Tomé-Açu, Brazil Climate
The warmest month is October, with an average high of 35°C; the coldest is July, with an average low of 22°C. A normal year brings 2131 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
- 34°C
- Normal low
- 23°C
- Reanalysis high
- 39°Cin 2015
- Reanalysis low
- 22°Cin 1991
- Chance of a wet day
- 46%
- 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 | 30°C | 23°C | 37°C (1992) | 20°C (1992) | 276 mm | 27.9 |
| February | 29°C | 23°C | 34°C (2015) | 21°C (2020) | 305 mm | 28.3 |
| March | 28°C | 23°C | 34°C (2015) | 21°C (1992) | 372 mm | 31.0 |
| April | 28°C | 23°C | 33°C (2015) | 21°C (2016) | 336 mm | 30.0 |
| May | 29°C | 23°C | 32°C (2015) | 21°C (1991) | 236 mm | 27.9 |
| June | 29°C | 23°C | 33°C (2015) | 20°C (2007) | 108 mm | 21.0 |
| July | 29°C | 22°C | 36°C (2015) | 19°C (2001) | 81 mm | 18.6 |
| August | 31°C | 22°C | 39°C (2015) | 18°C (2001) | 59 mm | 15.5 |
| September | 33°C | 23°C | 39°C (2015) | 21°C (1993) | 54 mm | 12.0 |
| October | 35°C | 24°C | 40°C (2015) | 21°C (1996) | 59 mm | 12.4 |
| November | 35°C | 24°C | 40°C (2014) | 22°C (2006) | 87 mm | 15.0 |
| December | 33°C | 24°C | 39°C (2015) | 21°C (1998) | 158 mm | 24.8 |
| Year | 31°C | 23°C | 2131 mm | 264 |
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.
2131 mm in a normal year, most in March.
Chance of a wet day
- Chance of a wet day
Humidity and comfort
NASA POWER reanalysis, 1991-2020, for the grid cell around Tomé-Açu.
The muggiest month is January, 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 | 24°C | 88% | 0% | 0% | 0% | 2% | 59% | 39% |
| February | 24°C | 93% | 0% | 0% | 0% | 0% | 39% | 61% |
| March | 24°C | 93% | 0% | 0% | 0% | 0% | 24% | 76% |
| April | 24°C | 94% | 0% | 0% | 0% | 0% | 15% | 85% |
| May | 24°C | 93% | 0% | 0% | 0% | 0% | 14% | 86% |
| June | 24°C | 91% | 0% | 0% | 0% | 0% | 38% | 62% |
| July | 24°C | 89% | 0% | 0% | 0% | 1% | 68% | 30% |
| August | 23°C | 86% | 0% | 0% | 0% | 5% | 74% | 21% |
| September | 22°C | 77% | 0% | 0% | 0% | 19% | 76% | 5% |
| October | 22°C | 69% | 0% | 0% | 1% | 32% | 65% | 2% |
| November | 22°C | 69% | 0% | 0% | 1% | 36% | 57% | 5% |
| December | 22°C | 77% | 0% | 0% | 1% | 16% | 70% | 13% |
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 August, with the sky 39 percent covered on average; the cloudiest is March, at 85 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 3.2 km/h at 10 meters (33 feet) above the ground.
Daylight and sunshine
The longest day is Jan 1, with 12 h 16 min of daylight; the shortest is May 23, with 11 h 59 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 Tomé-Açu 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.