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September Weather in Yumbe Uganda

Daily high temperatures are around 81°F, rarely falling below 77°F or exceeding 88°F.

Daily low temperatures are around 66°F, rarely falling below 63°F or exceeding 68°F.

For reference, on February 29, the hottest day of the year, temperatures in Yumbe typically range from 71°F to 97°F, while on July 14, the coldest day of the year, they range from 65°F to 81°F.

Average High and Low Temperature in September in Yumbe

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 September. 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 September in Yumbe

Average Hourly Temperature in September in YumbeSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOctcomfortablecomfortablewarm
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.

Atenas, Costa Rica (7,920 miles away); Medina, Colombia (7,210 miles); and Barquisimeto, Venezuela (6,903 miles) are the far-away foreign places with temperatures most similar to Yumbe (view comparison).

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The month of September in Yumbe experiences rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 52% to 67%.

The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 48% of the time.

For reference, on April 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 83%, while on August 30, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 49%.

Cloud Cover Categories in September in Yumbe

Cloud Cover Categories in September in YumbeSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOctSep 148%Sep 148%Sep 3033%Sep 3033%Sep 1145%Sep 1145%Sep 2140%Sep 2140%clearmostly clearpartly cloudymostly cloudyovercast
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 Yumbe, the chance of a wet day over the course of September is essentially constant, remaining around 61% throughout.

For reference, the year's highest daily chance of a wet day is 67% on August 4, and its lowest chance is 5% on January 21.

Probability of Precipitation in September in Yumbe

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 September in Yumbe is essentially constant, remaining about 5.4 inches throughout, and rarely exceeding 9.3 inches or falling below 1.7 inches.

Average Monthly Rainfall in September in Yumbe

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 September in Yumbe, the length of the day is essentially constant. The shortest day of the month is September 30, with 12 hours, 5 minutes of daylight and the longest day is September 1, with 12 hours, 10 minutes of daylight.

Hours of Daylight and Twilight in September in Yumbe

Hours of Daylight and Twilight in September in YumbeSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrAugOctSep 2212 hr, 7 minSep 2212 hr, 7 minnightnightdaydaySep 112 hr, 10 minSep 112 hr, 10 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 latest sunrise of the month in Yumbe is 6:49 AM on September 1 and the earliest sunrise is 7 minutes earlier at 6:42 AM on September 30.

The latest sunset is 7:00 PM on September 1 and the earliest sunset is 13 minutes earlier at 6:47 PM on September 30.

Daylight saving time is not observed in Yumbe during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:47 AM and sets 12 hours, 19 minutes later, at 7:06 PM, while on December 21, the shortest day of the year, it rises at 6:55 AM and sets 11 hours, 55 minutes later, at 6:51 PM.

Sunrise & Sunset with Twilight in September in Yumbe

Sunrise & Sunset with Twilight in September in YumbeSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930302 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMAugOct6:42 AM6:42 AMSep 306:47 PMSep 306:47 PM6:49 AM6:49 AMSep 17:00 PMSep 17:00 PM6:47 AM6:47 AMSep 116:55 PMSep 116:55 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of September. 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 September in Yumbe

Solar Elevation and Azimuth in September in YumbeSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 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 AMAugOct001010202020303040405050506060707080000101020203030304040505060606070708080
northeastsouthwest
Solar elevation and azimuth over the course of September 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 September 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 September in Yumbe

Moon Rise, Set & Phases in September in YumbeSep11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303012 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMAugOctAug 42:14 PMAug 42:14 PMAug 199:26 PMAug 199:26 PMSep 34:56 AMSep 34:56 AMSep 185:35 AMSep 185:35 AMOct 29:50 PMOct 29:50 PMOct 172:27 PMOct 172:27 PM6:45 AM6:45 AM7:21 PM7:21 PM7:01 PM7:01 PM7:21 AM7:21 AM6:58 AM6:58 AM7:22 PM7:22 PM6:29 PM6:29 PM6:52 AM6:52 AM6:19 AM6:19 AM6:37 PM6:37 PM6:44 PM6:44 PM7:18 AM7:18 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.
Sep 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
3%5:30 AMENE6:02 PMWNW-11:47 AMN248,653 mi
2
0%6:16 AMENE6:43 PMWNW-12:31 PMN250,159 mi
3
0%6:58 AME7:22 PMW-1:11 PMN251,315 mi
4
2%7:39 AME8:00 PMW-1:50 PMS252,082 mi
5
5%8:20 AME8:37 PMW-2:28 PMS252,402 mi
6
10%9:00 AME9:15 PMW-3:07 PMS252,202 mi
7
17%9:42 AMESE9:55 PMWSW-3:47 PMS251,408 mi
8
25%10:26 AMESE10:38 PMWSW-4:31 PMS249,955 mi
9
34%11:13 AMESE11:24 PMWSW-5:17 PMS247,808 mi
10
44%12:03 PMESE--6:09 PMS244,980 mi
11
50%-12:15 AMWSW12:58 PMESE7:04 PMS241,553 mi
12
65%-1:10 AMWSW1:55 PMESE8:02 PMS237,688 mi
13
75%-2:08 AMWSW2:53 PMESE9:01 PMS233,634 mi
14
85%-3:08 AMWSW3:50 PMESE10:00 PMS229,717 mi
15
92%-4:07 AMWSW4:45 PMESE10:56 PMS226,296 mi
16
98%-5:04 AMWSW5:38 PMESE11:49 PMS223,721 mi
17
99%-5:59 AMW6:29 PME--
18
100%-6:52 AMW7:18 PME12:41 AMS222,270 mi
19
99%-7:46 AMW8:08 PME1:31 AMS222,094 mi
20
95%-8:40 AMWNW9:00 PMENE2:23 AMN223,194 mi
21
88%-9:36 AMWNW9:54 PMENE3:16 AMN225,417 mi
22
79%-10:34 AMWNW10:50 PMENE4:12 AMN228,494 mi
23
68%-11:34 AMWNW11:49 PMENE5:11 AMN232,094 mi
24
50%-12:34 PMWNW-6:11 AMN235,879 mi
25
46%12:47 AMENE1:32 PMWNW-7:10 AMN239,556 mi
26
35%1:44 AMENE2:26 PMWNW-8:06 AMN242,909 mi
27
26%2:38 AMENE3:16 PMWNW-8:58 AMN245,802 mi
28
17%3:28 AMENE4:01 PMWNW-9:46 AMN248,171 mi
29
11%4:14 AMENE4:43 PMWNW-10:30 AMN250,005 mi
30
5%4:57 AME5:22 PMW-11:11 AMN251,325 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 Yumbe is increasing during September, rising from 65% to 73% over the course of the month.

For reference, on May 14, the muggiest day of the year, there are muggy conditions 79% of the time, while on February 3, the least muggy day of the year, there are muggy conditions 2% of the time.

Humidity Comfort Levels in September in Yumbe

Humidity Comfort Levels in September in YumbeSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%AugOctSep 165%Sep 165%Sep 3073%Sep 3073%Sep 1168%Sep 1168%Sep 2170%Sep 2170%muggymuggyhumidhumidoppressiveoppressivecomfortablecomfortable
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 Yumbe is essentially constant during September, remaining within 0.1 miles per hour of 4.8 miles per hour throughout.

For reference, on February 5, the windiest day of the year, the daily average wind speed is 8.0 miles per hour, while on July 18, the calmest day of the year, the daily average wind speed is 4.3 miles per hour.

Average Wind Speed in September in Yumbe

Average Wind Speed in September in YumbeSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mphAugOctSep 14.7 mphSep 14.7 mphSep 304.8 mphSep 304.8 mphSep 114.8 mphSep 114.8 mph
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 Yumbe throughout September is predominantly from the west, with a peak proportion of 46% on September 16.

Wind Direction in September in Yumbe

Wind Direction in September in YumbeWNSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%20%80%40%60%60%40%80%20%100%0%AugOctwesteastnorthsouth
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 Yumbe 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 September in Yumbe

Time Spent in Various Temperature Bands and the Growing Season in September in YumbeSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%AugOct100%Sep 16100%Sep 16coolcomfortablewarmhot
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 Yumbe are rapidly increasing during September, increasing by 670°F, from 6,300°F to 6,970°F, over the course of the month.

Growing Degree Days in September in Yumbe

Growing Degree Days in September in YumbeSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930306,000°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°F7,400°F7,400°FAugOctSep 16,300°FSep 16,300°FSep 306,970°FSep 306,970°FSep 116,530°FSep 116,530°F
The average growing degree days accumulated over the course of September, 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 Yumbe is essentially constant during September, remaining within 0.1 kWh of 5.7 kWh throughout.

The highest average daily incident shortwave solar energy during September is 5.7 kWh on September 9.

Average Daily Incident Shortwave Solar Energy in September in Yumbe

Average Daily Incident Shortwave Solar Energy in September in YumbeSep1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930300 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhAugOctSep 95.7 kWhSep 95.7 kWhSep 305.6 kWhSep 305.6 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 Yumbe are 3.465 deg latitude, 31.247 deg longitude, and 3,222 ft elevation.

The topography within 2 miles of Yumbe contains only modest variations in elevation, with a maximum elevation change of 253 feet and an average elevation above sea level of 3,180 feet. Within 10 miles contains only modest variations in elevation (1,339 feet). Within 50 miles contains very significant variations in elevation (3,560 feet).

The area within 2 miles of Yumbe is covered by cropland (100%), within 10 miles by cropland (55%) and trees (39%), and within 50 miles by shrubs (34%) and cropland (33%).

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

Yumbe 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 Yumbe, 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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