Winter Weather in Trà My Vietnam

Daily high temperatures increase by 6°F, from 79°F to 85°F, rarely falling below 69°F or exceeding 93°F. The lowest daily average high temperature is 77°F on December 25.

Daily low temperatures are around 66°F, rarely falling below 58°F or exceeding 72°F. The lowest daily average low temperature is 64°F on January 4.

For reference, on June 11, the hottest day of the year, temperatures in Trà My typically range from 76°F to 95°F, while on January 4, the coldest day of the year, they range from 64°F to 78°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.

Cosamaloapan de Carpio, Mexico (9,602 miles away) and Porto Murtinho, Brazil (11,439 miles) are the far-away foreign places with temperatures most similar to Trà My (view comparison).

© OpenStreetMap contributors

Compare Trà My to another city:

CompareMap

The winter in Trà My experiences rapidly decreasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 62% to 47%. The lowest chance of overcast or mostly cloudy conditions is 47% on February 27.

The clearest day of the winter is February 27, with clear, mostly clear, or partly cloudy conditions 53% of the time.

For reference, on June 7, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 97%, while on February 27, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 53%.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Trà My, the chance of a wet day over the course of the winter is very rapidly decreasing, starting the season at 37% and ending it at 4%.

For reference, the year's highest daily chance of a wet day is 61% on October 13, and its lowest chance is 4% on February 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 Trà My is very rapidly decreasing, starting the season at 7.5 inches, when it rarely exceeds 20.1 inches or falls below 1.0 inches, and ending the season at 0.3 inches, when it rarely exceeds 0.9 inches or falls below -0.0 inches.

The lowest average 31-day accumulation is 0.3 inches on February 26.

Over the course of the winter in Trà My, the length of the day is increasing. From the start to the end of the season, the length of the day increases by 32 minutes, implying an average daily increase of 22 seconds, and weekly increase of 2 minutes, 33 seconds.

The shortest day of the winter is December 22, with 11 hours, 13 minutes of daylight and the longest day is February 28, with 11 hours, 49 minutes of daylight.

The earliest sunrise of the winter in Trà My is 5:57 AM on December 1 and the latest sunrise is 20 minutes later at 6:17 AM on January 22.

The earliest sunset is 5:14 PM on December 1 and the latest sunset is 40 minutes later at 5:54 PM on February 28.

Daylight saving time is not observed in Trà My during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:17 AM and sets 13 hours, 2 minutes later, at 6:19 PM, while on December 21, the shortest day of the year, it rises at 6:08 AM and sets 11 hours, 13 minutes later, at 5:21 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 Trà My is decreasing during the winter, falling from 64% to 55% over the course of the season.

The lowest chance of a muggy day during the winter is 30% on January 27.

For reference, on September 17, the muggiest day of the year, there are muggy conditions 99% of the time, while on January 26, the least muggy day of the year, there are muggy conditions 30% 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 Trà My is decreasing during the winter, decreasing from 6.5 miles per hour to 4.7 miles per hour over the course of the season.

For reference, on December 1, the windiest day of the year, the daily average wind speed is 6.5 miles per hour, while on May 31, the calmest day of the year, the daily average wind speed is 3.4 miles per hour.

The highest daily average wind speed during the winter is 6.5 miles per hour on December 2.

The wind direction in Trà My during the winter is predominantly out of the north from December 1 to December 21 and the east from December 21 to February 28.

Trà My 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 Trà My is decreasing during the winter, falling by 4°F, from 78°F to 74°F, over the course of the season.

The lowest average surface water temperature during the winter is 74°F on February 7.

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 Trà My 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 Trà My are very rapidly decreasing during the winter, decreasing by 8,048°F, from 9,274°F to 1,226°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 Trà My is rapidly increasing during the winter, rising by 1.5 kWh, from 4.3 kWh to 5.9 kWh, over the course of the season.

The lowest average daily incident shortwave solar energy during the winter is 4.2 kWh on December 16.

For the purposes of this report, the geographical coordinates of Trà My are 15.340 deg latitude, 108.221 deg longitude, and 361 ft elevation.

The topography within 2 miles of Trà My contains very significant variations in elevation, with a maximum elevation change of 1,375 feet and an average elevation above sea level of 526 feet. Within 10 miles contains very significant variations in elevation (4,249 feet). Within 50 miles also contains extreme variations in elevation (8,520 feet).

The area within 2 miles of Trà My is covered by trees (41%), shrubs (30%), and cropland (27%), within 10 miles by trees (57%) and shrubs (31%), and within 50 miles by trees (48%) and shrubs (20%).