Campo Maior climate — normals and trends

Q: What is the climate of Campo Maior?

Campo Maior has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.7 °C and it receives 1,271 mm of precipitation per year.

Q: What is the hottest day ever recorded in Campo Maior?

The hottest day measured in Campo Maior between 1940 and 2025 was 20 November 2005, reaching 41.2 °C.

Q: What is the coldest day in Campo Maior?

The coldest day measured in Campo Maior between 1940 and 2025 was 12 June 1974, at 19.4 °C.

Q: Does it snow in Campo Maior?

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

Q: Has the climate of Campo Maior warmed?

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

Q: What is the wettest day in Campo Maior?

The wettest day measured in Campo Maior between 1940 and 2025 was 21 April 1944, with 208 mm of rain in 24 hours.

Q: What was the windiest day in Campo Maior?

The windiest day measured in Campo Maior between 1940 and 2025 was 17 July 1947, with winds reaching 32.7 km/h.

Q: What is the warmest month in Campo Maior?

The warmest month in Campo Maior is October (31.3 °C on average); the coldest is March (26.3 °C).

Q: How much does it rain in Campo Maior?

Campo Maior receives on average 1,271 mm of precipitation per year, spread over about 121 rainy days.

Q: Is it sunny in Campo Maior?

Campo Maior gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

Campo Maior (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 28.7 °C and it receives 1,271 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 (31.3 °C on average) and the coldest is March (26.3 °C). Rainfall peaks in March.

Campo Maior averages 0 frost days, 329 hot days (≥ 30 °C) and 121 rainy days per year.

Campo Maior 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 41.2 °C (on 20 November 2005) and the coldest 19.4 °C (on 12 June 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

Campo MaiorPiauí

coords: -4.83°, -42.17°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthMarchWettest monthMarchDriest monthAugust

Mean daily temperature

28.7°C

Average daily high

33.8°C

Average daily low

24.2°C

Annual rainfall

1,271mm

Sunshine / day

10.8h

Mean relative humidity

63%

Average peak wind

15.5km/h

Seasonal range

5.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

329 d/yr

Rainy days (≥ 1 mm)

121 d/yr

Annual snowfall

0.0 cm

Average feels-like high

36.8 °C

Average feels-like low

27.2 °C

Average peak gust

33.2 km/h

Tropical nights (≥ 20 °C)

364 d/yr

Solar radiation

20.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.0 °C

since 1940

+0.1 °C per decade · r² = 0.16 · 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

41.2 °C

20 November 2005

Coldest day

19.4 °C

12 June 1974

Wettest day

208 mm

21 April 1944

Windiest day

32.7 km/h

17 July 1947

Strongest gust

58.3 km/h

17 July 1947

Hottest feels-like

43.8 °C

17 October 1997

Coldest feels-like

18.7 °C

4 July 1974

Sunniest day

12.2 h

5 November 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	39.5 °C12 October 2025	21.5 °C3 May 2025	29.4 °C	708 mm	352
2024	39.4 °C26 October 2024	19.8 °C26 July 2024	29.0 °C	1,055 mm	359
2023	39.9 °C28 October 2023	21.1 °C23 June 2023	28.7 °C	1,181 mm	341
2022	39.0 °C31 October 2022	19.9 °C26 July 2022	28.1 °C	1,155 mm	351
2021	38.6 °C11 September 2021	21.7 °C3 August 2021	28.9 °C	929 mm	350
2020	39.3 °C21 October 2020	20.5 °C13 August 2020	28.6 °C	1,383 mm	349
2019	40.5 °C25 October 2019	21.9 °C23 May 2019	29.2 °C	1,188 mm	357
2018	39.9 °C9 November 2018	21.7 °C21 July 2018	28.9 °C	1,347 mm	339
2017	40.5 °C5 January 2017	21.8 °C19 July 2017	29.7 °C	1,086 mm	349
2016	41.0 °C25 November 2016	21.7 °C27 March 2016	30.2 °C	856 mm	357
2015	40.1 °C26 September 2015	22.1 °C22 February 2015	29.9 °C	776 mm	354
2014	40.0 °C19 October 2014	22.6 °C26 January 2014	29.4 °C	965 mm	354
2013	39.9 °C24 September 2013	22.6 °C8 June 2013	29.9 °C	1,077 mm	355
2012	40.8 °C15 December 2012	22.0 °C17 February 2012	30.4 °C	763 mm	360
2011	39.9 °C25 September 2011	22.2 °C22 January 2011	28.9 °C	1,401 mm	339
2010	40.6 °C4 October 2010	21.8 °C22 June 2010	29.9 °C	996 mm	356
2009	39.6 °C9 December 2009	21.5 °C26 July 2009	28.7 °C	2,199 mm	334
2008	39.9 °C31 October 2008	21.6 °C23 June 2008	29.0 °C	1,356 mm	341
2007	40.3 °C21 January 2007	22.2 °C22 February 2007	29.6 °C	944 mm	353
2006	39.6 °C14 October 2006	21.0 °C2 June 2006	29.1 °C	1,501 mm	351
2005	41.2 °C20 November 2005	21.7 °C25 July 2005	29.4 °C	1,053 mm	355
2004	40.1 °C14 November 2004	21.9 °C23 May 2004	28.9 °C	1,389 mm	338
2003	39.2 °C23 October 2003	20.8 °C16 July 2003	28.8 °C	1,249 mm	351
2002	39.4 °C23 October 2002	21.5 °C17 April 2002	28.9 °C	1,182 mm	342
2001	40.0 °C31 October 2001	21.4 °C9 June 2001	28.5 °C	1,354 mm	335
2000	39.3 °C7 November 2000	21.0 °C14 February 2000	28.3 °C	1,260 mm	329
1999	39.3 °C10 November 1999	20.6 °C29 May 1999	28.2 °C	1,704 mm	327
1998	40.3 °C7 October 1998	21.9 °C21 December 1998	29.5 °C	1,045 mm	351
1997	39.8 °C1 October 1997	20.8 °C21 May 1997	28.5 °C	1,155 mm	339
1996	39.6 °C5 November 1996	20.6 °C26 June 1996	28.5 °C	1,900 mm	334
1995	39.0 °C14 November 1995	21.1 °C13 July 1995	28.2 °C	1,897 mm	333
1994	39.5 °C21 November 1994	21.5 °C12 July 1994	28.5 °C	1,638 mm	341
1993	40.5 °C9 December 1993	21.5 °C18 February 1993	29.5 °C	1,098 mm	352
1992	39.5 °C5 January 1992	21.5 °C22 July 1992	29.6 °C	815 mm	350
1991	39.1 °C22 November 1991	21.5 °C20 July 1991	28.7 °C	1,089 mm	340
1990	39.3 °C4 December 1990	21.7 °C5 March 1990	29.0 °C	698 mm	356
1989	38.8 °C29 October 1989	21.1 °C29 March 1989	28.2 °C	1,843 mm	334
1988	40.0 °C27 November 1988	21.4 °C2 August 1988	28.5 °C	1,659 mm	341
1987	40.8 °C28 November 1987	22.1 °C15 February 1987	29.6 °C	1,098 mm	351
1986	39.2 °C29 November 1986	20.2 °C16 June 1986	28.0 °C	1,803 mm	321
1985	39.1 °C22 October 1985	19.9 °C25 June 1985	27.6 °C	3,144 mm	294
1984	40.5 °C13 December 1984	21.2 °C26 June 1984	28.4 °C	1,677 mm	333
1983	39.9 °C19 December 1983	22.0 °C30 July 1983	30.0 °C	755 mm	350
1982	39.4 °C17 November 1982	21.7 °C19 February 1982	28.8 °C	1,100 mm	344
1981	40.0 °C26 October 1981	21.7 °C15 February 1981	29.3 °C	891 mm	343
1980	39.5 °C7 December 1980	21.3 °C1 March 1980	28.7 °C	1,472 mm	337
1979	39.9 °C10 October 1979	21.0 °C14 June 1979	28.2 °C	1,631 mm	344
1978	38.5 °C16 October 1978	20.7 °C7 June 1978	28.2 °C	1,429 mm	338
1977	39.2 °C22 November 1977	20.6 °C13 June 1977	28.0 °C	1,736 mm	328
1976	37.8 °C12 December 1976	21.3 °C29 January 1976	28.1 °C	1,209 mm	339
1975	37.7 °C14 October 1975	20.1 °C25 July 1975	27.5 °C	1,663 mm	315
1974	37.6 °C26 October 1974	19.4 °C12 June 1974	27.0 °C	2,322 mm	291
1973	38.6 °C15 November 1973	19.8 °C20 January 1973	27.8 °C	1,993 mm	331
1972	38.8 °C21 November 1972	21.1 °C25 June 1972	28.2 °C	1,334 mm	337
1971	38.1 °C7 November 1971	20.6 °C25 June 1971	27.6 °C	1,702 mm	317
1970	38.4 °C27 October 1970	21.6 °C16 March 1970	28.7 °C	858 mm	348
1969	38.2 °C6 October 1969	21.5 °C3 February 1969	28.4 °C	956 mm	348
1968	38.0 °C2 November 1968	20.4 °C25 May 1968	27.5 °C	1,348 mm	293
1967	37.2 °C26 October 1967	20.5 °C15 July 1967	27.5 °C	2,149 mm	293
1966	38.6 °C25 October 1966	21.5 °C17 April 1966	28.3 °C	1,207 mm	296
1965	39.1 °C17 November 1965	21.2 °C11 February 1965	28.6 °C	765 mm	311
1964	39.0 °C9 November 1964	21.1 °C2 June 1964	27.8 °C	1,365 mm	259
1963	39.6 °C17 October 1963	21.1 °C17 January 1963	28.2 °C	1,328 mm	272
1962	39.0 °C20 October 1962	21.3 °C19 June 1962	28.1 °C	939 mm	295
1961	39.3 °C24 November 1961	20.8 °C8 February 1961	28.2 °C	1,400 mm	279
1960	39.3 °C8 December 1960	21.2 °C10 May 1960	28.6 °C	1,241 mm	309
1959	39.1 °C1 December 1959	20.8 °C7 July 1959	28.3 °C	1,251 mm	283
1958	39.8 °C14 October 1958	21.9 °C4 March 1958	29.8 °C	556 mm	355
1957	39.2 °C16 December 1957	20.4 °C6 June 1957	28.5 °C	1,514 mm	285
1956	38.6 °C6 November 1956	20.3 °C25 May 1956	28.5 °C	1,070 mm	309
1955	38.9 °C10 January 1955	21.3 °C20 April 1955	28.3 °C	1,132 mm	292
1954	38.8 °C4 November 1954	21.3 °C27 May 1954	28.4 °C	1,050 mm	322
1953	39.3 °C7 December 1953	21.5 °C28 May 1953	28.6 °C	896 mm	325
1952	38.5 °C29 October 1952	21.1 °C15 June 1952	28.3 °C	1,230 mm	299
1951	38.9 °C11 November 1951	21.2 °C9 April 1951	29.1 °C	692 mm	334
1950	39.0 °C1 November 1950	20.9 °C27 May 1950	28.6 °C	1,315 mm	287
1949	39.3 °C10 October 1949	21.3 °C18 February 1949	28.3 °C	1,396 mm	286
1948	38.8 °C10 November 1948	21.2 °C23 January 1948	28.5 °C	1,006 mm	312
1947	38.7 °C10 October 1947	21.4 °C18 May 1947	28.0 °C	1,492 mm	309
1946	39.3 °C12 December 1946	21.6 °C13 May 1946	29.1 °C	755 mm	341
1945	39.1 °C10 November 1945	20.3 °C22 April 1945	28.1 °C	1,055 mm	301
1944	38.9 °C4 November 1944	21.1 °C31 May 1944	28.3 °C	1,749 mm	285
1943	39.3 °C24 October 1943	20.0 °C5 May 1943	28.0 °C	1,084 mm	294
1942	39.6 °C21 November 1942	21.5 °C14 March 1942	29.8 °C	553 mm	355
1941	39.8 °C23 October 1941	22.2 °C12 March 1941	29.7 °C	761 mm	348
1940	38.7 °C12 December 1940	21.1 °C11 February 1940	28.1 °C	1,343 mm	284

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

34.8 °C

+1.0 °C

Hot days (≥ 30 °C)

352 d/yr

+23

Frost days (< 0 °C)

0 d/yr

Annual rainfall

708 mm

-563 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	32.8 °C	+0.2 °C	199 mm	-7 mm
Feb	32.5 °C	+0.9 °C	101 mm	-147 mm
Mar	31.3 °C	+0.3 °C	248 mm	-77 mm
Apr	32.5 °C	+1.4 °C	108 mm	-147 mm
May	33.6 °C	+1.8 °C	9 mm	-88 mm
Jun	34.0 °C	+1.0 °C	1 mm	-16 mm
Jul	35.2 °C	+1.2 °C	0 mm	-6 mm
Aug	36.4 °C	+1.1 °C	2 mm	-0 mm
Sep	37.6 °C	+1.0 °C	0 mm	-3 mm
Oct	38.2 °C	+1.0 °C	3 mm	-7 mm
Nov	37.6 °C	+1.0 °C	6 mm	-16 mm
Dec	35.5 °C	+0.3 °C	31 mm	-48 mm

The year's extremes

Hottest day

39.5 °C

12 Oct 2025

Coldest day

21.5 °C

3 May 2025

Wettest day

27.5 mm

17 Mar 2025

Windiest day

27.5 km/h

2 Sep 2025

Strongest gust

51.1 km/h

2 Sep 2025

Hottest feels-like

41.2 °C

20 Oct 2025

Coldest feels-like

20.7 °C

13 Jul 2025

Sunniest day

12.1 h

14 Nov 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 Campo Maior?

Campo Maior has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 28.7 °C and it receives 1,271 mm of precipitation per year.

What is the hottest day ever recorded in Campo Maior?

The hottest day measured in Campo Maior between 1940 and 2025 was 20 November 2005, reaching 41.2 °C.

What is the coldest day in Campo Maior?

The coldest day measured in Campo Maior between 1940 and 2025 was 12 June 1974, at 19.4 °C.

Does it snow in Campo Maior?

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

Has the climate of Campo Maior warmed?

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

What is the wettest day in Campo Maior?

The wettest day measured in Campo Maior between 1940 and 2025 was 21 April 1944, with 208 mm of rain in 24 hours.

What was the windiest day in Campo Maior?

The windiest day measured in Campo Maior between 1940 and 2025 was 17 July 1947, with winds reaching 32.7 km/h.

What is the warmest month in Campo Maior?

The warmest month in Campo Maior is October (31.3 °C on average); the coldest is March (26.3 °C).

How much does it rain in Campo Maior?

Campo Maior receives on average 1,271 mm of precipitation per year, spread over about 121 rainy days.

Is it sunny in Campo Maior?

Campo Maior gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.

Are there tropical nights in Campo Maior?

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

What was the most extreme apparent temperature in Campo Maior?

In Campo Maior, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 17 October 1997, and the lowest was 18.7 °C on 4 July 1974.

Compare Campo Maior with another city

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

Nearby cities

The climate around Campo Maior

Other cities — Brazil

All cities in Brazil →