1. WeatherSpark.com
  2. Sint Maarten

Climate and Average Weather Year Round in Sint Maarten Sint Maarten

The climate in Sint Maarten is hot, oppressive, windy, and partly cloudy. Over the course of the year, the temperature typically varies from 74°F to 88°F and is rarely below 72°F or above 91°F.

Based on the beach/pool score, the best time of year to visit Sint Maarten for hot-weather activities is from early December to mid April.

Climate in Sint Maarten

warmhotwarmJanFebMarAprMayJunJulAugSepOctNovDecNowNow82%82%31%31%clearovercastprecipitation: 2.4 inprecipitation: 2.4 in0.2 in0.2 inmuggy: 100%muggy: 100%83%83%beach/pool score: 8.8beach/pool score: 8.84.94.9
Sint Maarten weather by month. Click on each chart for more information.

The temperature in Sint Maarten varies so little throughout the year that it is not entirely meaningful to discuss hot and cold seasons.

Average High and Low Temperature in Sint Maarten

Average High and Low Temperature in Sint MaartenJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FFeb 1383°FFeb 1383°FAug 2788°FAug 2788°F74°F74°F80°F80°FJun 1187°FJun 1187°FOct 2087°FOct 2087°FDec 1584°FDec 1584°FMar 2884°FMar 2884°F79°F79°F79°F79°F76°F76°F75°F75°FNowNow
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.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 83°F83°F83°F85°F86°F87°F88°F88°F88°F87°F86°F84°F
Temp. 78°F78°F78°F80°F81°F83°F83°F84°F84°F83°F81°F79°F
Low 75°F75°F75°F76°F78°F80°F80°F80°F80°F79°F78°F76°F

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 in Sint Maarten

Average Hourly Temperature in Sint MaartenJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowwarmhot
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.
Map
Marker
© OpenStreetMap contributors

Compare Sint Maarten to another city:

Map

In Sint Maarten, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year in Sint Maarten begins around November 18 and lasts for 5.3 months, ending around April 27.

The clearest month of the year in Sint Maarten is January, during which on average the sky is clear, mostly clear, or partly cloudy 81% of the time.

The cloudier part of the year begins around April 27 and lasts for 6.7 months, ending around November 18.

The cloudiest month of the year in Sint Maarten is September, during which on average the sky is overcast or mostly cloudy 65% of the time.

Cloud Cover Categories in Sint Maarten

Cloud Cover Categories in Sint MaartenclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jan 1282%Jan 1282%May 2931%May 2931%Nov 1857%Nov 1857%Apr 2757%Apr 2757%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.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 19%21%24%35%61%62%52%55%65%63%45%26%
Clearer 81%79%76%65%39%38%48%45%35%37%55%74%

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

The wetter season lasts 7.0 months, from May 1 to December 3, with a greater than 12% chance of a given day being a wet day. The month with the most wet days in Sint Maarten is September, with an average of 6.4 days with at least 0.04 inches of precipitation.

The drier season lasts 5.0 months, from December 3 to May 1. The month with the fewest wet days in Sint Maarten is March, with an average of 1.1 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Sint Maarten is September, with an average of 6.4 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 22% on October 24.

Daily Chance of Precipitation in Sint Maarten

Daily Chance of Precipitation in Sint MaartenwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Oct 2422%Oct 2422%Jan 163%Jan 163%May 112%May 112%Dec 312%Dec 312%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).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 1.3d1.1d1.1d2.3d5.2d3.5d3.8d4.9d6.4d6.4d5.3d3.0d

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. Sint Maarten experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.8 months, from April 7 to December 31, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Sint Maarten is October, with an average rainfall of 2.4 inches.

The rainless period of the year lasts for 3.2 months, from December 31 to April 7. The month with the least rain in Sint Maarten is February, with an average rainfall of 0.2 inches.

Average Monthly Rainfall in Sint Maarten

Average Monthly Rainfall in Sint MaartenrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inOct 162.4 inOct 162.4 inJan 280.2 inJan 280.2 inMay 191.6 inMay 191.6 inApr 70.5 inApr 70.5 inDec 310.5 inDec 310.5 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.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 0.3″0.2″0.3″0.7″1.6″0.9″0.8″1.2″2.1″2.4″2.0″0.8″

The length of the day in Sint Maarten varies over the course of the year. In 2024, the shortest day is December 21, with 11 hours, 3 minutes of daylight; the longest day is June 20, with 13 hours, 13 minutes of daylight.

Hours of Daylight and Twilight in Sint Maarten

Hours of Daylight and Twilight in Sint MaartenJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 1912 hr, 6 minMar 1913 hr, 13 minJun 2013 hr, 13 minJun 2012 hr, 8 minSep 2212 hr, 8 minSep 2211 hr, 3 minDec 2111 hr, 3 minDec 21nightnightdayNowNow
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.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 11.2h11.6h12.1h12.6h13.0h13.2h13.1h12.7h12.2h11.7h11.3h11.1h

The earliest sunrise is at 5:35 AM on June 4, and the latest sunrise is 1 hour, 11 minutes later at 6:46 AM on January 19. The earliest sunset is at 5:34 PM on November 24, and the latest sunset is 1 hour, 18 minutes later at 6:52 PM on July 5.

Daylight saving time (DST) is not observed in Sint Maarten during 2024.

Sunrise & Sunset with Twilight in Sint Maarten

Sunrise & Sunset with Twilight in Sint MaartenJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 45:35 AMJun 45:35 AM6:52 PMJul 56:52 PMJul 5Nov 245:34 PMNov 245:34 PM6:46 AMJan 196:46 AMJan 19daynightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. 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 Sint Maarten

Solar Elevation and Azimuth in Sint MaartenJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM000010101010202020203030303040404040505050606070708000001010101020202020303030304040404050505050606060707080804990NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 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 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.

Moon Rise, Set & Phases in Sint Maarten

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.

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.

Sint Maarten experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 11 months, from March 25 to February 17, during which time the comfort level is muggy, oppressive, or miserable at least 87% of the time. The month with the most muggy days in Sint Maarten is August, with 31.0 days that are muggy or worse.

The month with the fewest muggy days in Sint Maarten is February, with 25.3 days that are muggy or worse.

Humidity Comfort Levels in Sint Maarten

Humidity Comfort Levels in Sint MaartenmuggymuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 583%Mar 583%100%Aug 10100%Aug 10NowNowmiserablemiserableoppressiveoppressivemuggymuggyhumidhumid
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.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 28.3d25.3d26.6d28.4d30.7d29.9d31.0d31.0d30.0d30.9d29.4d29.4d

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 Sint Maarten experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 2.9 months, from May 31 to August 27, with average wind speeds of more than 14.5 miles per hour. The windiest month of the year in Sint Maarten is July, with an average hourly wind speed of 16.5 miles per hour.

The calmer time of year lasts for 9.1 months, from August 27 to May 31. The calmest month of the year in Sint Maarten is October, with an average hourly wind speed of 12.5 miles per hour.

Average Wind Speed in Sint Maarten

Average Wind Speed in Sint MaartenwindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphJul 1216.7 mphJul 1216.7 mphOct 812.3 mphOct 812.3 mphMay 3114.5 mphMay 3114.5 mphAug 2714.5 mphAug 2714.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 15.815.514.413.814.015.616.515.213.312.514.115.5

The predominant average hourly wind direction in Sint Maarten is from the east throughout the year.

Wind Direction in Sint Maarten

Wind Direction in Sint MaartenJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNoweastsouthnorth
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).

Sint Maarten 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 3.5 months, from July 28 to November 12, with an average temperature above 83°F. The month of the year in Sint Maarten with the warmest water is September, with an average temperature of 84°F.

The time of year with cooler water lasts for 3.0 months, from January 10 to April 11, with an average temperature below 80°F. The month of the year in Sint Maarten with the coolest water is February, with an average temperature of 79°F.

Average Water Temperature in Sint Maarten

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 79°F79°F79°F80°F81°F82°F82°F83°F84°F83°F82°F81°F

To characterize how pleasant the weather is in Sint Maarten throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Sint Maarten for general outdoor tourist activities is from late December to late March, with a peak score in the second week of February.

Tourism Score in Sint Maarten

Tourism Score in Sint Maartenbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.37.32.72.73.13.1NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Sint Maarten for hot-weather activities is from early December to mid April, with a peak score in the third week of January.

Beach/Pool Score in Sint Maarten

Beach/Pool Score in Sint Maartenbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.88.84.94.96.06.05.55.5NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

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 Sint Maarten 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 Sint Maarten

Time Spent in Various Temperature Bands and the Growing Season in Sint MaartenJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%100%Jan 1100%Jan 1100%Jul 2100%Jul 2NowNowcomfortablewarmhot
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.

Growing Degree Days in Sint Maarten

Growing Degree Days in Sint MaartenJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F2,000°F2,000°F4,000°F4,000°F6,000°F6,000°F8,000°F8,000°F10,000°F10,000°FJan 490°FJan 490°FDec 3111,261°FDec 3111,261°FNowNow
The average growing degree days accumulated over the course of the year, 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 experiences some seasonal variation over the course of the year.

The brighter period of the year lasts for 1.9 months, from March 7 to May 5, with an average daily incident shortwave energy per square meter above 6.7 kWh. The brightest month of the year in Sint Maarten is April, with an average of 7.1 kWh.

The darker period of the year lasts for 3.8 months, from September 16 to January 8, with an average daily incident shortwave energy per square meter below 5.1 kWh. The darkest month of the year in Sint Maarten is October, with an average of 4.7 kWh.

Average Daily Incident Shortwave Solar Energy in Sint Maarten

Average Daily Incident Shortwave Solar Energy in Sint MaartenbrightdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhApr 137.2 kWhApr 137.2 kWhOct 294.6 kWhOct 294.6 kWhMar 76.7 kWhMar 76.7 kWhSep 165.1 kWhSep 165.1 kWhJan 85.1 kWhJan 85.1 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.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 5.36.16.87.16.25.96.15.95.24.74.74.9

For the purposes of this report, the geographical coordinates of Sint Maarten are 18.042 deg latitude, -63.067 deg longitude, and 0 ft elevation.

The topography within 2 miles of Sint Maarten is essentially flat, with a maximum elevation change of 0 feet and an average elevation above sea level of 0 feet. Within 10 miles is also essentially flat (0 feet). Within 50 miles is also essentially flat (0 feet).

The area within 2 miles of Sint Maarten is covered by grassland (41%), trees (27%), and water (18%), within 10 miles by water (91%), and within 50 miles by water (99%).

This report illustrates the typical weather in Sint Maarten, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used for this report can be found on the Princess Juliana International Airport page.

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.

Please review our full terms contained on our Terms of Service page.

Other Locations