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Average Weather in Quảng Ngãi Vietnam

In Quảng Ngãi, the wet season is overcast, the dry season is mostly cloudy, and it is hot and oppressive year round. Over the course of the year, the temperature typically varies from 67°F to 95°F and is rarely below 63°F or above 100°F.

Temperature

The hot season lasts for 4.1 months, from May 1 to September 4, with an average daily high temperature above 91°F. The hottest day of the year is July 5, with an average high of 95°F and low of 78°F.

The cool season lasts for 2.8 months, from November 24 to February 17, with an average daily high temperature below 81°F. The coldest day of the year is January 15, with an average low of 67°F and high of 78°F.

Average High and Low Temperature

The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature

Average Hourly Temperature in Quảng NgãiJanFebMarAprMayJunJulAugSepOctNovDec12 AM4 AM8 AM12 PM4 PM8 PM12 AMhotwarmcomfortable
The average hourly temperature, color coded into bands: 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 shaded overlays indicate night and civil twilight.

Clouds

In Quảng Ngãi, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Quảng Ngãi begins around November 2 and lasts for 5.6 months, ending around April 22. On February 28, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 54% of the time, and overcast or mostly cloudy 46% of the time.

The cloudier part of the year begins around April 22 and lasts for 6.4 months, ending around November 2. On June 7, the cloudiest day of the year, the sky is overcast or mostly cloudy 96% of the time, and clear, mostly clear, or partly cloudy 4% of the time.

Cloud Cover Categories

Cloud Cover Categories in Quảng NgãiclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Feb 2854%Feb 2854%Jun 74%Jun 74%Nov 228%Nov 228%Apr 2229%Apr 2229%mostly cloudyovercastclearmostly clearpartly cloudy
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds: clear < 20% < mostly clear < 40% < partly cloudy < 60% < mostly cloudy < 80% < overcast.

Precipitation

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Quảng Ngãi varies very significantly throughout the year.

The wetter season lasts 3.5 months, from August 24 to December 9, with a greater than 33% chance of a given day being a wet day. The chance of a wet day peaks at 63% on October 14.

The drier season lasts 8.5 months, from December 9 to August 24. The smallest chance of a wet day is 3% on February 21.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 63% on October 14.

Daily Chance of Precipitation

Daily Chance of Precipitation in Quảng NgãiwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Oct 1463%Oct 1463%Feb 213%Feb 213%Jan 118%Jan 118%Aug 2433%Aug 2433%Dec 933%Dec 933%rain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).

Rainfall

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Quảng Ngãi experiences extreme seasonal variation in monthly rainfall.

The rainy period of the year lasts for 10 months, from March 23 to February 4, with a sliding 31-day rainfall of at least 0.5 inches. The most rain falls during the 31 days centered around October 18, with an average total accumulation of 16.8 inches.

The rainless period of the year lasts for 1.6 months, from February 4 to March 23. The least rain falls around February 24, with an average total accumulation of 0.2 inches.

Average Monthly Rainfall

Average Monthly Rainfall in Quảng NgãirainrainJanFebMarAprMayJunJulAugSepOctNovDec0 in5 in10 in15 in20 in25 in30 in35 inOct 1816.8 inOct 1816.8 inFeb 240.2 inFeb 240.2 inJun 92.3 inJun 92.3 in
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average liquid-equivalent snowfall.

Sun

The length of the day in Quảng Ngãi varies over the course of the year. In 2017, the shortest day is December 21, with 11 hours, 14 minutes of daylight; the longest day is June 21, with 13 hours, 2 minutes of daylight.

Hours of Daylight and Twilight

Hours of Daylight and Twilight in Quảng NgãiJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2013 hr, 2 minJun 2113 hr, 2 minJun 2112 hr, 7 minSep 2312 hr, 7 minSep 2311 hr, 14 minDec 2111 hr, 14 minDec 21nightnightday
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.

The earliest sunrise is at 5:13 AM on June 3, and the latest sunrise is 1 hour, 1 minute later at 6:14 AM on January 23. The earliest sunset is at 5:11 PM on November 22, and the latest sunset is 1 hour, 7 minutes later at 6:19 PM on July 8.

Daylight saving time (DST) is not observed in Quảng Ngãi during 2017.

Sunrise & Sunset with Twilight

Sunrise & Sunset with Twilight in Quảng NgãiJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMJun 35:13 AMJun 35:13 AM6:19 PMJul 86:19 PMJul 8Nov 225:11 PMNov 225:11 PM6:14 AMJan 236:14 AMJan 23daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of the year 2017. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

Humidity

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.

Quảng Ngãi experiences significant seasonal variation in the perceived humidity.

The muggier period of the year lasts for 11 months, from February 11 to December 29, during which time the comfort level is muggy, oppressive, or miserable at least 67% of the time. The muggiest day of the year is September 16, with muggy conditions 100% of the time.

The least muggy day of the year is January 25, with muggy conditions 56% of the time.

Humidity Comfort Levels

Humidity Comfort Levels in Quảng NgãimuggyJanFebMarAprMayJunJulAugSepOctNovDec0%10%20%30%40%50%60%70%80%90%100%Jan 2556%Jan 2556%100%Sep 16100%Sep 16Dec 2967%Dec 2967%oppressiveoppressivehumidhumidmuggymuggymiserablemiserablecomfortablecomfortable
The percentage of time spent at various humidity comfort levels, categorized by dew point: dry < 55°F < comfortable < 60°F < humid < 65°F < muggy < 70°F < oppressive < 75°F < miserable.

Wind

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 Quảng Ngãi experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 4.0 months, from October 11 to February 12, with average wind speeds of more than 7.0 miles per hour. The windiest day of the year is December 6, with an average hourly wind speed of 9.1 miles per hour.

The calmer time of year lasts for 8.0 months, from February 12 to October 11. The calmest day of the year is August 18, with an average hourly wind speed of 4.8 miles per hour.

Average Wind Speed

The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The predominant average hourly wind direction in Quảng Ngãi varies throughout the year.

The wind is most often from the east for 2.0 months, from February 8 to April 8 and for 2.1 weeks, from September 5 to September 20, with a peak percentage of 44% on March 23. The wind is most often from the south for 4.9 months, from April 8 to September 5, with a peak percentage of 49% on June 2. The wind is most often from the north for 4.6 months, from September 20 to February 8, with a peak percentage of 61% on January 1.

Wind Direction

Wind Direction in Quảng NgãiNESENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%eastwestnorthsouth
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions (north, east, south, and west), excluding hours in which the mean wind speed is less than 1 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Water Temperature

Quảng Ngãi 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 water temperature experiences some seasonal variation over the course of the year.

The time of year with warmer water lasts for 4.4 months, from May 26 to October 6, with an average temperature above 83°F. The day of the year with the warmest water is August 23, with an average temperature of 85°F.

The time of year with cooler water lasts for 3.3 months, from December 20 to March 30, with an average temperature below 77°F. The day of the year with the coolest water is February 1, with an average temperature of 75°F.

Average Water Temperature

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

Solar Energy

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 experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 2.3 months, from February 22 to May 1, with an average daily incident shortwave energy per square meter above 5.8 kWh. The brightest day of the year is March 27, with an average of 6.3 kWh.

The darker period of the year lasts for 4.0 months, from May 27 to September 27, with an average daily incident shortwave energy per square meter below 4.3 kWh. The darkest day of the year is August 28, with an average of 3.9 kWh.

Average Daily Incident Shortwave Solar Energy

Average Daily Incident Shortwave Solar Energy in Quảng NgãibrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh1 kWh2 kWh3 kWh4 kWh5 kWh6 kWh7 kWh8 kWhMar 276.3 kWhMar 276.3 kWhAug 283.9 kWhAug 283.9 kWhMay 15.8 kWhMay 15.8 kWhMay 274.3 kWhMay 274.3 kWh
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.

Topography

For the purposes of this report, the geographical coordinates of Quảng Ngãi are 15.120 deg latitude, 108.792 deg longitude, and 30 ft elevation.

The topography within 2 miles of Quảng Ngãi contains only modest variations in elevation, with a maximum elevation change of 148 feet and an average elevation above sea level of 31 feet. Within 10 miles contains only modest variations in elevation (3,031 feet). Within 50 miles contains large variations in elevation (6,375 feet).

The area within 2 miles of Quảng Ngãi is covered by cropland (58%) and water (21%), within 10 miles by cropland (48%) and trees (18%), and within 50 miles by water (52%) and trees (25%).

Data Sources

This report illustrates the typical weather in Quảng Ngãi, 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

There is only a single weather station, Da Nang International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Quảng Ngãi.

At a distance of 121 kilometers from Quảng Ngãi, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

The station records are corrected for the elevation difference between the station and Quảng Ngãi according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Tables of the Sun, Moon and Planets , 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 aiports 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.

Disclaimer

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.