Maranhao

Apicum-Açu, Brazil Climate

NASA POWER reanalysis for the half-degree grid cell around Apicum-Açu, 1991-2020; a grid cell is an area average and can differ from a thermometer in town by several degrees

The warmest month is November, with an average high of 30°C; the coldest is July, with an average low of 25°C. A normal year brings 2050 mm of precipitation.

Temperature through the year

The normal daily high and low. The line marks today.

Normal daily high and low temperature at Apicum-Açu through the year, in °C, with the record for each date.222426283032JanFebMarAprMayJunJulAugSepOctNovDec
  • Normal low
  • Normal high
  • Reanalysis extreme high
  • Reanalysis extreme low

Normals for Sep 24

Normal high
30°C
Normal low
26°C
Reanalysis high
30°Cin 2005
Reanalysis low
24°Cin 1993
Chance of a wet day
7%
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.

MonthAvg highAvg lowWarmestColdestPrecipitationWet days
January29°C26°C31°C (2004)24°C (1993)214 mm21.7
February28°C26°C31°C (2010)24°C (1995)291 mm25.4
March28°C26°C31°C (2010)24°C (1996)434 mm31.0
April28°C26°C30°C (1998)24°C (2008)405 mm30.0
May28°C26°C30°C (2010)24°C (2009)291 mm27.9
June28°C26°C30°C (2016)24°C (2006)174 mm24.0
July28°C25°C30°C (2017)24°C (2001)124 mm21.7
August29°C26°C31°C (2015)24°C (1991)34 mm9.3
September30°C26°C31°C (1993)24°C (2002)12 mm3.0
October30°C26°C31°C (2019)24°C (1991)9 mm3.1
November30°C26°C32°C (2020)24°C (1991)15 mm3.0
December30°C27°C32°C (2002)24°C (2000)47 mm6.2
Year29°C26°C2050 mm206

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.

2050 mm in a normal year, most in March.

Chance of a wet day

The chance of at least 1 mm of precipitation in the reanalysis on each date at Apicum-Açu, in percent.020406080100JanFebMarAprMayJunJulAugSepOctNovDec
  • Chance of a wet day

Humidity and comfort

NASA POWER reanalysis, 1991-2020, for the grid cell around Apicum-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.

MonthDew pointHumidityDryComfortableHumidMuggyOppressiveMiserable
January24°C82%0%0%0%0%70%30%
February24°C86%0%0%0%0%44%56%
March24°C88%0%0%0%0%23%77%
April25°C89%0%0%0%0%14%86%
May25°C87%0%0%0%0%14%86%
June24°C85%0%0%0%0%45%55%
July23°C83%0%0%0%0%82%18%
August23°C78%0%0%0%0%99%1%
September22°C75%0%0%0%2%98%0%
October22°C73%0%0%0%1%99%0%
November23°C74%0%0%0%1%97%2%
December23°C76%0%0%0%0%93%7%

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 31 percent covered on average; the cloudiest is March, at 80 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 16.6 km/h at 10 meters (33 feet) above the ground.

Daylight and sunshine

The longest day is Jan 1, with 12 h 13 min of daylight; the shortest is May 20, with 12 h 02 min.

Hours of daylight at Apicum-Açu through the year.0510152025JanFebMarAprMayJunJulAugSepOctNovDec
  • Day length

Solar energy

Average daily sunshine reaching the ground on a flat surface, in kilowatt-hours per square meter, clouds included.

Sunrise and sunset calendar

Month pages

The weather in Apicum-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 2026-09-24. Sun and moon: computed with the NOAA solar equations and Meeus.