May Weather at Tribhuvan International Airport Nepal

Daily high temperatures are around 83°F, rarely falling below 77°F or exceeding 89°F.

Daily low temperatures increase by 6°F, from 59°F to 65°F, rarely falling below 55°F or exceeding 68°F.

For reference, on June 11, the hottest day of the year, temperatures at Tribhuvan International Airport typically range from 67°F to 84°F, while on January 7, the coldest day of the year, they range from 37°F to 64°F.

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.

Córdoba, Argentina (10,606 miles away) and Wondai, Australia (5,787 miles) are the far-away foreign places with temperatures most similar to Tribhuvan International Airport (view comparison).

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The month of May at Tribhuvan International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 12% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 10% on May 20.

The clearest day of the month is May 20, with clear, mostly clear, or partly cloudy conditions 90% of the time.

For reference, on August 4, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 84%, while on November 4, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 93%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Tribhuvan International Airport, the chance of a wet day over the course of May is very rapidly increasing, starting the month at 17% and ending it at 33%.

For reference, the year's highest daily chance of a wet day is 63% on July 17, and its lowest chance is 1% on November 19.

Rainfall

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 at Tribhuvan International Airport is rapidly increasing, starting the month at 1.2 inches, when it rarely exceeds 2.6 inches or falls below 0.1 inches, and ending the month at 2.8 inches, when it rarely exceeds 6.2 inches or falls below 0.7 inches.

Over the course of May at Tribhuvan International Airport, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 33 minutes, implying an average daily increase of 1 minute, 5 seconds, and weekly increase of 7 minutes, 38 seconds.

The shortest day of the month is May 1, with 13 hours, 14 minutes of daylight and the longest day is May 31, with 13 hours, 46 minutes of daylight.

The latest sunrise of the month at Tribhuvan International Airport is 5:24 AM on May 1 and the earliest sunrise is 16 minutes earlier at 5:08 AM on May 31.

The earliest sunset is 6:37 PM on May 1 and the latest sunset is 17 minutes later at 6:54 PM on May 31.

Daylight saving time is not observed at Tribhuvan International Airport during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:08 AM and sets 13 hours, 54 minutes later, at 7:02 PM, while on December 21, the shortest day of the year, it rises at 6:50 AM and sets 10 hours, 23 minutes later, at 5:13 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 May 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 at Tribhuvan International Airport is very rapidly increasing during May, rising from 4% to 32% over the course of the month.

For reference, on August 1, the muggiest day of the year, there are muggy conditions 97% 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 at Tribhuvan International Airport is essentially constant during May, remaining within 0.2 miles per hour of 5.8 miles per hour throughout.

For reference, on April 12, the windiest day of the year, the daily average wind speed is 6.2 miles per hour, while on November 30, the calmest day of the year, the daily average wind speed is 3.7 miles per hour.

The hourly average wind direction at Tribhuvan International Airport throughout May is predominantly from the south, with a peak proportion of 50% on May 31.

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).

While it does not do so every year, freezing temperatures are seen at Tribhuvan International Airport over some winters. The day least likely to be in the growing season is January 10, with a 74% chance.

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 at Tribhuvan International Airport are rapidly increasing during May, increasing by 669°F, from 1,216°F to 1,885°F, over the course of the month.

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 at Tribhuvan International Airport is essentially constant during May, remaining within 0.1 kWh of 7.5 kWh throughout.

The highest average daily incident shortwave solar energy during May is 7.6 kWh on May 22.

For the purposes of this report, the geographical coordinates of Tribhuvan International Airport are 27.697 deg latitude, 85.359 deg longitude, and 4,380 ft elevation.

The topography within 2 miles of Tribhuvan International Airport contains only modest variations in elevation, with a maximum elevation change of 282 feet and an average elevation above sea level of 4,330 feet. Within 10 miles contains only modest variations in elevation (5,961 feet). Within 50 miles also contains extreme variations in elevation (23,379 feet).

The area within 2 miles of Tribhuvan International Airport is covered by artificial surfaces (60%) and cropland (35%), within 10 miles by cropland (41%) and trees (38%), and within 50 miles by trees (50%) and cropland (29%).