Dong Hoi climate — normals and trends

Q: What is the climate of Dong Hoi?

Dong Hoi has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 2,223 mm of precipitation per year.

Q: What is the hottest day ever recorded in Dong Hoi?

The hottest day measured in Dong Hoi between 1940 and 2025 was 30 April 2024, reaching 39.2 °C.

Q: What is the coldest day in Dong Hoi?

The coldest day measured in Dong Hoi between 1940 and 2025 was 14 December 1975, at 10.7 °C.

Q: Does it snow in Dong Hoi?

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

Q: Has the climate of Dong Hoi warmed?

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

Q: What is the wettest day in Dong Hoi?

The wettest day measured in Dong Hoi between 1940 and 2025 was 22 September 1979, with 309 mm of rain in 24 hours.

Q: What was the windiest day in Dong Hoi?

The windiest day measured in Dong Hoi between 1940 and 2025 was 23 October 1971, with winds reaching 59.3 km/h.

Q: What is the warmest month in Dong Hoi?

The warmest month in Dong Hoi is June (28.7 °C on average); the coldest is January (18.9 °C).

Q: How much does it rain in Dong Hoi?

Dong Hoi receives on average 2,223 mm of precipitation per year, spread over about 196 rainy days.

Q: Is it sunny in Dong Hoi?

Dong Hoi gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.

Dong Hoi (Vietnam) has a tropical rainforest climate (Af) under the Köppen-Geiger classification. Its mean annual temperature is 24.4 °C and it receives 2,223 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 (28.7 °C on average) and the coldest is January (18.9 °C). Rainfall peaks in October.

Dong Hoi averages 0 frost days, 113 hot days (≥ 30 °C) and 196 rainy days per year.

Dong Hoi has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.

The hottest day of the period reached 39.2 °C (on 30 April 2024) and the coldest 10.7 °C (on 14 December 1975).

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

Dong HoiQuang Tri

coords: 17.47°, 106.62°
period: 1940–2025 · 86 yrs

AfTropical rainforestWarmest monthJuneColdest monthJanuaryWettest monthOctoberDriest monthApril

Mean daily temperature

24.4°C

Average daily high

26.8°C

Average daily low

22.6°C

Annual rainfall

2,223mm

Sunshine / day

8.4h

Mean relative humidity

83%

Average peak wind

18.1km/h

Seasonal range

9.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

113 d/yr

Rainy days (≥ 1 mm)

196 d/yr

Annual snowfall

0.0 cm

Average feels-like high

30.4 °C

Average feels-like low

24.8 °C

Average peak gust

36.2 km/h

Tropical nights (≥ 20 °C)

268 d/yr

Solar radiation

15.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.30 · 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

39.2 °C

30 April 2024

Coldest day

10.7 °C

14 December 1975

Wettest day

309 mm

22 September 1979

Windiest day

59.3 km/h

23 October 1971

Strongest gust

119.5 km/h

30 October 1952

Hottest feels-like

45.6 °C

23 June 2019

Coldest feels-like

5.6 °C

14 December 1975

Sunniest day

12.7 h

14 June 2013

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	34.8 °C9 May 2025	14.4 °C13 January 2025	24.6 °C	3,235 mm	117
2024	39.2 °C30 April 2024	14.5 °C25 January 2024	25.8 °C	2,461 mm	142
2023	36.6 °C7 May 2023	13.4 °C31 January 2023	25.5 °C	2,406 mm	143
2022	35.1 °C20 June 2022	11.0 °C21 February 2022	24.8 °C	2,663 mm	118
2021	35.8 °C3 June 2021	12.6 °C9 January 2021	24.9 °C	2,489 mm	124
2020	37.2 °C22 May 2020	14.8 °C20 December 2020	25.6 °C	3,420 mm	149
2019	37.4 °C23 June 2019	14.8 °C2 January 2019	25.9 °C	2,306 mm	144
2018	34.3 °C30 June 2018	12.4 °C1 February 2018	24.7 °C	1,766 mm	107
2017	34.7 °C12 August 2017	15.4 °C18 December 2017	24.8 °C	3,099 mm	119
2016	36.0 °C16 July 2016	10.9 °C25 January 2016	25.2 °C	2,323 mm	148
2015	37.4 °C20 April 2015	13.8 °C12 January 2015	25.4 °C	1,869 mm	139
2014	34.7 °C17 August 2014	13.1 °C24 January 2014	24.8 °C	1,887 mm	131
2013	35.1 °C16 May 2013	12.7 °C17 December 2013	24.5 °C	2,647 mm	106
2012	35.0 °C16 July 2012	13.5 °C5 January 2012	24.8 °C	1,636 mm	127
2011	35.1 °C8 July 2011	10.9 °C12 January 2011	23.5 °C	2,824 mm	92
2010	35.4 °C6 July 2010	14.4 °C19 February 2010	25.1 °C	2,515 mm	136
2009	34.2 °C20 September 2009	13.4 °C27 January 2009	24.7 °C	2,239 mm	107
2008	34.5 °C21 July 2008	12.0 °C3 February 2008	24.0 °C	2,156 mm	116
2007	35.3 °C9 June 2007	13.5 °C3 February 2007	24.5 °C	2,425 mm	111
2006	35.2 °C14 June 2006	13.3 °C9 January 2006	24.7 °C	1,990 mm	115
2005	34.4 °C27 May 2005	12.7 °C1 January 2005	24.4 °C	2,233 mm	118
2004	34.3 °C7 July 2004	11.6 °C6 February 2004	24.1 °C	2,077 mm	95
2003	34.4 °C17 May 2003	12.4 °C6 January 2003	24.7 °C	1,979 mm	126
2002	33.3 °C15 June 2002	13.6 °C28 December 2002	24.4 °C	1,954 mm	96
2001	34.2 °C9 April 2001	14.5 °C31 December 2001	24.4 °C	2,245 mm	108
2000	33.9 °C12 August 2000	12.7 °C1 February 2000	24.0 °C	2,180 mm	93
1999	34.2 °C19 July 1999	12.8 °C22 December 1999	24.3 °C	2,429 mm	120
1998	35.5 °C20 July 1998	13.7 °C6 February 1998	25.3 °C	2,079 mm	131
1997	33.8 °C10 June 1997	14.2 °C13 January 1997	24.6 °C	2,112 mm	123
1996	35.0 °C18 March 1996	11.2 °C22 February 1996	23.9 °C	2,588 mm	96
1995	34.5 °C21 June 1995	12.8 °C1 February 1995	24.2 °C	2,457 mm	106
1994	35.6 °C4 May 1994	13.8 °C26 January 1994	24.4 °C	1,786 mm	99
1993	34.5 °C26 July 1993	12.5 °C24 January 1993	24.4 °C	1,875 mm	126
1992	34.4 °C25 June 1992	12.5 °C25 December 1992	24.2 °C	2,296 mm	109
1991	33.9 °C6 July 1991	12.1 °C28 December 1991	24.8 °C	2,136 mm	108
1990	35.0 °C22 April 1990	14.0 °C1 February 1990	24.6 °C	2,596 mm	111
1989	33.7 °C17 August 1989	13.3 °C14 January 1989	24.0 °C	2,444 mm	105
1988	35.1 °C23 July 1988	12.6 °C19 February 1988	24.4 °C	2,189 mm	120
1987	35.6 °C7 August 1987	14.0 °C27 January 1987	25.0 °C	2,109 mm	138
1986	34.8 °C18 March 1986	11.3 °C2 March 1986	24.2 °C	2,333 mm	107
1985	33.7 °C9 June 1985	14.3 °C30 January 1985	23.9 °C	2,371 mm	88
1984	34.5 °C25 July 1984	13.1 °C10 January 1984	23.9 °C	1,769 mm	91
1983	34.7 °C21 May 1983	10.7 °C22 January 1983	24.3 °C	1,913 mm	133
1982	34.3 °C3 August 1982	12.4 °C30 December 1982	24.4 °C	1,590 mm	109
1981	33.8 °C30 May 1981	14.1 °C15 January 1981	24.5 °C	2,462 mm	116
1980	34.6 °C13 April 1980	13.1 °C10 February 1980	24.6 °C	2,604 mm	105
1979	34.3 °C29 July 1979	14.2 °C31 January 1979	24.7 °C	2,330 mm	126
1978	33.5 °C13 June 1978	13.7 °C18 February 1978	24.3 °C	2,994 mm	100
1977	35.1 °C7 June 1977	12.1 °C5 January 1977	24.0 °C	2,474 mm	100
1976	33.6 °C17 June 1976	13.4 °C14 January 1976	23.8 °C	2,107 mm	95
1975	34.5 °C29 July 1975	10.7 °C14 December 1975	24.1 °C	2,521 mm	106
1974	34.3 °C10 July 1974	12.2 °C26 February 1974	23.8 °C	2,422 mm	105
1973	35.9 °C9 April 1973	14.0 °C3 January 1973	24.8 °C	2,790 mm	136
1972	36.0 °C24 May 1972	12.8 °C9 February 1972	24.3 °C	2,418 mm	116
1971	33.8 °C3 August 1971	12.0 °C31 January 1971	23.4 °C	2,814 mm	81
1970	34.4 °C12 August 1970	14.1 °C19 January 1970	24.2 °C	2,596 mm	116
1969	35.0 °C20 May 1969	13.6 °C4 February 1969	24.5 °C	1,818 mm	120
1968	34.8 °C19 July 1968	11.3 °C14 February 1968	24.1 °C	2,159 mm	110
1967	34.5 °C30 June 1967	11.2 °C12 January 1967	23.7 °C	1,938 mm	117
1966	34.3 °C29 April 1966	14.3 °C3 December 1966	24.8 °C	2,009 mm	108
1965	33.6 °C15 May 1965	13.0 °C23 January 1965	24.3 °C	1,995 mm	94
1964	34.9 °C31 July 1964	12.3 °C26 February 1964	24.0 °C	3,049 mm	103
1963	32.5 °C10 July 1963	12.5 °C14 January 1963	23.6 °C	1,610 mm	93
1962	34.0 °C23 June 1962	12.8 °C3 January 1962	23.7 °C	2,359 mm	95
1961	33.4 °C2 June 1961	13.1 °C19 January 1961	24.2 °C	2,228 mm	96
1960	35.1 °C28 April 1960	11.9 °C26 January 1960	24.1 °C	2,701 mm	102
1959	35.3 °C12 June 1959	12.4 °C11 January 1959	24.3 °C	1,815 mm	106
1958	36.2 °C27 March 1958	12.5 °C1 February 1958	23.9 °C	2,348 mm	101
1957	35.2 °C14 May 1957	11.6 °C13 February 1957	24.0 °C	2,174 mm	113
1956	34.0 °C4 June 1956	12.4 °C30 December 1956	23.9 °C	2,305 mm	110
1955	34.0 °C28 July 1955	11.3 °C12 January 1955	23.9 °C	2,100 mm	114
1954	35.0 °C18 June 1954	14.3 °C8 February 1954	24.6 °C	1,717 mm	132
1953	34.8 °C20 July 1953	14.6 °C9 January 1953	24.7 °C	2,626 mm	117
1952	35.3 °C13 July 1952	13.7 °C19 February 1952	25.0 °C	2,052 mm	141
1951	34.3 °C10 April 1951	13.0 °C14 January 1951	24.5 °C	1,657 mm	124
1950	34.1 °C21 April 1950	14.4 °C17 December 1950	24.7 °C	1,728 mm	132
1949	35.4 °C13 June 1949	12.9 °C9 January 1949	24.5 °C	1,869 mm	117
1948	34.9 °C17 June 1948	13.4 °C29 January 1948	24.2 °C	1,973 mm	115
1947	34.5 °C6 August 1947	12.8 °C21 December 1947	23.9 °C	2,055 mm	102
1946	35.3 °C2 August 1946	13.5 °C8 January 1946	24.3 °C	1,421 mm	119
1945	34.0 °C14 July 1945	13.4 °C4 February 1945	23.4 °C	1,644 mm	99
1944	33.7 °C22 July 1944	13.2 °C22 December 1944	24.0 °C	2,366 mm	114
1943	33.6 °C27 July 1943	13.7 °C21 November 1943	23.5 °C	1,899 mm	99
1942	33.5 °C7 August 1942	13.9 °C17 December 1942	24.1 °C	1,698 mm	108
1941	33.3 °C28 February 1941	14.5 °C1 February 1941	24.3 °C	1,870 mm	104
1940	33.3 °C16 May 1940	13.5 °C7 January 1940	23.8 °C	1,350 mm	97

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

26.8 °C

0.0 °C

Hot days (≥ 30 °C)

117 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

3235 mm

+1012 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	20.5 °C	-0.4 °C	110 mm	-15 mm
Feb	21.1 °C	-0.9 °C	189 mm	+103 mm
Mar	23.6 °C	-1.1 °C	94 mm	+9 mm
Apr	27.5 °C	-0.2 °C	58 mm	-23 mm
May	30.3 °C	+0.1 °C	193 mm	+80 mm
Jun	32.0 °C	+0.4 °C	297 mm	+214 mm
Jul	30.8 °C	-0.8 °C	108 mm	+24 mm
Aug	31.3 °C	+0.3 °C	370 mm	+220 mm
Sep	29.8 °C	+0.7 °C	381 mm	+43 mm
Oct	27.4 °C	+0.9 °C	682 mm	+166 mm
Nov	24.2 °C	-0.1 °C	531 mm	+184 mm
Dec	22.8 °C	+1.1 °C	223 mm	+8 mm

The year's extremes

Hottest day

34.8 °C

9 May 2025

Coldest day

14.4 °C

13 Jan 2025

Wettest day

148.1 mm

3 Nov 2025

Windiest day

42.5 km/h

28 Sep 2025

Strongest gust

83.2 km/h

22 Jul 2025

Hottest feels-like

42.6 °C

9 May 2025

Coldest feels-like

10.9 °C

27 Jan 2025

Sunniest day

12.4 h

25 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 Dong Hoi?

Dong Hoi has a tropical rainforest climate (Köppen Af). Over 1940-2025, the average annual temperature is 24.4 °C and it receives 2,223 mm of precipitation per year.

What is the hottest day ever recorded in Dong Hoi?

The hottest day measured in Dong Hoi between 1940 and 2025 was 30 April 2024, reaching 39.2 °C.

What is the coldest day in Dong Hoi?

The coldest day measured in Dong Hoi between 1940 and 2025 was 14 December 1975, at 10.7 °C.

Does it snow in Dong Hoi?

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

Has the climate of Dong Hoi warmed?

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

What is the wettest day in Dong Hoi?

The wettest day measured in Dong Hoi between 1940 and 2025 was 22 September 1979, with 309 mm of rain in 24 hours.

What was the windiest day in Dong Hoi?

The windiest day measured in Dong Hoi between 1940 and 2025 was 23 October 1971, with winds reaching 59.3 km/h.

What is the warmest month in Dong Hoi?

The warmest month in Dong Hoi is June (28.7 °C on average); the coldest is January (18.9 °C).

How much does it rain in Dong Hoi?

Dong Hoi receives on average 2,223 mm of precipitation per year, spread over about 196 rainy days.

Is it sunny in Dong Hoi?

Dong Hoi gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.

Are there tropical nights in Dong Hoi?

Yes: Dong Hoi has on average 268 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Dong Hoi?

In Dong Hoi, between 1940 and 2025, the highest apparent temperature reached 45.6 °C on 23 June 2019, and the lowest was 5.6 °C on 14 December 1975.

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