Rio Maria climate — normals and trends
Rio Maria (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.1 °C and it receives 1,698 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 (28.0 °C on average) and the coldest is February (24.9 °C). Rainfall peaks in January.
Rio Maria averages 0 frost days, 230 hot days (≥ 30 °C) and 196 rainy days per year.
No statistically significant temperature trend emerges for Rio Maria between 1940 and 2025: over this span, year-to-year swings outweigh the climate signal.
The hottest day of the period reached 39.4 °C (on 29 October 1963) and the coldest 14.6 °C (on 28 July 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
Rio MariaPará
- coords
- -7.31°, -50.05°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.1°C
Average daily high
30.9°C
Average daily low
22.1°C
Annual rainfall
1,698mm
Sunshine / day
10.0h
Mean relative humidity
75%
Average peak wind
10.2km/h
Seasonal range
3.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
230 d/yr
Rainy days (≥ 1 mm)
196 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.5 °C
Average feels-like low
25.2 °C
Average peak gust
28.3 km/h
Tropical nights (≥ 20 °C)
352 d/yr
Solar radiation
18.6 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
39.4 °C
29 October 1963
Coldest day
14.6 °C
28 July 2020
Wettest day
232 mm
8 January 1991
Windiest day
22.2 km/h
27 August 1949
Strongest gust
51.1 km/h
9 July 2019
Hottest feels-like
43.4 °C
26 April 1998
Coldest feels-like
14.0 °C
28 July 2020
Sunniest day
12.4 h
6 January 2021
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 | 29.6 °C | +0.5 °C | 305 mm | +23 mm |
| Feb | 29.9 °C | +0.8 °C | 305 mm | +38 mm |
| Mar | 30.2 °C | +1.1 °C | 254 mm | -27 mm |
| Apr | 31.3 °C | +1.9 °C | 95 mm | -115 mm |
| May | 31.8 °C | +1.6 °C | 20 mm | -69 mm |
| Jun | 32.7 °C | +1.4 °C | 8 mm | -7 mm |
| Jul | 33.8 °C | +1.3 °C | 8 mm | +2 mm |
| Aug | 34.0 °C | +0.3 °C | 6 mm | -2 mm |
| Sep | 33.8 °C | +0.2 °C | 37 mm | +2 mm |
| Oct | 32.6 °C | +0.4 °C | 35 mm | -67 mm |
| Nov | 31.0 °C | +0.4 °C | 117 mm | -61 mm |
| Dec | 29.5 °C | -0.2 °C | 164 mm | -61 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 Rio Maria?
Rio Maria has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.1 °C and it receives 1,698 mm of precipitation per year.
What is the hottest day ever recorded in Rio Maria?
The hottest day measured in Rio Maria between 1940 and 2025 was 29 October 1963, reaching 39.4 °C.
What is the coldest day in Rio Maria?
The coldest day measured in Rio Maria between 1940 and 2025 was 28 July 2020, at 14.6 °C.
Does it snow in Rio Maria?
Almost never: Rio Maria sees virtually no snow, with about 0 frost days per year.
Has the climate of Rio Maria warmed?
Between 1940 and 2025, no statistically significant temperature trend emerges in Rio Maria.
What is the wettest day in Rio Maria?
The wettest day measured in Rio Maria between 1940 and 2025 was 8 January 1991, with 232 mm of rain in 24 hours.
What was the windiest day in Rio Maria?
The windiest day measured in Rio Maria between 1940 and 2025 was 27 August 1949, with winds reaching 22.2 km/h.
What is the warmest month in Rio Maria?
The warmest month in Rio Maria is September (28.0 °C on average); the coldest is February (24.9 °C).
How much does it rain in Rio Maria?
Rio Maria receives on average 1,698 mm of precipitation per year, spread over about 196 rainy days.
Is it sunny in Rio Maria?
Rio Maria gets on average 10.0 hours of sunshine per day, roughly 3,650 hours per year over 1940-2025.
Are there tropical nights in Rio Maria?
Yes: Rio Maria has on average 352 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rio Maria?
In Rio Maria, between 1940 and 2025, the highest apparent temperature reached 43.4 °C on 26 April 1998, and the lowest was 14.0 °C on 28 July 2020.
Compare Rio Maria with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rio Maria