Santa Rosa de Viterbo climate — normals and trends

Q: What is the climate of Santa Rosa de Viterbo?

Santa Rosa de Viterbo has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.0 °C and it receives 1,307 mm of precipitation per year.

Q: What is the hottest day ever recorded in Santa Rosa de Viterbo?

The hottest day measured in Santa Rosa de Viterbo between 1940 and 2025 was 17 October 2014, reaching 38.8 °C.

Q: What is the coldest day in Santa Rosa de Viterbo?

The coldest day measured in Santa Rosa de Viterbo between 1940 and 2025 was 21 July 1981, at 0.9 °C.

Q: Does it snow in Santa Rosa de Viterbo?

Almost never: Santa Rosa de Viterbo sees virtually no snow, with about 0 frost days per year.

Q: Has the climate of Santa Rosa de Viterbo warmed?

Yes: Santa Rosa de Viterbo warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Santa Rosa de Viterbo?

The wettest day measured in Santa Rosa de Viterbo between 1940 and 2025 was 24 December 1945, with 174 mm of rain in 24 hours.

Q: What was the windiest day in Santa Rosa de Viterbo?

The windiest day measured in Santa Rosa de Viterbo between 1940 and 2025 was 24 August 2024, with winds reaching 29.9 km/h.

Q: What is the warmest month in Santa Rosa de Viterbo?

The warmest month in Santa Rosa de Viterbo is February (24.0 °C on average); the coldest is June (18.4 °C).

Q: How much does it rain in Santa Rosa de Viterbo?

Santa Rosa de Viterbo receives on average 1,307 mm of precipitation per year, spread over about 147 rainy days.

Q: Is it sunny in Santa Rosa de Viterbo?

Santa Rosa de Viterbo gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.

Santa Rosa de Viterbo (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.0 °C and it receives 1,307 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 (24.0 °C on average) and the coldest is June (18.4 °C). Rainfall peaks in December.

Santa Rosa de Viterbo averages 0 frost days, 90 hot days (≥ 30 °C) and 147 rainy days per year.

Santa Rosa de Viterbo has warmed by +2.1 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.

The hottest day of the period reached 38.8 °C (on 17 October 2014) and the coldest 0.9 °C (on 21 July 1981).

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

Santa Rosa de ViterboSão Paulo

coords: -21.47°, -47.36°
period: 1940–2025 · 86 yrs

AwTropical savannaWarmest monthFebruaryColdest monthJuneWettest monthDecemberDriest monthAugust

Mean daily temperature

22.0°C

Average daily high

27.7°C

Average daily low

17.2°C

Annual rainfall

1,307mm

Sunshine / day

10.1h

Mean relative humidity

71%

Average peak wind

12.6km/h

Seasonal range

5.6°C

Frost days (< 0 °C)

0 d/yr

Hot days (≥ 30 °C)

90 d/yr

Rainy days (≥ 1 mm)

147 d/yr

Annual snowfall

0.0 cm

Average feels-like high

29.8 °C

Average feels-like low

17.8 °C

Average peak gust

30.4 km/h

Tropical nights (≥ 20 °C)

80 d/yr

Solar radiation

18.5 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.1 °C

since 1940

+0.2 °C per decade · r² = 0.65 · 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

38.8 °C

17 October 2014

Coldest day

0.9 °C

21 July 1981

Wettest day

174 mm

24 December 1945

Windiest day

29.9 km/h

24 August 2024

Strongest gust

79.6 km/h

28 November 1950

Hottest feels-like

42.0 °C

29 October 2007

Coldest feels-like

-2.5 °C

21 July 1981

Sunniest day

13.3 h

19 December 2024

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days
2025	36.1 °C6 October 2025	2.3 °C25 June 2025	22.5 °C	789 mm	147
2024	37.6 °C8 October 2024	4.7 °C11 August 2024	23.2 °C	1,081 mm	191
2023	38.3 °C14 November 2023	4.4 °C15 July 2023	22.6 °C	1,000 mm	148
2022	34.6 °C10 September 2022	3.9 °C21 May 2022	22.0 °C	968 mm	122
2021	37.5 °C21 September 2021	2.1 °C30 July 2021	22.4 °C	849 mm	141
2020	38.0 °C6 October 2020	5.4 °C28 May 2020	22.5 °C	1,003 mm	124
2019	37.3 °C12 September 2019	5.0 °C7 July 2019	23.2 °C	1,031 mm	154
2018	35.9 °C24 September 2018	5.9 °C12 July 2018	23.1 °C	988 mm	152
2017	37.4 °C14 October 2017	9.0 °C11 June 2017	23.2 °C	946 mm	161
2016	36.2 °C17 October 2016	3.7 °C13 June 2016	23.0 °C	1,293 mm	170
2015	38.1 °C16 October 2015	11.9 °C30 July 2015	23.6 °C	1,255 mm	154
2014	38.8 °C17 October 2014	9.3 °C4 June 2014	23.6 °C	734 mm	192
2013	35.7 °C11 November 2013	5.0 °C26 July 2013	22.2 °C	1,348 mm	109
2012	37.2 °C31 October 2012	6.2 °C15 July 2012	22.8 °C	1,125 mm	142
2011	35.3 °C30 September 2011	3.8 °C5 August 2011	22.5 °C	1,252 mm	128
2010	35.4 °C29 October 2010	7.1 °C16 August 2010	22.7 °C	1,047 mm	156
2009	34.1 °C13 January 2009	4.7 °C4 June 2009	22.5 °C	1,562 mm	99
2008	36.5 °C16 October 2008	7.3 °C15 July 2008	22.3 °C	1,215 mm	101
2007	36.6 °C29 October 2007	6.2 °C5 June 2007	23.0 °C	1,187 mm	150
2006	35.7 °C15 September 2006	7.8 °C6 September 2006	22.4 °C	1,174 mm	108
2005	35.3 °C17 October 2005	9.2 °C10 July 2005	22.6 °C	1,172 mm	121
2004	35.3 °C24 September 2004	7.1 °C28 May 2004	21.8 °C	1,422 mm	88
2003	35.4 °C25 September 2003	8.3 °C4 July 2003	22.5 °C	1,057 mm	102
2002	37.0 °C12 October 2002	7.2 °C3 September 2002	23.2 °C	994 mm	152
2001	34.9 °C10 September 2001	7.0 °C22 June 2001	22.5 °C	1,098 mm	133
2000	35.4 °C22 October 2000	3.1 °C18 July 2000	22.0 °C	1,528 mm	101
1999	36.0 °C1 October 1999	7.0 °C16 August 1999	22.1 °C	1,147 mm	112
1998	34.9 °C13 September 1998	7.5 °C13 July 1998	22.3 °C	1,348 mm	123
1997	35.4 °C12 October 1997	5.1 °C10 June 1997	22.2 °C	1,507 mm	118
1996	33.9 °C30 January 1996	5.6 °C13 July 1996	21.9 °C	1,615 mm	107
1995	35.7 °C18 January 1995	8.4 °C8 June 1995	22.3 °C	1,665 mm	116
1994	36.1 °C2 October 1994	1.5 °C28 June 1994	22.6 °C	1,317 mm	124
1993	34.5 °C30 November 1993	6.9 °C20 June 1993	22.1 °C	1,266 mm	91
1992	32.8 °C15 November 1992	9.4 °C15 August 1992	21.9 °C	1,428 mm	52
1991	33.6 °C30 October 1991	8.3 °C8 July 1991	22.0 °C	1,648 mm	81
1990	35.1 °C11 October 1990	4.3 °C19 May 1990	22.5 °C	1,136 mm	128
1989	32.7 °C24 September 1989	4.7 °C10 July 1989	21.6 °C	1,461 mm	73
1988	36.8 °C27 September 1988	1.8 °C6 June 1988	22.0 °C	1,310 mm	100
1987	35.4 °C18 October 1987	5.1 °C10 August 1987	22.4 °C	1,131 mm	117
1986	36.2 °C7 October 1986	6.2 °C5 June 1986	22.1 °C	1,252 mm	95
1985	37.3 °C17 November 1985	3.8 °C8 June 1985	22.0 °C	1,183 mm	95
1984	35.4 °C3 November 1984	6.8 °C27 August 1984	22.8 °C	1,069 mm	121
1983	33.2 °C17 February 1983	6.4 °C6 August 1983	21.9 °C	2,133 mm	54
1982	33.6 °C4 November 1982	9.6 °C15 July 1982	21.8 °C	1,638 mm	61
1981	35.0 °C20 September 1981	0.9 °C21 July 1981	22.0 °C	1,157 mm	93
1980	35.9 °C28 October 1980	6.7 °C15 June 1980	22.2 °C	1,204 mm	99
1979	34.8 °C25 October 1979	3.1 °C1 June 1979	21.6 °C	1,343 mm	77
1978	34.2 °C25 January 1978	5.1 °C2 June 1978	22.0 °C	1,167 mm	91
1977	34.5 °C28 February 1977	5.8 °C18 May 1977	22.3 °C	1,245 mm	102
1976	33.8 °C19 January 1976	6.3 °C6 July 1976	21.1 °C	1,676 mm	48
1975	33.7 °C8 September 1975	5.5 °C18 July 1975	21.8 °C	1,182 mm	104
1974	35.8 °C19 November 1974	7.3 °C17 August 1974	21.7 °C	1,407 mm	100
1973	34.8 °C22 February 1973	5.1 °C30 July 1973	22.3 °C	1,190 mm	114
1972	34.5 °C26 October 1972	5.9 °C9 July 1972	21.7 °C	1,496 mm	70
1971	35.0 °C25 January 1971	6.6 °C25 April 1971	21.7 °C	1,139 mm	77
1970	34.4 °C24 December 1970	8.2 °C15 July 1970	21.8 °C	953 mm	73
1969	35.1 °C11 September 1969	5.7 °C11 July 1969	22.5 °C	818 mm	116
1968	35.9 °C8 October 1968	6.2 °C18 May 1968	21.3 °C	803 mm	87
1967	34.2 °C6 September 1967	5.6 °C10 June 1967	22.0 °C	1,235 mm	83
1966	34.6 °C16 September 1966	7.9 °C7 August 1966	21.4 °C	1,386 mm	42
1965	34.4 °C5 September 1965	1.6 °C12 July 1965	20.9 °C	1,630 mm	30
1964	33.3 °C2 September 1964	5.9 °C28 July 1964	20.5 °C	1,895 mm	17
1963	38.3 °C18 October 1963	6.3 °C22 June 1963	22.6 °C	921 mm	108
1962	33.4 °C11 September 1962	5.0 °C8 July 1962	20.5 °C	1,745 mm	25
1961	38.2 °C28 September 1961	9.7 °C30 May 1961	22.4 °C	1,343 mm	82
1960	37.3 °C25 September 1960	6.8 °C10 July 1960	21.0 °C	1,628 mm	32
1959	34.3 °C4 October 1959	6.1 °C8 June 1959	22.0 °C	1,163 mm	78
1958	34.6 °C2 December 1958	7.6 °C20 June 1958	21.5 °C	1,102 mm	80
1957	36.3 °C20 October 1957	4.5 °C22 July 1957	21.2 °C	1,308 mm	41
1956	33.7 °C2 February 1956	6.1 °C27 July 1956	20.7 °C	1,182 mm	58
1955	36.7 °C17 September 1955	5.9 °C27 May 1955	21.7 °C	1,095 mm	73
1954	35.4 °C22 September 1954	7.4 °C22 June 1954	21.5 °C	1,600 mm	50
1953	32.7 °C21 August 1953	8.4 °C6 July 1953	21.4 °C	1,562 mm	15
1952	34.5 °C30 September 1952	6.0 °C16 July 1952	21.0 °C	1,377 mm	28
1951	34.2 °C19 November 1951	9.1 °C16 July 1951	21.1 °C	1,124 mm	52
1950	33.8 °C17 September 1950	7.0 °C11 June 1950	20.9 °C	1,687 mm	37
1949	34.6 °C13 October 1949	8.8 °C18 May 1949	21.0 °C	1,621 mm	29
1948	36.5 °C27 September 1948	7.4 °C16 June 1948	21.5 °C	1,171 mm	58
1947	33.3 °C9 January 1947	5.5 °C8 July 1947	20.7 °C	1,698 mm	16
1946	31.8 °C8 September 1946	5.8 °C28 July 1946	21.1 °C	1,628 mm	27
1945	32.5 °C29 September 1945	8.3 °C26 June 1945	20.9 °C	2,282 mm	18
1944	35.2 °C7 September 1944	8.7 °C11 July 1944	21.4 °C	1,529 mm	31
1943	31.1 °C17 January 1943	8.4 °C27 June 1943	20.2 °C	1,306 mm	3
1942	37.4 °C28 November 1942	3.8 °C19 June 1942	20.8 °C	1,088 mm	67
1941	31.3 °C10 January 1941	8.8 °C30 May 1941	21.1 °C	2,196 mm	16
1940	33.1 °C23 August 1940	9.8 °C19 August 1940	21.2 °C	1,747 mm	14

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

29.0 °C

+1.3 °C

Hot days (≥ 30 °C)

147 d/yr

+57

Frost days (< 0 °C)

0 d/yr

Annual rainfall

789 mm

-518 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	30.6 °C	+1.8 °C	141 mm	-78 mm
Feb	31.3 °C	+2.3 °C	74 mm	-100 mm
Mar	31.2 °C	+2.5 °C	78 mm	-61 mm
Apr	28.2 °C	+0.6 °C	88 mm	+19 mm
May	27.0 °C	+1.5 °C	5 mm	-43 mm
Jun	25.7 °C	+0.9 °C	28 mm	-3 mm
Jul	25.8 °C	+0.7 °C	4 mm	-21 mm
Aug	28.2 °C	+0.7 °C	5 mm	-19 mm
Sep	30.9 °C	+1.7 °C	13 mm	-49 mm
Oct	29.7 °C	+0.5 °C	114 mm	-15 mm
Nov	29.6 °C	+0.9 °C	103 mm	-62 mm
Dec	30.4 °C	+2.0 °C	136 mm	-86 mm

The year's extremes

Hottest day

36.1 °C

6 Oct 2025

Coldest day

2.3 °C

25 Jun 2025

Wettest day

29.8 mm

9 Dec 2025

Windiest day

26.6 km/h

10 Dec 2025

Strongest gust

60.8 km/h

8 Nov 2025

Hottest feels-like

40.3 °C

26 Dec 2025

Coldest feels-like

-0.5 °C

25 Jun 2025

Sunniest day

13.2 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 Santa Rosa de Viterbo?

Santa Rosa de Viterbo has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.0 °C and it receives 1,307 mm of precipitation per year.

What is the hottest day ever recorded in Santa Rosa de Viterbo?

The hottest day measured in Santa Rosa de Viterbo between 1940 and 2025 was 17 October 2014, reaching 38.8 °C.

What is the coldest day in Santa Rosa de Viterbo?

The coldest day measured in Santa Rosa de Viterbo between 1940 and 2025 was 21 July 1981, at 0.9 °C.

Does it snow in Santa Rosa de Viterbo?

Almost never: Santa Rosa de Viterbo sees virtually no snow, with about 0 frost days per year.

Has the climate of Santa Rosa de Viterbo warmed?

Yes: Santa Rosa de Viterbo warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Santa Rosa de Viterbo?

The wettest day measured in Santa Rosa de Viterbo between 1940 and 2025 was 24 December 1945, with 174 mm of rain in 24 hours.

What was the windiest day in Santa Rosa de Viterbo?

The windiest day measured in Santa Rosa de Viterbo between 1940 and 2025 was 24 August 2024, with winds reaching 29.9 km/h.

What is the warmest month in Santa Rosa de Viterbo?

The warmest month in Santa Rosa de Viterbo is February (24.0 °C on average); the coldest is June (18.4 °C).

How much does it rain in Santa Rosa de Viterbo?

Santa Rosa de Viterbo receives on average 1,307 mm of precipitation per year, spread over about 147 rainy days.

Is it sunny in Santa Rosa de Viterbo?

Santa Rosa de Viterbo gets on average 10.1 hours of sunshine per day, roughly 3,687 hours per year over 1940-2025.

Are there tropical nights in Santa Rosa de Viterbo?

Yes: Santa Rosa de Viterbo has on average 80 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Santa Rosa de Viterbo?

In Santa Rosa de Viterbo, between 1940 and 2025, the highest apparent temperature reached 42.0 °C on 29 October 2007, and the lowest was -2.5 °C on 21 July 1981.

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