Average Weather in September in Lobamba Swaziland
Daily high temperatures are around 76°F, rarely falling below 62°F or exceeding 90°F. The highest daily average high temperature is 77°F on September 23.
Daily low temperatures increase by 4°F, from 54°F to 57°F, rarely falling below 48°F or exceeding 63°F.
For reference, on January 20, the hottest day of the year, temperatures in Lobamba typically range from 66°F to 80°F, while on July 6, the coldest day of the year, they range from 49°F to 70°F.
Average High and Low Temperature in September
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
Ponta Grossa, Brazil (4,973 miles away); Petrópolis, Brazil (4,623 miles); and Agadir, Morocco (4,771 miles) are the far-away foreign places with temperatures most similar to Lobamba (view comparison).
The month of September in Lobamba experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 16% to 24%.
The clearest day of the month is September 1, with clear, mostly clear, or partly cloudy conditions 84% of the time.
For reference, on December 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 44%, while on June 13, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 90%.
Cloud Cover Categories in September
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 Lobamba, the chance of a wet day over the course of September is very rapidly increasing, starting the month at 8% and ending it at 17%.
For reference, the year's highest daily chance of a wet day is 51% on December 17, and its lowest chance is 3% on July 8.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Lobamba is increasing, starting the month at 0.7 inches, when it rarely exceeds 1.8 inches, and ending the month at 1.5 inches, when it rarely exceeds 3.0 inches or falls below 0.3 inches.
Average Monthly Rainfall in September
Over the course of September in Lobamba, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 44 minutes, implying an average daily increase of 1 minute, 32 seconds, and weekly increase of 10 minutes, 42 seconds.
The shortest day of the month is September 1, with 11 hours, 35 minutes of daylight and the longest day is September 30, with 12 hours, 19 minutes of daylight.
Hours of Daylight and Twilight in September
The latest sunrise of the month in Lobamba is 6:07 AM on September 1 and the earliest sunrise is 32 minutes earlier at 5:35 AM on September 30.
The earliest sunset is 5:42 PM on September 1 and the latest sunset is 12 minutes later at 5:54 PM on September 30.
Daylight saving time is not observed in Lobamba during 2021.
For reference, on December 21, the longest day of the year, the Sun rises at 4:59 AM and sets 13 hours, 48 minutes later, at 6:47 PM, while on June 21, the shortest day of the year, it rises at 6:42 AM and sets 10 hours, 29 minutes later, at 5:11 PM.
Sunrise & Sunset with Twilight in September
The figure below presents a compact representation of key lunar data for September 2021. 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
The chance that a given day will be muggy in Lobamba is essentially constant during September, remaining around 0% throughout.
For reference, on February 11, the muggiest day of the year, there are muggy conditions 29% of the time, while on June 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in September
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Lobamba is essentially constant during September, remaining within 0.3 miles per hour of 7.4 miles per hour throughout.
For reference, on September 25, the windiest day of the year, the daily average wind speed is 7.7 miles per hour, while on March 30, the calmest day of the year, the daily average wind speed is 5.3 miles per hour.
The highest daily average wind speed during September is 7.7 miles per hour on September 25.
Average Wind Speed in September
The wind direction in Lobamba during September is predominantly out of the north from September 1 to September 29 and the east from September 29 to September 30.
Wind Direction in September
Temperatures in Lobamba 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
The average accumulated growing degree days in Lobamba are rapidly increasing during September, increasing by 452°F, from 660°F to 1,112°F, over the course of the month.
Growing Degree Days in September
The average daily incident shortwave solar energy in Lobamba is gradually increasing during September, rising by 0.8 kWh, from 5.5 kWh to 6.2 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Lobamba are -26.467 deg latitude, 31.200 deg longitude, and 2,277 ft elevation.
The topography within 2 miles of Lobamba contains very significant variations in elevation, with a maximum elevation change of 1,119 feet and an average elevation above sea level of 2,342 feet. Within 10 miles contains very significant variations in elevation (3,091 feet). Within 50 miles contains large variations in elevation (5,863 feet).
The area within 2 miles of Lobamba is covered by cropland (61%) and grassland (26%), within 10 miles by cropland (46%) and grassland (39%), and within 50 miles by grassland (37%) and cropland (34%).
This report illustrates the typical weather in Lobamba, 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 is only a single weather station, Nelspruit Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Lobamba.
At a distance of 117 kilometers from Lobamba, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.
The station records are corrected for the elevation difference between the station and Lobamba according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.
Time zones for airports and weather stations are provided by AskGeo.com .