July Weather at Florianópolis-Hercílio Luz International Airport Brazil

Daily high temperatures are around 69°F, rarely falling below 61°F or exceeding 77°F. The lowest daily average high temperature is 69°F on July 20.

Daily low temperatures are around 57°F, rarely falling below 47°F or exceeding 64°F. The lowest daily average low temperature is 56°F on July 21.

For reference, on February 11, the hottest day of the year, temperatures at Florianópolis-Hercílio Luz International Airport typically range from 73°F to 84°F, while on July 20, the coldest day of the year, they range from 56°F to 69°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on July. 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.

Durban, South Africa (4,723 miles away) is the far-away foreign place with temperatures most similar to Florianópolis-Hercílio Luz International Airport (view comparison).

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The month of July at Florianópolis-Hercílio Luz International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 41% throughout the month.

The clearest day of the month is July 22, with clear, mostly clear, or partly cloudy conditions 61% of the time.

For reference, on February 9, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 54%, while on April 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 62%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Florianópolis-Hercílio Luz International Airport, the chance of a wet day over the course of July is gradually decreasing, starting the month at 31% and ending it at 28%.

For reference, the year's highest daily chance of a wet day is 58% on February 12, and its lowest chance is 26% on August 13.

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 July at Florianópolis-Hercílio Luz International Airport is essentially constant, remaining about 3.7 inches throughout, and rarely exceeding 6.9 inches or falling below 0.9 inches.

The highest average 31-day accumulation is 3.8 inches on July 7.

Over the course of July at Florianópolis-Hercílio Luz International Airport, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 24 minutes, implying an average daily increase of 48 seconds, and weekly increase of 5 minutes, 36 seconds.

The shortest day of the month is July 1, with 10 hours, 25 minutes of daylight and the longest day is July 31, with 10 hours, 49 minutes of daylight.

The latest sunrise of the month at Florianópolis-Hercílio Luz International Airport is 7:05 AM on July 1 and the earliest sunrise is 10 minutes earlier at 6:56 AM on July 31.

The earliest sunset is 5:30 PM on July 1 and the latest sunset is 14 minutes later at 5:45 PM on July 31.

Daylight saving time is not observed at Florianópolis-Hercílio Luz International Airport during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:15 AM and sets 13 hours, 54 minutes later, at 7:09 PM, while on June 20, the shortest day of the year, it rises at 7:04 AM and sets 10 hours, 23 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 July 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 at Florianópolis-Hercílio Luz International Airport is gradually decreasing during July, falling from 6% to 4% over the course of the month.

The lowest chance of a muggy day during July is 4% on July 22.

For reference, on February 12, the muggiest day of the year, there are muggy conditions 93% of the time, while on July 22, the least muggy day of the year, there are muggy conditions 4% 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 at Florianópolis-Hercílio Luz International Airport is essentially constant during July, remaining within 0.2 miles per hour of 10.2 miles per hour throughout.

For reference, on September 22, the windiest day of the year, the daily average wind speed is 11.9 miles per hour, while on June 12, the calmest day of the year, the daily average wind speed is 9.8 miles per hour.

The hourly average wind direction at Florianópolis-Hercílio Luz International Airport throughout July is predominantly from the north, with a peak proportion of 48% on July 31.

Florianópolis-Hercílio Luz International Airport is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature at Florianópolis-Hercílio Luz International Airport is essentially constant during July, remaining within 1°F of 64°F throughout.

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 at Florianópolis-Hercílio Luz International Airport 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 at Florianópolis-Hercílio Luz International Airport are increasing during July, increasing by 362°F, from 0°F to 363°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 at Florianópolis-Hercílio Luz International Airport is gradually increasing during July, rising by 0.6 kWh, from 3.2 kWh to 3.8 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Florianópolis-Hercílio Luz International Airport are -27.667 deg latitude, -48.550 deg longitude, and 13 ft elevation.

The topography within 2 miles of Florianópolis-Hercílio Luz International Airport contains only modest variations in elevation, with a maximum elevation change of 187 feet and an average elevation above sea level of 13 feet. Within 10 miles contains only modest variations in elevation (3,392 feet). Within 50 miles also contains extreme variations in elevation (5,932 feet).

The area within 2 miles of Florianópolis-Hercílio Luz International Airport is covered by water (38%), trees (35%), and shrubs (14%), within 10 miles by water (59%) and trees (24%), and within 50 miles by water (62%) and trees (30%).