Spring Weather in Ouro Branco Brazil

Daily high temperatures are around 78°F, rarely falling below 69°F or exceeding 87°F.

Daily low temperatures increase by 7°F, from 57°F to 64°F, rarely falling below 52°F or exceeding 67°F.

For reference, on February 13, the hottest day of the year, temperatures in Ouro Branco typically range from 65°F to 82°F, while on July 7, the coldest day of the year, they range from 52°F to 73°F.

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

Nelspruit, South Africa (4,704 miles away) is the far-away foreign place with temperatures most similar to Ouro Branco (view comparison).

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The spring in Ouro Branco experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 28% to 76%.

The clearest day of the spring is September 1, with clear, mostly clear, or partly cloudy conditions 72% of the time.

For reference, on December 19, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 79%, while on August 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 74%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Ouro Branco, the chance of a wet day over the course of the spring is very rapidly increasing, starting the season at 12% and ending it at 67%.

For reference, the year's highest daily chance of a wet day is 71% on December 20, and its lowest chance is 3% on July 13.

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 spring in Ouro Branco is very rapidly increasing, starting the season at 1.0 inches, when it rarely exceeds 2.4 inches, and ending the season at 8.8 inches, when it rarely exceeds 12.6 inches or falls below 5.7 inches.

Over the course of the spring in Ouro Branco, the length of the day is rapidly increasing. From the start to the end of the season, the length of the day increases by 1 hour, 34 minutes, implying an average daily increase of 1 minute, 2 seconds, and weekly increase of 7 minutes, 17 seconds.

The shortest day of the spring is September 1, with 11 hours, 43 minutes of daylight and the longest day is November 30, with 13 hours, 17 minutes of daylight.

The latest sunrise of the spring in Ouro Branco is 6:03 AM on September 1 and the earliest sunrise is 58 minutes earlier at 5:05 AM on November 26.

The earliest sunset is 5:46 PM on September 1 and the latest sunset is 36 minutes later at 6:22 PM on November 30.

Daylight saving time is not observed in Ouro Branco during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:11 AM and sets 13 hours, 23 minutes later, at 6:34 PM, while on June 20, the shortest day of the year, it rises at 6:29 AM and sets 10 hours, 53 minutes later, at 5:23 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 spring 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 Ouro Branco is very rapidly increasing during the spring, rising from 1% to 29% over the course of the season.

For reference, on January 13, the muggiest day of the year, there are muggy conditions 41% of the time, while on July 8, the least muggy day of the year, there are muggy conditions 0% 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 Ouro Branco is gradually decreasing during the spring, decreasing from 8.9 miles per hour to 8.1 miles per hour over the course of the season.

For reference, on September 18, the windiest day of the year, the daily average wind speed is 9.2 miles per hour, while on April 8, the calmest day of the year, the daily average wind speed is 6.7 miles per hour.

The highest daily average wind speed during the spring is 9.2 miles per hour on September 18.

The hourly average wind direction in Ouro Branco throughout the spring is predominantly from the east, with a peak proportion of 58% on October 15.

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 Ouro Branco 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 Ouro Branco are very rapidly increasing during the spring, increasing by 1,677°F, from 810°F to 2,488°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 Ouro Branco is essentially constant during the spring, remaining within 0.2 kWh of 6.0 kWh throughout.

The highest average daily incident shortwave solar energy during the spring is 6.2 kWh on October 17.

For the purposes of this report, the geographical coordinates of Ouro Branco are -20.523 deg latitude, -43.695 deg longitude, and 3,409 ft elevation.

The topography within 2 miles of Ouro Branco contains very significant variations in elevation, with a maximum elevation change of 1,657 feet and an average elevation above sea level of 3,479 feet. Within 10 miles contains very significant variations in elevation (2,700 feet). Within 50 miles contains large variations in elevation (5,627 feet).

The area within 2 miles of Ouro Branco is covered by shrubs (60%) and trees (28%), within 10 miles by trees (43%) and shrubs (41%), and within 50 miles by trees (41%) and shrubs (26%).