Average Weather in June at Sisimiut Airport Greenland
Daily high temperatures increase by 7°F, from 44°F to 51°F, rarely falling below 35°F or exceeding 58°F.
Daily low temperatures increase by 6°F, from 33°F to 40°F, rarely falling below 27°F or exceeding 45°F.
For reference, on July 22, the hottest day of the year, temperatures at Sisimiut Airport typically range from 43°F to 54°F, while on February 26, the coldest day of the year, they range from 4°F to 14°F.
Average High and Low Temperature in June
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on June. 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.
Average Hourly Temperature in June
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The month of June at Sisimiut Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 60% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 59% on June 1.
The clearest day of the month is June 1, with clear, mostly clear, or partly cloudy conditions 41% of the time.
For reference, on January 16, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 85%, while on June 1, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 41%.
Cloud Cover Categories in June
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Sisimiut Airport, the chance of a wet day over the course of June is rapidly increasing, starting the month at 16% and ending it at 23%.
For reference, the year's highest daily chance of a wet day is 28% on August 15, and its lowest chance is 7% on February 16.
Over the course of June at Sisimiut Airport, the chance of a day with only rain increases from 13% to 22%, the chance of a day with mixed snow and rain remains an essentially constant 1% throughout, and the chance of a day with only snow remains an essentially constant 0% throughout.
Probability of Precipitation in June
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 June at Sisimiut Airport is gradually increasing, starting the month at 1.1 inches, when it rarely exceeds 2.6 inches or falls below 0.2 inches, and ending the month at 1.5 inches, when it rarely exceeds 3.1 inches or falls below 0.4 inches.
Average Monthly Rainfall in June
Due to its extreme latitude, Sisimiut Airport experiences polar day (also known as the midnight Sun) during the summer. 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.
In the summer at Sisimiut Airport during 2021, the Sun is continuously above the horizon for 1.3 months, rising at 1:35 AM on June 2, and not setting again until 1:38 AM on July 10. As such, polar day begins in June and lasts beyond the end of the month.
The shortest day of the month is June 1, with 23 hours, 32 minutes of daylight.
Hours of Daylight and Twilight in June
The latest sunrise of the month at Sisimiut Airport is 1:57 AM on June 1 and the earliest sunrise is 22 minutes earlier at 1:35 AM on June 2.
Daylight saving time is observed at Sisimiut Airport during 2021, but it neither starts nor ends during June, so the entire month is in daylight saving time.
Sunrise & Sunset with Twilight in June
The figure below presents a compact representation of key lunar data for June 2021. 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.
Moon Rise, Set & Phases in June
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 Sisimiut Airport is essentially constant during June, remaining around 0% throughout.
Humidity Comfort Levels in June
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
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 Sisimiut Airport is essentially constant during June, remaining within 0.2 miles per hour of 7.8 miles per hour throughout.
For reference, on December 3, the windiest day of the year, the daily average wind speed is 11.2 miles per hour, while on July 14, the calmest day of the year, the daily average wind speed is 7.2 miles per hour.
Average Wind Speed in June
The hourly average wind direction at Sisimiut Airport throughout June is predominantly from the north, with a peak proportion of 43% on June 2.
Wind Direction in June
Sisimiut Airport 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 at Sisimiut Airport is gradually increasing during June, rising by 3°F, from 35°F to 38°F, over the course of the month.
Average Water Temperature in June
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 at Sisimiut Airport typically lasts for 3.5 months (106 days), from around June 12 to around September 26, rarely starting before May 21 or after July 5, and rarely ending before September 9 or after October 12.
During June at Sisimiut Airport, the chance that a given day is within the growing season is very rapidly increasing rising from 27% to 84% over the course of the month.
Time Spent in Various Temperature Bands and the Growing Season in June
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 Sisimiut Airport are essentially constant during June, remaining within 6°F of 10°F throughout.
Growing Degree Days in June
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 Sisimiut Airport is essentially constant during June, remaining within 0.1 kWh of 5.7 kWh throughout.
The highest average daily incident shortwave solar energy during June is 5.8 kWh on June 19.
Average Daily Incident Shortwave Solar Energy in June
For the purposes of this report, the geographical coordinates of Sisimiut Airport are 66.951 deg latitude, -53.723 deg longitude, and 128 ft elevation.
The topography within 2 miles of Sisimiut Airport contains very significant variations in elevation, with a maximum elevation change of 1,647 feet and an average elevation above sea level of 271 feet. Within 10 miles contains very significant variations in elevation (2,398 feet). Within 50 miles contains large variations in elevation (5,971 feet).
The area within 2 miles of Sisimiut Airport is covered by snow and glaciers (32%), sparse vegetation (30%), grassland (17%), and water (13%), within 10 miles by water (53%) and snow and glaciers (19%), and within 50 miles by water (53%) and sparse vegetation (13%).
This report illustrates the typical weather at Sisimiut Airport, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
Sisimiut Airport has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.
In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.
The stations on which we may fall back are Sisimiut /Holsteins and Sdr Stroemfjord.
All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.
Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.
Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .
Time zones for airports and weather stations are provided by AskGeo.com .
Maps are © Esri, with data from National Geographic, Esri, DeLorme, NAVTEQ, UNEP-WCMC, USGS, NASA, ESA, METI, NRCAN, GEBCO, NOAA, and iPC.
The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.
We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.
We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.