Spring Weather in São José de Piranhas Brazil

Daily high temperatures are around 98°F, rarely falling below 94°F or exceeding 102°F. The highest daily average high temperature is 100°F on October 22.

Daily low temperatures increase by 5°F, from 68°F to 73°F, rarely falling below 65°F or exceeding 75°F.

For reference, on October 22, the hottest day of the year, temperatures in São José de Piranhas typically range from 71°F to 100°F, while on July 23, the coldest day of the year, they range from 66°F to 92°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.

San Luis Ixcán, Guatemala (3,935 miles away) and Tixcacaltuyub, Mexico (3,922 miles) are the far-away foreign places with temperatures most similar to São José de Piranhas (view comparison).

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The spring in São José de Piranhas experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 30% to 64%.

The clearest day of the spring is September 5, with clear, mostly clear, or partly cloudy conditions 71% of the time.

For reference, on April 17, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 69%, while on July 30, 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 São José de Piranhas, the chance of a wet day over the course of the spring is rapidly increasing, starting the season at 2% and ending it at 10%.

For reference, the year's highest daily chance of a wet day is 60% on March 24, and its lowest chance is 2% on August 25.

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 São José de Piranhas is increasing, starting the season at 0.1 inches, when it rarely exceeds 0.3 inches or falls below -0.0 inches, and ending the season at 0.8 inches, when it rarely exceeds 2.5 inches.

Over the course of the spring in São José de Piranhas, the length of the day is increasing. From the start to the end of the season, the length of the day increases by 32 minutes, implying an average daily increase of 21 seconds, and weekly increase of 2 minutes, 28 seconds.

The shortest day of the spring is September 1, with 11 hours, 59 minutes of daylight and the longest day is November 30, with 12 hours, 30 minutes of daylight.

The latest sunrise of the spring in São José de Piranhas is 5:34 AM on September 1 and the earliest sunrise is 29 minutes earlier at 5:05 AM on November 13.

The earliest sunset is 5:27 PM on October 18 and the latest sunset is 11 minutes later at 5:38 PM on November 30.

Daylight saving time is not observed in São José de Piranhas during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:16 AM and sets 12 hours, 32 minutes later, at 5:48 PM, while on June 20, the shortest day of the year, it rises at 5:44 AM and sets 11 hours, 43 minutes later, at 5:27 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 São José de Piranhas is rapidly increasing during the spring, rising from 3% to 15% over the course of the season.

The lowest chance of a muggy day during the spring is 2% on September 13.

For reference, on April 3, the muggiest day of the year, there are muggy conditions 93% of the time, while on September 13, the least muggy day of the year, there are muggy conditions 2% 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 São José de Piranhas is decreasing during the spring, decreasing from 12.1 miles per hour to 10.6 miles per hour over the course of the season.

For reference, on August 29, the windiest day of the year, the daily average wind speed is 12.2 miles per hour, while on April 1, the calmest day of the year, the daily average wind speed is 6.3 miles per hour.

The hourly average wind direction in São José de Piranhas throughout the spring is predominantly from the east, with a peak proportion of 92% on October 24.

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 São José de Piranhas 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 São José de Piranhas are very rapidly increasing during the spring, increasing by 2,770°F, from 1,687°F to 4,457°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 São José de Piranhas is essentially constant during the spring, remaining within 0.3 kWh of 7.4 kWh throughout.

The highest average daily incident shortwave solar energy during the spring is 7.7 kWh on October 10.

For the purposes of this report, the geographical coordinates of São José de Piranhas are -7.121 deg latitude, -38.502 deg longitude, and 1,129 ft elevation.

The topography within 2 miles of São José de Piranhas contains very significant variations in elevation, with a maximum elevation change of 1,125 feet and an average elevation above sea level of 1,198 feet. Within 10 miles also contains very significant variations in elevation (1,854 feet). Within 50 miles contains very significant variations in elevation (2,733 feet).

The area within 2 miles of São José de Piranhas is covered by trees (31%), grassland (28%), shrubs (22%), and cropland (15%), within 10 miles by shrubs (41%) and trees (31%), and within 50 miles by shrubs (40%) and trees (34%).