Bom Jardim climate — normals and trends

Q: What is the climate of Bom Jardim?

Bom Jardim has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 1,630 mm of precipitation per year.

Q: What is the hottest day ever recorded in Bom Jardim?

The hottest day measured in Bom Jardim between 1940 and 2025 was 12 December 1981, reaching 39.0 °C.

Q: What is the coldest day in Bom Jardim?

The coldest day measured in Bom Jardim between 1940 and 2025 was 27 July 1975, at 19.3 °C.

Q: Does it snow in Bom Jardim?

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

Q: Has the climate of Bom Jardim warmed?

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

Q: What is the wettest day in Bom Jardim?

The wettest day measured in Bom Jardim between 1940 and 2025 was 14 January 1980, with 184 mm of rain in 24 hours.

Q: What was the windiest day in Bom Jardim?

The windiest day measured in Bom Jardim between 1940 and 2025 was 16 August 1991, with winds reaching 23.8 km/h.

Q: What is the warmest month in Bom Jardim?

The warmest month in Bom Jardim is October (28.9 °C on average); the coldest is March (25.8 °C).

Q: How much does it rain in Bom Jardim?

Bom Jardim receives on average 1,630 mm of precipitation per year, spread over about 184 rainy days.

Q: Is it sunny in Bom Jardim?

Bom Jardim gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Bom Jardim (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 1,630 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 October (28.9 °C on average) and the coldest is March (25.8 °C). Rainfall peaks in March.

Bom Jardim averages 0 frost days, 286 hot days (≥ 30 °C) and 184 rainy days per year.

Bom Jardim 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 39.0 °C (on 12 December 1981) and the coldest 19.3 °C (on 27 July 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

Bom JardimMaranhão

coords: -3.54°, -45.61°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthMarchWettest monthMarchDriest monthSeptember

Mean daily temperature

27.1°C

Average daily high

31.9°C

Average daily low

23.5°C

Annual rainfall

1,630mm

Sunshine / day

10.6h

Mean relative humidity

78%

Average peak wind

11.7km/h

Seasonal range

3.1°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

286 d/yr

Rainy days (≥ 1 mm)

184 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.8 °C

Average feels-like low

27.7 °C

Average peak gust

32.2 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

18.5 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

39.0 °C

12 December 1981

Coldest day

19.3 °C

27 July 1975

Wettest day

184 mm

14 January 1980

Windiest day

23.8 km/h

16 August 1991

Strongest gust

58.7 km/h

25 September 1986

Hottest feels-like

43.6 °C

25 October 2017

Coldest feels-like

20.1 °C

4 July 1974

Sunniest day

12.0 h

2 January 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.8 °C27 October 2025	20.6 °C15 July 2025	27.6 °C	1,651 mm	328
2024	37.2 °C28 December 2024	19.6 °C17 July 2024	28.2 °C	1,281 mm	341
2023	37.0 °C25 September 2023	20.8 °C22 July 2023	27.8 °C	1,405 mm	331
2022	36.5 °C19 October 2022	20.0 °C22 August 2022	27.3 °C	1,695 mm	304
2021	35.2 °C14 December 2021	19.6 °C3 August 2021	27.3 °C	1,480 mm	323
2020	37.2 °C8 October 2020	19.4 °C8 August 2020	27.5 °C	1,798 mm	321
2019	36.2 °C27 October 2019	19.9 °C19 July 2019	27.6 °C	1,785 mm	336
2018	36.6 °C14 September 2018	20.5 °C6 July 2018	27.4 °C	1,703 mm	326
2017	38.6 °C4 December 2017	20.4 °C16 July 2017	28.0 °C	1,578 mm	333
2016	37.9 °C4 November 2016	20.1 °C27 July 2016	28.2 °C	1,215 mm	350
2015	38.2 °C1 December 2015	21.3 °C14 August 2015	27.9 °C	1,287 mm	342
2014	36.6 °C28 November 2014	20.9 °C19 August 2014	27.5 °C	1,661 mm	330
2013	36.3 °C2 October 2013	21.1 °C3 August 2013	27.7 °C	1,665 mm	344
2012	38.1 °C24 October 2012	20.1 °C2 August 2012	27.8 °C	1,388 mm	340
2011	37.3 °C25 September 2011	20.1 °C29 July 2011	27.4 °C	2,064 mm	316
2010	37.8 °C15 September 2010	20.2 °C27 June 2010	28.2 °C	1,404 mm	344
2009	37.2 °C12 November 2009	21.1 °C10 August 2009	27.4 °C	2,142 mm	320
2008	37.5 °C2 December 2008	20.9 °C1 July 2008	27.6 °C	1,892 mm	317
2007	37.5 °C26 October 2007	20.7 °C30 July 2007	27.9 °C	1,469 mm	331
2006	37.6 °C2 November 2006	20.9 °C5 August 2006	27.7 °C	1,820 mm	319
2005	37.9 °C18 November 2005	20.7 °C3 August 2005	27.9 °C	1,584 mm	332
2004	36.6 °C4 December 2004	20.8 °C24 July 2004	27.4 °C	1,529 mm	317
2003	36.6 °C12 January 2003	20.8 °C16 July 2003	27.3 °C	1,762 mm	329
2002	36.7 °C21 October 2002	21.5 °C15 June 2002	27.3 °C	1,832 mm	318
2001	36.7 °C18 October 2001	19.6 °C3 August 2001	27.1 °C	1,558 mm	308
2000	36.8 °C28 November 2000	21.0 °C24 July 2000	26.8 °C	1,733 mm	307
1999	37.0 °C10 November 1999	20.8 °C3 July 1999	26.9 °C	1,997 mm	305
1998	36.9 °C30 October 1998	21.4 °C25 July 1998	27.6 °C	1,368 mm	332
1997	37.1 °C27 September 1997	20.9 °C10 July 1997	27.3 °C	1,442 mm	312
1996	36.1 °C11 November 1996	20.3 °C4 July 1996	27.0 °C	2,035 mm	310
1995	37.4 °C15 October 1995	20.2 °C14 July 1995	27.0 °C	1,741 mm	301
1994	35.5 °C6 December 1994	21.1 °C1 July 1994	26.8 °C	1,962 mm	294
1993	36.6 °C7 December 1993	21.4 °C21 July 1993	27.2 °C	1,453 mm	324
1992	37.1 °C13 January 1992	20.9 °C22 July 1992	27.4 °C	1,259 mm	328
1991	36.5 °C24 September 1991	20.8 °C30 July 1991	27.1 °C	1,442 mm	299
1990	36.0 °C1 November 1990	21.6 °C7 August 1990	27.1 °C	1,142 mm	320
1989	35.0 °C20 October 1989	21.3 °C30 July 1989	26.6 °C	1,984 mm	261
1988	36.5 °C20 October 1988	20.1 °C3 August 1988	26.9 °C	1,808 mm	298
1987	37.4 °C28 November 1987	22.0 °C28 June 1987	27.5 °C	1,298 mm	323
1986	35.3 °C19 October 1986	21.4 °C12 June 1986	26.5 °C	2,111 mm	268
1985	36.3 °C22 October 1985	21.2 °C14 June 1985	26.3 °C	2,288 mm	228
1984	35.7 °C19 December 1984	19.9 °C27 July 1984	26.4 °C	1,877 mm	263
1983	36.0 °C6 December 1983	22.0 °C14 August 1983	27.5 °C	1,112 mm	336
1982	37.3 °C18 December 1982	21.6 °C1 July 1982	27.0 °C	1,468 mm	292
1981	39.0 °C12 December 1981	19.9 °C28 July 1981	27.4 °C	1,288 mm	320
1980	36.5 °C7 December 1980	21.3 °C6 July 1980	26.9 °C	1,923 mm	304
1979	35.5 °C10 August 1979	20.7 °C19 June 1979	26.7 °C	1,695 mm	300
1978	35.2 °C26 November 1978	21.1 °C5 August 1978	26.5 °C	2,054 mm	266
1977	36.9 °C22 November 1977	20.5 °C24 July 1977	26.5 °C	2,634 mm	246
1976	36.1 °C23 September 1976	19.6 °C20 July 1976	26.3 °C	1,842 mm	248
1975	34.5 °C12 November 1975	19.3 °C27 July 1975	26.1 °C	1,891 mm	233
1974	34.8 °C30 October 1974	20.2 °C23 July 1974	25.8 °C	2,445 mm	207
1973	35.8 °C16 November 1973	21.3 °C1 July 1973	26.3 °C	2,228 mm	249
1972	35.9 °C16 November 1972	20.9 °C22 July 1972	26.5 °C	1,780 mm	280
1971	35.5 °C13 December 1971	20.1 °C11 July 1971	26.1 °C	1,958 mm	223
1970	35.7 °C6 October 1970	19.6 °C24 July 1970	26.7 °C	1,693 mm	289
1969	35.9 °C26 November 1969	21.1 °C30 July 1969	27.1 °C	1,350 mm	309
1968	36.2 °C18 October 1968	20.6 °C25 June 1968	26.5 °C	1,621 mm	251
1967	36.6 °C10 December 1967	20.7 °C23 July 1967	26.6 °C	1,888 mm	249
1966	37.3 °C25 October 1966	21.6 °C13 June 1966	26.8 °C	1,830 mm	233
1965	37.8 °C7 November 1965	21.1 °C28 July 1965	27.0 °C	1,138 mm	242
1964	36.5 °C9 November 1964	21.2 °C2 June 1964	26.6 °C	1,587 mm	203
1963	37.3 °C1 October 1963	21.5 °C16 June 1963	27.0 °C	1,550 mm	251
1962	37.2 °C5 October 1962	20.3 °C20 June 1962	26.8 °C	1,719 mm	242
1961	38.0 °C16 October 1961	21.0 °C21 June 1961	26.8 °C	1,738 mm	240
1960	37.7 °C10 October 1960	21.1 °C9 July 1960	26.9 °C	1,898 mm	237
1959	37.3 °C16 October 1959	20.7 °C7 July 1959	26.8 °C	1,921 mm	236
1958	38.2 °C18 October 1958	22.0 °C3 March 1958	27.8 °C	932 mm	325
1957	37.9 °C24 November 1957	21.6 °C22 January 1957	27.0 °C	1,602 mm	241
1956	37.2 °C6 November 1956	21.0 °C8 July 1956	26.5 °C	1,565 mm	215
1955	37.4 °C22 September 1955	21.0 °C16 July 1955	26.6 °C	1,642 mm	222
1954	37.6 °C7 September 1954	20.9 °C28 July 1954	26.8 °C	1,382 mm	242
1953	36.9 °C22 October 1953	21.4 °C11 January 1953	26.9 °C	1,376 mm	250
1952	37.4 °C4 November 1952	21.0 °C30 June 1952	26.8 °C	1,615 mm	243
1951	37.0 °C25 September 1951	21.5 °C14 July 1951	27.4 °C	1,046 mm	299
1950	38.0 °C10 December 1950	20.6 °C13 July 1950	27.0 °C	1,331 mm	236
1949	37.4 °C21 October 1949	21.2 °C15 June 1949	26.7 °C	1,481 mm	221
1948	37.1 °C5 November 1948	21.9 °C3 January 1948	27.1 °C	1,330 mm	264
1947	37.2 °C9 October 1947	21.4 °C11 July 1947	26.7 °C	1,690 mm	239
1946	38.9 °C12 December 1946	21.3 °C9 January 1946	27.4 °C	867 mm	301
1945	36.9 °C10 November 1945	21.0 °C2 June 1945	27.0 °C	1,274 mm	260
1944	38.0 °C28 September 1944	21.6 °C26 June 1944	27.2 °C	1,720 mm	240
1943	36.8 °C24 October 1943	21.0 °C8 July 1943	26.4 °C	1,833 mm	205
1942	38.3 °C20 November 1942	21.1 °C9 July 1942	27.3 °C	1,217 mm	315
1941	38.8 °C17 October 1941	21.7 °C16 June 1941	27.8 °C	860 mm	318
1940	36.7 °C7 November 1940	21.0 °C6 July 1940	26.8 °C	1,540 mm	241

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

32.5 °C

+0.6 °C

Hot days (≥ 30 °C)

328 d/yr

+42

Frost days (< 0 °C)

0 d/yr

Annual rainfall

1651 mm

+21 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	31.5 °C	+0.6 °C	342 mm	+111 mm
Feb	30.6 °C	+0.3 °C	339 mm	+62 mm
Mar	31.1 °C	+1.1 °C	442 mm	+102 mm
Apr	31.5 °C	+1.5 °C	193 mm	-124 mm
May	31.5 °C	+1.1 °C	110 mm	-71 mm
Jun	31.1 °C	+0.5 °C	56 mm	-9 mm
Jul	31.7 °C	+0.2 °C	40 mm	+8 mm
Aug	32.9 °C	-0.3 °C	12 mm	-2 mm
Sep	34.9 °C	+0.7 °C	4 mm	-10 mm
Oct	35.1 °C	+0.4 °C	6 mm	-11 mm
Nov	34.7 °C	+0.4 °C	11 mm	-26 mm
Dec	33.0 °C	+0.1 °C	96 mm	-8 mm

The year's extremes

Hottest day

36.8 °C

27 Oct 2025

Coldest day

20.6 °C

15 Jul 2025

Wettest day

86.2 mm

14 Jan 2025

Windiest day

20.5 km/h

19 May 2025

Strongest gust

50.8 km/h

14 Oct 2025

Hottest feels-like

41.7 °C

18 Apr 2025

Coldest feels-like

23.9 °C

15 Jul 2025

Sunniest day

12.0 h

1 Jan 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 Bom Jardim?

Bom Jardim has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 1,630 mm of precipitation per year.

What is the hottest day ever recorded in Bom Jardim?

The hottest day measured in Bom Jardim between 1940 and 2025 was 12 December 1981, reaching 39.0 °C.

What is the coldest day in Bom Jardim?

The coldest day measured in Bom Jardim between 1940 and 2025 was 27 July 1975, at 19.3 °C.

Does it snow in Bom Jardim?

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

Has the climate of Bom Jardim warmed?

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

What is the wettest day in Bom Jardim?

The wettest day measured in Bom Jardim between 1940 and 2025 was 14 January 1980, with 184 mm of rain in 24 hours.

What was the windiest day in Bom Jardim?

The windiest day measured in Bom Jardim between 1940 and 2025 was 16 August 1991, with winds reaching 23.8 km/h.

What is the warmest month in Bom Jardim?

The warmest month in Bom Jardim is October (28.9 °C on average); the coldest is March (25.8 °C).

How much does it rain in Bom Jardim?

Bom Jardim receives on average 1,630 mm of precipitation per year, spread over about 184 rainy days.

Is it sunny in Bom Jardim?

Bom Jardim gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.

Are there tropical nights in Bom Jardim?

Yes: Bom Jardim has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Bom Jardim?

In Bom Jardim, between 1940 and 2025, the highest apparent temperature reached 43.6 °C on 25 October 2017, and the lowest was 20.1 °C on 4 July 1974.

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