Japeri climate — normals and trends

Q: What is the climate of Japeri?

Japeri has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 22.6 °C and it receives 1,662 mm of precipitation per year.

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

The hottest day measured in Japeri between 1940 and 2025 was 28 September 1961, reaching 39.5 °C.

Q: What is the coldest day in Japeri?

The coldest day measured in Japeri between 1940 and 2025 was 18 July 2000, at 9.2 °C.

Q: Does it snow in Japeri?

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

Q: Has the climate of Japeri warmed?

Yes: Japeri warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Japeri?

The wettest day measured in Japeri between 1940 and 2025 was 11 March 1954, with 249 mm of rain in 24 hours.

Q: What was the windiest day in Japeri?

The windiest day measured in Japeri between 1940 and 2025 was 17 December 1989, with winds reaching 27.8 km/h.

Q: What is the warmest month in Japeri?

The warmest month in Japeri is February (25.7 °C on average); the coldest is July (19.4 °C).

Q: How much does it rain in Japeri?

Japeri receives on average 1,662 mm of precipitation per year, spread over about 177 rainy days.

Q: Is it sunny in Japeri?

Japeri gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Japeri (Brazil) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 22.6 °C and it receives 1,662 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 February (25.7 °C on average) and the coldest is July (19.4 °C). Rainfall peaks in January.

Japeri averages 0 frost days, 76 hot days (≥ 30 °C) and 177 rainy days per year.

Japeri has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The hottest day of the period reached 39.5 °C (on 28 September 1961) and the coldest 9.2 °C (on 18 July 2000).

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

JaperiRio de Janeiro

coords: -22.64°, -43.65°
period: 1940–2025 · 86 yrs

AmTropical monsoonWarmest monthFebruaryColdest monthJulyWettest monthJanuaryDriest monthJuly

Mean daily temperature

22.6°C

Average daily high

26.6°C

Average daily low

19.6°C

Annual rainfall

1,662mm

Sunshine / day

9.1h

Mean relative humidity

80%

Average peak wind

11.3km/h

Seasonal range

6.3°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

76 d/yr

Rainy days (≥ 1 mm)

177 d/yr

Annual snowfall

0.0 cm

Average feels-like high

29.8 °C

Average feels-like low

21.6 °C

Average peak gust

29.1 km/h

Tropical nights (≥ 20 °C)

170 d/yr

Solar radiation

16.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.57 · 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

39.5 °C

28 September 1961

Coldest day

9.2 °C

18 July 2000

Wettest day

249 mm

11 March 1954

Windiest day

27.8 km/h

17 December 1989

Strongest gust

68.8 km/h

7 June 2011

Hottest feels-like

45.8 °C

17 February 1994

Coldest feels-like

7.9 °C

1 June 1979

Sunniest day

13.4 h

28 December 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.0 °C17 February 2025	11.5 °C17 July 2025	22.9 °C	981 mm	97
2024	36.9 °C2 October 2024	11.2 °C14 August 2024	23.6 °C	1,403 mm	120
2023	39.5 °C18 November 2023	12.3 °C4 July 2023	23.4 °C	1,496 mm	123
2022	35.3 °C27 January 2022	11.5 °C16 June 2022	22.5 °C	1,698 mm	81
2021	36.5 °C14 September 2021	9.8 °C31 July 2021	22.4 °C	1,509 mm	89
2020	37.0 °C27 September 2020	11.4 °C27 May 2020	22.8 °C	1,623 mm	77
2019	37.1 °C18 September 2019	11.3 °C12 July 2019	23.7 °C	1,433 mm	114
2018	36.0 °C13 October 2018	12.2 °C22 May 2018	23.4 °C	1,466 mm	99
2017	35.2 °C16 November 2017	12.8 °C7 August 2017	23.2 °C	1,331 mm	104
2016	35.4 °C9 February 2016	10.3 °C15 June 2016	23.3 °C	1,435 mm	126
2015	37.4 °C24 September 2015	14.4 °C27 June 2015	23.9 °C	1,462 mm	116
2014	36.0 °C13 October 2014	12.6 °C8 August 2014	23.6 °C	965 mm	123
2013	37.3 °C12 November 2013	11.4 °C26 July 2013	22.8 °C	1,902 mm	81
2012	36.1 °C19 September 2012	12.6 °C27 September 2012	23.1 °C	1,318 mm	103
2011	35.2 °C28 January 2011	11.0 °C6 June 2011	22.6 °C	1,397 mm	90
2010	36.8 °C14 March 2010	11.6 °C8 June 2010	23.2 °C	1,542 mm	122
2009	35.7 °C19 November 2009	10.6 °C4 June 2009	23.2 °C	1,950 mm	94
2008	34.5 °C4 September 2008	11.7 °C15 July 2008	22.4 °C	1,943 mm	73
2007	35.8 °C10 March 2007	11.5 °C31 July 2007	23.2 °C	1,415 mm	106
2006	36.7 °C25 January 2006	12.6 °C6 September 2006	23.1 °C	1,487 mm	98
2005	38.0 °C14 October 2005	13.8 °C9 July 2005	23.3 °C	1,880 mm	92
2004	36.0 °C31 October 2004	12.7 °C11 August 2004	22.7 °C	1,562 mm	59
2003	37.2 °C16 December 2003	12.8 °C19 August 2003	23.3 °C	1,612 mm	112
2002	35.5 °C1 December 2002	13.3 °C3 September 2002	23.9 °C	1,253 mm	116
2001	34.0 °C11 February 2001	13.5 °C29 July 2001	23.3 °C	1,294 mm	109
2000	34.9 °C15 January 2000	9.2 °C18 July 2000	22.6 °C	1,359 mm	91
1999	36.3 °C2 February 1999	11.4 °C16 August 1999	22.2 °C	1,643 mm	69
1998	36.5 °C31 January 1998	12.7 °C7 June 1998	23.0 °C	1,711 mm	94
1997	36.3 °C9 September 1997	11.7 °C10 June 1997	23.1 °C	1,407 mm	120
1996	35.8 °C27 January 1996	11.3 °C3 August 1996	22.5 °C	2,045 mm	97
1995	37.1 °C10 January 1995	13.4 °C5 June 1995	23.1 °C	1,968 mm	109
1994	36.5 °C17 February 1994	9.5 °C27 June 1994	23.4 °C	1,698 mm	118
1993	36.3 °C16 December 1993	11.9 °C13 August 1993	23.3 °C	1,380 mm	117
1992	36.2 °C22 February 1992	12.4 °C27 July 1992	23.1 °C	1,658 mm	92
1991	33.8 °C15 October 1991	13.1 °C5 September 1991	22.9 °C	1,576 mm	69
1990	35.0 °C21 January 1990	11.5 °C24 June 1990	23.1 °C	1,496 mm	89
1989	33.6 °C22 February 1989	11.0 °C20 July 1989	22.6 °C	1,622 mm	61
1988	34.6 °C21 January 1988	9.3 °C6 June 1988	22.6 °C	1,848 mm	73
1987	34.5 °C15 August 1987	11.6 °C26 June 1987	23.1 °C	1,542 mm	81
1986	35.2 °C7 October 1986	11.9 °C13 July 1986	23.1 °C	1,665 mm	85
1985	35.0 °C27 August 1985	11.3 °C14 June 1985	22.5 °C	1,736 mm	50
1984	35.9 °C13 January 1984	12.3 °C27 August 1984	23.2 °C	1,394 mm	69
1983	34.7 °C26 February 1983	10.9 °C7 August 1983	22.8 °C	2,189 mm	50
1982	33.6 °C6 November 1982	12.9 °C1 August 1982	22.6 °C	1,786 mm	45
1981	35.6 °C29 September 1981	11.0 °C22 July 1981	22.4 °C	1,749 mm	53
1980	34.7 °C27 October 1980	12.5 °C18 June 1980	22.9 °C	1,531 mm	79
1979	34.1 °C18 November 1979	9.4 °C1 June 1979	22.1 °C	1,928 mm	58
1978	35.3 °C31 January 1978	10.6 °C2 June 1978	22.5 °C	1,588 mm	65
1977	35.0 °C28 February 1977	13.9 °C21 May 1977	23.3 °C	1,393 mm	83
1976	34.7 °C25 January 1976	11.3 °C16 August 1976	22.3 °C	1,925 mm	70
1975	33.9 °C9 December 1975	9.9 °C8 July 1975	22.3 °C	1,825 mm	60
1974	33.9 °C2 December 1974	11.3 °C16 June 1974	22.5 °C	1,514 mm	61
1973	36.3 °C11 February 1973	12.7 °C26 July 1973	23.0 °C	1,804 mm	71
1972	34.1 °C4 January 1972	12.4 °C23 June 1972	22.8 °C	1,660 mm	72
1971	34.6 °C20 January 1971	12.7 °C20 July 1971	22.4 °C	1,501 mm	69
1970	34.1 °C9 December 1970	12.9 °C13 August 1970	22.3 °C	1,170 mm	53
1969	35.7 °C15 February 1969	13.1 °C19 July 1969	22.4 °C	1,444 mm	58
1968	35.4 °C24 December 1968	12.0 °C14 July 1968	21.5 °C	1,144 mm	48
1967	34.5 °C14 January 1967	13.0 °C10 June 1967	22.6 °C	1,909 mm	52
1966	34.2 °C3 December 1966	12.6 °C24 September 1966	22.1 °C	2,083 mm	77
1965	34.3 °C21 December 1965	11.9 °C13 July 1965	22.0 °C	2,350 mm	47
1964	33.9 °C18 February 1964	10.3 °C29 July 1964	21.2 °C	1,934 mm	39
1963	35.8 °C14 October 1963	12.3 °C8 August 1963	22.3 °C	1,363 mm	82
1962	33.3 °C8 September 1962	11.4 °C30 July 1962	21.1 °C	2,252 mm	24
1961	39.5 °C28 September 1961	13.5 °C19 June 1961	22.8 °C	1,931 mm	92
1960	34.2 °C9 October 1960	11.0 °C15 July 1960	21.6 °C	1,841 mm	36
1959	33.9 °C26 February 1959	12.3 °C13 June 1959	22.4 °C	1,489 mm	86
1958	35.4 °C15 November 1958	11.7 °C22 June 1958	22.3 °C	1,872 mm	76
1957	34.2 °C19 October 1957	11.2 °C21 July 1957	21.8 °C	1,740 mm	45
1956	35.7 °C26 January 1956	11.6 °C12 July 1956	21.3 °C	1,451 mm	70
1955	34.7 °C14 September 1955	12.1 °C14 July 1955	21.7 °C	1,115 mm	69
1954	35.6 °C18 September 1954	12.3 °C30 August 1954	22.2 °C	2,254 mm	56
1953	34.9 °C30 January 1953	12.2 °C28 July 1953	22.1 °C	1,734 mm	59
1952	33.7 °C1 October 1952	12.6 °C16 July 1952	21.9 °C	1,825 mm	35
1951	36.3 °C23 November 1951	12.7 °C14 August 1951	21.6 °C	1,539 mm	68
1950	33.8 °C13 February 1950	11.5 °C14 July 1950	21.8 °C	1,895 mm	50
1949	32.9 °C16 February 1949	13.0 °C3 July 1949	21.4 °C	2,022 mm	33
1948	35.0 °C27 September 1948	12.5 °C30 August 1948	21.9 °C	1,483 mm	62
1947	35.3 °C8 January 1947	10.5 °C4 August 1947	21.4 °C	1,983 mm	44
1946	33.5 °C2 November 1946	12.2 °C26 July 1946	22.4 °C	2,116 mm	73
1945	33.3 °C28 September 1945	12.9 °C14 July 1945	22.2 °C	1,982 mm	59
1944	34.7 °C29 August 1944	12.1 °C13 July 1944	22.0 °C	1,839 mm	44
1943	33.3 °C19 January 1943	11.6 °C5 September 1943	21.0 °C	1,659 mm	29
1942	35.9 °C27 November 1942	9.8 °C24 June 1942	21.4 °C	1,424 mm	53
1941	34.6 °C12 January 1941	12.4 °C15 September 1941	22.1 °C	2,245 mm	44
1940	33.7 °C22 August 1940	13.4 °C28 September 1940	22.3 °C	2,370 mm	41

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

27.1 °C

+0.5 °C

Hot days (≥ 30 °C)

97 d/yr

+21

Frost days (< 0 °C)

0 d/yr

Annual rainfall

981 mm

-681 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	29.7 °C	+0.3 °C	204 mm	-62 mm
Feb	32.7 °C	+3.0 °C	28 mm	-187 mm
Mar	29.5 °C	+0.9 °C	111 mm	-100 mm
Apr	26.7 °C	-0.1 °C	152 mm	+30 mm
May	25.9 °C	+1.0 °C	39 mm	-33 mm
Jun	24.8 °C	+0.7 °C	32 mm	-12 mm
Jul	22.6 °C	-1.2 °C	23 mm	-18 mm
Aug	24.5 °C	-0.4 °C	11 mm	-35 mm
Sep	25.9 °C	+0.3 °C	47 mm	-35 mm
Oct	26.5 °C	+0.2 °C	110 mm	-23 mm
Nov	26.7 °C	0.0 °C	104 mm	-87 mm
Dec	30.3 °C	+2.3 °C	120 mm	-121 mm

The year's extremes

Hottest day

36.0 °C

17 Feb 2025

Coldest day

11.5 °C

17 Jul 2025

Wettest day

48.1 mm

19 Mar 2025

Windiest day

25.4 km/h

8 Nov 2025

Strongest gust

61.9 km/h

10 Dec 2025

Hottest feels-like

42.0 °C

19 Jan 2025

Coldest feels-like

10.7 °C

17 Jul 2025

Sunniest day

13.4 h

21 Dec 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 Japeri?

Japeri has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 22.6 °C and it receives 1,662 mm of precipitation per year.

What is the hottest day ever recorded in Japeri?

The hottest day measured in Japeri between 1940 and 2025 was 28 September 1961, reaching 39.5 °C.

What is the coldest day in Japeri?

The coldest day measured in Japeri between 1940 and 2025 was 18 July 2000, at 9.2 °C.

Does it snow in Japeri?

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

Has the climate of Japeri warmed?

Yes: Japeri warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Japeri?

The wettest day measured in Japeri between 1940 and 2025 was 11 March 1954, with 249 mm of rain in 24 hours.

What was the windiest day in Japeri?

The windiest day measured in Japeri between 1940 and 2025 was 17 December 1989, with winds reaching 27.8 km/h.

What is the warmest month in Japeri?

The warmest month in Japeri is February (25.7 °C on average); the coldest is July (19.4 °C).

How much does it rain in Japeri?

Japeri receives on average 1,662 mm of precipitation per year, spread over about 177 rainy days.

Is it sunny in Japeri?

Japeri gets on average 9.1 hours of sunshine per day, roughly 3,322 hours per year over 1940-2025.

Are there tropical nights in Japeri?

Yes: Japeri has on average 170 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Japeri?

In Japeri, between 1940 and 2025, the highest apparent temperature reached 45.8 °C on 17 February 1994, and the lowest was 7.9 °C on 1 June 1979.

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