Spring Weather in Kathmandu Nepal

Daily high temperatures increase by 12°F, from 72°F to 84°F, rarely falling below 66°F or exceeding 89°F.

Daily low temperatures increase by 21°F, from 45°F to 65°F, rarely falling below 40°F or exceeding 68°F.

For reference, on June 11, the hottest day of the year, temperatures in Kathmandu 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 spring 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.

Córdoba, Argentina (10,604 miles away) and Wondai, Australia (5,790 miles) are the far-away foreign places with temperatures most similar to Kathmandu (view comparison).

© OpenStreetMap contributors

Compare Kathmandu to another city:

CompareMap

The spring in Kathmandu experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 14% throughout the season. The lowest chance of overcast or mostly cloudy conditions is 10% on May 20.

The clearest day of the spring 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. In Kathmandu, the chance of a wet day over the course of the spring is very rapidly increasing, starting the season at 6% 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 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 spring in Kathmandu is very rapidly increasing, starting the season at 0.4 inches, when it rarely exceeds 0.9 inches or falls below -0.0 inches, and ending the season at 2.8 inches, when it rarely exceeds 6.2 inches or falls below 0.7 inches.

Over the course of the spring in Kathmandu, the length of the day is very rapidly increasing. From the start to the end of the season, the length of the day increases by 2 hours, 10 minutes, implying an average daily increase of 1 minute, 26 seconds, and weekly increase of 10 minutes, 0 seconds.

The shortest day of the spring is March 1, with 11 hours, 36 minutes of daylight and the longest day is May 31, with 13 hours, 46 minutes of daylight.

The latest sunrise of the spring in Kathmandu is 6:28 AM on March 1 and the earliest sunrise is 1 hour, 20 minutes earlier at 5:08 AM on May 31.

The earliest sunset is 6:04 PM on March 1 and the latest sunset is 50 minutes later at 6:54 PM on May 31.

Daylight saving time is not observed in Kathmandu 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 the spring 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 Kathmandu is very rapidly increasing during the spring, rising from 0% to 32% over the course of the season.

For reference, on August 1, the muggiest day of the year, there are muggy conditions 97% of the time, while on November 26, 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 Kathmandu is essentially constant during the spring, remaining within 0.4 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 December 1, the calmest day of the year, the daily average wind speed is 3.7 miles per hour.

The highest daily average wind speed during the spring is 6.2 miles per hour on April 13.

The wind direction in Kathmandu during the spring is predominantly out of the north from March 1 to March 29, the west from March 29 to April 20, and the south from April 20 to 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 in Kathmandu 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 in Kathmandu are very rapidly increasing during the spring, increasing by 1,586°F, from 308°F to 1,894°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 Kathmandu is increasing during the spring, rising by 1.4 kWh, from 6.0 kWh to 7.4 kWh, over the course of the season.

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

For the purposes of this report, the geographical coordinates of Kathmandu are 27.702 deg latitude, 85.321 deg longitude, and 4,252 ft elevation.

The topography within 2 miles of Kathmandu contains only modest variations in elevation, with a maximum elevation change of 230 feet and an average elevation above sea level of 4,291 feet. Within 10 miles contains only modest variations in elevation (6,155 feet). Within 50 miles also contains extreme variations in elevation (24,052 feet).

The area within 2 miles of Kathmandu is covered by artificial surfaces (57%) and cropland (41%), within 10 miles by cropland (42%) and trees (36%), and within 50 miles by trees (50%) and cropland (29%).