Winter Weather in Falkland Islands Falkland Islands

Daily high temperatures are around 41°F, rarely falling below 36°F or exceeding 46°F. The lowest daily average high temperature is 40°F on July 6.

Daily low temperatures are around 36°F, rarely falling below 32°F or exceeding 40°F. The lowest daily average low temperature is 36°F on July 18.

For reference, on January 17, the hottest day of the year, temperatures in Falkland Islands typically range from 47°F to 56°F, while on July 17, the coldest day of the year, they range from 36°F to 40°F.

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

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The winter in Falkland Islands experiences gradually decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 66% to 61%. The highest chance of overcast or mostly cloudy conditions is 68% on July 6.

The clearest day of the winter is August 29, with clear, mostly clear, or partly cloudy conditions 39% of the time.

For reference, on June 26, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 68%, while on February 12, 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 Falkland Islands, the chance of a wet day over the course of the winter is essentially constant, remaining around 24% throughout.

For reference, the year's highest daily chance of a wet day is 34% on March 20, and its lowest chance is 20% on October 7.

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 winter in Falkland Islands is essentially constant, remaining about 1.3 inches throughout, and rarely exceeding 2.4 inches or falling below 0.5 inches.

Over the course of the winter in Falkland Islands, 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, 41 minutes, implying an average daily increase of 1 minute, 46 seconds, and weekly increase of 12 minutes, 24 seconds.

The shortest day of the winter is June 20, with 7 hours, 47 minutes of daylight and the longest day is August 31, with 10 hours, 46 minutes of daylight.

The latest sunrise of the winter in Falkland Islands is 9:05 AM on June 25 and the earliest sunrise is 1 hour, 31 minutes earlier at 7:34 AM on August 31.

The earliest sunset is 4:51 PM on June 15 and the latest sunset is 1 hour, 29 minutes later at 6:20 PM on August 31.

Daylight saving time is not observed in Falkland Islands during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 4:34 AM and sets 16 hours, 41 minutes later, at 9:15 PM, while on June 20, the shortest day of the year, it rises at 9:04 AM and sets 7 hours, 47 minutes later, at 4:51 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 winter 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 Falkland Islands is essentially constant during the winter, 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 Falkland Islands is gradually increasing during the winter, increasing from 19.1 miles per hour to 20.0 miles per hour over the course of the season.

For reference, on August 26, the windiest day of the year, the daily average wind speed is 20.1 miles per hour, while on December 22, the calmest day of the year, the daily average wind speed is 17.8 miles per hour.

The highest daily average wind speed during the winter is 20.1 miles per hour on August 26.

The hourly average wind direction in Falkland Islands throughout the winter is predominantly from the west, with a peak proportion of 52% on August 13.

Falkland Islands 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 Falkland Islands is gradually decreasing during the winter, falling by 3°F, from 44°F to 41°F, over the course of the season.

The lowest average surface water temperature during the winter is 41°F on August 29.

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 Falkland Islands typically lasts for 9.7 months (294 days), from around August 20 to around June 11, rarely starting after September 24, or ending before May 13.

The smallest chance that a given day will be within the growing season in Falkland Islands during the winter is 15% on July 15.

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 Falkland Islands are decreasing during the winter, decreasing by 238°F, from 238°F to 0°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 Falkland Islands is increasing during the winter, rising by 1.3 kWh, from 0.7 kWh to 1.9 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 0.6 kWh on June 24.

For the purposes of this report, the geographical coordinates of Falkland Islands are -51.750 deg latitude, -59.167 deg longitude, and 0 ft elevation.

The topography within 2 miles of Falkland Islands is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (0 feet). Within 50 miles is also essentially flat (0 feet).

The area within 2 miles of Falkland Islands is covered by shrubs (43%), trees (27%), and grassland (26%), within 10 miles by water (56%) and shrubs (25%), and within 50 miles by water (66%) and shrubs (19%).