Haiphong climate — normals and trends

Q: What is the climate of Haiphong?

Haiphong has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 24.0 °C and it receives 1,849 mm of precipitation per year.

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

The hottest day measured in Haiphong between 1940 and 2025 was 23 June 1946, reaching 36.2 °C.

Q: What is the coldest day in Haiphong?

The coldest day measured in Haiphong between 1940 and 2025 was 24 January 2016, at 5.5 °C.

Q: Does it snow in Haiphong?

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

Q: Has the climate of Haiphong warmed?

Yes: Haiphong warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Haiphong?

The wettest day measured in Haiphong between 1940 and 2025 was 25 August 1985, with 212 mm of rain in 24 hours.

Q: What was the windiest day in Haiphong?

The windiest day measured in Haiphong between 1940 and 2025 was 22 August 1996, with winds reaching 71.9 km/h.

Q: What is the warmest month in Haiphong?

The warmest month in Haiphong is July (29.4 °C on average); the coldest is January (17.3 °C).

Q: How much does it rain in Haiphong?

Haiphong receives on average 1,849 mm of precipitation per year, spread over about 168 rainy days.

Q: Is it sunny in Haiphong?

Haiphong gets on average 7.8 hours of sunshine per day, roughly 2,847 hours per year over 1940-2025.

Haiphong (Vietnam) has a humid subtropical, dry winter climate (Cwa) under the Köppen-Geiger classification. Its mean annual temperature is 24.0 °C and it receives 1,849 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 (29.4 °C on average) and the coldest is January (17.3 °C). Rainfall peaks in August.

Haiphong averages 0 frost days, 91 hot days (≥ 30 °C) and 168 rainy days per year.

Haiphong has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.

The hottest day of the period reached 36.2 °C (on 23 June 1946) and the coldest 5.5 °C (on 24 January 2016).

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

HaiphongHai Phong

coords: 20.86°, 106.68°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJulyColdest monthJanuaryWettest monthAugustDriest monthDecember

Mean daily temperature

24.0°C

Average daily high

26.0°C

Average daily low

22.4°C

Annual rainfall

1,849mm

Sunshine / day

7.8h

Mean relative humidity

81%

Average peak wind

18.0km/h

Seasonal range

12.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

91 d/yr

Rainy days (≥ 1 mm)

168 d/yr

Annual snowfall

0.0 cm

Average feels-like high

29.2 °C

Average feels-like low

24.6 °C

Average peak gust

29.8 km/h

Tropical nights (≥ 20 °C)

249 d/yr

Solar radiation

14.8 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.8 °C

since 1940

+0.1 °C per decade · r² = 0.25 · 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

36.2 °C

23 June 1946

Coldest day

5.5 °C

24 January 2016

Wettest day

212 mm

25 August 1985

Windiest day

71.9 km/h

22 August 1996

Strongest gust

128.5 km/h

22 August 1996

Hottest feels-like

45.7 °C

4 July 2015

Coldest feels-like

-0.1 °C

24 January 2016

Sunniest day

13.0 h

24 June 1957

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	35.2 °C2 June 2025	12.0 °C12 January 2025	24.4 °C	2,111 mm	115
2024	35.0 °C30 April 2024	9.2 °C23 January 2024	25.2 °C	2,347 mm	120
2023	35.2 °C17 July 2023	10.3 °C22 December 2023	25.0 °C	1,486 mm	120
2022	34.2 °C6 September 2022	8.7 °C21 February 2022	24.3 °C	2,055 mm	106
2021	35.6 °C21 June 2021	9.5 °C8 January 2021	24.8 °C	1,709 mm	130
2020	34.7 °C21 May 2020	12.3 °C18 December 2020	24.9 °C	1,777 mm	118
2019	35.1 °C29 June 2019	11.0 °C1 January 2019	25.4 °C	1,529 mm	128
2018	34.8 °C5 July 2018	9.3 °C31 December 2018	24.4 °C	2,312 mm	108
2017	35.1 °C3 June 2017	11.8 °C18 December 2017	24.5 °C	2,420 mm	94
2016	34.8 °C3 June 2016	5.5 °C24 January 2016	24.5 °C	1,732 mm	123
2015	35.3 °C3 July 2015	11.5 °C13 January 2015	25.0 °C	1,689 mm	127
2014	34.5 °C20 June 2014	9.7 °C11 February 2014	24.3 °C	1,937 mm	121
2013	34.7 °C16 May 2013	9.8 °C19 December 2013	24.1 °C	2,123 mm	101
2012	34.8 °C22 July 2012	9.8 °C25 January 2012	24.1 °C	2,055 mm	106
2011	34.6 °C31 August 2011	8.0 °C11 January 2011	23.1 °C	1,619 mm	94
2010	34.8 °C5 July 2010	9.8 °C16 December 2010	24.5 °C	1,916 mm	97
2009	34.5 °C20 June 2009	10.3 °C24 January 2009	24.4 °C	1,892 mm	116
2008	33.6 °C23 September 2008	7.7 °C2 February 2008	23.6 °C	1,796 mm	90
2007	34.8 °C9 June 2007	12.2 °C31 January 2007	24.2 °C	1,366 mm	106
2006	33.9 °C6 June 2006	11.0 °C7 January 2006	24.5 °C	1,275 mm	92
2005	35.4 °C19 July 2005	9.4 °C1 January 2005	24.0 °C	1,573 mm	107
2004	34.2 °C3 July 2004	9.7 °C9 February 2004	23.9 °C	1,515 mm	83
2003	33.9 °C10 June 2003	8.8 °C7 January 2003	24.6 °C	1,653 mm	108
2002	34.0 °C13 July 2002	7.9 °C27 December 2002	24.3 °C	1,818 mm	101
2001	34.3 °C6 July 2001	11.6 °C14 December 2001	24.0 °C	1,877 mm	89
2000	33.8 °C13 August 2000	9.6 °C1 February 2000	23.9 °C	1,461 mm	99
1999	33.6 °C6 June 1999	8.2 °C23 December 1999	24.0 °C	1,483 mm	104
1998	34.6 °C22 May 1998	11.1 °C5 February 1998	24.9 °C	1,350 mm	120
1997	34.6 °C20 August 1997	11.4 °C24 January 1997	24.1 °C	2,133 mm	67
1996	34.9 °C2 August 1996	7.2 °C21 February 1996	23.7 °C	1,973 mm	85
1995	33.4 °C22 June 1995	11.8 °C1 February 1995	23.9 °C	1,584 mm	93
1994	34.9 °C3 May 1994	10.9 °C21 January 1994	24.1 °C	2,372 mm	71
1993	34.7 °C4 June 1993	9.1 °C16 January 1993	24.1 °C	1,390 mm	101
1992	34.6 °C31 August 1992	11.2 °C15 January 1992	23.7 °C	1,859 mm	78
1991	33.4 °C7 September 1991	6.9 °C28 December 1991	24.5 °C	1,239 mm	103
1990	34.9 °C21 August 1990	9.4 °C31 January 1990	24.2 °C	1,812 mm	92
1989	33.5 °C18 June 1989	8.8 °C13 January 1989	23.7 °C	1,715 mm	90
1988	33.6 °C23 June 1988	9.7 °C19 February 1988	23.9 °C	1,678 mm	103
1987	34.9 °C25 June 1987	11.0 °C8 December 1987	24.7 °C	2,052 mm	104
1986	34.3 °C2 July 1986	7.3 °C1 March 1986	23.9 °C	1,888 mm	94
1985	33.6 °C26 June 1985	11.0 °C10 January 1985	23.5 °C	2,138 mm	81
1984	33.8 °C1 September 1984	9.9 °C21 January 1984	23.5 °C	1,652 mm	76
1983	35.0 °C2 July 1983	8.0 °C21 January 1983	23.7 °C	1,456 mm	113
1982	33.7 °C2 June 1982	9.1 °C27 December 1982	23.9 °C	2,184 mm	81
1981	34.3 °C25 August 1981	11.6 °C21 December 1981	24.1 °C	2,363 mm	96
1980	33.5 °C31 May 1980	9.2 °C8 February 1980	24.1 °C	2,090 mm	82
1979	34.1 °C30 July 1979	9.7 °C31 January 1979	24.3 °C	1,799 mm	74
1978	33.9 °C29 July 1978	9.8 °C18 January 1978	23.9 °C	2,914 mm	83
1977	34.9 °C31 May 1977	7.0 °C30 January 1977	23.9 °C	1,658 mm	110
1976	33.4 °C10 July 1976	8.6 °C28 December 1976	23.4 °C	1,413 mm	87
1975	33.8 °C30 July 1975	6.5 °C14 December 1975	23.7 °C	2,334 mm	87
1974	34.5 °C11 July 1974	8.8 °C25 February 1974	23.7 °C	1,657 mm	98
1973	34.9 °C20 July 1973	10.3 °C31 December 1973	24.4 °C	2,826 mm	91
1972	34.9 °C11 July 1972	8.4 °C10 February 1972	23.7 °C	2,334 mm	82
1971	33.7 °C21 July 1971	9.4 °C30 January 1971	23.3 °C	1,793 mm	68
1970	32.9 °C12 July 1970	11.3 °C19 January 1970	23.7 °C	1,474 mm	104
1969	34.1 °C24 May 1969	9.8 °C4 February 1969	24.0 °C	1,213 mm	105
1968	34.5 °C26 July 1968	7.9 °C14 February 1968	23.9 °C	1,904 mm	95
1967	35.3 °C6 July 1967	8.0 °C16 January 1967	23.5 °C	1,752 mm	100
1966	33.4 °C12 May 1966	9.5 °C27 December 1966	24.3 °C	1,998 mm	68
1965	33.3 °C20 July 1965	7.1 °C17 December 1965	23.8 °C	1,863 mm	54
1964	35.0 °C8 August 1964	8.5 °C25 February 1964	23.8 °C	1,867 mm	96
1963	33.2 °C18 July 1963	9.5 °C14 January 1963	23.6 °C	2,211 mm	71
1962	33.9 °C23 July 1962	10.5 °C27 January 1962	23.6 °C	1,739 mm	95
1961	34.6 °C13 July 1961	9.2 °C17 January 1961	24.1 °C	1,781 mm	87
1960	34.0 °C14 June 1960	8.3 °C25 January 1960	23.9 °C	1,840 mm	86
1959	33.9 °C31 August 1959	9.6 °C10 January 1959	23.9 °C	1,786 mm	79
1958	35.4 °C2 June 1958	7.2 °C1 February 1958	23.9 °C	1,578 mm	91
1957	35.7 °C14 May 1957	8.1 °C11 February 1957	23.8 °C	1,678 mm	101
1956	33.5 °C4 September 1956	9.0 °C9 January 1956	23.6 °C	1,659 mm	71
1955	32.9 °C14 July 1955	8.6 °C11 January 1955	23.7 °C	1,449 mm	62
1954	34.2 °C18 June 1954	11.0 °C26 January 1954	24.3 °C	1,544 mm	86
1953	33.7 °C13 August 1953	12.4 °C13 December 1953	24.2 °C	1,986 mm	77
1952	34.0 °C11 July 1952	8.0 °C19 February 1952	24.4 °C	2,483 mm	81
1951	32.8 °C31 July 1951	7.4 °C13 January 1951	24.0 °C	2,325 mm	65
1950	33.4 °C23 July 1950	11.7 °C17 February 1950	24.4 °C	2,016 mm	85
1949	35.1 °C9 June 1949	9.2 °C8 January 1949	24.4 °C	1,547 mm	87
1948	33.5 °C17 June 1948	9.2 °C26 January 1948	24.0 °C	1,804 mm	80
1947	34.2 °C19 July 1947	9.0 °C20 December 1947	23.6 °C	1,487 mm	54
1946	36.2 °C23 June 1946	10.7 °C8 January 1946	24.8 °C	1,280 mm	118
1945	32.8 °C31 July 1945	8.0 °C4 February 1945	23.1 °C	2,462 mm	58
1944	33.3 °C22 July 1944	8.2 °C21 December 1944	23.6 °C	1,988 mm	71
1943	33.8 °C4 June 1943	9.9 °C21 November 1943	23.4 °C	1,835 mm	57
1942	32.5 °C6 August 1942	9.9 °C13 February 1942	23.7 °C	2,013 mm	54
1941	32.1 °C14 June 1941	11.0 °C1 February 1941	23.8 °C	2,071 mm	52
1940	32.9 °C1 July 1940	9.0 °C23 January 1940	23.4 °C	2,163 mm	59

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

26.3 °C

+0.3 °C

Hot days (≥ 30 °C)

115 d/yr

+24

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2111 mm

+262 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	20.4 °C	+1.2 °C	17 mm	-21 mm
Feb	19.1 °C	-0.7 °C	27 mm	-6 mm
Mar	21.8 °C	-0.5 °C	28 mm	-16 mm
Apr	25.9 °C	+0.3 °C	64 mm	-4 mm
May	29.2 °C	+0.1 °C	135 mm	-46 mm
Jun	31.4 °C	+0.5 °C	188 mm	-46 mm
Jul	31.5 °C	+0.4 °C	403 mm	+150 mm
Aug	30.7 °C	+0.1 °C	531 mm	+146 mm
Sep	30.5 °C	+0.9 °C	428 mm	+99 mm
Oct	28.2 °C	+0.6 °C	189 mm	-1 mm
Nov	24.0 °C	-0.6 °C	57 mm	-6 mm
Dec	22.6 °C	+1.5 °C	45 mm	+13 mm

The year's extremes

Hottest day

35.2 °C

2 Jun 2025

Coldest day

12.0 °C

12 Jan 2025

Wettest day

124.5 mm

29 Sep 2025

Windiest day

50.9 km/h

22 Jul 2025

Strongest gust

81.0 km/h

22 Jul 2025

Hottest feels-like

44.5 °C

30 Jul 2025

Coldest feels-like

8.5 °C

26 Jan 2025

Sunniest day

12.6 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 Haiphong?

Haiphong has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 24.0 °C and it receives 1,849 mm of precipitation per year.

What is the hottest day ever recorded in Haiphong?

The hottest day measured in Haiphong between 1940 and 2025 was 23 June 1946, reaching 36.2 °C.

What is the coldest day in Haiphong?

The coldest day measured in Haiphong between 1940 and 2025 was 24 January 2016, at 5.5 °C.

Does it snow in Haiphong?

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

Has the climate of Haiphong warmed?

Yes: Haiphong warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Haiphong?

The wettest day measured in Haiphong between 1940 and 2025 was 25 August 1985, with 212 mm of rain in 24 hours.

What was the windiest day in Haiphong?

The windiest day measured in Haiphong between 1940 and 2025 was 22 August 1996, with winds reaching 71.9 km/h.

What is the warmest month in Haiphong?

The warmest month in Haiphong is July (29.4 °C on average); the coldest is January (17.3 °C).

How much does it rain in Haiphong?

Haiphong receives on average 1,849 mm of precipitation per year, spread over about 168 rainy days.

Is it sunny in Haiphong?

Haiphong gets on average 7.8 hours of sunshine per day, roughly 2,847 hours per year over 1940-2025.

Are there tropical nights in Haiphong?

Yes: Haiphong has on average 249 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Haiphong?

In Haiphong, between 1940 and 2025, the highest apparent temperature reached 45.7 °C on 4 July 2015, and the lowest was -0.1 °C on 24 January 2016.

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