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Summer Weather in Botswana Botswana

Daily high temperatures are around 88°F, rarely falling below 78°F or exceeding 96°F. The highest daily average high temperature is 89°F on December 29.

Daily low temperatures are around 67°F, rarely falling below 60°F or exceeding 73°F. The highest daily average low temperature is 69°F on January 22.

For reference, on December 29, the hottest day of the year, temperatures in Botswana typically range from 68°F to 89°F, while on July 7, the coldest day of the year, they range from 41°F to 71°F.

Average High and Low Temperature in the Summer in Botswana

Average High and Low Temperature in the Summer in BotswanaDecJanFeb55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°FSpringFallDec 2989°FDec 2989°F68°F68°FDec 187°FDec 187°F66°F66°FFeb 2887°FFeb 2887°F67°F67°FFeb 188°FFeb 188°F68°F68°F
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the hourly average summer temperatures. 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 the Summer in Botswana

Average Hourly Temperature in the Summer in BotswanaDecJanFeb12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSpringFallcoolcomfortablecomfortablewarmhot
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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.
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The summer in Botswana experiences decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 38% to 26%. The highest chance of overcast or mostly cloudy conditions is 39% on December 11.

The clearest day of the summer is February 28, with clear, mostly clear, or partly cloudy conditions 74% of the time.

For reference, on December 11, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 39%, while on July 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 94%.

Cloud Cover Categories in the Summer in Botswana

Cloud Cover Categories in the Summer in BotswanaDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFallJul 2394%Jul 2394%Dec 162%Dec 162%Feb 2874%Feb 2874%Jan 164%Jan 164%Feb 164%Feb 164%clearmostly clearpartly cloudyovercastmostly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Botswana, the chance of a wet day over the course of the summer is rapidly decreasing, starting the season at 37% and ending it at 30%.

For reference, the year's highest daily chance of a wet day is 41% on December 16, and its lowest chance is 0% on August 10.

Probability of Precipitation in the Summer in Botswana

Probability of Precipitation in the Summer in BotswanaDecJanFeb0%0%5%5%10%10%15%15%20%20%25%25%30%30%35%35%40%40%45%45%SpringFallDec 1641%Dec 1641%Dec 137%Dec 137%Feb 2830%Feb 2830%Jan 138%Jan 138%Feb 135%Feb 135%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the season and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day.

The average sliding 31-day rainfall during the summer in Botswana is essentially constant, remaining about 2.9 inches throughout, and rarely exceeding 6.7 inches or falling below 0.5 inches.

The highest average 31-day accumulation is 3.1 inches on January 23.

Average Monthly Rainfall in the Summer in Botswana

Average Monthly Rainfall in the Summer in BotswanaDecJanFeb0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inSpringFallJan 233.1 inJan 233.1 inDec 12.7 inDec 12.7 inFeb 282.7 inFeb 282.7 inJan 12.9 inJan 12.9 in
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.

Over the course of the summer in Botswana, the length of the day is decreasing. From the start to the end of the season, the length of the day decreases by 50 minutes, implying an average daily decrease of 34 seconds, and weekly decrease of 3 minutes, 58 seconds.

The shortest day of the summer is February 28, with 12 hours, 33 minutes of daylight and the longest day is December 21, with 13 hours, 29 minutes of daylight.

Hours of Daylight and Twilight in the Summer in Botswana

Hours of Daylight and Twilight in the Summer in BotswanaDecJanFeb0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrSpringFallDec 2113 hr, 29 minDec 2113 hr, 29 mindaydaydaydaynightFeb 2812 hr, 33 minFeb 2812 hr, 33 minFeb 113 hr, 4 minFeb 113 hr, 4 min
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise of the summer in Botswana is 5:31 AM on December 1 and the latest sunrise is 48 minutes later at 6:20 AM on February 28.

The latest sunset is 7:13 PM on January 14 and the earliest sunset is 21 minutes earlier at 6:52 PM on February 28.

Daylight saving time is not observed in Botswana during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:37 AM and sets 13 hours, 29 minutes later, at 7:06 PM, while on June 20, the shortest day of the year, it rises at 7:02 AM and sets 10 hours, 47 minutes later, at 5:49 PM.

Sunrise & Sunset with Twilight in the Summer in Botswana

Sunrise & Sunset with Twilight in the Summer in BotswanaDecJanFeb2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMSpringFall5:31 AM5:31 AMDec 16:54 PMDec 16:54 PM5:52 AM5:52 AMJan 147:13 PMJan 147:13 PM6:20 AM6:20 AMFeb 286:52 PMFeb 286:52 PM6:05 AM6:05 AMFeb 17:09 PMFeb 17:09 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day in the summer. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

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.

Solar Elevation and Azimuth in the Summer in Botswana

Solar Elevation and Azimuth in the Summer in BotswanaDecJanFeb12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMSpringFall001020203030405050606070800010102030304040506060707080
northeastsouthwest
Solar elevation and azimuth in the the summer of 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for the summer of 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.

Moon Rise, Set & Phases in the Summer in Botswana

Moon Rise, Set & Phases in the Summer in BotswanaDecJanFeb12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMSpringFallNov 12:48 PMNov 12:48 PMNov 1511:29 PMNov 1511:29 PMDec 18:22 AMDec 18:22 AMDec 1511:02 AMDec 1511:02 AMDec 3112:28 AMDec 3112:28 AMJan 1412:28 AMJan 1412:28 AMJan 292:37 PMJan 292:37 PMFeb 123:54 PMFeb 123:54 PMFeb 282:45 AMFeb 282:45 AMMar 148:55 AMMar 148:55 AMMar 2912:58 PMMar 2912:58 PM6:41 PM6:41 PM6:29 PM6:29 PM5:38 AM5:38 AM5:17 AM5:17 AM6:24 PM6:24 PM5:14 AM5:14 AM7:06 PM7:06 PM7:10 PM7:10 PM6:05 AM6:05 AM5:42 AM5:42 AM7:26 PM7:26 PM7:13 PM7:13 PM6:47 AM6:47 AM7:20 PM7:20 PM6:20 PM6:20 PM6:24 AM6:24 AM6:28 PM6:28 PM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

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 Botswana is rapidly increasing during the summer, rising from 8% to 21% over the course of the season.

The highest chance of a muggy day during the summer is 26% on January 29.

For reference, on January 29, the muggiest day of the year, there are muggy conditions 26% of the time, while on May 24, the least muggy day of the year, there are muggy conditions 0% of the time.

Humidity Comfort Levels in the Summer in Botswana

Humidity Comfort Levels in the Summer in BotswanaDecJanFeb0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%SpringFallJan 2926%Jan 2926%Dec 18%Dec 18%Feb 2821%Feb 2821%Jan 118%Jan 118%muggymuggyhumidhumidcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Botswana is decreasing during the summer, decreasing from 8.2 miles per hour to 6.9 miles per hour over the course of the season.

For reference, on October 1, the windiest day of the year, the daily average wind speed is 9.7 miles per hour, while on May 10, the calmest day of the year, the daily average wind speed is 6.3 miles per hour.

Average Wind Speed in the Summer in Botswana

Average Wind Speed in the Summer in BotswanaDecJanFeb0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mphSpringFallDec 18.2 mphDec 18.2 mphFeb 286.9 mphFeb 286.9 mphJan 17.5 mphJan 17.5 mphFeb 17.2 mphFeb 17.2 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The wind direction in Botswana during the summer is predominantly out of the north from December 1 to January 8 and the east from January 8 to February 28.

Wind Direction in the Summer in Botswana

Wind Direction in the Summer in BotswanaNEDecJanFeb0%100%20%80%40%60%60%40%80%20%100%0%SpringFalleastnorthsouthwest
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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).

While it does not do so every year, freezing temperatures are seen in Botswana over some winters. The day least likely to be in the growing season is July 1, with a 65% chance.

Time Spent in Various Temperature Bands and the Growing Season in the Summer in Botswana

Time Spent in Various Temperature Bands and the Growing Season in the Summer in BotswanaDecJanFeb0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%SpringFall100%Jan 15100%Jan 15coolcomfortablewarmhotsweltering
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 percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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 Botswana are very rapidly increasing during the summer, increasing by 2,380°F, from 2,783°F to 5,162°F, over the course of the season.

Growing Degree Days in the Summer in Botswana

Growing Degree Days in the Summer in BotswanaDecJanFeb3,000°F3,000°F3,500°F3,500°F4,000°F4,000°F4,500°F4,500°F5,000°F5,000°FSpringFallDec 12,783°FDec 12,783°FFeb 285,162°FFeb 285,162°FJan 13,609°FJan 13,609°FFeb 14,453°FFeb 14,453°F
The average growing degree days accumulated over the course of the summer, with 25th to 75th and 10th to 90th percentile bands.

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 Botswana is essentially constant during the summer, remaining within 0.4 kWh of 7.5 kWh throughout.

The highest average daily incident shortwave solar energy during the summer is 7.8 kWh on December 29.

Average Daily Incident Shortwave Solar Energy in the Summer in Botswana

Average Daily Incident Shortwave Solar Energy in the Summer in BotswanaDecJanFeb0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhSpringFallDec 297.8 kWhDec 297.8 kWhDec 17.6 kWhDec 17.6 kWhFeb 287.1 kWhFeb 287.1 kWhFeb 17.5 kWhFeb 17.5 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

For the purposes of this report, the geographical coordinates of Botswana are -22.000 deg latitude, 24.000 deg longitude, and 0 ft elevation.

The topography within 2 miles of Botswana is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (0 feet). Within 50 miles is also essentially flat (0 feet).

The area within 2 miles of Botswana is covered by grassland (100%), within 10 miles by grassland (99%), and within 50 miles by grassland (98%).

This report illustrates the typical weather in Botswana, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used for this report can be found on the Seretse Khama International Airport page.

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