Fall Weather in Hakha Myanmar (Burma)

Daily high temperatures decrease by 7°F, from 79°F to 72°F, rarely falling below 68°F or exceeding 83°F.

Daily low temperatures decrease by 15°F, from 61°F to 46°F, rarely falling below 42°F or exceeding 64°F.

For reference, on April 18, the hottest day of the year, temperatures in Hakha typically range from 56°F to 84°F, while on January 16, the coldest day of the year, they range from 40°F to 70°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.

Pretoria, South Africa (5,514 miles away) and Gweru, Zimbabwe (5,199 miles) are the far-away foreign places with temperatures most similar to Hakha (view comparison).

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The fall in Hakha experiences very rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 90% to 23%.

The clearest day of the fall is November 30, with clear, mostly clear, or partly cloudy conditions 77% of the time.

For reference, on July 22, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 94%, while on February 17, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 88%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Hakha, the chance of a wet day over the course of the fall is very rapidly decreasing, starting the season at 22% and ending it at 3%.

For reference, the year's highest daily chance of a wet day is 34% on June 29, and its lowest chance is 1% on January 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 Hakha is rapidly decreasing, starting the season at 1.7 inches, when it rarely exceeds 4.4 inches or falls below 0.1 inches, and ending the season at 0.2 inches, when it rarely exceeds 1.0 inches or falls below -0.0 inches.

Over the course of the fall in Hakha, the length of the day is rapidly decreasing. From the start to the end of the season, the length of the day decreases by 1 hour, 43 minutes, implying an average daily decrease of 1 minute, 9 seconds, and weekly decrease of 8 minutes, 0 seconds.

The shortest day of the fall is November 30, with 10 hours, 51 minutes of daylight and the longest day is September 1, with 12 hours, 34 minutes of daylight.

The earliest sunrise of the fall in Hakha is 5:58 AM on September 1 and the latest sunrise is 40 minutes later at 6:38 AM on November 30.

The latest sunset is 6:32 PM on September 1 and the earliest sunset is 1 hour, 3 minutes earlier at 5:29 PM on November 27.

Daylight saving time is not observed in Hakha during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:31 AM and sets 13 hours, 32 minutes later, at 7:02 PM, while on December 21, the shortest day of the year, it rises at 6:51 AM and sets 10 hours, 45 minutes later, at 5:36 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 Hakha is very rapidly decreasing during the fall, falling from 52% to 0% over the course of the season.

For reference, on August 12, the muggiest day of the year, there are muggy conditions 59% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% 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 Hakha is essentially constant during the fall, remaining within 0.2 miles per hour of 1.8 miles per hour throughout.

For reference, on March 29, the windiest day of the year, the daily average wind speed is 3.0 miles per hour, while on October 23, the calmest day of the year, the daily average wind speed is 1.6 miles per hour.

The lowest daily average wind speed during the fall is 1.6 miles per hour on October 24.

The wind direction in Hakha during the fall is predominantly out of the west from September 1 to October 22 and from November 23 to November 30 and the east from October 22 to November 23.

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 Hakha 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 Hakha are very rapidly increasing during the fall, increasing by 1,318°F, from 3,845°F to 5,162°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 Hakha is essentially constant during the fall, remaining within 0.3 kWh of 4.5 kWh throughout.

The lowest average daily incident shortwave solar energy during the fall is 4.3 kWh on September 30.

For the purposes of this report, the geographical coordinates of Hakha are 22.650 deg latitude, 93.617 deg longitude, and 5,653 ft elevation.

The topography within 2 miles of Hakha contains extreme variations in elevation, with a maximum elevation change of 3,724 feet and an average elevation above sea level of 5,559 feet. Within 10 miles also contains extreme variations in elevation (5,899 feet). Within 50 miles also contains extreme variations in elevation (8,714 feet).

The area within 2 miles of Hakha is covered by trees (37%), cropland (29%), and shrubs (25%), within 10 miles by trees (41%) and shrubs (38%), and within 50 miles by trees (52%) and shrubs (36%).