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January Weather at Udon Thani International Airport Thailand

Daily high temperatures increase by 3°F, from 83°F to 86°F, rarely falling below 76°F or exceeding 93°F.

Daily low temperatures increase by 3°F, from 61°F to 64°F, rarely falling below 54°F or exceeding 70°F. The lowest daily average low temperature is 61°F on January 2.

For reference, on April 12, the hottest day of the year, temperatures at Udon Thani International Airport typically range from 77°F to 96°F, while on January 2, the coldest day of the year, they range from 61°F to 84°F.

Average High and Low Temperature in January at Udon Thani International Airport

Average High and Low Temperature in January at Udon Thani International AirportJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313155°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°F90°F90°F95°F95°F100°F100°FDecFebJan 183°FJan 183°F61°F61°FJan 3186°FJan 3186°F64°F64°FJan 1184°FJan 1184°F62°F62°FJan 2185°FJan 2185°F63°F63°F
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 hourly average temperatures for the quarter of the year centered on January. 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 January at Udon Thani International Airport

Average Hourly Temperature in January at Udon Thani International AirportJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMDecFebcoolcomfortablecomfortablewarmhotwarm
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 average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Ayotzintepec, Mexico (9,705 miles away); Cuiabá, Brazil (11,045 miles); and Chikwawa, Malawi (5,178 miles) are the far-away foreign places with temperatures most similar to Udon Thani International Airport (view comparison).

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The month of January at Udon Thani International Airport experiences essentially constant cloud cover, with the percentage of time that the sky is overcast or mostly cloudy remaining about 34% throughout the month. The lowest chance of overcast or mostly cloudy conditions is 33% on January 31.

The clearest day of the month is January 31, with clear, mostly clear, or partly cloudy conditions 67% of the time.

For reference, on June 12, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 93%, while on January 31, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 67%.

Cloud Cover Categories in January at Udon Thani International Airport

Cloud Cover Categories in January at Udon Thani International AirportJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%DecFebJun 127%Jun 127%Jan 166%Jan 166%Jan 3167%Jan 3167%Jan 1166%Jan 1166%Jan 2165%Jan 2165%clearmostly clearpartly cloudymostly cloudyovercast
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. At Udon Thani International Airport, the chance of a wet day over the course of January is gradually increasing, starting the month at 2% and ending it at 5%.

For reference, the year's highest daily chance of a wet day is 68% on August 29, and its lowest chance is 1% on December 19.

Probability of Precipitation in January at Udon Thani International Airport

Probability of Precipitation in January at Udon Thani International AirportJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%1%1%2%2%3%3%4%4%5%5%6%6%7%7%8%8%9%9%10%10%11%11%DecFebJan 12%Jan 12%Jan 315%Jan 315%Jan 113%Jan 113%Jan 213%Jan 213%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 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 January at Udon Thani International Airport is essentially constant, remaining about 0.2 inches throughout, and rarely exceeding 1.0 inches or falling below -0.0 inches.

Average Monthly Rainfall in January at Udon Thani International Airport

Average Monthly Rainfall in January at Udon Thani International AirportJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310.0 in0.0 in0.2 in0.2 in0.4 in0.4 in0.6 in0.6 in0.8 in0.8 in1.0 in1.0 in1.2 in1.2 in1.4 in1.4 in1.6 in1.6 inDecFebJan 10.1 inJan 10.1 inJan 310.3 inJan 310.3 inJan 110.2 inJan 110.2 inJan 210.2 inJan 210.2 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 snowfall.

Over the course of January at Udon Thani International Airport, the length of the day is gradually increasing. From the start to the end of the month, the length of the day increases by 15 minutes, implying an average daily increase of 31 seconds, and weekly increase of 3 minutes, 36 seconds.

The shortest day of the month is January 1, with 11 hours, 7 minutes of daylight and the longest day is January 31, with 11 hours, 22 minutes of daylight.

Hours of Daylight and Twilight in January at Udon Thani International Airport

Hours of Daylight and Twilight in January at Udon Thani International AirportJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrDecFebnightnightdaydayJan 111 hr, 7 minJan 111 hr, 7 minJan 3111 hr, 22 minJan 3111 hr, 22 minJan 1611 hr, 12 minJan 1611 hr, 12 min
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 of the month at Udon Thani International Airport is 6:38 AM on January 1 and the latest sunrise is 4 minutes later at 6:42 AM on January 20.

The earliest sunset is 5:45 PM on January 1 and the latest sunset is 18 minutes later at 6:03 PM on January 31.

Daylight saving time is not observed at Udon Thani International Airport during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 5:35 AM and sets 13 hours, 10 minutes later, at 6:45 PM, while on December 21, the shortest day of the year, it rises at 6:34 AM and sets 11 hours, 5 minutes later, at 5:39 PM.

Sunrise & Sunset with Twilight in January at Udon Thani International Airport

Sunrise & Sunset with Twilight in January at Udon Thani International AirportJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMDecFeb6:38 AM6:38 AMJan 15:45 PMJan 15:45 PM6:41 AM6:41 AMJan 316:03 PMJan 316:03 PM6:42 AM6:42 AMJan 205:57 PMJan 205:57 PMSolarMidnightSolarMidnightSolarNoonSunriseSunset
The solar day over the course of January. 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.

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.

Solar Elevation and Azimuth in January at Udon Thani International Airport

Solar Elevation and Azimuth in January at Udon Thani International AirportJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMDecFeb001010202020303040405050500001010202030303040405060
northeastsouthwest
Solar elevation and azimuth over the course of January 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for January 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.

Moon Rise, Set & Phases in January at Udon Thani International Airport

Moon Rise, Set & Phases in January at Udon Thani International AirportJan112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMDecFebDec 136:33 AMDec 136:33 AMDec 277:34 AMDec 277:34 AMJan 116:58 PMJan 116:58 PMJan 2612:55 AMJan 2612:55 AMFeb 106:00 AMFeb 106:00 AMFeb 247:31 PMFeb 247:31 PM6:38 AM6:38 AM5:50 PM5:50 PM4:59 PM4:59 PM6:47 AM6:47 AM6:25 AM6:25 AM5:40 PM5:40 PM5:38 PM5:38 PM7:08 AM7:08 AM6:54 AM6:54 AM6:37 PM6:37 PM6:08 PM6:08 PM6:58 AM6:58 AM
The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.
Jan 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
79%-10:25 AMWNW10:18 PME3:59 AMS251,387 mi
2
71%-10:58 AMW11:04 PME4:39 AMS251,576 mi
3
62%-11:29 AMW11:51 PME5:18 AMS250,970 mi
4
50%-12:01 PMW-5:56 AMS249,534 mi
5
42%12:38 AME12:35 PMW-6:36 AMS247,299 mi
6
32%1:28 AMESE1:11 PMWSW-7:19 AMS244,365 mi
7
23%2:21 AMESE1:52 PMWSW-8:06 AMS240,909 mi
8
14%3:18 AMESE2:39 PMWSW-8:58 AMS237,178 mi
9
7%4:19 AMESE3:33 PMWSW-9:55 AMS233,479 mi
10
2%5:22 AMESE4:34 PMWSW-10:58 AMS230,147 mi
11
0%6:25 AMESE5:40 PMWSW-12:03 PMS227,501 mi
12
1%7:25 AMESE6:47 PMWSW-1:07 PMS225,784 mi
13
5%8:19 AMESE7:53 PMWSW-2:07 PMS225,112 mi
14
11%9:07 AMESE8:56 PMWSW-3:02 PMS225,465 mi
15
20%9:50 AME9:56 PMW-3:53 PMS226,707 mi
16
30%10:30 AME10:54 PMW-4:41 PMS228,629 mi
17
42%11:09 AME11:51 PMW-5:29 PMS230,996 mi
18
50%11:49 AMENE--6:16 PMS233,590 mi
19
65%-12:47 AMWNW12:29 PMENE7:05 PMN236,238 mi
20
75%-1:45 AMWNW1:13 PMENE7:56 PMN238,818 mi
21
84%-2:43 AMWNW2:01 PMENE8:50 PMN241,259 mi
22
91%-3:42 AMWNW2:52 PMENE9:45 PMN243,529 mi
23
96%-4:40 AMWNW3:47 PMENE10:41 PMN245,610 mi
24
99%-5:34 AMWNW4:43 PMENE11:34 PMN247,489 mi
25
100%-6:23 AMWNW5:38 PMENE--
26
100%-7:08 AMWNW6:32 PMENE12:25 AMN249,136 mi
27
99%-7:48 AMWNW7:23 PMENE1:12 AMN250,499 mi
28
96%-8:24 AMWNW8:12 PMENE1:55 AMS251,506 mi
29
92%-8:57 AMW8:59 PME2:36 AMS252,062 mi
30
86%-9:29 AMW9:45 PME3:15 AMS252,066 mi
31
78%-10:01 AMW10:32 PME3:53 AMS251,424 mi

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 Udon Thani International Airport is increasing during January, rising from 13% to 20% over the course of the month.

The lowest chance of a muggy day during January is 13% on January 3.

For reference, on June 5, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 3, the least muggy day of the year, there are muggy conditions 13% of the time.

Humidity Comfort Levels in January at Udon Thani International Airport

Humidity Comfort Levels in January at Udon Thani International AirportJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%DecFebJan 313%Jan 313%Jan 3120%Jan 3120%Jan 1114%Jan 1114%Jan 2116%Jan 2116%oppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.

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 Udon Thani International Airport is essentially constant during January, remaining within 0.1 miles per hour of 7.6 miles per hour throughout.

For reference, on December 16, the windiest day of the year, the daily average wind speed is 7.8 miles per hour, while on September 15, the calmest day of the year, the daily average wind speed is 5.0 miles per hour.

Average Wind Speed in January at Udon Thani International Airport

Average Wind Speed in January at Udon Thani International AirportJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphDecFebJan 17.6 mphJan 17.6 mphJan 317.5 mphJan 317.5 mphJan 117.6 mphJan 117.6 mphJan 217.7 mphJan 217.7 mph
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.

The hourly average wind direction at Udon Thani International Airport throughout January is predominantly from the east, with a peak proportion of 85% on January 1.

Wind Direction in January at Udon Thani International Airport

Wind Direction in January at Udon Thani International AirportJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%DecFebwesteastsouthnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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 at Udon Thani International Airport 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.

Time Spent in Various Temperature Bands and the Growing Season in January at Udon Thani International Airport

Time Spent in Various Temperature Bands and the Growing Season in January at Udon Thani International AirportJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%DecFeb100%Jan 16100%Jan 16coolcomfortablewarmhotcoldsweltering
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 percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

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 Udon Thani International Airport are rapidly increasing during January, increasing by 689°F, from 23°F to 712°F, over the course of the month.

Growing Degree Days in January at Udon Thani International Airport

Growing Degree Days in January at Udon Thani International AirportJan1122334455667788991010111112121313141415151616171718181919202021212222232324242525262627272828292930303131100°F100°F200°F200°F300°F300°F400°F400°F500°F500°F600°F600°F700°F700°F800°F800°FDecFebJan 123°FJan 123°FJan 31712°FJan 31712°FJan 11247°FJan 11247°FJan 21475°FJan 21475°F
The average growing degree days accumulated over the course of January, with 25th to 75th and 10th to 90th percentile bands.

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 Udon Thani International Airport is essentially constant during January, remaining within 0.2 kWh of 5.3 kWh throughout.

Average Daily Incident Shortwave Solar Energy in January at Udon Thani International Airport

Average Daily Incident Shortwave Solar Energy in January at Udon Thani International AirportJan11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhDecFebJan 15.1 kWhJan 15.1 kWhJan 315.4 kWhJan 315.4 kWhJan 115.2 kWhJan 115.2 kWhJan 215.3 kWhJan 215.3 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.

For the purposes of this report, the geographical coordinates of Udon Thani International Airport are 17.386 deg latitude, 102.788 deg longitude, and 594 ft elevation.

The topography within 2 miles of Udon Thani International Airport is essentially flat, with a maximum elevation change of 92 feet and an average elevation above sea level of 590 feet. Within 10 miles is essentially flat (344 feet). Within 50 miles contains only modest variations in elevation (1,791 feet).

The area within 2 miles of Udon Thani International Airport is covered by artificial surfaces (54%) and cropland (46%), within 10 miles by cropland (93%), and within 50 miles by cropland (77%) and trees (12%).

This report illustrates the typical weather at Udon Thani International 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

Udon Thani International 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 Nong Khai, Wattay International Airport, Khon Kaen Airport, Loei Airport, Roi Et, and Phetchabun Airport.

Other Data

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 © OpenStreetMap contributors.

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.

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.

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