Ceará-Mirim, Brazil Climate
The warmest month is December, with an average high of 32°C; the coldest is August, with an average low of 22°C. A normal year brings 900 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 25
- Normal high
- 32°C
- Normal low
- 23°C
- Reanalysis high
- 33°Cin 2003
- Reanalysis low
- 22°Cin 2011
- Chance of a wet day
- 8%
- Daylight
- 12 h 07 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 | 32°C | 25°C | 35°C (2003) | 23°C (2011) | 68 mm | 9.3 |
| February | 32°C | 25°C | 35°C (2007) | 22°C (2009) | 90 mm | 14.1 |
| March | 31°C | 25°C | 36°C (1998) | 22°C (2014) | 136 mm | 18.6 |
| April | 30°C | 24°C | 36°C (2013) | 22°C (1991) | 150 mm | 21.0 |
| May | 30°C | 24°C | 35°C (1998) | 21°C (2013) | 118 mm | 18.6 |
| June | 29°C | 23°C | 33°C (2010) | 20°C (2011) | 141 mm | 18.0 |
| July | 29°C | 22°C | 32°C (2016) | 19°C (2017) | 99 mm | 15.5 |
| August | 30°C | 22°C | 33°C (2016) | 19°C (2010) | 40 mm | 9.3 |
| September | 31°C | 23°C | 33°C (2001) | 21°C (2011) | 21 mm | 6.0 |
| October | 32°C | 24°C | 34°C (2010) | 21°C (1992) | 9 mm | 3.1 |
| November | 32°C | 24°C | 34°C (2003) | 22°C (1992) | 12 mm | 3.0 |
| December | 32°C | 25°C | 34°C (2019) | 23°C (1991) | 16 mm | 3.1 |
| Year | 31°C | 24°C | 900 mm | 140 |
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.
900 mm in a normal year, most in April.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Ceará-Mirim.
The muggiest month is February, when 100 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 | 21°C | 71% | 0% | 0% | 0% | 41% | 58% | 0% |
| February | 22°C | 73% | 0% | 0% | 0% | 23% | 74% | 3% |
| March | 23°C | 77% | 0% | 0% | 0% | 8% | 84% | 8% |
| April | 23°C | 81% | 0% | 0% | 0% | 4% | 82% | 14% |
| May | 23°C | 80% | 0% | 0% | 0% | 10% | 82% | 8% |
| June | 22°C | 81% | 0% | 0% | 1% | 26% | 73% | 0% |
| July | 21°C | 79% | 0% | 0% | 2% | 53% | 44% | 0% |
| August | 20°C | 74% | 0% | 0% | 7% | 82% | 11% | 0% |
| September | 20°C | 69% | 0% | 0% | 10% | 84% | 6% | 0% |
| October | 20°C | 66% | 0% | 0% | 6% | 90% | 4% | 0% |
| November | 20°C | 66% | 0% | 0% | 2% | 85% | 13% | 0% |
| December | 21°C | 67% | 0% | 0% | 1% | 66% | 34% | 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 27 percent covered on average; the cloudiest is April, at 57 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 25.2 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Dec 21, with 12 h 28 min of daylight; the shortest is Jun 16, with 11 h 47 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 Ceará-Mirim 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 2026-09-25. Sun and moon: computed with the NOAA solar equations and Meeus.