Average Weather in April in Bloemfontein South Africa
Daily high temperatures decrease by 6°F, from 76°F to 71°F, rarely falling below 62°F or exceeding 84°F.
Daily low temperatures decrease by 10°F, from 50°F to 41°F, rarely falling below 33°F or exceeding 56°F.
For reference, on January 1, the hottest day of the year, temperatures in Bloemfontein typically range from 59°F to 86°F, while on July 4, the coldest day of the year, they range from 28°F to 61°F.
Average High and Low Temperature in April
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on April. 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 April
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 April in Bloemfontein experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 22% throughout the month. The highest chance of overcast or mostly cloudy conditions is 23% on April 18.
The clearest day of the month is April 1, with clear, mostly clear, or partly cloudy conditions 79% of the time.
For reference, on October 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 32%, while on July 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 87%.
Cloud Cover Categories in April
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 Bloemfontein, the chance of a wet day over the course of April is very rapidly decreasing, starting the month at 22% and ending it at 13%.
For reference, the year's highest daily chance of a wet day is 35% on February 3, and its lowest chance is 2% on July 15.
Probability of Precipitation in April
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 April in Bloemfontein is decreasing, starting the month at 1.8 inches, when it rarely exceeds 4.0 inches or falls below 0.4 inches, and ending the month at 0.9 inches, when it rarely exceeds 2.2 inches or falls below 0.1 inches.
Average Monthly Rainfall in April
Over the course of April in Bloemfontein, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 47 minutes, implying an average daily decrease of 1 minute, 37 seconds, and weekly decrease of 11 minutes, 19 seconds.
The shortest day of the month is April 30, with 11 hours, 0 minutes of daylight and the longest day is April 1, with 11 hours, 47 minutes of daylight.
Hours of Daylight and Twilight in April
The earliest sunrise of the month in Bloemfontein is 6:25 AM on April 1 and the latest sunrise is 17 minutes later at 6:42 AM on April 30.
The latest sunset is 6:12 PM on April 1 and the earliest sunset is 30 minutes earlier at 5:42 PM on April 30.
Daylight saving time is not observed in Bloemfontein during 2019.
For reference, on December 22, the longest day of the year, the Sun rises at 5:13 AM and sets 14 hours, 1 minute later, at 7:13 PM, while on June 21, the shortest day of the year, it rises at 7:08 AM and sets 10 hours, 17 minutes later, at 5:25 PM.
Sunrise & Sunset with Twilight in April
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 Bloemfontein is essentially constant during April, remaining around 0% throughout.
For reference, on January 13, the muggiest day of the year, there are muggy conditions 1% of the time, while on April 13, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in April
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 Bloemfontein is essentially constant during April, remaining within 0.2 miles per hour of 7.2 miles per hour throughout.
For reference, on November 7, the windiest day of the year, the daily average wind speed is 9.8 miles per hour, while on April 1, the calmest day of the year, the daily average wind speed is 7.0 miles per hour.
The lowest daily average wind speed during April is 7.0 miles per hour on April 1.
Average Wind Speed in April
The hourly average wind direction in Bloemfontein throughout April is predominantly from the north, with a peak proportion of 36% on April 7.
Wind Direction in April
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 Bloemfontein typically lasts for 7.8 months (236 days), from around September 14 to around May 7, rarely starting before August 22 or after October 6, and rarely ending before April 16 or after May 31.
The month of April in Bloemfontein is more likely than not fully within the growing season, with the chance that a given day is in the growing season rapidly decreasing from 99% to 66% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in April
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 in Bloemfontein are increasing during April, increasing by 288°F, from 3,935°F to 4,223°F, over the course of the month.
Growing Degree Days in April
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 Bloemfontein is decreasing during April, falling by 1.1 kWh, from 5.9 kWh to 4.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in April
For the purposes of this report, the geographical coordinates of Bloemfontein are -29.121 deg latitude, 26.214 deg longitude, and 4,629 ft elevation.
The topography within 2 miles of Bloemfontein contains only modest variations in elevation, with a maximum elevation change of 443 feet and an average elevation above sea level of 4,618 feet. Within 10 miles contains only modest variations in elevation (945 feet). Within 50 miles contains very significant variations in elevation (3,071 feet).
The area within 2 miles of Bloemfontein is covered by artificial surfaces (100%), within 10 miles by grassland (42%) and artificial surfaces (30%), and within 50 miles by grassland (66%) and cropland (22%).
This report illustrates the typical weather in Bloemfontein year round, 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 Bloemfontein.
For each station, the records are corrected for the elevation difference between that station and Bloemfontein 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 Bloemfontein is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Bloemfontein 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 Tables of the Sun, Moon and Planets , 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 aiports 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.