Winter Weather in Unaaha Indonesia

Daily high temperatures are around 84°F, rarely falling below 80°F or exceeding 87°F. The lowest daily average high temperature is 83°F on June 30.

Daily low temperatures are around 73°F, rarely falling below 70°F or exceeding 77°F. The lowest daily average low temperature is 72°F on August 11.

For reference, on October 31, the hottest day of the year, temperatures in Unaaha typically range from 76°F to 90°F, while on August 9, the coldest day of the year, they range from 72°F to 83°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.

Tola, Nicaragua (10,464 miles away) is the far-away foreign place with temperatures most similar to Unaaha (view comparison).

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The winter in Unaaha experiences rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 72% to 57%. The lowest chance of overcast or mostly cloudy conditions is 57% on August 21.

The clearest day of the winter is August 21, with clear, mostly clear, or partly cloudy conditions 43% of the time.

For reference, on January 10, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 94%, while on August 21, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 43%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Unaaha, the chance of a wet day over the course of the winter is very rapidly decreasing, starting the season at 49% and ending it at 20%.

For reference, the year's highest daily chance of a wet day is 53% on April 23, and its lowest chance is 17% on September 21.

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 Unaaha is very rapidly decreasing, starting the season at 7.9 inches, when it rarely exceeds 12.9 inches or falls below 3.3 inches, and ending the season at 2.4 inches, when it rarely exceeds 6.8 inches.

Over the course of the winter in Unaaha, the length of the day is essentially constant. The shortest day of the winter is June 19, with 11 hours, 54 minutes of daylight and the longest day is August 31, with 12 hours, 2 minutes of daylight.

The latest sunrise of the winter in Unaaha is 6:00 AM on July 20 and the earliest sunrise is 9 minutes earlier at 5:51 AM on August 31.

The earliest sunset is 5:47 PM on June 1 and the latest sunset is 10 minutes later at 5:56 PM on August 1.

Daylight saving time is not observed in Unaaha during 2024.

For reference, on December 21, the longest day of the year, the Sun rises at 5:39 AM and sets 12 hours, 21 minutes later, at 6:00 PM, while on June 20, the shortest day of the year, it rises at 5:56 AM and sets 11 hours, 54 minutes later, at 5:50 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 Unaaha is gradually decreasing during the winter, falling from 100% to 96% over the course of the season.

For reference, on January 5, the muggiest day of the year, there are muggy conditions 100% of the time, while on October 12, the least muggy day of the year, there are muggy conditions 92% 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 Unaaha is essentially constant during the winter, remaining within 0.2 miles per hour of 2.7 miles per hour throughout.

For reference, on August 2, the windiest day of the year, the daily average wind speed is 2.8 miles per hour, while on December 25, the calmest day of the year, the daily average wind speed is 1.9 miles per hour.

The highest daily average wind speed during the winter is 2.8 miles per hour on August 3.

The hourly average wind direction in Unaaha throughout the winter is predominantly from the east, with a peak proportion of 81% on August 31.

Unaaha 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 Unaaha is gradually decreasing during the winter, falling by 2°F, from 84°F to 82°F, over the course of the season.

The lowest average surface water temperature during the winter is 82°F on August 8.

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).

Temperatures in Unaaha are sufficiently warm year round that it is not entirely meaningful to discuss the growing season in these terms. We nevertheless include the chart below as an illustration of the distribution of temperatures experienced throughout the year.

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 Unaaha are very rapidly decreasing during the winter, decreasing by 8,178°F, from 9,835°F to 1,657°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 Unaaha is rapidly increasing during the winter, rising by 1.6 kWh, from 4.6 kWh to 6.2 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 4.5 kWh on June 10.

For the purposes of this report, the geographical coordinates of Unaaha are -3.854 deg latitude, 122.042 deg longitude, and 125 ft elevation.

The topography within 2 miles of Unaaha contains significant variations in elevation, with a maximum elevation change of 692 feet and an average elevation above sea level of 167 feet. Within 10 miles contains significant variations in elevation (2,871 feet). Within 50 miles contains large variations in elevation (8,048 feet).

The area within 2 miles of Unaaha is covered by cropland (43%), trees (37%), and grassland (11%), within 10 miles by trees (58%) and cropland (31%), and within 50 miles by trees (51%) and water (23%).