March Weather in Santo Antônio do Içá Brazil

Daily high temperatures are around 83°F, rarely falling below 80°F or exceeding 86°F. The highest daily average high temperature is 83°F on March 11.

Daily low temperatures are around 75°F, rarely falling below 73°F or exceeding 76°F. The highest daily average low temperature is 75°F on March 26.

For reference, on September 21, the hottest day of the year, temperatures in Santo Antônio do Içá typically range from 74°F to 85°F, while on July 10, the coldest day of the year, they range from 73°F to 82°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on March. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Kinangan, Philippines (11,492 miles away) is the far-away foreign place with temperatures most similar to Santo Antônio do Içá (view comparison).

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The month of March in Santo Antônio do Içá experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 82% throughout the month.

The clearest day of the month is March 31, with clear, mostly clear, or partly cloudy conditions 18% of the time.

For reference, on December 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 85%, while on July 22, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 56%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Santo Antônio do Içá, the chance of a wet day over the course of March is gradually decreasing, starting the month at 80% and ending it at 77%.

For reference, the year's highest daily chance of a wet day is 81% on December 25, and its lowest chance is 57% on August 1.

Rainfall

To show variation within the month and not just the monthly total, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during March in Santo Antônio do Içá is gradually decreasing, starting the month at 10.0 inches, when it rarely exceeds 14.4 inches or falls below 6.1 inches, and ending the month at 9.6 inches, when it rarely exceeds 12.9 inches or falls below 6.4 inches.

Over the course of March in Santo Antônio do Içá, the length of the day is essentially constant. The shortest day of the month is March 31, with 12 hours, 5 minutes of daylight and the longest day is March 1, with 12 hours, 10 minutes of daylight.

The latest sunrise of the month in Santo Antônio do Içá is 6:39 AM on March 1 and the earliest sunrise is 6 minutes earlier at 6:33 AM on March 31.

The latest sunset is 6:48 PM on March 1 and the earliest sunset is 11 minutes earlier at 6:37 PM on March 31.

Daylight saving time is not observed in Santo Antônio do Içá during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 6:21 AM and sets 12 hours, 18 minutes later, at 6:39 PM, while on June 20, the shortest day of the year, it rises at 6:35 AM and sets 11 hours, 57 minutes later, at 6:31 PM.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

The figure below presents a compact representation of key lunar data for March 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases. The label associated with each bar indicates the date and time that the phase is obtained, and the companion time labels indicate the rise and set times of the Moon for the nearest time interval in which the moon is above the horizon.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

The chance that a given day will be muggy in Santo Antônio do Içá is essentially constant during March, remaining around 100% throughout.

For reference, on January 1, the muggiest day of the year, there are muggy conditions 100% of the time, while on July 7, the least muggy day of the year, there are muggy conditions 99% of the time.

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Santo Antônio do Içá is essentially constant during March, remaining around 1.9 miles per hour throughout.

For reference, on July 15, the windiest day of the year, the daily average wind speed is 2.0 miles per hour, while on December 6, the calmest day of the year, the daily average wind speed is 1.8 miles per hour.

The lowest daily average wind speed during March is 1.8 miles per hour on March 19.

The hourly average wind direction in Santo Antônio do Içá throughout March is predominantly from the east, with a peak proportion of 62% on March 1.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Temperatures in Santo Antônio do Içá are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

The average accumulated growing degree days in Santo Antônio do Içá are rapidly increasing during March, increasing by 850°F, from 6,955°F to 7,805°F, over the course of the month.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy in Santo Antônio do Içá is essentially constant during March, remaining around 4.7 kWh throughout.

The highest average daily incident shortwave solar energy during March is 4.7 kWh on March 9.

For the purposes of this report, the geographical coordinates of Santo Antônio do Içá are -3.102 deg latitude, -67.940 deg longitude, and 223 ft elevation.

The topography within 2 miles of Santo Antônio do Içá contains only modest variations in elevation, with a maximum elevation change of 217 feet and an average elevation above sea level of 216 feet. Within 10 miles also contains only modest variations in elevation (289 feet). Within 50 miles also contains only modest variations in elevation (446 feet).

The area within 2 miles of Santo Antônio do Içá is covered by water (48%) and trees (37%), within 10 miles by trees (77%) and water (18%), and within 50 miles by trees (93%).