 January 1967	23.1 °C	1,434 mm	140
1966	38.1 °C12 May 1966	7.6 °C3 December 1966	23.3 °C	1,659 mm	107
1965	37.1 °C14 May 1965	7.4 °C18 December 1965	23.1 °C	1,645 mm	119
1964	38.1 °C18 June 1964	6.3 °C19 December 1964	23.1 °C	2,285 mm	137
1963	35.7 °C13 May 1963	4.8 °C16 January 1963	23.2 °C	1,923 mm	137
1962	37.9 °C27 May 1962	6.6 °C28 January 1962	23.1 °C	1,464 mm	147
1961	38.5 °C1 June 1961	4.4 °C19 January 1961	23.6 °C	1,876 mm	139
1960	38.3 °C5 May 1960	6.9 °C3 January 1960	23.6 °C	1,714 mm	143
1959	38.3 °C12 June 1959	7.2 °C14 January 1959	23.5 °C	1,471 mm	140
1958	40.3 °C10 May 1958	6.8 °C1 February 1958	23.4 °C	1,471 mm	156
1957	39.7 °C12 May 1957	4.8 °C14 February 1957	23.4 °C	1,856 mm	145
1956	37.0 °C4 September 1956	6.7 °C10 January 1956	22.9 °C	1,931 mm	137
1955	38.9 °C16 April 1955	5.3 °C12 January 1955	23.1 °C	1,603 mm	124
1954	39.6 °C18 June 1954	6.6 °C17 December 1954	23.8 °C	1,456 mm	137
1953	38.7 °C26 June 1953	10.0 °C12 December 1953	23.6 °C	1,915 mm	136
1952	38.7 °C10 April 1952	6.0 °C19 February 1952	23.9 °C	2,163 mm	134
1951	35.7 °C17 May 1951	7.5 °C14 January 1951	23.3 °C	1,989 mm	132
1950	38.2 °C21 April 1950	9.3 °C17 February 1950	23.5 °C	1,910 mm	140
1949	40.6 °C14 June 1949	5.2 °C10 January 1949	23.9 °C	1,550 mm	135
1948	36.1 °C16 June 1948	6.8 °C4 January 1948	23.3 °C	1,556 mm	121
1947	36.9 °C14 June 1947	7.5 °C23 February 1947	23.0 °C	1,344 mm	105
1946	40.3 °C31 July 1946	8.2 °C7 January 1946	24.5 °C	981 mm	167
1945	35.6 °C13 July 1945	6.7 °C9 February 1945	21.9 °C	1,669 mm	85
1944	37.6 °C8 April 1944	5.1 °C21 December 1944	22.8 °C	1,736 mm	102
1943	35.9 °C18 June 1943	6.5 °C13 January 1943	22.6 °C	1,523 mm	101
1942	36.2 °C24 May 1942	8.1 °C13 February 1942	22.8 °C	1,818 mm	85
1941	35.4 °C26 April 1941	8.8 °C3 February 1941	23.1 °C	1,892 mm	103
1940	35.9 °C14 May 1940	7.4 °C26 January 1940	22.6 °C	1,771 mm	88

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

27.6 °C

+0.3 °C

Hot days (≥ 30 °C)

159 d/yr

+17

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2222 mm

+415 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	21.8 °C	+2.0 °C	16 mm	-19 mm
Feb	19.3 °C	-1.9 °C	53 mm	+18 mm
Mar	24.5 °C	-0.2 °C	35 mm	-21 mm
Apr	29.2 °C	+0.4 °C	137 mm	+28 mm
May	30.9 °C	-0.6 °C	282 mm	+48 mm
Jun	33.0 °C	+0.4 °C	319 mm	+78 mm
Jul	33.1 °C	+0.5 °C	310 mm	+64 mm
Aug	32.2 °C	+0.5 °C	391 mm	+67 mm
Sep	31.8 °C	+1.4 °C	362 mm	+99 mm
Oct	28.7 °C	+0.8 °C	170 mm	-5 mm
Nov	23.6 °C	-1.1 °C	99 mm	+39 mm
Dec	22.8 °C	+1.7 °C	48 mm	+19 mm

The year's extremes

Hottest day

39.2 °C

1 Jun 2025

Coldest day

7.7 °C

13 Jan 2025

Wettest day

147.0 mm

29 Sep 2025

Windiest day

30.9 km/h

29 Sep 2025

Strongest gust

91.8 km/h

29 Sep 2025

Hottest feels-like

45.6 °C

2 Jun 2025

Coldest feels-like

6.2 °C

13 Jan 2025

Sunniest day

12.5 h

1 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 Xuân Mai?

Xuân Mai has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 23.5 °C and it receives 1,807 mm of precipitation per year.

What is the hottest day ever recorded in Xuân Mai?

The hottest day measured in Xuân Mai between 1940 and 2025 was 3 June 2017, reaching 41.3 °C.

What is the coldest day in Xuân Mai?

The coldest day measured in Xuân Mai between 1940 and 2025 was 2 January 1974, at 3.8 °C.

Does it snow in Xuân Mai?

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

Has the climate of Xuân Mai warmed?

Yes: Xuân Mai warmed by +1.2 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Xuân Mai?

The wettest day measured in Xuân Mai between 1940 and 2025 was 20 August 1980, with 206 mm of rain in 24 hours.

What was the windiest day in Xuân Mai?

The windiest day measured in Xuân Mai between 1940 and 2025 was 7 September 2024, with winds reaching 39.8 km/h.

What is the warmest month in Xuân Mai?

The warmest month in Xuân Mai is June (28.8 °C on average); the coldest is January (16.4 °C).

How much does it rain in Xuân Mai?

Xuân Mai receives on average 1,807 mm of precipitation per year, spread over about 172 rainy days.

Is it sunny in Xuân Mai?

Xuân Mai gets on average 6.8 hours of sunshine per day, roughly 2,482 hours per year over 1940-2025.

Are there tropical nights in Xuân Mai?

Yes: Xuân Mai has on average 223 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Xuân Mai?

In Xuân Mai, between 1940 and 2025, the highest apparent temperature reached 47.3 °C on 22 May 2023, and the lowest was 1.6 °C on 2 January 1974.

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