Rio Brilhante climate — normals and trends
Rio Brilhante (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 23.8 °C and it receives 1,237 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 January (26.1 °C on average) and the coldest is June (19.8 °C). Rainfall peaks in January.
Rio Brilhante averages 0 frost days, 175 hot days (≥ 30 °C) and 142 rainy days per year.
Rio Brilhante has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 42.0 °C (on 25 November 1942) and the coldest 0.2 °C (on 19 July 1975).
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 BrilhanteMato Grosso do Sul
- coords
- -21.80°, -54.55°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.8°C
Average daily high
29.3°C
Average daily low
19.2°C
Annual rainfall
1,237mm
Sunshine / day
10.0h
Mean relative humidity
70%
Average peak wind
12.9km/h
Seasonal range
6.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
175 d/yr
Rainy days (≥ 1 mm)
142 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.9 °C
Average feels-like low
20.5 °C
Average peak gust
31.1 km/h
Tropical nights (≥ 20 °C)
191 d/yr
Solar radiation
18.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.39 · 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
42.0 °C
25 November 1942
Coldest day
0.2 °C
19 July 1975
Wettest day
122 mm
9 January 1995
Windiest day
46.8 km/h
15 September 1956
Strongest gust
88.6 km/h
7 July 1983
Hottest feels-like
44.8 °C
31 October 2019
Coldest feels-like
-3.1 °C
19 July 1975
Sunniest day
13.1 h
29 December 1942
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 | 34.2 °C | +3.2 °C | 65 mm | -114 mm |
| Feb | 32.4 °C | +1.5 °C | 109 mm | -44 mm |
| Mar | 32.4 °C | +1.6 °C | 93 mm | -24 mm |
| Apr | 27.9 °C | -1.4 °C | 184 mm | +110 mm |
| May | 28.3 °C | +1.8 °C | 22 mm | -56 mm |
| Jun | 25.3 °C | -0.2 °C | 76 mm | +20 mm |
| Jul | 26.8 °C | +0.7 °C | 30 mm | -9 mm |
| Aug | 28.3 °C | -0.4 °C | 39 mm | -3 mm |
| Sep | 34.0 °C | +3.7 °C | 24 mm | -54 mm |
| Oct | 30.9 °C | +0.1 °C | 110 mm | -15 mm |
| Nov | 31.3 °C | +0.3 °C | 103 mm | -30 mm |
| Dec | 32.1 °C | +1.1 °C | 150 mm | -14 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 Brilhante?
Rio Brilhante has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.8 °C and it receives 1,237 mm of precipitation per year.
What is the hottest day ever recorded in Rio Brilhante?
The hottest day measured in Rio Brilhante between 1940 and 2025 was 25 November 1942, reaching 42.0 °C.
What is the coldest day in Rio Brilhante?
The coldest day measured in Rio Brilhante between 1940 and 2025 was 19 July 1975, at 0.2 °C.
Does it snow in Rio Brilhante?
Almost never: Rio Brilhante sees virtually no snow, with about 0 frost days per year.
Has the climate of Rio Brilhante warmed?
Yes: Rio Brilhante warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rio Brilhante?
The wettest day measured in Rio Brilhante between 1940 and 2025 was 9 January 1995, with 122 mm of rain in 24 hours.
What was the windiest day in Rio Brilhante?
The windiest day measured in Rio Brilhante between 1940 and 2025 was 15 September 1956, with winds reaching 46.8 km/h.
What is the warmest month in Rio Brilhante?
The warmest month in Rio Brilhante is January (26.1 °C on average); the coldest is June (19.8 °C).
How much does it rain in Rio Brilhante?
Rio Brilhante receives on average 1,237 mm of precipitation per year, spread over about 142 rainy days.
Is it sunny in Rio Brilhante?
Rio Brilhante 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 Brilhante?
Yes: Rio Brilhante has on average 191 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rio Brilhante?
In Rio Brilhante, between 1940 and 2025, the highest apparent temperature reached 44.8 °C on 31 October 2019, and the lowest was -3.1 °C on 19 July 1975.
Compare Rio Brilhante with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rio Brilhante