Average Weather in January in Bulembu Swaziland
Daily high temperatures are around 75°F, rarely falling below 67°F or exceeding 83°F. The highest daily average high temperature is 75°F on January 21.
Daily low temperatures are around 61°F, rarely falling below 56°F or exceeding 65°F. The highest daily average low temperature is 61°F on January 22.
For reference, on January 20, the hottest day of the year, temperatures in Bulembu typically range from 61°F to 75°F, while on July 8, the coldest day of the year, they range from 44°F to 65°F.
Average High and Low Temperature in January
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on January. 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 January
Oceanside, California, United States (10,500 miles away); Samaipata, Bolivia (5,979 miles); and São Bento do Sul, Brazil (4,907 miles) are the far-away foreign places with temperatures most similar to Bulembu (view comparison).
The month of January in Bulembu experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 37% throughout the month.
The clearest day of the month is January 31, with clear, mostly clear, or partly cloudy conditions 65% of the time.
For reference, on December 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 46%, while on June 13, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 91%.
Cloud Cover Categories in January
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 Bulembu, the chance of a wet day over the course of January is gradually decreasing, starting the month at 47% and ending it at 44%.
For reference, the year's highest daily chance of a wet day is 52% on December 4, and its lowest chance is 2% on July 6.
Probability of Precipitation in January
The average sliding 31-day rainfall during January in Bulembu is essentially constant, remaining about 4.5 inches throughout, and rarely exceeding 9.0 inches or falling below 1.8 inches.
The highest average 31-day accumulation is 4.7 inches on January 22.
Average Monthly Rainfall in January
Over the course of January in Bulembu, the length of the day is gradually decreasing. From the start to the end of the month, the length of the day decreases by 26 minutes, implying an average daily decrease of 52 seconds, and weekly decrease of 6 minutes, 7 seconds.
The shortest day of the month is January 31, with 13 hours, 18 minutes of daylight and the longest day is January 1, with 13 hours, 44 minutes of daylight.
Hours of Daylight and Twilight in January
The earliest sunrise of the month in Bulembu is 5:07 AM on January 1 and the latest sunrise is 23 minutes later at 5:29 AM on January 31.
The latest sunset is 6:52 PM on January 12 and the earliest sunset is 5 minutes earlier at 6:47 PM on January 31.
Daylight saving time is not observed in Bulembu during 2021.
For reference, on December 21, the longest day of the year, the Sun rises at 5:00 AM and sets 13 hours, 46 minutes later, at 6:46 PM, while on June 21, the shortest day of the year, it rises at 6:41 AM and sets 10 hours, 31 minutes later, at 5:12 PM.
Sunrise & Sunset with Twilight in January
The figure below presents a compact representation of key lunar data for January 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 January
The chance that a given day will be muggy in Bulembu is essentially constant during January, remaining within 1% of 14% throughout.
For reference, on February 7, the muggiest day of the year, there are muggy conditions 15% of the time, while on May 17, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in January
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Bulembu is essentially constant during January, remaining around 5.2 miles per hour throughout.
For reference, on September 25, the windiest day of the year, the daily average wind speed is 6.7 miles per hour, while on March 31, the calmest day of the year, the daily average wind speed is 4.6 miles per hour.
Average Wind Speed in January
The hourly average wind direction in Bulembu throughout January is predominantly from the east, with a peak proportion of 48% on January 29.
Wind Direction in January
Temperatures in Bulembu 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 January
The average accumulated growing degree days in Bulembu are rapidly increasing during January, increasing by 533°F, from 2,077°F to 2,610°F, over the course of the month.
Growing Degree Days in January
The average daily incident shortwave solar energy in Bulembu is essentially constant during January, remaining within 0.1 kWh of 7.3 kWh throughout.
The highest average daily incident shortwave solar energy during January is 7.4 kWh on January 1.
Average Daily Incident Shortwave Solar Energy in January
For the purposes of this report, the geographical coordinates of Bulembu are -25.967 deg latitude, 31.133 deg longitude, and 3,537 ft elevation.
The topography within 2 miles of Bulembu contains large variations in elevation, with a maximum elevation change of 2,274 feet and an average elevation above sea level of 3,758 feet. Within 10 miles contains large variations in elevation (4,373 feet). Within 50 miles also contains extreme variations in elevation (6,191 feet).
The area within 2 miles of Bulembu is covered by grassland (58%) and cropland (40%), within 10 miles by grassland (51%) and cropland (31%), and within 50 miles by cropland (34%) and grassland (32%).
This report illustrates the typical weather in Bulembu, 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 Bulembu.
At a distance of 61 kilometers from Bulembu, 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 Bulembu 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 .