July Weather at Sangster International Airport Jamaica
Daily high temperatures are around 89°F, rarely falling below 87°F or exceeding 91°F.
Daily low temperatures are around 78°F, rarely falling below 76°F or exceeding 81°F.
For reference, on August 1, the hottest day of the year, temperatures at Sangster International Airport typically range from 78°F to 89°F, while on February 14, the coldest day of the year, they range from 73°F to 83°F.
Average High and Low Temperature in July at Sangster International Airport
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.
Average Hourly Temperature in July at Sangster International Airport
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The month of July at Sangster International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 74% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 73% on July 22.
The clearest day of the month is July 22, with clear, mostly clear, or partly cloudy conditions 27% of the time.
For reference, on June 14, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 80%, while on January 30, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 81%.
Cloud Cover Categories in July at Sangster International Airport
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Sangster International Airport, the chance of a wet day over the course of July is essentially constant, remaining around 34% throughout.
For reference, the year's highest daily chance of a wet day is 55% on September 28, and its lowest chance is 11% on December 27.
Probability of Precipitation in July at Sangster International Airport
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 Sangster International Airport is gradually decreasing, starting the month at 2.7 inches, when it rarely exceeds 5.5 inches or falls below 0.5 inches, and ending the month at 2.4 inches, when it rarely exceeds 4.9 inches or falls below 0.5 inches.
The lowest average 31-day accumulation is 2.2 inches on July 19.
Average Monthly Rainfall in July at Sangster International Airport
Over the course of July at Sangster International Airport, 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 31 seconds, and weekly decrease of 3 minutes, 40 seconds.
The shortest day of the month is July 31, with 12 hours, 58 minutes of daylight and the longest day is July 1, with 13 hours, 13 minutes of daylight.
Hours of Daylight and Twilight in July at Sangster International Airport
The earliest sunrise of the month at Sangster International Airport is 5:38 AM on July 1 and the latest sunrise is 10 minutes later at 5:49 AM on July 31.
The latest sunset is 6:52 PM on July 4 and the earliest sunset is 6 minutes earlier at 6:46 PM on July 31.
Daylight saving time is not observed at Sangster International Airport during 2021.
For reference, on June 21, the longest day of the year, the Sun rises at 5:36 AM and sets 13 hours, 15 minutes later, at 6:50 PM, while on December 21, the shortest day of the year, it rises at 6:39 AM and sets 11 hours, 1 minute later, at 5:40 PM.
Sunrise & Sunset with Twilight in July at Sangster International Airport
The figure below presents a compact representation of key lunar data for July 2021. 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.
Moon Rise, Set & Phases in July at Sangster International Airport
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 Sangster International Airport is essentially constant during July, remaining around 100% throughout.
For reference, on August 10, the muggiest day of the year, there are muggy conditions 100% of the time, while on March 8, the least muggy day of the year, there are muggy conditions 90% of the time.
Humidity Comfort Levels in July at Sangster International Airport
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Sangster International Airport is decreasing during July, decreasing from 13.3 miles per hour to 12.0 miles per hour over the course of the month.
For reference, on December 22, the windiest day of the year, the daily average wind speed is 13.5 miles per hour, while on October 2, the calmest day of the year, the daily average wind speed is 9.5 miles per hour.
Average Wind Speed in July at Sangster International Airport
The hourly average wind direction at Sangster International Airport throughout July is predominantly from the east, with a peak proportion of 98% on July 13.
Wind Direction in July at Sangster International Airport
Sangster 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 Sangster International Airport is essentially constant during July, remaining around 84°F throughout.
Average Water Temperature in July at Sangster International Airport
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 Sangster 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.
Time Spent in Various Temperature Bands and the Growing Season in July at Sangster International Airport
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
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 Sangster International Airport are very rapidly increasing during July, increasing by 979°F, from 5,386°F to 6,365°F, over the course of the month.
Growing Degree Days in July at Sangster International Airport
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 Sangster International Airport is essentially constant during July, remaining within 0.1 kWh of 4.7 kWh throughout.
Average Daily Incident Shortwave Solar Energy in July at Sangster International Airport
For the purposes of this report, the geographical coordinates of Sangster International Airport are 18.504 deg latitude, -77.913 deg longitude, and 0 ft elevation.
The topography within 2 miles of Sangster International Airport contains significant variations in elevation, with a maximum elevation change of 728 feet and an average elevation above sea level of 114 feet. Within 10 miles contains significant variations in elevation (1,900 feet). Within 50 miles contains very significant variations in elevation (3,291 feet).
The area within 2 miles of Sangster International Airport is covered by water (58%), cropland (15%), and grassland (15%), within 10 miles by water (60%) and trees (19%), and within 50 miles by water (74%) and trees (13%).
This report illustrates the typical weather at Sangster International Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
Sangster International Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
In this case, the only station close and reliable enough to use as a fallback is Norman Manley International Airport.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for airports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.