Hung Yen climate — normals and trends

Q: What is the climate of Hung Yen?

Hung Yen has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 24.1 °C and it receives 1,679 mm of precipitation per year.

Q: What is the hottest day ever recorded in Hung Yen?

The hottest day measured in Hung Yen between 1940 and 2025 was 28 July 1946, reaching 41.2 °C.

Q: What is the coldest day in Hung Yen?

The coldest day measured in Hung Yen between 1940 and 2025 was 12 January 1955, at 2.4 °C.

Q: Does it snow in Hung Yen?

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

Q: Has the climate of Hung Yen warmed?

Yes: Hung Yen warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Hung Yen?

The wettest day measured in Hung Yen between 1940 and 2025 was 7 September 2024, with 219 mm of rain in 24 hours.

Q: What was the windiest day in Hung Yen?

The windiest day measured in Hung Yen between 1940 and 2025 was 7 September 2024, with winds reaching 51.6 km/h.

Q: What is the warmest month in Hung Yen?

The warmest month in Hung Yen is July (29.8 °C on average); the coldest is January (17.0 °C).

Q: How much does it rain in Hung Yen?

Hung Yen receives on average 1,679 mm of precipitation per year, spread over about 166 rainy days.

Q: Is it sunny in Hung Yen?

Hung Yen gets on average 6.9 hours of sunshine per day, roughly 2,519 hours per year over 1940-2025.

Hung Yen (Vietnam) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 24.1 °C and it receives 1,679 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 (29.8 °C on average) and the coldest is January (17.0 °C). Rainfall peaks in August.

Hung Yen averages 0 frost days, 157 hot days (≥ 30 °C) and 166 rainy days per year.

Hung Yen has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.

The hottest day of the period reached 41.2 °C (on 28 July 1946) and the coldest 2.4 °C (on 12 January 1955).

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

Hung YenHưng Yên Province

coords: 20.65°, 106.05°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJulyColdest monthJanuaryWettest monthAugustDriest monthDecember

Mean daily temperature

24.1°C

Average daily high

27.9°C

Average daily low

21.3°C

Annual rainfall

1,679mm

Sunshine / day

6.9h

Mean relative humidity

80%

Average peak wind

13.4km/h

Seasonal range

12.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

157 d/yr

Rainy days (≥ 1 mm)

166 d/yr

Annual snowfall

0.0 cm

Average feels-like high

31.6 °C

Average feels-like low

24.1 °C

Average peak gust

28.2 km/h

Tropical nights (≥ 20 °C)

232 d/yr

Solar radiation

13.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.29 · 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

41.2 °C

28 July 1946

Coldest day

2.4 °C

12 January 1955

Wettest day

219 mm

7 September 2024

Windiest day

51.6 km/h

7 September 2024

Strongest gust

105.8 km/h

7 September 2024

Hottest feels-like

49.0 °C

14 May 1969

Coldest feels-like

-0.4 °C

12 January 1955

Sunniest day

13.1 h

22 June 1946

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	39.2 °C1 June 2025	8.0 °C13 January 2025	24.6 °C	2,075 mm	161
2024	38.7 °C30 April 2024	8.8 °C24 January 2024	25.4 °C	2,251 mm	189
2023	39.1 °C17 May 2023	8.2 °C30 January 2023	25.3 °C	1,535 mm	178
2022	37.5 °C4 June 2022	8.4 °C20 February 2022	24.5 °C	1,955 mm	160
2021	39.7 °C3 June 2021	7.6 °C2 January 2021	25.1 °C	1,595 mm	170
2020	39.0 °C21 May 2020	10.9 °C17 December 2020	25.1 °C	1,860 mm	152
2019	38.7 °C19 May 2019	8.9 °C10 December 2019	25.5 °C	1,512 mm	177
2018	38.5 °C4 July 2018	8.7 °C30 December 2018	24.8 °C	1,949 mm	165
2017	40.4 °C4 June 2017	10.1 °C20 December 2017	24.7 °C	1,936 mm	155
2016	38.5 °C3 June 2016	5.8 °C24 January 2016	24.9 °C	1,605 mm	182
2015	39.4 °C3 July 2015	9.2 °C14 January 2015	25.3 °C	1,710 mm	185
2014	38.6 °C24 May 2014	6.9 °C15 January 2014	24.4 °C	1,523 mm	167
2013	39.0 °C16 May 2013	6.6 °C20 December 2013	24.2 °C	2,012 mm	158
2012	37.8 °C2 May 2012	8.9 °C5 January 2012	24.3 °C	1,780 mm	176
2011	38.0 °C7 July 2011	7.7 °C26 December 2011	23.2 °C	1,555 mm	135
2010	38.3 °C6 July 2010	9.2 °C27 December 2010	24.8 °C	2,028 mm	168
2009	37.4 °C21 June 2009	6.9 °C11 January 2009	24.7 °C	1,585 mm	177
2008	36.8 °C23 June 2008	6.8 °C2 February 2008	23.6 °C	1,674 mm	160
2007	38.1 °C9 June 2007	8.2 °C29 January 2007	24.4 °C	1,481 mm	153
2006	37.7 °C6 June 2006	8.9 °C23 December 2006	24.6 °C	1,314 mm	175
2005	37.3 °C13 June 2005	8.5 °C2 January 2005	24.2 °C	1,547 mm	170
2004	38.4 °C3 July 2004	7.3 °C9 February 2004	24.1 °C	1,253 mm	157
2003	39.4 °C7 May 2003	7.5 °C7 January 2003	25.0 °C	1,335 mm	190
2002	37.9 °C21 May 2002	7.7 °C27 December 2002	24.5 °C	1,546 mm	176
2001	37.5 °C21 April 2001	6.7 °C24 December 2001	24.1 °C	1,788 mm	148
2000	37.1 °C26 May 2000	7.6 °C2 February 2000	24.1 °C	1,588 mm	157
1999	36.2 °C27 July 1999	4.6 °C24 December 1999	24.3 °C	1,520 mm	160
1998	37.9 °C15 June 1998	10.5 °C20 January 1998	25.1 °C	1,494 mm	175
1997	39.4 °C9 June 1997	9.3 °C12 January 1997	24.4 °C	1,799 mm	156
1996	38.0 °C6 May 1996	6.4 °C21 February 1996	23.8 °C	1,968 mm	155
1995	37.9 °C23 June 1995	6.8 °C31 December 1995	23.9 °C	1,593 mm	159
1994	39.3 °C3 May 1994	9.8 °C24 January 1994	24.3 °C	2,201 mm	141
1993	37.8 °C4 June 1993	5.9 °C30 January 1993	24.2 °C	1,511 mm	160
1992	38.1 °C8 May 1992	8.3 °C15 January 1992	23.8 °C	1,690 mm	149
1991	36.7 °C24 May 1991	7.4 °C28 December 1991	24.6 °C	1,236 mm	161
1990	38.7 °C22 April 1990	9.6 °C1 February 1990	24.4 °C	1,860 mm	158
1989	37.3 °C18 June 1989	9.0 °C30 January 1989	23.8 °C	1,986 mm	149
1988	39.1 °C24 May 1988	8.4 °C19 February 1988	23.8 °C	1,487 mm	148
1987	38.6 °C24 June 1987	7.3 °C8 December 1987	25.0 °C	1,625 mm	186
1986	38.3 °C2 July 1986	6.9 °C1 March 1986	23.9 °C	1,970 mm	147
1985	37.8 °C27 May 1985	8.1 °C24 December 1985	23.5 °C	2,043 mm	163
1984	37.4 °C14 June 1984	6.6 °C9 January 1984	23.6 °C	1,501 mm	146
1983	39.5 °C5 July 1983	6.0 °C25 January 1983	23.9 °C	1,523 mm	168
1982	38.1 °C1 June 1982	4.9 °C27 December 1982	24.0 °C	1,928 mm	151
1981	37.5 °C25 August 1981	7.3 °C21 December 1981	24.3 °C	2,202 mm	167
1980	38.8 °C31 May 1980	7.6 °C8 February 1980	24.3 °C	1,898 mm	158
1979	37.3 °C20 July 1979	9.8 °C26 December 1979	24.3 °C	1,705 mm	174
1978	37.6 °C25 June 1978	8.7 °C22 January 1978	23.8 °C	2,607 mm	139
1977	38.5 °C17 June 1977	6.4 °C31 January 1977	23.8 °C	1,451 mm	159
1976	36.9 °C17 June 1976	7.3 °C13 January 1976	23.4 °C	1,573 mm	144
1975	37.1 °C30 July 1975	4.1 °C31 December 1975	23.8 °C	2,254 mm	152
1974	38.4 °C2 June 1974	3.3 °C2 January 1974	24.0 °C	1,629 mm	167
1973	39.6 °C20 May 1973	5.2 °C27 December 1973	24.7 °C	2,308 mm	169
1972	39.2 °C10 May 1972	7.4 °C16 January 1972	24.0 °C	2,001 mm	173
1971	40.7 °C18 June 1971	6.0 °C5 January 1971	23.6 °C	1,841 mm	149
1970	38.3 °C9 May 1970	8.1 °C31 January 1970	24.0 °C	1,395 mm	149
1969	40.2 °C13 May 1969	7.8 °C11 December 1969	24.3 °C	1,255 mm	189
1968	39.4 °C19 July 1968	6.5 °C14 February 1968	24.2 °C	1,522 mm	149
1967	40.1 °C6 July 1967	4.5 °C18 January 1967	23.7 °C	1,336 mm	154
1966	37.6 °C12 May 1966	7.8 °C3 December 1966	24.0 °C	1,666 mm	141
1965	37.0 °C14 May 1965	7.2 °C18 December 1965	23.7 °C	1,617 mm	135
1964	37.8 °C31 July 1964	6.1 °C19 December 1964	23.7 °C	1,871 mm	150
1963	36.3 °C18 July 1963	4.5 °C15 January 1963	23.7 °C	1,904 mm	150
1962	37.3 °C28 May 1962	7.6 °C5 January 1962	23.6 °C	1,352 mm	151
1961	38.1 °C13 July 1961	4.7 °C18 January 1961	24.2 °C	1,641 mm	152
1960	37.3 °C5 May 1960	6.4 °C2 January 1960	24.2 °C	1,572 mm	154
1959	38.2 °C12 June 1959	7.0 °C12 January 1959	24.0 °C	1,290 mm	154
1958	39.1 °C11 May 1958	6.5 °C1 February 1958	24.0 °C	1,323 mm	168
1957	38.7 °C12 May 1957	6.2 °C14 February 1957	24.0 °C	1,507 mm	158
1956	37.3 °C19 April 1956	7.5 °C11 January 1956	23.6 °C	1,649 mm	154
1955	37.5 °C15 April 1955	2.4 °C12 January 1955	23.8 °C	1,445 mm	147
1954	39.8 °C18 June 1954	7.2 °C17 December 1954	24.6 °C	1,267 mm	147
1953	37.9 °C26 June 1953	7.8 °C13 December 1953	24.2 °C	1,655 mm	151
1952	38.1 °C11 July 1952	6.6 °C19 February 1952	24.5 °C	2,171 mm	154
1951	36.2 °C10 April 1951	7.1 °C13 January 1951	24.0 °C	1,769 mm	154
1950	37.5 °C21 April 1950	10.0 °C15 February 1950	24.3 °C	1,641 mm	162
1949	41.2 °C14 June 1949	6.2 °C10 January 1949	24.6 °C	1,343 mm	152
1948	37.9 °C30 June 1948	6.8 °C4 January 1948	24.1 °C	1,539 mm	144
1947	36.9 °C6 May 1947	7.3 °C30 December 1947	23.6 °C	1,303 mm	129
1946	41.2 °C28 July 1946	6.9 °C8 January 1946	25.4 °C	854 mm	173
1945	35.3 °C22 June 1945	5.8 °C18 January 1945	22.6 °C	1,641 mm	110
1944	37.8 °C8 April 1944	4.8 °C22 December 1944	23.4 °C	1,565 mm	138
1943	36.9 °C3 June 1943	6.7 °C13 January 1943	23.3 °C	1,441 mm	121
1942	35.9 °C24 May 1942	8.1 °C7 December 1942	23.5 °C	1,774 mm	123
1941	35.5 °C26 April 1941	9.8 °C1 February 1941	23.7 °C	1,839 mm	136
1940	36.2 °C16 May 1940	7.4 °C25 January 1940	23.3 °C	1,887 mm	122

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

28.2 °C

+0.3 °C

Hot days (≥ 30 °C)

161 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2075 mm

+396 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	22.6 °C	+2.0 °C	13 mm	-20 mm
Feb	20.1 °C	-1.6 °C	41 mm	+9 mm
Mar	24.4 °C	-0.4 °C	40 mm	-10 mm
Apr	28.8 °C	+0.1 °C	139 mm	+58 mm
May	31.4 °C	-0.5 °C	185 mm	-6 mm
Jun	33.9 °C	+0.5 °C	235 mm	+15 mm
Jul	33.6 °C	+0.2 °C	328 mm	+109 mm
Aug	32.6 °C	+0.3 °C	412 mm	+84 mm
Sep	32.4 °C	+1.3 °C	379 mm	+107 mm
Oct	29.4 °C	+0.6 °C	155 mm	-14 mm
Nov	24.4 °C	-1.2 °C	93 mm	+35 mm
Dec	23.8 °C	+1.7 °C	54 mm	+29 mm

The year's extremes

Hottest day

39.2 °C

1 Jun 2025

Coldest day

8.0 °C

13 Jan 2025

Wettest day

107.6 mm

29 Sep 2025

Windiest day

39.3 km/h

22 Jul 2025

Strongest gust

80.3 km/h

22 Jul 2025

Hottest feels-like

46.0 °C

30 Jul 2025

Coldest feels-like

6.7 °C

12 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 Hung Yen?

Hung Yen has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 24.1 °C and it receives 1,679 mm of precipitation per year.

What is the hottest day ever recorded in Hung Yen?

The hottest day measured in Hung Yen between 1940 and 2025 was 28 July 1946, reaching 41.2 °C.

What is the coldest day in Hung Yen?

The coldest day measured in Hung Yen between 1940 and 2025 was 12 January 1955, at 2.4 °C.

Does it snow in Hung Yen?

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

Has the climate of Hung Yen warmed?

Yes: Hung Yen warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Hung Yen?

The wettest day measured in Hung Yen between 1940 and 2025 was 7 September 2024, with 219 mm of rain in 24 hours.

What was the windiest day in Hung Yen?

The windiest day measured in Hung Yen between 1940 and 2025 was 7 September 2024, with winds reaching 51.6 km/h.

What is the warmest month in Hung Yen?

The warmest month in Hung Yen is July (29.8 °C on average); the coldest is January (17.0 °C).

How much does it rain in Hung Yen?

Hung Yen receives on average 1,679 mm of precipitation per year, spread over about 166 rainy days.

Is it sunny in Hung Yen?

Hung Yen gets on average 6.9 hours of sunshine per day, roughly 2,519 hours per year over 1940-2025.

Are there tropical nights in Hung Yen?

Yes: Hung Yen has on average 232 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Hung Yen?

In Hung Yen, between 1940 and 2025, the highest apparent temperature reached 49.0 °C on 14 May 1969, and the lowest was -0.4 °C on 12 January 1955.

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