July Weather in Léogâne Haiti

Daily high temperatures are around 93°F, rarely falling below 89°F or exceeding 96°F.

Daily low temperatures are around 81°F, rarely falling below 79°F or exceeding 83°F.

For reference, on August 6, the hottest day of the year, temperatures in Léogâne typically range from 82°F to 93°F, while on January 29, the coldest day of the year, they range from 75°F to 88°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.

Samut Prakan, Thailand (10,182 miles away); Singapore (11,060 miles); and Kalianget, Indonesia (11,543 miles) are the far-away foreign places with temperatures most similar to Léogâne (view comparison).

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The month of July in Léogâne experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 68% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 67% on July 11.

The clearest day of the month is July 11, with clear, mostly clear, or partly cloudy conditions 33% of the time.

For reference, on June 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 78%, while on January 13, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 80%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Léogâne, the chance of a wet day over the course of July is essentially constant, remaining around 8% throughout.

For reference, the year's highest daily chance of a wet day is 17% on May 21, and its lowest chance is 4% on December 28.

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 in Léogâne is gradually increasing, starting the month at 0.8 inches, when it rarely exceeds 2.1 inches, and ending the month at 1.1 inches, when it rarely exceeds 3.0 inches.

The lowest average 31-day accumulation is 0.7 inches on July 5.

Over the course of July in Léogâne, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 16 minutes, implying an average daily decrease of 32 seconds, and weekly decrease of 3 minutes, 43 seconds.

The shortest day of the month is July 31, with 12 hours, 57 minutes of daylight and the longest day is July 1, with 13 hours, 13 minutes of daylight.

The earliest sunrise of the month in Léogâne is 6:17 AM on July 1 and the latest sunrise is 10 minutes later at 6:28 AM on July 31.

The latest sunset is 7:31 PM on July 5 and the earliest sunset is 6 minutes earlier at 7:25 PM on July 31.

Daylight saving time is observed in Léogâne during 2024, but it neither starts nor ends during July, so the entire month is in standard time.

For reference, on June 20, the longest day of the year, the Sun rises at 6:14 AM and sets 13 hours, 15 minutes later, at 7:29 PM, while on December 21, the shortest day of the year, it rises at 6:18 AM and sets 11 hours, 1 minute later, at 5:19 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 in Léogâne is essentially constant during July, remaining around 98% throughout.

The lowest chance of a muggy day during July is 98% on July 10.

For reference, on October 2, the muggiest day of the year, there are muggy conditions 99% of the time, while on February 13, the least muggy day of the year, there are muggy conditions 62% 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 Léogâne is gradually decreasing during July, decreasing from 6.5 miles per hour to 5.9 miles per hour over the course of the month.

For reference, on June 21, the windiest day of the year, the daily average wind speed is 6.5 miles per hour, while on October 19, the calmest day of the year, the daily average wind speed is 5.1 miles per hour.

The hourly average wind direction in Léogâne throughout July is predominantly from the east, with a peak proportion of 68% on July 1.

Léogâne 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 in Léogâne is essentially constant during July, remaining around 84°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 in Léogâne 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 Léogâne are very rapidly increasing during July, increasing by 1,033°F, from 5,774°F to 6,808°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 Léogâne is essentially constant during July, remaining around 5.6 kWh throughout.

The highest average daily incident shortwave solar energy during July is 5.7 kWh on July 13.

For the purposes of this report, the geographical coordinates of Léogâne are 18.510 deg latitude, -72.631 deg longitude, and 72 ft elevation.

The topography within 2 miles of Léogâne contains only modest variations in elevation, with a maximum elevation change of 138 feet and an average elevation above sea level of 60 feet. Within 10 miles contains only modest variations in elevation (3,583 feet). Within 50 miles also contains extreme variations in elevation (8,793 feet).

The area within 2 miles of Léogâne is covered by cropland (43%), trees (21%), grassland (18%), and shrubs (11%), within 10 miles by water (52%) and cropland (18%), and within 50 miles by water (51%) and cropland (22%).