Patos climate — normals and trends

Q: What is the climate of Patos?

Patos has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 27.3 °C and it receives 389 mm of precipitation per year.

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

The hottest day measured in Patos between 1940 and 2025 was 9 March 1998, reaching 39.2 °C.

Q: What is the coldest day in Patos?

The coldest day measured in Patos between 1940 and 2025 was 5 August 1974, at 16.2 °C.

Q: Does it snow in Patos?

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

Q: Has the climate of Patos warmed?

Yes: Patos warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Patos?

The wettest day measured in Patos between 1940 and 2025 was 20 January 2003, with 156 mm of rain in 24 hours.

Q: What was the windiest day in Patos?

The windiest day measured in Patos between 1940 and 2025 was 17 June 1967, with winds reaching 33.5 km/h.

Q: What is the warmest month in Patos?

The warmest month in Patos is December (28.6 °C on average); the coldest is July (25.6 °C).

Q: How much does it rain in Patos?

Patos receives on average 389 mm of precipitation per year, spread over about 53 rainy days.

Q: Is it sunny in Patos?

Patos gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.

Patos (Brazil) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 27.3 °C and it receives 389 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 December (28.6 °C on average) and the coldest is July (25.6 °C). Rainfall peaks in March.

Patos averages 0 frost days, 338 hot days (≥ 30 °C) and 53 rainy days per year.

Patos has warmed by +0.6 °C between 1940 and 2025, or +0.07 °C per decade. This trend is statistically significant.

The hottest day of the period reached 39.2 °C (on 9 March 1998) and the coldest 16.2 °C (on 5 August 1974).

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

PatosParaíba

coords: -7.02°, -37.28°
period: 1940–2025 · 86 yrs

BShHot semi-aridWarmest monthDecemberColdest monthJulyWettest monthMarchDriest monthSeptember

Mean daily temperature

27.3°C

Average daily high

33.3°C

Average daily low

22.0°C

Annual rainfall

389mm

Sunshine / day

11.0h

Mean relative humidity

58%

Average peak wind

20.0km/h

Seasonal range

3.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

338 d/yr

Rainy days (≥ 1 mm)

53 d/yr

Annual snowfall

0.0 cm

Average feels-like high

34.5 °C

Average feels-like low

23.4 °C

Average peak gust

40.3 km/h

Tropical nights (≥ 20 °C)

334 d/yr

Solar radiation

21.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+0.6 °C

since 1940

+0.1 °C per decade · r² = 0.14 · 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

9 March 1998

Coldest day

16.2 °C

5 August 1974

Wettest day

156 mm

20 January 2003

Windiest day

33.5 km/h

17 June 1967

Strongest gust

64.1 km/h

4 July 2017

Hottest feels-like

42.6 °C

11 March 2010

Coldest feels-like

15.2 °C

31 July 1981

Sunniest day

12.4 h

24 December 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	37.1 °C5 November 2025	18.0 °C16 July 2025	27.4 °C	309 mm	348
2024	37.3 °C7 February 2024	18.2 °C3 September 2024	27.5 °C	332 mm	354
2023	37.1 °C25 October 2023	18.7 °C22 July 2023	27.4 °C	360 mm	338
2022	36.6 °C26 February 2022	17.6 °C25 July 2022	26.9 °C	422 mm	313
2021	37.3 °C1 December 2021	17.7 °C27 June 2021	27.5 °C	357 mm	344
2020	36.9 °C29 January 2020	17.7 °C13 July 2020	27.0 °C	779 mm	325
2019	37.8 °C3 December 2019	17.9 °C30 July 2019	27.6 °C	437 mm	345
2018	38.2 °C20 October 2018	18.5 °C30 June 2018	27.6 °C	387 mm	341
2017	37.9 °C25 January 2017	18.7 °C14 July 2017	27.8 °C	252 mm	339
2016	37.9 °C6 December 2016	17.8 °C22 July 2016	28.0 °C	317 mm	358
2015	37.9 °C6 November 2015	18.4 °C3 August 2015	27.8 °C	178 mm	353
2014	37.4 °C18 January 2014	18.0 °C26 May 2014	27.2 °C	262 mm	340
2013	38.0 °C4 December 2013	17.9 °C24 June 2013	27.9 °C	136 mm	354
2012	37.5 °C17 April 2012	17.5 °C29 July 2012	27.7 °C	66 mm	355
2011	36.8 °C10 February 2011	16.5 °C15 July 2011	26.7 °C	488 mm	319
2010	38.8 °C8 March 2010	17.9 °C21 August 2010	27.7 °C	313 mm	351
2009	37.3 °C11 February 2009	18.1 °C17 June 2009	27.0 °C	587 mm	331
2008	37.1 °C8 January 2008	16.7 °C5 July 2008	26.6 °C	1,040 mm	298
2007	37.4 °C10 February 2007	17.7 °C18 August 2007	27.2 °C	238 mm	343
2006	36.9 °C28 December 2006	18.6 °C19 July 2006	27.4 °C	337 mm	335
2005	37.5 °C10 January 2005	18.5 °C7 August 2005	27.2 °C	322 mm	324
2004	37.1 °C3 January 2004	18.6 °C12 July 2004	27.4 °C	599 mm	321
2003	37.7 °C27 December 2003	19.1 °C28 June 2003	27.7 °C	492 mm	338
2002	37.0 °C19 December 2002	18.1 °C7 July 2002	27.2 °C	365 mm	337
2001	37.3 °C7 February 2001	18.7 °C14 August 2001	27.7 °C	174 mm	350
2000	37.2 °C28 January 2000	18.1 °C24 July 2000	26.8 °C	506 mm	317
1999	37.9 °C6 March 1999	17.5 °C10 July 1999	27.5 °C	379 mm	354
1998	39.2 °C9 March 1998	19.2 °C22 July 1998	28.7 °C	116 mm	360
1997	38.2 °C3 December 1997	17.7 °C6 July 1997	27.4 °C	445 mm	332
1996	37.9 °C7 February 1996	17.1 °C11 August 1996	27.3 °C	482 mm	336
1995	37.9 °C29 December 1995	17.0 °C11 July 1995	27.3 °C	572 mm	333
1994	38.1 °C1 January 1994	19.0 °C3 August 1994	27.2 °C	429 mm	330
1993	38.0 °C22 February 1993	19.2 °C17 July 1993	28.2 °C	76 mm	356
1992	36.9 °C5 December 1992	17.3 °C23 August 1992	27.2 °C	274 mm	340
1991	38.0 °C27 February 1991	17.5 °C25 July 1991	27.1 °C	449 mm	333
1990	37.7 °C14 March 1990	18.9 °C11 June 1990	27.7 °C	177 mm	350
1989	37.8 °C7 February 1989	17.3 °C10 July 1989	27.3 °C	622 mm	329
1988	37.6 °C31 January 1988	18.1 °C30 July 1988	27.5 °C	432 mm	351
1987	37.6 °C6 November 1987	18.9 °C8 September 1987	27.9 °C	352 mm	360
1986	37.4 °C21 January 1986	17.6 °C26 July 1986	26.8 °C	591 mm	332
1985	36.8 °C15 January 1985	18.6 °C20 July 1985	26.5 °C	1,088 mm	305
1984	39.1 °C18 February 1984	17.5 °C27 July 1984	27.4 °C	435 mm	341
1983	37.6 °C4 April 1983	18.1 °C29 July 1983	27.9 °C	177 mm	359
1982	37.9 °C25 March 1982	18.0 °C13 July 1982	27.5 °C	203 mm	355
1981	38.1 °C9 March 1981	16.8 °C31 July 1981	27.0 °C	342 mm	334
1980	39.0 °C30 January 1980	18.1 °C13 September 1980	27.5 °C	302 mm	356
1979	37.9 °C18 February 1979	18.5 °C1 August 1979	27.6 °C	153 mm	357
1978	38.1 °C22 January 1978	18.4 °C1 August 1978	27.2 °C	456 mm	342
1977	38.3 °C25 March 1977	17.8 °C14 July 1977	27.1 °C	529 mm	330
1976	37.2 °C28 December 1976	16.8 °C31 July 1976	27.2 °C	389 mm	354
1975	37.2 °C9 November 1975	17.5 °C24 July 1975	27.0 °C	446 mm	331
1974	37.1 °C24 December 1974	16.2 °C5 August 1974	26.1 °C	1,119 mm	275
1973	37.2 °C25 December 1973	19.5 °C21 April 1973	27.4 °C	723 mm	340
1972	38.0 °C3 February 1972	19.4 °C24 August 1972	27.9 °C	258 mm	358
1971	37.2 °C10 February 1971	18.5 °C23 June 1971	27.1 °C	577 mm	324
1970	37.7 °C15 October 1970	18.4 °C2 August 1970	27.6 °C	280 mm	352
1969	37.7 °C21 February 1969	18.3 °C16 July 1969	27.7 °C	258 mm	357
1968	36.9 °C13 November 1968	18.1 °C18 July 1968	26.8 °C	296 mm	329
1967	37.4 °C16 January 1967	17.4 °C29 June 1967	26.2 °C	829 mm	284
1966	36.8 °C25 October 1966	19.0 °C28 August 1966	27.1 °C	320 mm	337
1965	37.0 °C16 October 1965	18.5 °C30 January 1965	27.1 °C	268 mm	346
1964	37.0 °C6 February 1964	18.3 °C17 April 1964	26.2 °C	701 mm	284
1963	37.6 °C20 October 1963	18.6 °C9 July 1963	27.3 °C	415 mm	350
1962	37.1 °C21 October 1962	18.0 °C17 August 1962	27.9 °C	134 mm	358
1961	37.3 °C8 November 1961	18.2 °C13 August 1961	26.9 °C	473 mm	337
1960	37.4 °C5 February 1960	18.9 °C7 July 1960	27.0 °C	457 mm	321
1959	37.2 °C12 December 1959	18.2 °C27 July 1959	27.2 °C	303 mm	343
1958	37.5 °C8 January 1958	19.1 °C15 August 1958	27.8 °C	98 mm	359
1957	37.1 °C16 December 1957	18.6 °C20 July 1957	26.9 °C	470 mm	315
1956	36.6 °C28 January 1956	17.4 °C30 July 1956	27.4 °C	222 mm	348
1955	36.9 °C22 November 1955	17.7 °C10 August 1955	26.9 °C	323 mm	335
1954	37.0 °C1 January 1954	18.4 °C29 July 1954	26.8 °C	284 mm	345
1953	37.5 °C25 March 1953	19.1 °C21 August 1953	27.8 °C	82 mm	359
1952	37.7 °C27 January 1952	18.3 °C1 September 1952	27.3 °C	337 mm	350
1951	37.3 °C16 March 1951	18.5 °C15 July 1951	27.0 °C	280 mm	341
1950	37.4 °C3 January 1950	18.7 °C30 June 1950	26.9 °C	424 mm	334
1949	37.3 °C10 December 1949	18.7 °C1 August 1949	26.9 °C	440 mm	345
1948	36.9 °C19 November 1948	19.0 °C28 April 1948	26.9 °C	413 mm	341
1947	36.5 °C17 January 1947	18.5 °C14 August 1947	26.9 °C	430 mm	341
1946	37.8 °C23 February 1946	18.5 °C6 August 1946	27.6 °C	84 mm	360
1945	37.4 °C31 January 1945	18.0 °C10 August 1945	26.5 °C	527 mm	322
1944	36.5 °C9 November 1944	18.3 °C27 August 1944	26.2 °C	662 mm	256
1943	37.2 °C20 February 1943	17.9 °C28 August 1943	26.5 °C	188 mm	338
1942	36.8 °C13 November 1942	17.2 °C9 July 1942	27.2 °C	78 mm	348
1941	36.9 °C23 February 1941	18.3 °C23 July 1941	27.2 °C	204 mm	354
1940	36.7 °C8 December 1940	18.6 °C2 July 1940	26.4 °C	549 mm	314

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

33.3 °C

0.0 °C

Hot days (≥ 30 °C)

348 d/yr

+10

Frost days (< 0 °C)

0 d/yr

Annual rainfall

309 mm

-80 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	33.3 °C	-1.1 °C	148 mm	+101 mm
Feb	33.5 °C	-0.2 °C	22 mm	-55 mm
Mar	33.4 °C	+0.5 °C	39 mm	-79 mm
Apr	34.2 °C	+1.7 °C	28 mm	-54 mm
May	32.5 °C	+0.2 °C	52 mm	+24 mm
Jun	31.2 °C	-0.3 °C	13 mm	+2 mm
Jul	31.3 °C	-0.1 °C	2 mm	-3 mm
Aug	32.1 °C	-0.3 °C	4 mm	+2 mm
Sep	32.9 °C	-0.9 °C	0 mm	-0 mm
Oct	34.3 °C	-0.6 °C	0 mm	-2 mm
Nov	35.5 °C	+0.4 °C	0 mm	-4 mm
Dec	35.5 °C	+0.5 °C	1 mm	-13 mm

The year's extremes

Hottest day

37.1 °C

5 Nov 2025

Coldest day

18.0 °C

16 Jul 2025

Wettest day

42.9 mm

21 May 2025

Windiest day

29.9 km/h

25 Oct 2025

Strongest gust

57.2 km/h

5 Oct 2025

Hottest feels-like

39.5 °C

29 Apr 2025

Coldest feels-like

17.3 °C

16 Jul 2025

Sunniest day

12.4 h

24 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 Patos?

Patos has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 27.3 °C and it receives 389 mm of precipitation per year.

What is the hottest day ever recorded in Patos?

The hottest day measured in Patos between 1940 and 2025 was 9 March 1998, reaching 39.2 °C.

What is the coldest day in Patos?

The coldest day measured in Patos between 1940 and 2025 was 5 August 1974, at 16.2 °C.

Does it snow in Patos?

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

Has the climate of Patos warmed?

Yes: Patos warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Patos?

The wettest day measured in Patos between 1940 and 2025 was 20 January 2003, with 156 mm of rain in 24 hours.

What was the windiest day in Patos?

The windiest day measured in Patos between 1940 and 2025 was 17 June 1967, with winds reaching 33.5 km/h.

What is the warmest month in Patos?

The warmest month in Patos is December (28.6 °C on average); the coldest is July (25.6 °C).

How much does it rain in Patos?

Patos receives on average 389 mm of precipitation per year, spread over about 53 rainy days.

Is it sunny in Patos?

Patos gets on average 11.0 hours of sunshine per day, roughly 4,015 hours per year over 1940-2025.

Are there tropical nights in Patos?

Yes: Patos has on average 334 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Patos?

In Patos, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 11 March 2010, and the lowest was 15.2 °C on 31 July 1981.

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