Pedro II climate — normals and trends

Q: What is the climate of Pedro II?

Pedro II has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.6 °C and it receives 1,120 mm of precipitation per year.

Q: What is the hottest day ever recorded in Pedro II?

The hottest day measured in Pedro II between 1940 and 2025 was 21 January 2007, reaching 39.4 °C.

Q: What is the coldest day in Pedro II?

The coldest day measured in Pedro II between 1940 and 2025 was 16 May 1959, at 17.9 °C.

Q: Does it snow in Pedro II?

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

Q: Has the climate of Pedro II warmed?

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

Q: What is the wettest day in Pedro II?

The wettest day measured in Pedro II between 1940 and 2025 was 19 March 1985, with 235 mm of rain in 24 hours.

Q: What was the windiest day in Pedro II?

The windiest day measured in Pedro II between 1940 and 2025 was 16 July 1988, with winds reaching 33.4 km/h.

Q: What is the warmest month in Pedro II?

The warmest month in Pedro II is October (29.7 °C on average); the coldest is March (25.7 °C).

Q: How much does it rain in Pedro II?

Pedro II receives on average 1,120 mm of precipitation per year, spread over about 105 rainy days.

Q: Is it sunny in Pedro II?

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

Pedro II (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.6 °C and it receives 1,120 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 (29.7 °C on average) and the coldest is March (25.7 °C). Rainfall peaks in March.

Pedro II averages 0 frost days, 302 hot days (≥ 30 °C) and 105 rainy days per year.

Pedro II 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 39.4 °C (on 21 January 2007) and the coldest 17.9 °C (on 16 May 1959).

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

Pedro IIPiauí

coords: -4.42°, -41.46°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthOctoberColdest monthMarchWettest monthMarchDriest monthAugust

Mean daily temperature

27.6°C

Average daily high

32.8°C

Average daily low

22.8°C

Annual rainfall

1,120mm

Sunshine / day

11.0h

Mean relative humidity

61%

Average peak wind

17.3km/h

Seasonal range

4.0°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

302 d/yr

Rainy days (≥ 1 mm)

105 d/yr

Annual snowfall

0.0 cm

Average feels-like high

34.9 °C

Average feels-like low

25.1 °C

Average peak gust

37.5 km/h

Tropical nights (≥ 20 °C)

362 d/yr

Solar radiation

21.2 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

39.4 °C

21 January 2007

Coldest day

17.9 °C

16 May 1959

Wettest day

235 mm

19 March 1985

Windiest day

33.4 km/h

16 July 1988

Strongest gust

62.3 km/h

4 October 1958

Hottest feels-like

41.6 °C

28 October 2006

Coldest feels-like

16.6 °C

4 July 1974

Sunniest day

12.2 h

17 November 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	37.8 °C19 October 2025	19.6 °C3 May 2025	28.0 °C	659 mm	339
2024	37.4 °C9 October 2024	18.0 °C26 July 2024	27.7 °C	838 mm	336
2023	38.1 °C29 September 2023	20.1 °C27 January 2023	27.6 °C	1,341 mm	322
2022	37.3 °C31 October 2022	18.7 °C15 June 2022	27.1 °C	1,175 mm	328
2021	37.3 °C19 November 2021	20.5 °C2 August 2021	28.0 °C	867 mm	335
2020	37.6 °C11 October 2020	19.2 °C9 July 2020	27.4 °C	1,706 mm	332
2019	38.3 °C25 October 2019	20.5 °C23 May 2019	28.0 °C	1,113 mm	337
2018	37.8 °C21 November 2018	20.5 °C26 June 2018	27.9 °C	1,017 mm	324
2017	38.4 °C5 January 2017	20.8 °C27 July 2017	28.5 °C	920 mm	330
2016	38.6 °C5 October 2016	20.2 °C23 July 2016	28.9 °C	708 mm	349
2015	38.4 °C4 October 2015	21.0 °C8 July 2015	28.7 °C	623 mm	345
2014	38.4 °C19 October 2014	21.6 °C2 September 2014	28.5 °C	645 mm	348
2013	38.6 °C12 March 2013	20.4 °C20 May 2013	29.1 °C	617 mm	356
2012	39.2 °C31 October 2012	20.8 °C30 July 2012	29.4 °C	444 mm	355
2011	37.7 °C25 September 2011	20.4 °C27 July 2011	27.5 °C	1,367 mm	299
2010	38.8 °C14 March 2010	20.5 °C27 June 2010	28.9 °C	790 mm	352
2009	37.9 °C4 October 2009	19.6 °C25 July 2009	27.5 °C	2,095 mm	293
2008	38.2 °C8 November 2008	19.5 °C23 June 2008	27.8 °C	1,635 mm	309
2007	39.4 °C21 January 2007	21.1 °C24 February 2007	28.4 °C	819 mm	340
2006	38.4 °C26 January 2006	20.3 °C2 June 2006	28.0 °C	1,064 mm	318
2005	38.7 °C20 November 2005	20.7 °C25 July 2005	28.3 °C	814 mm	339
2004	38.3 °C8 January 2004	18.8 °C31 July 2004	27.7 °C	1,469 mm	315
2003	38.4 °C5 January 2003	19.9 °C28 June 2003	27.9 °C	1,013 mm	319
2002	38.2 °C6 December 2002	20.5 °C14 March 2002	28.0 °C	894 mm	331
2001	38.6 °C22 October 2001	20.0 °C16 March 2001	27.5 °C	1,383 mm	310
2000	37.8 °C7 November 2000	19.5 °C25 July 2000	27.1 °C	1,075 mm	293
1999	37.4 °C10 November 1999	18.6 °C11 July 1999	27.2 °C	1,510 mm	293
1998	38.4 °C5 December 1998	21.5 °C25 June 1998	28.9 °C	674 mm	348
1997	38.5 °C2 October 1997	19.0 °C12 June 1997	27.7 °C	783 mm	320
1996	37.7 °C1 January 1996	19.5 °C22 May 1996	27.4 °C	1,629 mm	303
1995	37.6 °C19 November 1995	19.9 °C22 July 1995	27.2 °C	1,574 mm	293
1994	37.4 °C20 December 1994	20.6 °C3 July 1994	27.3 °C	1,222 mm	295
1993	39.0 °C25 November 1993	20.3 °C15 July 1993	28.9 °C	585 mm	348
1992	38.0 °C13 December 1992	20.0 °C22 July 1992	28.1 °C	574 mm	344
1991	37.2 °C9 November 1991	19.7 °C21 July 1991	27.3 °C	959 mm	323
1990	37.1 °C30 November 1990	20.4 °C25 February 1990	28.0 °C	826 mm	346
1989	37.6 °C29 October 1989	19.8 °C1 August 1989	27.1 °C	1,597 mm	290
1988	38.1 °C27 November 1988	19.2 °C2 August 1988	27.4 °C	1,728 mm	312
1987	39.1 °C28 November 1987	20.5 °C22 June 1987	28.5 °C	731 mm	337
1986	37.0 °C8 December 1986	18.5 °C27 July 1986	26.8 °C	1,788 mm	276
1985	37.3 °C22 October 1985	19.1 °C25 June 1985	26.6 °C	2,816 mm	245
1984	38.8 °C13 December 1984	19.4 °C27 July 1984	27.3 °C	1,475 mm	290
1983	38.1 °C5 December 1983	20.6 °C3 July 1983	29.0 °C	437 mm	350
1982	38.0 °C29 December 1982	20.3 °C14 July 1982	27.5 °C	1,135 mm	328
1981	38.1 °C9 March 1981	20.3 °C6 August 1981	28.1 °C	821 mm	335
1980	37.7 °C27 November 1980	20.6 °C6 July 1980	27.8 °C	1,345 mm	325
1979	38.4 °C27 November 1979	19.8 °C18 June 1979	27.6 °C	1,069 mm	327
1978	36.6 °C20 December 1978	19.5 °C7 June 1978	27.2 °C	1,266 mm	313
1977	37.8 °C23 December 1977	19.1 °C14 July 1977	27.0 °C	1,497 mm	291
1976	37.4 °C27 December 1976	19.6 °C13 July 1976	27.2 °C	1,078 mm	321
1975	36.5 °C12 January 1975	18.1 °C11 June 1975	26.4 °C	1,580 mm	249
1974	36.7 °C27 October 1974	17.9 °C4 July 1974	26.1 °C	2,420 mm	223
1973	37.2 °C2 November 1973	19.4 °C1 August 1973	26.9 °C	1,811 mm	301
1972	38.5 °C16 November 1972	19.7 °C25 June 1972	27.4 °C	952 mm	328
1971	37.1 °C7 October 1971	19.2 °C25 June 1971	26.5 °C	1,515 mm	269
1970	37.2 °C11 January 1970	20.3 °C30 June 1970	27.7 °C	674 mm	330
1969	36.8 °C6 October 1969	19.6 °C16 August 1969	27.3 °C	921 mm	333
1968	36.5 °C22 November 1968	18.8 °C9 June 1968	26.5 °C	1,088 mm	257
1967	36.5 °C13 January 1967	19.6 °C25 February 1967	26.3 °C	2,091 mm	252
1966	37.5 °C25 October 1966	19.9 °C17 April 1966	27.4 °C	907 mm	257
1965	37.8 °C17 November 1965	19.2 °C11 February 1965	27.3 °C	751 mm	278
1964	36.9 °C9 November 1964	19.8 °C18 March 1964	26.6 °C	1,400 mm	211
1963	37.6 °C17 October 1963	20.2 °C8 May 1963	27.0 °C	1,547 mm	234
1962	37.3 °C3 October 1962	19.8 °C11 July 1962	27.2 °C	891 mm	271
1961	37.1 °C2 November 1961	20.2 °C14 February 1961	27.1 °C	1,449 mm	247
1960	37.4 °C2 December 1960	19.5 °C10 May 1960	27.4 °C	1,236 mm	276
1959	37.4 °C14 October 1959	17.9 °C16 May 1959	27.2 °C	1,221 mm	250
1958	38.4 °C4 November 1958	20.1 °C28 April 1958	28.8 °C	376 mm	349
1957	37.9 °C16 December 1957	19.5 °C6 June 1957	27.4 °C	1,198 mm	260
1956	37.8 °C21 November 1956	19.0 °C24 May 1956	27.5 °C	752 mm	284
1955	37.7 °C18 November 1955	19.2 °C27 May 1955	27.2 °C	1,147 mm	257
1954	37.0 °C25 October 1954	20.0 °C30 November 1954	27.4 °C	990 mm	285
1953	38.0 °C3 November 1953	20.9 °C6 March 1953	27.7 °C	690 mm	303
1952	37.8 °C3 December 1952	20.0 °C24 May 1952	27.3 °C	978 mm	273
1951	37.8 °C29 September 1951	20.4 °C12 January 1951	28.0 °C	589 mm	313
1950	37.1 °C28 September 1950	19.1 °C27 May 1950	27.2 °C	1,206 mm	249
1949	37.9 °C8 November 1949	20.3 °C2 June 1949	27.0 °C	1,212 mm	234
1948	37.1 °C19 November 1948	19.7 °C7 April 1948	27.3 °C	1,074 mm	270
1947	37.9 °C2 January 1947	20.3 °C13 August 1947	27.1 °C	1,169 mm	258
1946	37.7 °C12 December 1946	19.4 °C6 May 1946	28.0 °C	544 mm	332
1945	37.0 °C10 November 1945	18.7 °C16 June 1945	26.9 °C	1,037 mm	244
1944	36.9 °C4 November 1944	19.7 °C19 June 1944	27.0 °C	1,790 mm	237
1943	37.4 °C24 October 1943	19.2 °C5 May 1943	27.1 °C	885 mm	271
1942	38.2 °C21 November 1942	20.3 °C9 July 1942	28.7 °C	252 mm	359
1941	37.9 °C23 October 1941	19.7 °C23 July 1941	28.3 °C	541 mm	329
1940	37.3 °C1 November 1940	18.0 °C4 March 1940	27.0 °C	1,258 mm	233

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

33.4 °C

+0.6 °C

Hot days (≥ 30 °C)

339 d/yr

+37

Frost days (< 0 °C)

0 d/yr

Annual rainfall

659 mm

-461 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	32.3 °C	-0.1 °C	151 mm	-11 mm
Feb	32.1 °C	+0.9 °C	127 mm	-92 mm
Mar	30.5 °C	+0.2 °C	239 mm	-85 mm
Apr	31.4 °C	+1.2 °C	105 mm	-123 mm
May	31.7 °C	+0.8 °C	8 mm	-83 mm
Jun	31.7 °C	-0.1 °C	2 mm	-13 mm
Jul	33.4 °C	+0.9 °C	0 mm	-5 mm
Aug	34.5 °C	+0.7 °C	1 mm	-1 mm
Sep	35.6 °C	+0.6 °C	0 mm	-2 mm
Oct	36.4 °C	+0.7 °C	1 mm	-6 mm
Nov	36.2 °C	+0.7 °C	2 mm	-13 mm
Dec	34.4 °C	-0.1 °C	23 mm	-29 mm

The year's extremes

Hottest day

37.8 °C

19 Oct 2025

Coldest day

19.6 °C

3 May 2025

Wettest day

60.0 mm

17 Mar 2025

Windiest day

32.1 km/h

26 Oct 2025

Strongest gust

60.1 km/h

26 Oct 2025

Hottest feels-like

39.5 °C

19 Oct 2025

Coldest feels-like

18.9 °C

13 Jul 2025

Sunniest day

12.2 h

17 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 Pedro II?

Pedro II has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.6 °C and it receives 1,120 mm of precipitation per year.

What is the hottest day ever recorded in Pedro II?

The hottest day measured in Pedro II between 1940 and 2025 was 21 January 2007, reaching 39.4 °C.

What is the coldest day in Pedro II?

The coldest day measured in Pedro II between 1940 and 2025 was 16 May 1959, at 17.9 °C.

Does it snow in Pedro II?

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

Has the climate of Pedro II warmed?

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

What is the wettest day in Pedro II?

The wettest day measured in Pedro II between 1940 and 2025 was 19 March 1985, with 235 mm of rain in 24 hours.

What was the windiest day in Pedro II?

The windiest day measured in Pedro II between 1940 and 2025 was 16 July 1988, with winds reaching 33.4 km/h.

What is the warmest month in Pedro II?

The warmest month in Pedro II is October (29.7 °C on average); the coldest is March (25.7 °C).

How much does it rain in Pedro II?

Pedro II receives on average 1,120 mm of precipitation per year, spread over about 105 rainy days.

Is it sunny in Pedro II?

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

Are there tropical nights in Pedro II?

Yes: Pedro II has on average 362 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Pedro II?

In Pedro II, between 1940 and 2025, the highest apparent temperature reached 41.6 °C on 28 October 2006, and the lowest was 16.6 °C on 4 July 1974.

Compare Pedro II with another city

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

Nearby cities

The climate around Pedro II

Other cities — Brazil

All cities in Brazil →