Cachoeira, Brazil Climate
The warmest month is January, with an average high of 34°C; the coldest is August, with an average low of 19°C. A normal year brings 1120 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 Sep 24
- Normal high
- 30°C
- Normal low
- 20°C
- Reanalysis high
- 33°Cin 2008
- Reanalysis low
- 18°Cin 2013
- Chance of a wet day
- 36%
- Daylight
- 12 h 08 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 | 34°C | 22°C | 40°C (2016) | 19°C (1993) | 68 mm | 12.4 |
| February | 33°C | 23°C | 39°C (2006) | 20°C (1992) | 76 mm | 14.1 |
| March | 33°C | 23°C | 39°C (2019) | 19°C (1992) | 90 mm | 15.5 |
| April | 32°C | 22°C | 39°C (2009) | 19°C (2012) | 141 mm | 18.0 |
| May | 29°C | 21°C | 36°C (2017) | 18°C (2006) | 152 mm | 21.7 |
| June | 27°C | 20°C | 35°C (2016) | 16°C (1996) | 138 mm | 24.0 |
| July | 27°C | 19°C | 34°C (2019) | 15°C (2006) | 118 mm | 21.7 |
| August | 27°C | 19°C | 34°C (2016) | 15°C (1994) | 90 mm | 18.6 |
| September | 29°C | 19°C | 36°C (1997) | 15°C (1991) | 66 mm | 12.0 |
| October | 32°C | 21°C | 38°C (1997) | 16°C (1994) | 56 mm | 9.3 |
| November | 33°C | 22°C | 40°C (2015) | 18°C (1994) | 72 mm | 12.0 |
| December | 34°C | 22°C | 39°C (2015) | 19°C (1995) | 53 mm | 9.3 |
| Year | 31°C | 21°C | 1120 mm | 189 |
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.
1120 mm in a normal year, most in May.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Cachoeira.
The muggiest month is March, when 99 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 | 20°C | 69% | 0% | 0% | 7% | 72% | 21% | 0% |
| February | 21°C | 71% | 0% | 0% | 2% | 66% | 32% | 0% |
| March | 21°C | 73% | 0% | 0% | 2% | 53% | 45% | 1% |
| April | 21°C | 78% | 0% | 0% | 1% | 36% | 63% | 0% |
| May | 21°C | 83% | 0% | 0% | 2% | 46% | 52% | 0% |
| June | 20°C | 85% | 0% | 0% | 5% | 75% | 20% | 0% |
| July | 19°C | 84% | 0% | 0% | 28% | 69% | 3% | 0% |
| August | 19°C | 82% | 0% | 0% | 42% | 57% | 0% | 0% |
| September | 19°C | 77% | 0% | 1% | 32% | 66% | 1% | 0% |
| October | 19°C | 73% | 0% | 0% | 23% | 69% | 8% | 0% |
| November | 20°C | 71% | 0% | 0% | 11% | 73% | 16% | 0% |
| December | 20°C | 69% | 0% | 0% | 8% | 76% | 16% | 0% |
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 September, with the sky 50 percent covered on average; the cloudiest is November, at 58 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 11.2 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Dec 10, with 12 h 52 min of daylight; the shortest is Jun 10, with 11 h 23 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 Cachoeira 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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.