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August Weather in Bumbuna Sierra Leone

Daily high temperatures are around 81°F, rarely falling below 78°F or exceeding 85°F. The lowest daily average high temperature is 81°F on August 16.

Daily low temperatures are around 71°F, rarely falling below 69°F or exceeding 73°F. The lowest daily average low temperature is 71°F on August 5.

For reference, on March 20, the hottest day of the year, temperatures in Bumbuna typically range from 74°F to 97°F, while on January 1, the coldest day of the year, they range from 64°F to 88°F.

Average High and Low Temperature in August in Bumbuna

Average High and Low Temperature in August in BumbunaAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313168°F68°F70°F70°F72°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°F86°F86°F88°F88°F90°F90°FJulSepAug 1381°FAug 1381°F71°F71°FAug 182°FAug 182°F71°F71°FAug 3182°FAug 3182°F71°F71°FAug 2181°FAug 2181°F71°F71°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 temperatures for the quarter of the year centered on August. 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 August in Bumbuna

Average Hourly Temperature in August in BumbunaAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMJulSepcomfortablecomfortablewarm
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.

Maddūr, India (6,009 miles away) is the far-away foreign place with temperatures most similar to Bumbuna (view comparison).

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The month of August in Bumbuna experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 79% throughout the month. The highest chance of overcast or mostly cloudy conditions is 80% on August 25.

The clearest day of the month is August 1, with clear, mostly clear, or partly cloudy conditions 22% of the time.

For reference, on August 23, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 80%, while on January 15, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 61%.

Cloud Cover Categories in August in Bumbuna

Cloud Cover Categories in August in BumbunaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSepJan 1561%Jan 1561%Aug 122%Aug 122%Aug 3120%Aug 3120%Aug 1120%Aug 1120%Aug 2120%Aug 2120%mostly clearpartly cloudymostly cloudyovercastclear
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 Bumbuna, the chance of a wet day over the course of August is gradually increasing, starting the month at 84% and ending it at 86%.

For reference, the year's highest daily chance of a wet day is 89% on August 18, and its lowest chance is 1% on January 4.

Probability of Precipitation in August in Bumbuna

Probability of Precipitation in August in BumbunaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%JulSepAug 1789%Aug 1789%Aug 184%Aug 184%Aug 3186%Aug 3186%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 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 August in Bumbuna is decreasing, starting the month at 19.4 inches, when it rarely exceeds 36.0 inches or falls below 4.3 inches, and ending the month at 18.4 inches, when it rarely exceeds 31.4 inches or falls below 4.4 inches.

The highest average 31-day accumulation is 20.5 inches on August 15.

Average Monthly Rainfall in August in Bumbuna

Average Monthly Rainfall in August in BumbunaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 in0 in5 in5 in10 in10 in15 in15 in20 in20 in25 in25 in30 in30 in35 in35 in40 in40 inJulSepAug 1420.5 inAug 1420.5 inAug 119.4 inAug 119.4 inAug 3118.4 inAug 3118.4 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 August in Bumbuna, the length of the day is essentially constant. The shortest day of the month is August 31, with 12 hours, 17 minutes of daylight and the longest day is August 1, with 12 hours, 30 minutes of daylight.

Hours of Daylight and Twilight in August in Bumbuna

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 month in Bumbuna is 6:38 AM on August 1 and the latest sunrise is 57 seconds later at 6:38 AM on August 18.

The latest sunset is 7:08 PM on August 1 and the earliest sunset is 13 minutes earlier at 6:55 PM on August 31.

Daylight saving time is not observed in Bumbuna during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:29 AM and sets 12 hours, 39 minutes later, at 7:08 PM, while on December 21, the shortest day of the year, it rises at 6:57 AM and sets 11 hours, 36 minutes later, at 6:33 PM.

Sunrise & Sunset with Twilight in August in Bumbuna

Sunrise & Sunset with Twilight in August in BumbunaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031312 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJulSep6:38 AM6:38 AMAug 17:08 PMAug 17:08 PM6:38 AM6:38 AMAug 316:55 PMAug 316:55 PM6:38 AM6:38 AMAug 187:02 PMAug 187:02 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of August. 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 August in Bumbuna

Solar Elevation and Azimuth in August in BumbunaAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMJulSep0010102020203030404050505060607070800001010202030303040405050606060707080
northeastsouthwest
Solar elevation and azimuth over the course of August 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 August 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 August in Bumbuna

Moon Rise, Set & Phases in August in BumbunaAug112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMJulSepJul 510:58 PMJul 510:58 PMJul 2110:18 AMJul 2110:18 AMAug 411:14 AMAug 411:14 AMAug 196:26 PMAug 196:26 PMSep 31:56 AMSep 31:56 AMSep 182:35 AMSep 182:35 AM5:55 AM5:55 AM7:04 PM7:04 PM6:38 PM6:38 PM6:31 AM6:31 AM6:34 AM6:34 AM7:26 PM7:26 PM7:06 PM7:06 PM7:14 AM7:14 AM6:52 AM6:52 AM7:21 PM7:21 PM6:29 PM6:29 PM6:50 AM6:50 AM
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.
Aug 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
10%3:47 AMENE4:57 PMWNW-10:22 AMN240,301 mi
2
4%4:44 AMENE5:51 PMWNW-11:19 AMN242,530 mi
3
1%5:41 AMENE6:41 PMWNW-12:12 PMN244,690 mi
4
0%6:34 AMENE7:26 PMWNW-1:02 PMN246,728 mi
5
1%7:24 AMENE8:07 PMWNW-1:47 PMN248,564 mi
6
4%8:11 AMENE8:45 PMW-2:29 PMN250,096 mi
7
9%8:55 AME9:21 PMW-3:09 PMS251,211 mi
8
16%9:38 AME9:56 PMW-3:47 PMS251,786 mi
9
23%10:20 AME10:31 PMW-4:26 PMS251,710 mi
10
32%11:04 AME11:08 PMWSW-5:05 PMS250,899 mi
11
41%11:49 AMESE11:47 PMWSW-5:47 PMS249,307 mi
12
50%12:37 PMESE--6:33 PMS246,947 mi
13
62%-12:30 AMWSW1:28 PMESE7:23 PMS243,900 mi
14
72%-1:18 AMWSW2:24 PMESE8:17 PMS240,323 mi
15
81%-2:12 AMWSW3:22 PMESE9:16 PMS236,458 mi
16
89%-3:10 AMWSW4:21 PMESE10:17 PMS232,612 mi
17
95%-4:12 AMWSW5:19 PMESE11:18 PMS229,132 mi
18
98%-5:14 AMWSW6:15 PMESE--
19
100%-6:16 AMWSW7:06 PMESE12:16 AMS226,350 mi
20
100%-7:14 AMWSW7:54 PME1:11 AMS224,531 mi
21
98%-8:11 AMW8:41 PME2:03 AMS223,822 mi
22
92%-9:06 AMW9:26 PME2:53 AMS224,237 mi
23
84%-10:02 AMW10:12 PMENE3:43 AMS225,661 mi
24
74%-10:58 AMWNW11:00 PMENE4:33 AMN227,883 mi
25
63%-11:55 AMWNW11:51 PMENE5:26 AMN230,646 mi
26
50%-12:54 PMWNW-6:21 AMN233,686 mi
27
40%12:45 AMENE1:54 PMWNW-7:19 AMN236,778 mi
28
30%1:42 AMENE2:52 PMWNW-8:17 AMN239,748 mi
29
20%2:39 AMENE3:47 PMWNW-9:14 AMN242,485 mi
30
12%3:36 AMENE4:38 PMWNW-10:08 AMN244,927 mi
31
6%4:29 AMENE5:24 PMWNW-10:58 AMN247,051 mi

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 Bumbuna is essentially constant during August, remaining around 100% throughout.

For reference, on July 9, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 2, the least muggy day of the year, there are muggy conditions 23% of the time.

Humidity Comfort Levels in August in Bumbuna

Humidity Comfort Levels in August in BumbunaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%JulSepAug 1100%Aug 1100%Aug 31100%Aug 31100%Aug 11100%Aug 11100%Aug 21100%Aug 21100%miserablemiserableoppressiveoppressivemuggymuggy
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 Bumbuna is gradually decreasing during August, decreasing from 7.8 miles per hour to 7.0 miles per hour over the course of the month.

For reference, on August 7, the windiest day of the year, the daily average wind speed is 7.9 miles per hour, while on November 4, the calmest day of the year, the daily average wind speed is 3.8 miles per hour.

The highest daily average wind speed during August is 7.9 miles per hour on August 7.

Average Wind Speed in August in Bumbuna

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction in Bumbuna throughout August is predominantly from the west, with a peak proportion of 60% on August 15.

Wind Direction in August in Bumbuna

Wind Direction in August in BumbunaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%JulSepwestsoutheast
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).

Temperatures in Bumbuna 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 August in Bumbuna

Time Spent in Various Temperature Bands and the Growing Season in August in BumbunaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JulSep100%Aug 16100%Aug 16100%Jul 2100%Jul 2comfortablewarmhot
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 Bumbuna are rapidly increasing during August, increasing by 760°F, from 6,073°F to 6,833°F, over the course of the month.

Growing Degree Days in August in Bumbuna

Growing Degree Days in August in BumbunaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031316,000°F6,000°F6,200°F6,200°F6,400°F6,400°F6,600°F6,600°F6,800°F6,800°F7,000°F7,000°F7,200°F7,200°FJulSepAug 16,073°FAug 16,073°FAug 316,833°FAug 316,833°FAug 116,325°FAug 116,325°FAug 216,577°FAug 216,577°F
The average growing degree days accumulated over the course of August, 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 Bumbuna is essentially constant during August, remaining around 4.4 kWh throughout.

The lowest average daily incident shortwave solar energy during August is 4.3 kWh on August 9.

Average Daily Incident Shortwave Solar Energy in August in Bumbuna

Average Daily Incident Shortwave Solar Energy in August in BumbunaAug11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWhJulSepAug 94.3 kWhAug 94.3 kWhAug 314.4 kWhAug 314.4 kWhAug 214.4 kWhAug 214.4 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 Bumbuna are 9.045 deg latitude, -11.746 deg longitude, and 417 ft elevation.

The topography within 2 miles of Bumbuna contains very significant variations in elevation, with a maximum elevation change of 1,752 feet and an average elevation above sea level of 727 feet. Within 10 miles contains very significant variations in elevation (2,779 feet). Within 50 miles contains large variations in elevation (6,214 feet).

The area within 2 miles of Bumbuna is covered by trees (54%), cropland (22%), and grassland (19%), within 10 miles by trees (54%) and grassland (18%), and within 50 miles by trees (61%) and cropland (17%).

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

Bumbuna is further than 200 kilometers from the nearest reliable weather station, so the weather-related data on this page were taken entirely from NASA's MERRA-2 satellite-era reanalysis . 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.

The temperature and dew point estimates are corrected for the difference between the reference elevation of the MERRA-2 grid cell and the elevation of Bumbuna, according to the International Standard Atmosphere .

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.

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 © OpenStreetMap contributors.

Disclaimer

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.

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