São Benedito do Rio Preto climate — normals and trends
São Benedito do Rio Preto (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 27.1 °C and it receives 1,552 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 (28.7 °C on average) and the coldest is March (25.8 °C). Rainfall peaks in March.
São Benedito do Rio Preto averages 0 frost days, 297 hot days (≥ 30 °C) and 161 rainy days per year.
São Benedito do Rio Preto has warmed by +0.9 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.0 °C (on 14 December 2012) and the coldest 18.2 °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
São Benedito do Rio PretoMaranhão
- coords
- -3.33°, -43.53°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.1°C
Average daily high
32.3°C
Average daily low
23.4°C
Annual rainfall
1,552mm
Sunshine / day
10.5h
Mean relative humidity
75%
Average peak wind
14.4km/h
Seasonal range
2.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
297 d/yr
Rainy days (≥ 1 mm)
161 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.2 °C
Average feels-like low
27.1 °C
Average peak gust
34.7 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
19.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.24 · p = < 0.001
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
40.0 °C
14 December 2012
Coldest day
18.2 °C
27 July 1975
Wettest day
162 mm
27 January 1988
Windiest day
25.7 km/h
9 November 1965
Strongest gust
63.4 km/h
10 November 1996
Hottest feels-like
42.5 °C
4 October 2009
Coldest feels-like
19.1 °C
4 July 1974
Sunniest day
12.0 h
2 January 1940
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?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 31.7 °C | +0.2 °C | 224 mm | +22 mm |
| Feb | 30.9 °C | +0.3 °C | 343 mm | +80 mm |
| Mar | 31.0 °C | +0.8 °C | 374 mm | +21 mm |
| Apr | 31.3 °C | +1.0 °C | 167 mm | -153 mm |
| May | 31.0 °C | +0.5 °C | 141 mm | -60 mm |
| Jun | 31.1 °C | +0.5 °C | 22 mm | -41 mm |
| Jul | 32.2 °C | +0.6 °C | 17 mm | -14 mm |
| Aug | 33.7 °C | +0.3 °C | 10 mm | +2 mm |
| Sep | 35.5 °C | +0.8 °C | 1 mm | -5 mm |
| Oct | 36.0 °C | +0.9 °C | 1 mm | -9 mm |
| Nov | 35.3 °C | +0.5 °C | 2 mm | -19 mm |
| Dec | 33.4 °C | -0.3 °C | 47 mm | -30 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of São Benedito do Rio Preto?
São Benedito do Rio Preto has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 27.1 °C and it receives 1,552 mm of precipitation per year.
What is the hottest day ever recorded in São Benedito do Rio Preto?
The hottest day measured in São Benedito do Rio Preto between 1940 and 2025 was 14 December 2012, reaching 40.0 °C.
What is the coldest day in São Benedito do Rio Preto?
The coldest day measured in São Benedito do Rio Preto between 1940 and 2025 was 27 July 1975, at 18.2 °C.
Does it snow in São Benedito do Rio Preto?
Almost never: São Benedito do Rio Preto sees virtually no snow, with about 0 frost days per year.
Has the climate of São Benedito do Rio Preto warmed?
Yes: São Benedito do Rio Preto warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São Benedito do Rio Preto?
The wettest day measured in São Benedito do Rio Preto between 1940 and 2025 was 27 January 1988, with 162 mm of rain in 24 hours.
What was the windiest day in São Benedito do Rio Preto?
The windiest day measured in São Benedito do Rio Preto between 1940 and 2025 was 9 November 1965, with winds reaching 25.7 km/h.
What is the warmest month in São Benedito do Rio Preto?
The warmest month in São Benedito do Rio Preto is October (28.7 °C on average); the coldest is March (25.8 °C).
How much does it rain in São Benedito do Rio Preto?
São Benedito do Rio Preto receives on average 1,552 mm of precipitation per year, spread over about 161 rainy days.
Is it sunny in São Benedito do Rio Preto?
São Benedito do Rio Preto gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
Are there tropical nights in São Benedito do Rio Preto?
Yes: São Benedito do Rio Preto has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Benedito do Rio Preto?
In São Benedito do Rio Preto, between 1940 and 2025, the highest apparent temperature reached 42.5 °C on 4 October 2009, and the lowest was 19.1 °C on 4 July 1974.
Compare São Benedito do Rio Preto with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around São Benedito do Rio Preto