Barra de Santo Antônio climate — normals and trends
Barra de Santo Antônio (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.4 °C and it receives 1,206 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 March (26.4 °C on average) and the coldest is August (24.1 °C). Rainfall peaks in June.
Barra de Santo Antônio averages 0 frost days, 0 hot days (≥ 30 °C) and 246 rainy days per year.
Barra de Santo Antônio has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 30.5 °C (on 20 March 2019) and the coldest 20.9 °C (on 10 August 1956).
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
Barra de Santo AntônioAlagoas
- coords
- -9.40°, -35.51°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.4°C
Average daily high
26.2°C
Average daily low
24.5°C
Annual rainfall
1,206mm
Sunshine / day
11.3h
Mean relative humidity
80%
Average peak wind
22.1km/h
Seasonal range
2.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
246 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.4 °C
Average feels-like low
26.8 °C
Average peak gust
30.8 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
20.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.53 · 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
30.5 °C
20 March 2019
Coldest day
20.9 °C
10 August 1956
Wettest day
129 mm
3 July 2013
Windiest day
42.5 km/h
6 May 2024
Strongest gust
59.8 km/h
6 May 2024
Hottest feels-like
36.7 °C
21 March 2019
Coldest feels-like
21.2 °C
1 August 1988
Sunniest day
12.6 h
18 December 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 | 27.3 °C | +0.5 °C | 70 mm | +8 mm |
| Feb | 27.6 °C | +0.5 °C | 86 mm | +16 mm |
| Mar | 27.7 °C | +0.5 °C | 56 mm | -49 mm |
| Apr | 27.9 °C | +0.8 °C | 60 mm | -80 mm |
| May | 26.9 °C | +0.4 °C | 237 mm | +59 mm |
| Jun | 26.1 °C | +0.3 °C | 273 mm | +89 mm |
| Jul | 25.4 °C | +0.3 °C | 161 mm | -3 mm |
| Aug | 25.2 °C | +0.3 °C | 193 mm | +89 mm |
| Sep | 25.5 °C | +0.3 °C | 85 mm | +12 mm |
| Oct | 25.9 °C | +0.1 °C | 55 mm | +6 mm |
| Nov | 26.7 °C | +0.4 °C | 18 mm | -19 mm |
| Dec | 26.9 °C | +0.3 °C | 35 mm | -5 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 Barra de Santo Antônio?
Barra de Santo Antônio has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.4 °C and it receives 1,206 mm of precipitation per year.
What is the hottest day ever recorded in Barra de Santo Antônio?
The hottest day measured in Barra de Santo Antônio between 1940 and 2025 was 20 March 2019, reaching 30.5 °C.
What is the coldest day in Barra de Santo Antônio?
The coldest day measured in Barra de Santo Antônio between 1940 and 2025 was 10 August 1956, at 20.9 °C.
Does it snow in Barra de Santo Antônio?
Almost never: Barra de Santo Antônio sees virtually no snow, with about 0 frost days per year.
Has the climate of Barra de Santo Antônio warmed?
Yes: Barra de Santo Antônio warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Barra de Santo Antônio?
The wettest day measured in Barra de Santo Antônio between 1940 and 2025 was 3 July 2013, with 129 mm of rain in 24 hours.
What was the windiest day in Barra de Santo Antônio?
The windiest day measured in Barra de Santo Antônio between 1940 and 2025 was 6 May 2024, with winds reaching 42.5 km/h.
What is the warmest month in Barra de Santo Antônio?
The warmest month in Barra de Santo Antônio is March (26.4 °C on average); the coldest is August (24.1 °C).
How much does it rain in Barra de Santo Antônio?
Barra de Santo Antônio receives on average 1,206 mm of precipitation per year, spread over about 246 rainy days.
Is it sunny in Barra de Santo Antônio?
Barra de Santo Antônio gets on average 11.3 hours of sunshine per day, roughly 4,125 hours per year over 1940-2025.
Are there tropical nights in Barra de Santo Antônio?
Yes: Barra de Santo Antônio has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Barra de Santo Antônio?
In Barra de Santo Antônio, between 1940 and 2025, the highest apparent temperature reached 36.7 °C on 21 March 2019, and the lowest was 21.2 °C on 1 August 1988.
Compare Barra de Santo Antônio with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Barra de Santo Antônio