Average Weather in May in Laela Tanzania
Daily high temperatures are around 77°F, rarely falling below 74°F or exceeding 81°F. The highest daily average high temperature is 78°F on May 23.
Daily low temperatures decrease by 5°F, from 58°F to 53°F, rarely falling below 49°F or exceeding 61°F.
For reference, on October 9, the hottest day of the year, temperatures in Laela typically range from 62°F to 84°F, while on July 5, the coldest day of the year, they range from 50°F to 77°F.
Average High and Low Temperature in May
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on May. 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 May
The month of May in Laela experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 51% to 33%.
The clearest day of the month is May 31, with clear, mostly clear, or partly cloudy conditions 67% of the time.
For reference, on January 13, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 86%, while on July 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 82%.
Cloud Cover Categories in May
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 Laela, the chance of a wet day over the course of May is very rapidly decreasing, starting the month at 15% and ending it at 1%.
For reference, the year's highest daily chance of a wet day is 77% on January 27, and its lowest chance is -0% on July 7.
Probability of Precipitation in May
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 May in Laela is rapidly decreasing, starting the month at 1.2 inches, when it rarely exceeds 2.3 inches or falls below 0.2 inches, and ending the month at 0.1 inches, when it rarely exceeds 0.3 inches or falls below -0.0 inches.
Average Monthly Rainfall in May
Over the course of May in Laela, the length of the day is essentially constant. The shortest day of the month is May 31, with 11 hours, 40 minutes of daylight and the longest day is May 1, with 11 hours, 48 minutes of daylight.
Hours of Daylight and Twilight in May
The earliest sunrise of the month in Laela is 6:54 AM on May 1 and the latest sunrise is 5 minutes later at 6:59 AM on May 31.
The latest sunset is 6:42 PM on May 1 and the earliest sunset is 4 minutes earlier at 6:39 PM on May 27.
Daylight saving time is not observed in Laela during 2018.
For reference, on December 21, the longest day of the year, the Sun rises at 6:30 AM and sets 12 hours, 38 minutes later, at 7:08 PM, while on June 21, the shortest day of the year, it rises at 7:04 AM and sets 11 hours, 37 minutes later, at 6:42 PM.
Sunrise & Sunset with Twilight in May
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 Laela is essentially constant during May, remaining around 0% throughout.
For reference, on February 10, the muggiest day of the year, there are muggy conditions 0% of the time, while on April 26, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in May
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Laela is essentially constant during May, remaining within 0.1 miles per hour of 8.6 miles per hour throughout.
For reference, on September 28, the windiest day of the year, the daily average wind speed is 9.4 miles per hour, while on February 21, the calmest day of the year, the daily average wind speed is 5.1 miles per hour.
Average Wind Speed in May
Wind Direction in May
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 Laela 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 May
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 Laela are rapidly increasing during May, increasing by 475°F, from 5,677°F to 6,152°F, over the course of the month.
Growing Degree Days in May
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 Laela is essentially constant during May, remaining within 0.1 kWh of 6.2 kWh throughout.
The highest average daily incident shortwave solar energy during May is 6.3 kWh on May 4.
Average Daily Incident Shortwave Solar Energy in May
For the purposes of this report, the geographical coordinates of Laela are -8.567 deg latitude, 32.050 deg longitude, and 5,226 ft elevation.
The topography within 2 miles of Laela contains very significant variations in elevation, with a maximum elevation change of 942 feet and an average elevation above sea level of 5,224 feet. Within 10 miles contains very significant variations in elevation (4,094 feet). Within 50 miles also contains extreme variations in elevation (5,308 feet).
The area within 2 miles of Laela is covered by cropland (44%), shrubs (40%), and artificial surfaces (13%), within 10 miles by trees (37%) and cropland (37%), and within 50 miles by shrubs (31%) and trees (21%).
This report illustrates the typical weather in Laela year round, 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 are 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Laela.
For each station, the records are corrected for the elevation difference between that station and Laela according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Laela is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Laela and a given station.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . 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.
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 aiports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.