Winter Weather in Itaueira Brazil

Daily high temperatures increase by 5°F, from 93°F to 98°F, rarely falling below 88°F or exceeding 101°F.

Daily low temperatures are around 72°F, rarely falling below 68°F or exceeding 77°F. The lowest daily average low temperature is 71°F on July 24.

For reference, on September 28, the hottest day of the year, temperatures in Itaueira typically range from 76°F to 100°F, while on July 18, the coldest day of the year, they range from 71°F to 94°F.

The figure below shows you a compact characterization of the hourly average winter temperatures. 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.

Orocuina, Honduras (3,360 miles away); Kandé, Togo (3,270 miles); and Mannārakkāt, India (8,320 miles) are the far-away foreign places with temperatures most similar to Itaueira (view comparison).

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The winter in Itaueira experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 50% to 33%. The lowest chance of overcast or mostly cloudy conditions is 27% on July 26.

The clearest day of the winter is July 26, with clear, mostly clear, or partly cloudy conditions 73% of the time.

For reference, on March 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 80%, while on July 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 73%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Itaueira, the chance of a wet day over the course of the winter is decreasing, starting the season at 5% and ending it at 1%.

For reference, the year's highest daily chance of a wet day is 56% on March 13, and its lowest chance is 0% on August 10.

Rainfall

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

The average sliding 31-day rainfall during the winter in Itaueira is gradually decreasing, starting the season at 0.4 inches, when it rarely exceeds 1.1 inches, and ending the season at 0.1 inches, when it rarely exceeds 0.3 inches.

The lowest average 31-day accumulation is 0.0 inches on August 9.

Over the course of the winter in Itaueira, the length of the day is gradually increasing. From the start to the end of the season, the length of the day increases by 15 minutes, implying an average daily increase of 10 seconds, and weekly increase of 1 minute, 11 seconds.

The shortest day of the winter is June 21, with 11 hours, 41 minutes of daylight and the longest day is August 31, with 11 hours, 58 minutes of daylight.

The latest sunrise of the winter in Itaueira is 6:06 AM on July 16 and the earliest sunrise is 13 minutes earlier at 5:53 AM on August 31.

The earliest sunset is 5:41 PM on June 1 and the latest sunset is 11 minutes later at 5:52 PM on August 11.

Daylight saving time is not observed in Itaueira during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:33 AM and sets 12 hours, 34 minutes later, at 6:07 PM, while on June 20, the shortest day of the year, it rises at 6:03 AM and sets 11 hours, 41 minutes later, at 5:44 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 the winter of 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 Itaueira is very rapidly decreasing during the winter, falling from 29% to 1% over the course of the season.

The lowest chance of a muggy day during the winter is 1% on August 18.

For reference, on March 18, the muggiest day of the year, there are muggy conditions 97% of the time, while on August 18, the least muggy day of the year, there are muggy conditions 1% 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 Itaueira is rapidly increasing during the winter, increasing from 9.6 miles per hour to 12.3 miles per hour over the course of the season.

For reference, on August 9, the windiest day of the year, the daily average wind speed is 12.4 miles per hour, while on March 10, the calmest day of the year, the daily average wind speed is 5.7 miles per hour.

The highest daily average wind speed during the winter is 12.4 miles per hour on August 9.

The hourly average wind direction in Itaueira throughout the winter is predominantly from the east, with a peak proportion of 96% on June 29.

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 Itaueira 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 Itaueira are very rapidly decreasing during the winter, decreasing by 8,345°F, from 10,195°F to 1,850°F, over the course of the season.

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 Itaueira is increasing during the winter, rising by 1.3 kWh, from 5.7 kWh to 7.0 kWh, over the course of the season.

For the purposes of this report, the geographical coordinates of Itaueira are -7.603 deg latitude, -43.026 deg longitude, and 866 ft elevation.

The topography within 2 miles of Itaueira contains only modest variations in elevation, with a maximum elevation change of 374 feet and an average elevation above sea level of 867 feet. Within 10 miles contains only modest variations in elevation (764 feet). Within 50 miles contains significant variations in elevation (1,201 feet).

The area within 2 miles of Itaueira is covered by grassland (37%), trees (31%), and shrubs (29%), within 10 miles by shrubs (39%) and trees (35%), and within 50 miles by shrubs (42%) and trees (37%).