Formosa do Rio Preto climate — normals and trends
Formosa do Rio Preto (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.0 °C and it receives 926 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 (27.6 °C on average) and the coldest is July (23.8 °C). Rainfall peaks in January.
Formosa do Rio Preto averages 0 frost days, 197 hot days (≥ 30 °C) and 105 rainy days per year.
Formosa do Rio Preto 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 20 October 1963) and the coldest 12.2 °C (on 29 June 2022).
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
Formosa do Rio PretoEstado de Bahia
- coords
- -11.05°, -45.19°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.0°C
Average daily high
30.4°C
Average daily low
20.4°C
Annual rainfall
926mm
Sunshine / day
10.8h
Mean relative humidity
63%
Average peak wind
12.3km/h
Seasonal range
3.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
197 d/yr
Rainy days (≥ 1 mm)
105 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.8 °C
Average feels-like low
21.6 °C
Average peak gust
31.3 km/h
Tropical nights (≥ 20 °C)
226 d/yr
Solar radiation
20.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.08 · p = 0.010
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
20 October 1963
Coldest day
12.2 °C
29 June 2022
Wettest day
193 mm
23 December 1944
Windiest day
27.3 km/h
14 November 1985
Strongest gust
58.0 km/h
16 December 2000
Hottest feels-like
41.6 °C
8 November 1987
Coldest feels-like
10.9 °C
29 June 2022
Sunniest day
12.4 h
23 November 1958
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.5 °C | +0.1 °C | 257 mm | +96 mm |
| Feb | 30.2 °C | +1.1 °C | 42 mm | -98 mm |
| Mar | 31.3 °C | +2.5 °C | 55 mm | -97 mm |
| Apr | 31.3 °C | +2.2 °C | 50 mm | -33 mm |
| May | 31.3 °C | +1.7 °C | 10 mm | -10 mm |
| Jun | 31.7 °C | +2.0 °C | 0 mm | -2 mm |
| Jul | 31.3 °C | +1.4 °C | 0 mm | -1 mm |
| Aug | 32.7 °C | +1.2 °C | 0 mm | -1 mm |
| Sep | 34.8 °C | +1.4 °C | 0 mm | -7 mm |
| Oct | 34.0 °C | +0.8 °C | 69 mm | +12 mm |
| Nov | 32.0 °C | +1.1 °C | 101 mm | -43 mm |
| Dec | 29.9 °C | +0.1 °C | 92 mm | -67 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 Formosa do Rio Preto?
Formosa do Rio Preto has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.0 °C and it receives 926 mm of precipitation per year.
What is the hottest day ever recorded in Formosa do Rio Preto?
The hottest day measured in Formosa do Rio Preto between 1940 and 2025 was 20 October 1963, reaching 39.2 °C.
What is the coldest day in Formosa do Rio Preto?
The coldest day measured in Formosa do Rio Preto between 1940 and 2025 was 29 June 2022, at 12.2 °C.
Does it snow in Formosa do Rio Preto?
Almost never: Formosa do Rio Preto sees virtually no snow, with about 0 frost days per year.
Has the climate of Formosa do Rio Preto warmed?
Yes: Formosa do Rio Preto warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Formosa do Rio Preto?
The wettest day measured in Formosa do Rio Preto between 1940 and 2025 was 23 December 1944, with 193 mm of rain in 24 hours.
What was the windiest day in Formosa do Rio Preto?
The windiest day measured in Formosa do Rio Preto between 1940 and 2025 was 14 November 1985, with winds reaching 27.3 km/h.
What is the warmest month in Formosa do Rio Preto?
The warmest month in Formosa do Rio Preto is October (27.6 °C on average); the coldest is July (23.8 °C).
How much does it rain in Formosa do Rio Preto?
Formosa do Rio Preto receives on average 926 mm of precipitation per year, spread over about 105 rainy days.
Is it sunny in Formosa do Rio Preto?
Formosa do Rio Preto gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Formosa do Rio Preto?
Yes: Formosa do Rio Preto has on average 226 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Formosa do Rio Preto?
In Formosa do Rio Preto, between 1940 and 2025, the highest apparent temperature reached 41.6 °C on 8 November 1987, and the lowest was 10.9 °C on 29 June 2022.
Compare Formosa 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 Formosa do Rio Preto