Santa Maria das Barreiras climate — normals and trends
Santa Maria das Barreiras (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.8 °C and it receives 1,807 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 September (29.0 °C on average) and the coldest is January (25.6 °C). Rainfall peaks in January.
Santa Maria das Barreiras averages 0 frost days, 261 hot days (≥ 30 °C) and 192 rainy days per year.
No statistically significant temperature trend emerges for Santa Maria das Barreiras between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 41.3 °C (on 29 October 1963) and the coldest 15.4 °C (on 1 August 2020).
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 Maria das BarreirasPará
- coords
- -8.87°, -49.71°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.8°C
Average daily high
31.7°C
Average daily low
22.8°C
Annual rainfall
1,807mm
Sunshine / day
9.9h
Mean relative humidity
73%
Average peak wind
10.0km/h
Seasonal range
3.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
261 d/yr
Rainy days (≥ 1 mm)
192 d/yr
Annual snowfall
0.0 cm
Average feels-like high
36.4 °C
Average feels-like low
26.0 °C
Average peak gust
27.2 km/h
Tropical nights (≥ 20 °C)
357 d/yr
Solar radiation
18.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
No clear trend over this period
Over a short window, year-to-year swings outweigh the climate signal. Try 86 years.
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
41.3 °C
29 October 1963
Coldest day
15.4 °C
1 August 2020
Wettest day
169 mm
4 April 1988
Windiest day
25.6 km/h
6 September 1995
Strongest gust
52.9 km/h
8 September 1942
Hottest feels-like
45.2 °C
6 February 1998
Coldest feels-like
14.4 °C
1 August 2020
Sunniest day
12.5 h
3 January 2015
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 | 30.0 °C | +0.3 °C | 350 mm | +53 mm |
| Feb | 30.2 °C | +0.5 °C | 251 mm | -29 mm |
| Mar | 30.8 °C | +1.1 °C | 259 mm | -34 mm |
| Apr | 31.8 °C | +1.7 °C | 141 mm | -67 mm |
| May | 33.1 °C | +1.8 °C | 11 mm | -57 mm |
| Jun | 34.1 °C | +1.4 °C | 0 mm | -7 mm |
| Jul | 34.8 °C | +1.2 °C | 0 mm | -3 mm |
| Aug | 36.0 °C | +0.9 °C | 0 mm | -6 mm |
| Sep | 35.8 °C | +0.8 °C | 18 mm | -21 mm |
| Oct | 33.8 °C | +1.0 °C | 84 mm | -51 mm |
| Nov | 31.7 °C | +0.7 °C | 134 mm | -76 mm |
| Dec | 30.5 °C | +0.3 °C | 217 mm | -42 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 Santa Maria das Barreiras?
Santa Maria das Barreiras has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.8 °C and it receives 1,807 mm of precipitation per year.
What is the hottest day ever recorded in Santa Maria das Barreiras?
The hottest day measured in Santa Maria das Barreiras between 1940 and 2025 was 29 October 1963, reaching 41.3 °C.
What is the coldest day in Santa Maria das Barreiras?
The coldest day measured in Santa Maria das Barreiras between 1940 and 2025 was 1 August 2020, at 15.4 °C.
Does it snow in Santa Maria das Barreiras?
Almost never: Santa Maria das Barreiras sees virtually no snow, with about 0 frost days per year.
Has the climate of Santa Maria das Barreiras warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Santa Maria das Barreiras.
What is the wettest day in Santa Maria das Barreiras?
The wettest day measured in Santa Maria das Barreiras between 1940 and 2025 was 4 April 1988, with 169 mm of rain in 24 hours.
What was the windiest day in Santa Maria das Barreiras?
The windiest day measured in Santa Maria das Barreiras between 1940 and 2025 was 6 September 1995, with winds reaching 25.6 km/h.
What is the warmest month in Santa Maria das Barreiras?
The warmest month in Santa Maria das Barreiras is September (29.0 °C on average); the coldest is January (25.6 °C).
How much does it rain in Santa Maria das Barreiras?
Santa Maria das Barreiras receives on average 1,807 mm of precipitation per year, spread over about 192 rainy days.
Is it sunny in Santa Maria das Barreiras?
Santa Maria das Barreiras gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Santa Maria das Barreiras?
Yes: Santa Maria das Barreiras has on average 357 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Santa Maria das Barreiras?
In Santa Maria das Barreiras, between 1940 and 2025, the highest apparent temperature reached 45.2 °C on 6 February 1998, and the lowest was 14.4 °C on 1 August 2020.
Compare Santa Maria das Barreiras with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Santa Maria das Barreiras