Rio Brilhante, Brazil Climate
The warmest month is October, with an average high of 34°C; the coldest is July, with an average low of 13°C. A normal year brings 1305 mm of precipitation.
Temperature through the year
The normal daily high and low. The line marks today.
- Normal low
- Normal high
- Reanalysis extreme high
- Reanalysis extreme low
Normals for Oct 1
- Normal high
- 33°C
- Normal low
- 18°C
- Reanalysis high
- 44°Cin 2020
- Reanalysis low
- 17°Cin 1991
- Chance of a wet day
- 41%
- Daylight
- 12 h 18 min
Month by month
Averages for 1991-2020. Wet days have at least 1 mm of precipitation in the reanalysis. Each month links to its own page.
| Month | Avg high | Avg low | Warmest | Coldest | Precipitation | Wet days |
|---|---|---|---|---|---|---|
| January | 33°C | 22°C | 39°C (2000) | 16°C (1994) | 165 mm | 20.2 |
| February | 32°C | 22°C | 40°C (2014) | 15°C (2018) | 156 mm | 18.6 |
| March | 32°C | 21°C | 41°C (2005) | 9°C (2012) | 120 mm | 16.1 |
| April | 31°C | 19°C | 40°C (2020) | 5°C (1999) | 93 mm | 9.6 |
| May | 28°C | 15°C | 37°C (2018) | 4°C (2007) | 98 mm | 9.0 |
| June | 27°C | 14°C | 35°C (2020) | 1°C (1994) | 66 mm | 7.1 |
| July | 27°C | 13°C | 36°C (1995) | -1°C (2000) | 43 mm | 4.7 |
| August | 31°C | 14°C | 40°C (1994) | 2°C (1993) | 42 mm | 4.7 |
| September | 33°C | 17°C | 44°C (2020) | 3°C (2006) | 95 mm | 8.7 |
| October | 34°C | 20°C | 44°C (2020) | 10°C (2016) | 129 mm | 13.9 |
| November | 33°C | 20°C | 42°C (2020) | 11°C (1992) | 138 mm | 14.1 |
| December | 33°C | 22°C | 41°C (2008) | 11°C (2010) | 160 mm | 18.0 |
| Year | 31°C | 18°C | 1305 mm | 145 |
Precipitation
Rain and melted snow together. The chance of a wet day is the share of days with at least 1 mm of precipitation in the reanalysis.
1305 mm in a normal year, most in January.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Rio Brilhante.
The muggiest month is January, when 93 percent of days are muggy or worse, with a mean dew point of 18°C or more.
| Month | Dew point | Humidity | Dry | Comfortable | Humid | Muggy | Oppressive | Miserable |
|---|---|---|---|---|---|---|---|---|
| January | 22°C | 75% | 0% | 1% | 5% | 27% | 63% | 3% |
| February | 21°C | 75% | 0% | 1% | 6% | 25% | 66% | 2% |
| March | 21°C | 75% | 1% | 4% | 10% | 32% | 54% | 0% |
| April | 19°C | 74% | 6% | 10% | 21% | 41% | 22% | 0% |
| May | 16°C | 76% | 21% | 22% | 30% | 24% | 3% | 0% |
| June | 15°C | 77% | 23% | 33% | 32% | 11% | 1% | 0% |
| July | 13°C | 71% | 43% | 33% | 21% | 3% | 0% | 0% |
| August | 12°C | 62% | 52% | 29% | 15% | 4% | 0% | 0% |
| September | 14°C | 60% | 34% | 27% | 20% | 15% | 3% | 0% |
| October | 18°C | 67% | 6% | 13% | 21% | 41% | 18% | 0% |
| November | 19°C | 69% | 5% | 10% | 16% | 33% | 34% | 1% |
| December | 21°C | 72% | 1% | 3% | 9% | 29% | 56% | 2% |
Comfort is judged by the day's mean dew point: dry below 13°C, comfortable to 16°C, humid to 18°C, muggy to 21°C, oppressive to 24°C, miserable above.
Clouds
Average share of the sky covered, from satellite (CERES and GEWEX SRB) by way of NASA POWER, 1991-2020.
The clearest month is July, with the sky 42 percent covered on average; the cloudiest is January, at 71 percent.
Wind
The mean wind speed over the whole day, from the MERRA-2 reanalysis by way of NASA POWER. Gusts run well above it.
The windiest month is September, averaging 12.2 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Dec 14, with 13 h 28 min of daylight; the shortest is Jun 15, with 10 h 48 min.
- Day length
Solar energy
Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.
Month pages
The weather in Rio Brilhante in each month, day by day.
What this means
A normal is the average of the thirty years 1991 to 2020, the period the World Meteorological Organization and NOAA use for comparison. It is an average, not a forecast: most days depart from it, and some by a long way.
Where no station record is within reach, the extremes shown are the highest and lowest the reanalysis produced for the date in 1991-2020, not measured records.
Cloud, humidity, wind and sunshine come from a reanalysis: a weather model run over the past with every observation fed in, averaged over a grid cell about 50 km across. It is consistent everywhere on Earth; it smooths local detail such as a lake shore or a valley.
More for this place
Nearby
Sources
Cloud, humidity, wind and sunshine, and temperature and precipitation: NASA POWER (MERRA-2, CERES and GEWEX SRB), 1991-2020. The data was obtained from the National Aeronautics and Space Administration (NASA) Langley Research Center's Prediction Of Worldwide Energy Resources (POWER) project funded through the NASA Earth Science Division: POWER Daily API v2, accessed 2026-10-01. Sun and moon: computed with the NOAA solar equations and Meeus.