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March Weather in Sanya China

Daily high temperatures increase by 4°F, from 79°F to 83°F, rarely falling below 75°F or exceeding 85°F.

Daily low temperatures increase by 4°F, from 71°F to 76°F, rarely falling below 65°F or exceeding 79°F.

For reference, on June 11, the hottest day of the year, temperatures in Sanya typically range from 81°F to 88°F, while on January 23, the coldest day of the year, they range from 67°F to 77°F.

Average High and Low Temperature in March in Sanya

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 March. 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 March in Sanya

Average Hourly Temperature in March in SanyaMar112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMFebAprNowNowcomfortablecomfortablewarmhot
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.

Dangriga, Belize (9,732 miles away); Batabanó, Cuba (9,507 miles); and Pointe-Noire, Congo - Brazzaville (6,830 miles) are the far-away foreign places with temperatures most similar to Sanya (view comparison).

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The month of March in Sanya experiences increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 38% to 49%.

The clearest day of the month is March 1, with clear, mostly clear, or partly cloudy conditions 62% of the time.

For reference, on June 3, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 95%, while on February 24, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 63%.

Cloud Cover Categories in March in Sanya

Cloud Cover Categories in March in SanyaMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FebAprMar 162%Mar 162%Mar 3151%Mar 3151%Mar 1160%Mar 1160%Mar 2156%Mar 2156%NowNowclearmostly 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. In Sanya, the chance of a wet day over the course of March is rapidly increasing, starting the month at 4% and ending it at 11%.

For reference, the year's highest daily chance of a wet day is 52% on September 18, and its lowest chance is 3% on February 2.

Probability of Precipitation in March in Sanya

Probability of Precipitation in March in SanyaMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%2%2%4%4%6%6%8%8%10%10%12%12%14%14%16%16%18%18%20%20%22%22%FebAprMar 14%Mar 14%Mar 3111%Mar 3111%Mar 115%Mar 115%Mar 217%Mar 217%NowNowrain
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 March in Sanya is increasing, starting the month at 0.4 inches, when it rarely exceeds 1.2 inches or falls below -0.0 inches, and ending the month at 1.3 inches, when it rarely exceeds 3.3 inches or falls below 0.1 inches.

Average Monthly Rainfall in March in Sanya

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 March in Sanya, the length of the day is increasing. From the start to the end of the month, the length of the day increases by 31 minutes, implying an average daily increase of 1 minute, 2 seconds, and weekly increase of 7 minutes, 14 seconds.

The shortest day of the month is March 1, with 11 hours, 47 minutes of daylight and the longest day is March 31, with 12 hours, 18 minutes of daylight.

Hours of Daylight and Twilight in March in Sanya

Hours of Daylight and Twilight in March in SanyaMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hrFebAprMar 2012 hr, 6 minMar 2012 hr, 6 minnightnightdaydayMar 111 hr, 47 minMar 111 hr, 47 minNowNow
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 latest sunrise of the month in Sanya is 7:00 AM on March 1 and the earliest sunrise is 24 minutes earlier at 6:37 AM on March 31.

The earliest sunset is 6:48 PM on March 1 and the latest sunset is 7 minutes later at 6:55 PM on March 31.

Daylight saving time is not observed in Sanya during 2024.

For reference, on June 20, the longest day of the year, the Sun rises at 6:06 AM and sets 13 hours, 14 minutes later, at 7:20 PM, while on December 21, the shortest day of the year, it rises at 7:09 AM and sets 11 hours, 2 minutes later, at 6:11 PM.

Sunrise & Sunset with Twilight in March in Sanya

The solar day over the course of March. 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 March in Sanya

Solar Elevation and Azimuth in March in SanyaMar112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 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 AMFebApr00101020202030304040505050606070800001010202030303040405050606070NowNow
northeastsouthwest
Solar elevation and azimuth over the course of March 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 March 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 March in Sanya

Moon Rise, Set & Phases in March in SanyaMar112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313112 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMFebAprFeb 107:00 AMFeb 107:00 AMFeb 248:31 PMFeb 248:31 PMMar 105:01 PMMar 105:01 PMMar 253:01 PMMar 253:01 PMApr 92:22 AMApr 92:22 AMApr 247:50 AMApr 247:50 AM7:28 AM7:28 AM7:08 PM7:08 PM6:39 PM6:39 PM7:32 AM7:32 AM6:45 AM6:45 AM6:52 PM6:52 PM6:58 PM6:58 PM7:08 AM7:08 AM6:39 AM6:39 AM7:36 PM7:36 PM6:30 PM6:30 PM6:15 AM6:15 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.
Mar 2024IlluminationMoonriseMoonsetMoonriseMeridian PassingDistance
1
77%-10:14 AMWSW11:30 PMESE4:25 AMS248,215 mi
2
68%-10:53 AMWSW-5:11 AMS245,711 mi
3
50%12:25 AMESE11:38 AMWSW-6:01 AMS242,627 mi
4
47%1:23 AMESE12:30 PMWSW-6:56 AMS239,054 mi
5
36%2:23 AMESE1:28 PMWSW-7:55 AMS235,166 mi
6
25%3:23 AMESE2:31 PMWSW-8:57 AMS231,225 mi
7
15%4:20 AMESE3:37 PMWSW-9:59 AMS227,569 mi
8
8%5:13 AMESE4:44 PMWSW-10:59 AMS224,565 mi
9
2%6:01 AMESE5:49 PMWSW-11:55 AMS222,552 mi
10
0%6:45 AME6:52 PMW-12:48 PMS221,769 mi
11
1%7:27 AME7:54 PMW-1:40 PMS222,313 mi
12
5%8:09 AME8:55 PMW-2:30 PMS224,116 mi
13
12%8:50 AMENE9:57 PMWNW-3:21 PMS226,964 mi
14
21%9:34 AMENE10:59 PMWNW-4:14 PMN230,541 mi
15
32%10:21 AMENE--5:09 PMN234,491 mi
16
42%-12:01 AMWNW11:12 AMENE6:06 PMN238,467 mi
17
50%-1:02 AMWNW12:06 PMENE7:03 PMN242,182 mi
18
63%-2:00 AMWNW1:02 PMENE7:58 PMN245,427 mi
19
73%-2:52 AMWNW1:58 PMENE8:50 PMN248,075 mi
20
81%-3:39 AMWNW2:53 PMENE9:39 PMN250,078 mi
21
88%-4:21 AMWNW3:45 PMENE10:24 PMN251,444 mi
22
94%-4:59 AMWNW4:36 PMENE11:06 PMS252,217 mi
23
98%-5:33 AMWNW5:24 PME11:46 PMS252,460 mi
24
99%-6:06 AMW6:11 PME--
25
100%-6:37 AMW6:58 PME12:25 AMS252,234 mi
26
100%-7:08 AMW7:45 PME1:03 AMS251,588 mi
27
98%-7:40 AMW8:34 PMESE1:43 AMS250,551 mi
28
95%-8:15 AMWSW9:25 PMESE2:24 AMS249,130 mi
29
89%-8:53 AMWSW10:19 PMESE3:09 AMS247,317 mi
30
82%-9:35 AMWSW11:16 PMESE3:57 AMS245,100 mi
31
73%-10:24 AMWSW-4:50 AMS242,481 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 in Sanya is very rapidly increasing during March, rising from 71% to 93% over the course of the month.

For reference, on June 1, the muggiest day of the year, there are muggy conditions 100% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 27% of the time.

Humidity Comfort Levels in March in Sanya

Humidity Comfort Levels in March in SanyaMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%FebAprMar 171%Mar 171%Mar 3193%Mar 3193%Mar 1180%Mar 1180%Mar 2189%Mar 2189%NowNowmiserablemiserableoppressiveoppressivemuggymuggyhumidhumidcomfortablecomfortabledrydry
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 in Sanya is essentially constant during March, remaining within 0.1 miles per hour of 8.3 miles per hour throughout.

For reference, on November 30, the windiest day of the year, the daily average wind speed is 10.9 miles per hour, while on September 7, the calmest day of the year, the daily average wind speed is 6.9 miles per hour.

Average Wind Speed in March in Sanya

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 in Sanya throughout March is predominantly from the east, with a peak proportion of 65% on March 1.

Wind Direction in March in Sanya

Wind Direction in March in SanyaESMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%20%80%40%60%60%40%80%20%100%0%FebAprNowNowsoutheast
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).

Sanya 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 Sanya is gradually increasing during March, rising by 3°F, from 74°F to 77°F, over the course of the month.

Average Water Temperature in March in Sanya

Average Water Temperature in March in SanyaMar112233445566778899101011111212131314141515161617171818191920202121222223232424252526262727282829293030313170°F70°F72°F72°F74°F74°F76°F76°F78°F78°F80°F80°F82°F82°F84°F84°FFebAprMar 174°FMar 174°FMar 3177°FMar 3177°FMar 1175°FMar 1175°FMar 2176°FMar 2176°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.

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 Sanya 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 March in Sanya

Time Spent in Various Temperature Bands and the Growing Season in March in SanyaMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%FebApr100%Mar 16100%Mar 16NowNowcomfortablewarmhotcool
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 in Sanya are rapidly increasing during March, increasing by 797°F, from 1,345°F to 2,142°F, over the course of the month.

Growing Degree Days in March in Sanya

Growing Degree Days in March in SanyaMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031311,300°F1,300°F1,400°F1,400°F1,500°F1,500°F1,600°F1,600°F1,700°F1,700°F1,800°F1,800°F1,900°F1,900°F2,000°F2,000°F2,100°F2,100°F2,200°F2,200°FFebAprMar 11,345°FMar 11,345°FMar 312,142°FMar 312,142°FMar 111,593°FMar 111,593°FMar 211,858°FMar 211,858°FNowNow
The average growing degree days accumulated over the course of March, 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 in Sanya is essentially constant during March, remaining within 0.2 kWh of 5.9 kWh throughout.

Average Daily Incident Shortwave Solar Energy in March in Sanya

Average Daily Incident Shortwave Solar Energy in March in SanyaMar11223344556677889910101111121213131414151516161717181819192020212122222323242425252626272728282929303031310 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWhFebAprMar 15.7 kWhMar 15.7 kWhMar 316.2 kWhMar 316.2 kWhMar 115.9 kWhMar 115.9 kWhMar 216.1 kWhMar 216.1 kWhNowNow
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 Sanya are 18.243 deg latitude, 109.505 deg longitude, and 36 ft elevation.

The topography within 2 miles of Sanya contains significant variations in elevation, with a maximum elevation change of 646 feet and an average elevation above sea level of 65 feet. Within 10 miles contains significant variations in elevation (1,936 feet). Within 50 miles contains very significant variations in elevation (6,017 feet).

The area within 2 miles of Sanya is covered by artificial surfaces (45%), trees (23%), and water (19%), within 10 miles by water (54%) and trees (25%), and within 50 miles by water (63%) and trees (26%).

This report illustrates the typical weather in Sanya, 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, Sanya Phoenix International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Sanya.

At a distance of 12 kilometers from Sanya, 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 Sanya 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 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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