Summer Weather in Musan-ŭp North Korea

Daily high temperatures are around 77°F, rarely falling below 62°F or exceeding 88°F. The highest daily average high temperature is 81°F on July 31.

Daily low temperatures increase by 5°F, from 50°F to 55°F, rarely falling below 44°F or exceeding 68°F. The highest daily average low temperature is 62°F on August 1.

For reference, on July 31, the hottest day of the year, temperatures in Musan-ŭp typically range from 62°F to 81°F, while on January 18, the coldest day of the year, they range from -1°F to 17°F.

The figure below shows you a compact characterization of the hourly average summer 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.

Park Rapids, United States (5,714 miles away) is the far-away foreign place with temperatures most similar to Musan-ŭp (view comparison).

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The summer in Musan-ŭp experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 48% to 42%. The highest chance of overcast or mostly cloudy conditions is 52% on July 26.

The clearest day of the summer is August 31, with clear, mostly clear, or partly cloudy conditions 58% of the time.

For reference, on July 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 52%, while on October 18, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 71%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Musan-ŭp, the chance of a wet day over the course of the summer is gradually decreasing, starting the season at 34% and ending it at 32%.

For reference, the year's highest daily chance of a wet day is 48% on July 16, and its lowest chance is 1% on January 27.

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 summer in Musan-ŭp is increasing, starting the season at 2.8 inches, when it rarely exceeds 4.6 inches or falls below 1.1 inches, and ending the season at 3.7 inches, when it rarely exceeds 6.3 inches or falls below 1.3 inches.

The highest average 31-day accumulation is 5.0 inches on July 25.

Over the course of the summer in Musan-ŭp, 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, 52 minutes, implying an average daily decrease of 1 minute, 14 seconds, and weekly decrease of 8 minutes, 39 seconds.

The shortest day of the summer is August 31, with 13 hours, 11 minutes of daylight and the longest day is June 21, with 15 hours, 16 minutes of daylight.

The earliest sunrise of the summer in Musan-ŭp is 4:46 AM on June 15 and the latest sunrise is 1 hour, 1 minute later at 5:47 AM on August 31.

The latest sunset is 8:03 PM on June 27 and the earliest sunset is 1 hour, 5 minutes earlier at 6:58 PM on August 31.

Daylight saving time is not observed in Musan-ŭp during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 4:46 AM and sets 15 hours, 16 minutes later, at 8:02 PM, while on December 21, the shortest day of the year, it rises at 7:48 AM and sets 9 hours, 5 minutes later, at 4:54 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 summer 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 Musan-ŭp is gradually increasing during the summer, rising from 0% to 3% over the course of the season.

The highest chance of a muggy day during the summer is 26% on August 1.

For reference, on July 31, the muggiest day of the year, there are muggy conditions 26% 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 Musan-ŭp is decreasing during the summer, decreasing from 5.6 miles per hour to 4.6 miles per hour over the course of the season.

For reference, on January 18, the windiest day of the year, the daily average wind speed is 9.7 miles per hour, while on August 8, the calmest day of the year, the daily average wind speed is 4.2 miles per hour.

The lowest daily average wind speed during the summer is 4.2 miles per hour on August 11.

The hourly average wind direction in Musan-ŭp throughout the summer is predominantly from the west, with a peak proportion of 49% on June 1.

Musan-ŭp is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average surface water temperature in Musan-ŭp is very rapidly increasing during the summer, rising by 17°F, from 53°F to 70°F, over the course of the season.

The highest average surface water temperature during the summer is 71°F on August 17.

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).

The growing season in Musan-ŭp typically lasts for 5.1 months (157 days), from around May 1 to around October 5, rarely starting before April 16 or after May 15, and rarely ending before September 19 or after October 21.

The summer in Musan-ŭp is reliably fully within the growing season.

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 Musan-ŭp are very rapidly increasing during the summer, increasing by 1,551°F, from 310°F to 1,861°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 Musan-ŭp is decreasing during the summer, falling by 1.3 kWh, from 6.4 kWh to 5.1 kWh, over the course of the season.

The highest average daily incident shortwave solar energy during the summer is 6.4 kWh on June 2.

For the purposes of this report, the geographical coordinates of Musan-ŭp are 42.226 deg latitude, 129.208 deg longitude, and 1,568 ft elevation.

The topography within 2 miles of Musan-ŭp contains very significant variations in elevation, with a maximum elevation change of 1,713 feet and an average elevation above sea level of 1,860 feet. Within 10 miles contains very significant variations in elevation (4,045 feet). Within 50 miles also contains extreme variations in elevation (8,320 feet).

The area within 2 miles of Musan-ŭp is covered by sparse vegetation (54%), cropland (22%), and trees (21%), within 10 miles by trees (61%) and sparse vegetation (16%), and within 50 miles by trees (67%) and cropland (11%).