Piatã climate — normals and trends
Piatã (Brazil) has a subtropical highland, dry winter climate (Cwb) under the Köppen-Geiger classification. Its mean annual temperature is 20.1 °C and it receives 887 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 (21.5 °C on average) and the coldest is July (17.4 °C). Rainfall peaks in November.
Piatã averages 0 frost days, 12 hot days (≥ 30 °C) and 103 rainy days per year.
Piatã has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 34.5 °C (on 23 October 1954) and the coldest 7.4 °C (on 10 August 1994).
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
PiatãEstado de Bahia
- coords
- -13.15°, -41.77°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
20.1°C
Average daily high
25.4°C
Average daily low
15.5°C
Annual rainfall
887mm
Sunshine / day
10.8h
Mean relative humidity
74%
Average peak wind
12.5km/h
Seasonal range
4.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
103 d/yr
Annual snowfall
0.0 cm
Average feels-like high
26.7 °C
Average feels-like low
16.1 °C
Average peak gust
33.7 km/h
Tropical nights (≥ 20 °C)
1 d/yr
Solar radiation
19.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.22 · 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
34.5 °C
23 October 1954
Coldest day
7.4 °C
10 August 1994
Wettest day
146 mm
9 March 1969
Windiest day
25.6 km/h
14 August 1991
Strongest gust
66.6 km/h
13 November 1985
Hottest feels-like
37.7 °C
5 October 2015
Coldest feels-like
5.5 °C
24 June 1942
Sunniest day
12.7 h
10 December 2025
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 | 27.5 °C | +1.1 °C | 124 mm | +10 mm |
| Feb | 27.6 °C | +1.0 °C | 28 mm | -63 mm |
| Mar | 28.9 °C | +2.4 °C | 11 mm | -111 mm |
| Apr | 28.0 °C | +2.4 °C | 70 mm | -9 mm |
| May | 24.9 °C | +0.5 °C | 30 mm | -1 mm |
| Jun | 24.6 °C | +1.3 °C | 8 mm | -3 mm |
| Jul | 23.9 °C | +1.1 °C | 4 mm | -4 mm |
| Aug | 25.5 °C | +1.5 °C | 5 mm | -1 mm |
| Sep | 26.8 °C | +0.9 °C | 4 mm | -13 mm |
| Oct | 27.3 °C | +0.5 °C | 28 mm | -51 mm |
| Nov | 26.9 °C | +0.9 °C | 184 mm | -2 mm |
| Dec | 27.4 °C | +1.3 °C | 77 mm | -68 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 Piatã?
Piatã has a subtropical highland, dry winter climate (Köppen Cwb). Over 1940-2025, the average annual temperature is 20.1 °C and it receives 887 mm of precipitation per year.
What is the hottest day ever recorded in Piatã?
The hottest day measured in Piatã between 1940 and 2025 was 23 October 1954, reaching 34.5 °C.
What is the coldest day in Piatã?
The coldest day measured in Piatã between 1940 and 2025 was 10 August 1994, at 7.4 °C.
Does it snow in Piatã?
Almost never: Piatã sees virtually no snow, with about 0 frost days per year.
Has the climate of Piatã warmed?
Yes: Piatã warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Piatã?
The wettest day measured in Piatã between 1940 and 2025 was 9 March 1969, with 146 mm of rain in 24 hours.
What was the windiest day in Piatã?
The windiest day measured in Piatã between 1940 and 2025 was 14 August 1991, with winds reaching 25.6 km/h.
What is the warmest month in Piatã?
The warmest month in Piatã is February (21.5 °C on average); the coldest is July (17.4 °C).
How much does it rain in Piatã?
Piatã receives on average 887 mm of precipitation per year, spread over about 103 rainy days.
Is it sunny in Piatã?
Piatã gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Piatã?
Yes: Piatã has on average 1 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Piatã?
In Piatã, between 1940 and 2025, the highest apparent temperature reached 37.7 °C on 5 October 2015, and the lowest was 5.5 °C on 24 June 1942.
Compare Piatã with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Piatã