August Weather in Aasiaat Greenland

Daily high temperatures decrease by 4°F, from 48°F to 43°F, rarely falling below 39°F or exceeding 53°F.

Daily low temperatures decrease by 3°F, from 41°F to 38°F, rarely falling below 34°F or exceeding 46°F.

For reference, on July 21, the hottest day of the year, temperatures in Aasiaat typically range from 41°F to 48°F, while on February 29, the coldest day of the year, they range from -1°F to 8°F.

The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. 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.

© OpenStreetMap contributors

Compare Aasiaat to another city:

CompareMap

The month of August in Aasiaat experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 61% throughout the month. The highest chance of overcast or mostly cloudy conditions is 63% on August 14.

The clearest day of the month is August 26, with clear, mostly clear, or partly cloudy conditions 40% of the time.

For reference, on January 1, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 82%, while on May 30, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 47%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Aasiaat, the chance of a wet day over the course of August is gradually decreasing, starting the month at 20% and ending it at 17%.

For reference, the year's highest daily chance of a wet day is 22% on August 9, and its lowest chance is 3% on January 5.

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 August in Aasiaat is essentially constant, remaining about 1.5 inches throughout, and rarely exceeding 3.3 inches or falling below 0.3 inches.

The highest average 31-day accumulation is 1.6 inches on August 14.

Due to its extreme latitude, Aasiaat experiences polar day (also known as the midnight Sun) during the summer and polar night during the winter. These are periods of time in which the sun is continuously above or below the horizon for more than one day. The precise start and end dates of polar day and night vary from year to year and depend on the precise location and elevation of the observer, and the local topography.

Neither polar day nor polar night occur during the month of August.

Over the course of August in Aasiaat, the length of the day is very rapidly decreasing. From the start to the end of the month, the length of the day decreases by 4 hours, 43 minutes, implying an average daily decrease of 9 minutes, 26 seconds, and weekly decrease of 1 hour, 6 minutes, 0 seconds.

The shortest day of the month is August 31, with 15 hours, 16 minutes of daylight and the longest day is August 1, with 19 hours, 59 minutes of daylight.

The earliest sunrise of the month in Aasiaat is 4:35 AM on August 1 and the latest sunrise is 2 hours, 16 minutes later at 6:52 AM on August 31.

The latest sunset is 12:34 AM on August 1 and the earliest sunset is 2 hours, 27 minutes earlier at 10:08 PM on August 31.

Daylight saving time is observed in Aasiaat during 2024, but it neither starts nor ends during August, so the entire month is in standard time.

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 August 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 Aasiaat is essentially constant during August, remaining around 0% throughout.

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 Aasiaat is increasing during August, increasing from 6.2 miles per hour to 7.5 miles per hour over the course of the month.

For reference, on December 1, the windiest day of the year, the daily average wind speed is 11.8 miles per hour, while on July 14, the calmest day of the year, the daily average wind speed is 6.0 miles per hour.

The hourly average wind direction in Aasiaat throughout August is predominantly from the north, with a peak proportion of 31% on August 31.

Aasiaat 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 Aasiaat is essentially constant during August, remaining around 40°F throughout.

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 Aasiaat typically lasts for 3.2 months (99 days), from around June 13 to around September 20, rarely starting before May 25 or after July 3, and rarely ending before September 2 or after October 7.

The month of August in Aasiaat is very likely fully within the growing season, with the chance that a given day is in the growing season reaching a high of 99% on August 9.

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 Aasiaat are essentially constant during August, remaining within 1°F of 12°F throughout.

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 Aasiaat is rapidly decreasing during August, falling by 1.6 kWh, from 4.5 kWh to 2.9 kWh, over the course of the month.

For the purposes of this report, the geographical coordinates of Aasiaat are 68.710 deg latitude, -52.870 deg longitude, and 3 ft elevation.

The topography within 2 miles of Aasiaat contains only modest variations in elevation, with a maximum elevation change of 125 feet and an average elevation above sea level of 2 foot. Within 10 miles contains only modest variations in elevation (804 feet). Within 50 miles contains significant variations in elevation (3,284 feet).

The area within 2 miles of Aasiaat is covered by sparse vegetation (53%), water (34%), and snow and glaciers (11%), within 10 miles by water (61%) and sparse vegetation (20%), and within 50 miles by water (68%).