Phu Ly climate — normals and trends

Q: What is the climate of Phu Ly?

Phu Ly has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 24.1 °C and it receives 1,661 mm of precipitation per year.

Q: What is the hottest day ever recorded in Phu Ly?

The hottest day measured in Phu Ly between 1940 and 2025 was 18 June 1971, reaching 42.1 °C.

Q: What is the coldest day in Phu Ly?

The coldest day measured in Phu Ly between 1940 and 2025 was 12 January 1955, at 2.0 °C.

Q: Does it snow in Phu Ly?

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

Q: Has the climate of Phu Ly warmed?

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

Q: What is the wettest day in Phu Ly?

The wettest day measured in Phu Ly between 1940 and 2025 was 24 October 1971, with 237 mm of rain in 24 hours.

Q: What was the windiest day in Phu Ly?

The windiest day measured in Phu Ly between 1940 and 2025 was 27 September 2005, with winds reaching 51.9 km/h.

Q: What is the warmest month in Phu Ly?

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

Q: How much does it rain in Phu Ly?

Phu Ly receives on average 1,661 mm of precipitation per year, spread over about 163 rainy days.

Q: Is it sunny in Phu Ly?

Phu Ly gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.

Phu Ly (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 1,661 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.

Phu Ly averages 0 frost days, 152 hot days (≥ 30 °C) and 163 rainy days per year.

Phu Ly 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 42.1 °C (on 18 June 1971) and the coldest 2.0 °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

Phu LyNinh Binh

coords: 20.55°, 105.91°
period: 1940–2025 · 86 yrs

CwaHumid subtropical, dry winterWarmest monthJulyColdest monthJanuaryWettest monthAugustDriest monthDecember

Mean daily temperature

24.1°C

Average daily high

27.8°C

Average daily low

21.3°C

Annual rainfall

1,661mm

Sunshine / day

7.2h

Mean relative humidity

81%

Average peak wind

13.4km/h

Seasonal range

12.8°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

152 d/yr

Rainy days (≥ 1 mm)

163 d/yr

Annual snowfall

0.0 cm

Average feels-like high

31.5 °C

Average feels-like low

24.0 °C

Average peak gust

28.8 km/h

Tropical nights (≥ 20 °C)

231 d/yr

Solar radiation

14.1 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.28 · 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

42.1 °C

18 June 1971

Coldest day

2.0 °C

12 January 1955

Wettest day

237 mm

24 October 1971

Windiest day

51.9 km/h

27 September 2005

Strongest gust

109.1 km/h

27 September 2005

Hottest feels-like

49.3 °C

14 May 1969

Coldest feels-like

-0.8 °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 °C2 June 2025	7.5 °C13 January 2025	24.5 °C	2,172 mm	160
2024	38.8 °C30 April 2024	8.6 °C24 January 2024	25.3 °C	2,321 mm	187
2023	39.1 °C17 May 2023	8.1 °C30 January 2023	25.2 °C	1,528 mm	174
2022	37.5 °C19 June 2022	8.1 °C20 February 2022	24.4 °C	1,923 mm	152
2021	39.7 °C20 June 2021	7.5 °C2 January 2021	25.0 °C	1,567 mm	167
2020	39.3 °C21 May 2020	10.7 °C31 December 2020	25.1 °C	1,816 mm	149
2019	38.7 °C19 May 2019	8.7 °C10 December 2019	25.5 °C	1,474 mm	171
2018	38.7 °C4 July 2018	8.9 °C30 December 2018	24.7 °C	1,948 mm	157
2017	40.5 °C4 June 2017	10.0 °C18 December 2017	24.6 °C	1,875 mm	150
2016	38.4 °C3 June 2016	5.6 °C24 January 2016	24.8 °C	1,566 mm	182
2015	39.8 °C3 July 2015	9.1 °C13 January 2015	25.2 °C	1,856 mm	178
2014	38.2 °C24 May 2014	7.0 °C15 January 2014	24.3 °C	1,575 mm	158
2013	38.9 °C16 May 2013	6.4 °C20 December 2013	24.1 °C	2,122 mm	152
2012	37.8 °C25 April 2012	8.9 °C5 January 2012	24.2 °C	1,846 mm	172
2011	38.3 °C7 July 2011	7.5 °C11 January 2011	23.1 °C	1,715 mm	129
2010	38.5 °C7 July 2010	9.2 °C27 December 2010	24.8 °C	2,003 mm	161
2009	37.2 °C21 June 2009	6.4 °C11 January 2009	24.6 °C	1,625 mm	171
2008	36.9 °C23 June 2008	6.6 °C2 February 2008	23.5 °C	1,670 mm	158
2007	38.5 °C9 June 2007	7.9 °C29 January 2007	24.3 °C	1,475 mm	149
2006	37.8 °C6 June 2006	9.2 °C23 December 2006	24.5 °C	1,226 mm	166
2005	38.1 °C27 May 2005	8.3 °C2 January 2005	24.1 °C	1,617 mm	164
2004	38.7 °C3 July 2004	7.1 °C9 February 2004	23.9 °C	1,273 mm	152
2003	39.7 °C7 May 2003	7.4 °C7 January 2003	24.9 °C	1,208 mm	184
2002	37.6 °C21 May 2002	7.5 °C27 December 2002	24.3 °C	1,523 mm	168
2001	37.2 °C21 April 2001	6.5 °C24 December 2001	24.0 °C	1,798 mm	145
2000	36.7 °C26 May 2000	8.1 °C2 February 2000	24.0 °C	1,507 mm	150
1999	36.2 °C21 July 1999	4.5 °C24 December 1999	24.2 °C	1,557 mm	158
1998	37.8 °C24 April 1998	10.4 °C5 February 1998	25.1 °C	1,262 mm	174
1997	39.2 °C9 June 1997	8.9 °C12 January 1997	24.3 °C	1,736 mm	156
1996	38.0 °C2 August 1996	6.0 °C21 February 1996	23.7 °C	2,096 mm	154
1995	37.3 °C22 June 1995	6.9 °C31 December 1995	23.8 °C	1,557 mm	152
1994	39.5 °C3 May 1994	10.0 °C24 January 1994	24.2 °C	2,310 mm	139
1993	38.0 °C4 June 1993	5.6 °C30 January 1993	24.1 °C	1,411 mm	158
1992	38.7 °C8 May 1992	7.9 °C15 January 1992	23.8 °C	1,679 mm	147
1991	36.8 °C24 May 1991	7.0 °C28 December 1991	24.5 °C	1,212 mm	158
1990	38.7 °C22 April 1990	9.5 °C1 February 1990	24.3 °C	1,788 mm	153
1989	37.1 °C18 June 1989	8.9 °C30 January 1989	23.7 °C	1,985 mm	149
1988	38.7 °C24 May 1988	8.2 °C19 February 1988	23.8 °C	1,463 mm	145
1987	38.9 °C24 June 1987	7.1 °C8 December 1987	24.9 °C	1,614 mm	178
1986	38.2 °C2 July 1986	6.7 °C1 March 1986	23.8 °C	1,899 mm	145
1985	37.4 °C27 May 1985	7.8 °C17 December 1985	23.4 °C	2,164 mm	150
1984	37.1 °C4 April 1984	6.3 °C9 January 1984	23.5 °C	1,528 mm	139
1983	39.6 °C19 June 1983	5.8 °C25 January 1983	23.9 °C	1,510 mm	167
1982	38.1 °C1 June 1982	4.3 °C28 December 1982	24.0 °C	1,856 mm	144
1981	37.4 °C25 August 1981	6.9 °C21 December 1981	24.2 °C	2,139 mm	159
1980	39.2 °C31 May 1980	7.5 °C8 February 1980	24.2 °C	1,762 mm	153
1979	37.3 °C20 July 1979	9.6 °C2 February 1979	24.2 °C	1,670 mm	166
1978	37.8 °C25 June 1978	8.2 °C22 January 1978	23.7 °C	2,460 mm	127
1977	38.9 °C17 June 1977	6.4 °C31 January 1977	23.7 °C	1,408 mm	154
1976	37.0 °C18 June 1976	7.0 °C13 January 1976	23.2 °C	1,547 mm	141
1975	37.1 °C30 July 1975	3.8 °C31 December 1975	23.6 °C	2,068 mm	148
1974	39.0 °C15 July 1974	3.1 °C2 January 1974	24.0 °C	1,673 mm	163
1973	39.8 °C20 May 1973	5.4 °C27 December 1973	24.6 °C	2,247 mm	164
1972	38.8 °C10 May 1972	7.3 °C8 February 1972	23.9 °C	1,964 mm	172
1971	42.1 °C18 June 1971	6.4 °C10 January 1971	23.5 °C	1,834 mm	142
1970	38.7 °C9 May 1970	8.1 °C31 January 1970	23.9 °C	1,408 mm	147
1969	41.1 °C23 May 1969	7.6 °C11 December 1969	24.3 °C	1,208 mm	189
1968	40.5 °C19 July 1968	6.9 °C14 February 1968	24.2 °C	1,437 mm	144
1967	40.1 °C6 July 1967	4.2 °C18 January 1967	23.6 °C	1,378 mm	144
1966	38.0 °C12 May 1966	7.9 °C27 December 1966	24.0 °C	1,584 mm	138
1965	37.1 °C21 July 1965	7.2 °C18 December 1965	23.6 °C	1,561 mm	134
1964	38.2 °C31 July 1964	5.8 °C19 December 1964	23.6 °C	1,750 mm	143
1963	36.6 °C18 July 1963	4.1 °C16 January 1963	23.5 °C	1,922 mm	146
1962	37.1 °C28 May 1962	6.7 °C28 January 1962	23.5 °C	1,345 mm	144
1961	38.4 °C13 July 1961	4.4 °C18 January 1961	24.1 °C	1,632 mm	141
1960	37.2 °C4 May 1960	6.1 °C2 January 1960	24.1 °C	1,524 mm	153
1959	37.8 °C12 June 1959	6.6 °C12 January 1959	23.9 °C	1,245 mm	145
1958	38.9 °C11 May 1958	6.2 °C1 February 1958	23.8 °C	1,327 mm	164
1957	38.9 °C13 May 1957	6.0 °C14 February 1957	23.9 °C	1,484 mm	151
1956	37.4 °C19 April 1956	7.1 °C11 January 1956	23.5 °C	1,715 mm	148
1955	37.9 °C15 April 1955	2.0 °C12 January 1955	23.7 °C	1,386 mm	143
1954	40.2 °C18 June 1954	6.8 °C17 December 1954	24.5 °C	1,276 mm	143
1953	37.9 °C15 July 1953	7.5 °C13 December 1953	24.2 °C	1,658 mm	149
1952	38.2 °C11 July 1952	6.6 °C19 February 1952	24.4 °C	2,162 mm	154
1951	37.5 °C10 April 1951	7.1 °C13 January 1951	24.0 °C	1,741 mm	153
1950	37.5 °C21 April 1950	10.0 °C15 February 1950	24.3 °C	1,603 mm	154
1949	41.0 °C14 June 1949	6.3 °C10 January 1949	24.5 °C	1,313 mm	149
1948	38.8 °C30 June 1948	6.6 °C4 January 1948	24.1 °C	1,487 mm	139
1947	36.8 °C6 May 1947	7.4 °C30 December 1947	23.5 °C	1,271 mm	131
1946	41.7 °C23 June 1946	6.4 °C8 January 1946	25.2 °C	848 mm	173
1945	35.2 °C23 June 1945	5.4 °C18 January 1945	22.5 °C	1,575 mm	106
1944	37.6 °C8 April 1944	4.7 °C22 December 1944	23.4 °C	1,468 mm	129
1943	37.5 °C4 June 1943	6.5 °C13 January 1943	23.3 °C	1,406 mm	120
1942	36.1 °C25 May 1942	8.4 °C13 February 1942	23.5 °C	1,686 mm	125
1941	36.0 °C26 April 1941	9.7 °C1 February 1941	23.7 °C	1,983 mm	136
1940	36.4 °C16 May 1940	7.7 °C25 January 1940	23.2 °C	1,848 mm	118

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

28.0 °C

+0.2 °C

Hot days (≥ 30 °C)

160 d/yr

Frost days (< 0 °C)

0 d/yr

Annual rainfall

2172 mm

+511 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	22.4 °C	+1.8 °C	15 mm	-17 mm
Feb	20.2 °C	-1.5 °C	38 mm	+8 mm
Mar	24.2 °C	-0.5 °C	38 mm	-8 mm
Apr	28.6 °C	0.0 °C	152 mm	+78 mm
May	31.3 °C	-0.6 °C	190 mm	+11 mm
Jun	33.8 °C	+0.4 °C	212 mm	+6 mm
Jul	33.4 °C	-0.1 °C	387 mm	+175 mm
Aug	32.5 °C	+0.3 °C	454 mm	+124 mm
Sep	32.1 °C	+1.2 °C	383 mm	+98 mm
Oct	29.1 °C	+0.6 °C	151 mm	-30 mm
Nov	24.2 °C	-1.3 °C	98 mm	+38 mm
Dec	23.8 °C	+1.8 °C	53 mm	+28 mm

The year's extremes

Hottest day

39.2 °C

2 Jun 2025

Coldest day

7.5 °C

13 Jan 2025

Wettest day

120.2 mm

29 Sep 2025

Windiest day

37.0 km/h

29 Sep 2025

Strongest gust

81.0 km/h

22 Jul 2025

Hottest feels-like

45.9 °C

2 Jun 2025

Coldest feels-like

5.9 °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 Phu Ly?

Phu Ly has a humid subtropical, dry winter climate (Köppen Cwa). Over 1940-2025, the average annual temperature is 24.1 °C and it receives 1,661 mm of precipitation per year.

What is the hottest day ever recorded in Phu Ly?

The hottest day measured in Phu Ly between 1940 and 2025 was 18 June 1971, reaching 42.1 °C.

What is the coldest day in Phu Ly?

The coldest day measured in Phu Ly between 1940 and 2025 was 12 January 1955, at 2.0 °C.

Does it snow in Phu Ly?

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

Has the climate of Phu Ly warmed?

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

What is the wettest day in Phu Ly?

The wettest day measured in Phu Ly between 1940 and 2025 was 24 October 1971, with 237 mm of rain in 24 hours.

What was the windiest day in Phu Ly?

The windiest day measured in Phu Ly between 1940 and 2025 was 27 September 2005, with winds reaching 51.9 km/h.

What is the warmest month in Phu Ly?

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

How much does it rain in Phu Ly?

Phu Ly receives on average 1,661 mm of precipitation per year, spread over about 163 rainy days.

Is it sunny in Phu Ly?

Phu Ly gets on average 7.2 hours of sunshine per day, roughly 2,628 hours per year over 1940-2025.

Are there tropical nights in Phu Ly?

Yes: Phu Ly has on average 231 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Phu Ly?

In Phu Ly, between 1940 and 2025, the highest apparent temperature reached 49.3 °C on 14 May 1969, and the lowest was -0.8 °C on 12 January 1955.

Compare Phu Ly with another city

Pick a second city: its normals will be set against these, indicator by indicator.

Nearby cities

The climate around Phu Ly

Other cities — Vietnam

All cities in Vietnam →