Average Weather in July in Bethlehem South Africa
Daily high temperatures increase by 3°F, from 60°F to 63°F, rarely falling below 52°F or exceeding 69°F.
Daily low temperatures increase by 2°F, from 30°F to 32°F, rarely falling below 24°F or exceeding 38°F. The lowest daily average low temperature is 30°F on July 5.
For reference, on January 2, the hottest day of the year, temperatures in Bethlehem typically range from 56°F to 79°F, while on July 5, the coldest day of the year, they range from 30°F to 60°F.
Average High and Low Temperature in July
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
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
Mutquín, Argentina (5,571 miles away); Achiras, Argentina (5,361 miles); and Oakdale, Australia (6,717 miles) are the far-away foreign places with temperatures most similar to Bethlehem (view comparison).
The month of July in Bethlehem experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 12% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 11% on July 25.
The clearest day of the month is July 25, with clear, mostly clear, or partly cloudy conditions 89% of the time.
For reference, on November 14, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 36%, while on July 25, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 89%.
Cloud Cover Categories in July
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. In Bethlehem, the chance of a wet day over the course of July is essentially constant, remaining around 3% throughout.
For reference, the year's highest daily chance of a wet day is 45% on January 22, and its lowest chance is 2% on July 16.
Probability of Precipitation in July
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 Bethlehem is essentially constant, remaining about 0.3 inches throughout, and rarely exceeding 1.3 inches.
The lowest average 31-day accumulation is 0.2 inches on July 5.
Average Monthly Rainfall in July
Over the course of July in Bethlehem, 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, 39 seconds.
The shortest day of the month is July 1, with 10 hours, 23 minutes of daylight and the longest day is July 31, with 10 hours, 47 minutes of daylight.
Hours of Daylight and Twilight in July
The latest sunrise of the month in Bethlehem is 6:59 AM on July 2 and the earliest sunrise is 10 minutes earlier at 6:49 AM on July 31.
The earliest sunset is 5:22 PM on July 1 and the latest sunset is 15 minutes later at 5:36 PM on July 31.
Daylight saving time is not observed in Bethlehem during 2021.
For reference, on December 21, the longest day of the year, the Sun rises at 5:06 AM and sets 13 hours, 56 minutes later, at 7:03 PM, while on June 21, the shortest day of the year, it rises at 6:58 AM and sets 10 hours, 21 minutes later, at 5:19 PM.
Sunrise & Sunset with Twilight in July
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
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 Bethlehem is essentially constant during July, remaining around 0% throughout.
For reference, on February 7, the muggiest day of the year, there are muggy conditions 0% of the time, while on March 23, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in July
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 in Bethlehem is gradually increasing during July, increasing from 7.7 miles per hour to 8.2 miles per hour over the course of the month.
For reference, on September 24, the windiest day of the year, the daily average wind speed is 9.7 miles per hour, while on March 31, the calmest day of the year, the daily average wind speed is 6.8 miles per hour.
Average Wind Speed in July
The hourly average wind direction in Bethlehem throughout July is predominantly from the west, with a peak proportion of 46% on July 30.
Wind Direction in July
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).
The growing season in Bethlehem typically lasts for 8.4 months (253 days), from around September 4 to around May 15, rarely starting before August 13 or after September 30, and rarely ending before April 21 or after June 6.
The month of July in Bethlehem is reliably fully outside of the growing season.
Time Spent in Various Temperature Bands and the Growing Season in July
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 Bethlehem are gradually increasing during July, increasing by 87°F, from 0°F to 87°F, over the course of the month.
Growing Degree Days in July
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 Bethlehem is gradually increasing during July, rising by 0.6 kWh, from 4.0 kWh to 4.6 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in July
For the purposes of this report, the geographical coordinates of Bethlehem are -28.231 deg latitude, 28.307 deg longitude, and 5,348 ft elevation.
The topography within 2 miles of Bethlehem contains only modest variations in elevation, with a maximum elevation change of 440 feet and an average elevation above sea level of 5,462 feet. Within 10 miles contains only modest variations in elevation (1,375 feet). Within 50 miles contains very significant variations in elevation (6,545 feet).
The area within 2 miles of Bethlehem is covered by artificial surfaces (52%) and cropland (46%), within 10 miles by cropland (75%) and grassland (21%), and within 50 miles by grassland (50%) and cropland (44%).
This report illustrates the typical weather in Bethlehem, 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
There are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Bethlehem.
For each station, the records are corrected for the elevation difference between that station and Bethlehem according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Bethlehem is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bethlehem and a given station.
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.