Fall Weather in Luanda Kenya

Daily high temperatures are around 82°F, rarely falling below 77°F or exceeding 87°F.

Daily low temperatures are around 65°F, rarely falling below 61°F or exceeding 67°F. The highest daily average low temperature is 65°F on October 19.

For reference, on February 11, the hottest day of the year, temperatures in Luanda typically range from 65°F to 86°F, while on July 12, the coldest day of the year, they range from 64°F to 81°F.

The figure below shows you a compact characterization of the hourly average fall 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.

La Plata, Colombia (7,603 miles away) and Nirgua, Venezuela (7,081 miles) are the far-away foreign places with temperatures most similar to Luanda (view comparison).

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The fall in Luanda experiences very rapidly increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 50% to 71%. The highest chance of overcast or mostly cloudy conditions is 77% on November 3.

The clearest day of the fall is September 1, with clear, mostly clear, or partly cloudy conditions 50% of the time.

For reference, on April 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 84%, while on August 31, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 50%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Luanda, the chance of a wet day over the course of the fall is very rapidly decreasing, starting the season at 66% and ending it at 45%.

For reference, the year's highest daily chance of a wet day is 82% on May 2, and its lowest chance is 24% on February 11.

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 fall in Luanda is essentially constant, remaining about 5.1 inches throughout, and rarely exceeding 10.5 inches or falling below 1.1 inches.

The highest average 31-day accumulation is 5.9 inches on November 2.

Over the course of the fall in Luanda, the length of the day is essentially constant. The shortest day of the fall is October 28, with 12 hours, 6 minutes of daylight and the longest day is September 1, with 12 hours, 7 minutes of daylight.

The latest sunrise of the fall in Luanda is 6:40 AM on September 1 and the earliest sunrise is 16 minutes earlier at 6:24 AM on November 2.

The latest sunset is 6:47 PM on September 1 and the earliest sunset is 17 minutes earlier at 6:30 PM on November 3.

Daylight saving time is not observed in Luanda during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:41 AM and sets 12 hours, 8 minutes later, at 6:49 PM, while on December 21, the shortest day of the year, it rises at 6:38 AM and sets 12 hours, 6 minutes later, at 6:45 PM.

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.

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

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 Luanda is rapidly increasing during the fall, rising from 16% to 31% over the course of the season.

The highest chance of a muggy day during the fall is 37% on October 31.

For reference, on May 1, the muggiest day of the year, there are muggy conditions 73% of the time, while on July 17, the least muggy day of the year, there are muggy conditions 12% of the time.

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 Luanda is increasing during the fall, increasing from 4.4 miles per hour to 5.6 miles per hour over the course of the season.

For reference, on February 11, the windiest day of the year, the daily average wind speed is 6.5 miles per hour, while on September 24, the calmest day of the year, the daily average wind speed is 4.2 miles per hour.

The lowest daily average wind speed during the fall is 4.2 miles per hour on September 24.

The wind direction in Luanda during the fall is predominantly out of the west from September 1 to October 12 and the east from October 12 to November 30.

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 Luanda 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.

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 Luanda are very rapidly increasing during the fall, increasing by 1,991°F, from 5,476°F to 7,466°F, over the course of the season.

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 Luanda is essentially constant during the fall, remaining within 0.2 kWh of 6.0 kWh throughout.

For the purposes of this report, the geographical coordinates of Luanda are 0.297 deg latitude, 34.065 deg longitude, and 3,878 ft elevation.

The topography within 2 miles of Luanda contains only modest variations in elevation, with a maximum elevation change of 223 feet and an average elevation above sea level of 3,812 feet. Within 10 miles contains only modest variations in elevation (1,463 feet). Within 50 miles contains very significant variations in elevation (4,537 feet).

The area within 2 miles of Luanda is covered by cropland (43%), herbaceous vegetation (29%), and grassland (21%), within 10 miles by cropland (50%) and trees (17%), and within 50 miles by cropland (39%) and water (26%).