Climate and monthly weather forecastMary's Fancy, Sint Maarten
Climate and monthly weather forecast
The climate of Mary's Fancy
Under the Köppen climate classification, Mary's Fancy falls under the category of "Aw", denoting a tropical wet and dry climate, otherwise known as a savanna. Situated in Sint Maarten, an island in the northeastern Caribbean, this region experiences a consistent warm climate throughout the year, with high temperatures fluctuating narrowly from 25.8°C (78.4°F) to 28.9°C (84°F), and low temperatures ranging from 24.7°C (76.5°F) to 27.7°C (81.9°F). These figures signify a relatively narrow spread of temperatures throughout the year.The recorded data shows a mid-range relative humidity from 75% to 78%, remaining fairly constant throughout all twelve months. This maintains the overall warm and mild climate of the region, contributing to the tropical environment. Rainfall comes into prominence from May to December, experiencing the widest range from 19mm (0.75") in February to a high of 107mm (4.21") in October. One can observe a clear upward trend in rainfall from April, fully settling in May and remaining significantly high until December.
Additionally, sunlight hours also exhibit variations. February sees the smallest average daylight hours with 11.2, increasing progressively to peak at 13.2 hours in June, then gradually decreasing again. The area enjoys an average visibility of 10km (6.2mi) throughout the year, adding to the region's appeal as a vacation destination.
The best time to visit Mary's Fancy
From a weather perspective, the most pleasant time to visit Mary's Fancy would be February and March. With the daily sunshine hours increasing from 7.3 to 8.9 and relative humidity maintaining a comfortable 75%, the weather is most conducive for outdoor activities and sightseeing. However, it is important to note that February experiences the least rainfall of the year at 19mm (0.75"), which may favor visitors who prefer milder conditions.The worst time to visit Mary's Fancy
Depending upon personal preferences, it may be least desirable to visit Mary's Fancy between May to October, when rainfall is at its peak. While these months offer the warmest temperatures, they also coincide with the highest relative humidity (78%) and increases in cloud cover (from 42% to 39%), which some visitors might find off-putting.Spring weather in Mary's Fancy
Springs in Mary's Fancy, covering March, April and May, are warm and pleasant. While temperatures in March start at 25.8°C (78.4°F) to 24.7°C (76.5°F), they climb to 27.2°C (81°F) to 26.1°C (79°F) by May. Importantly, rainfall starts to increase from 24mm (0.94") in March to 85mm (3.35") in May, and daylight hours also rise from 12.1 to 13 hours. For visitors, this means they may witness the onset of the wet season with an increase in tropical vegetation.Summer weather in Mary's Fancy
Summers, from June to August, are the warmest. With daily high temperatures from 28.1°C (82.6°F) to 28.5°C (83.3°F) and low temperatures from 26.9°C (80.4°F) to 27.7°C (81.9°F), it's certainly the season for heat lovers. These months also see the most sunlight at 13.2 hours. However, rainfall does peak in August at 103mm (4.06"). Taken together, these conditions indicate a humid, tropical summer.Autumn weather in Mary's Fancy
In Autumn, from September to November, visitors can expect the highest overall temperatures, peaking at 28.9°C (84°F) in September. Although rainfall remains high, from 97mm (3.82") to 85mm (3.35") between September and November, the number of daily sunshine hours decreases from 9.2 to 6.5. Prospective vacationers should, therefore, anticipate fluctuations in weather during the fall.Winter weather in Mary's Fancy
Winter months in Mary's Fancy include December, January, and February. The temperatures, just like the rest of the year, stay reasonably warm varying from 26.9°C (80.4°F) to 25.9°C (78.6°F) in high temperatures and 26.1°C (79°F) to 24.8°C (76.6°F) in low temperatures. Starting from an elevated level in December, the rainfall decreases steadily to reach 19mm (0.75") in February, making it the driest month of the year. Additionally, daily sunshine hours experience a marginal increase from 6.6 in December to 7.3 in February.Weather in January
January in Mary's Fancy, Sint Maarten, is categorized traditionally by moderately warm temperatures and considerable humidity. These elements contribute to the establishment of an environment that often results in 27mm (1.06") of precipitation spread across approximately 18 days. Weather in January »Weather in February
In Mary’s Fancy, temperatures in February show a very slight decline compared to January, but the weather remains largely consistent. An interesting characteristic is the drop in rainfall to 19mm (0.75"), reducing the number of wet days to just under 15. Weather in February »Weather in March
March marks a subtle transition in climate at Mary's Fancy, as temperatures hover around the same parameters as February. The amount of rainfall increases slightly to 24mm (0.94"), and the number of rainy days also shows an upward trend. Weather in March »Weather in April
In April, temperatures do rise, nudging up slightly compared to previous months, alongside a significant surge in precipitation at 41mm (1.61"). Consistent daylight conditions observed from the previous month compounded with extra sunshine hours provide a brighter and more vibrant atmosphere. Weather in April »Weather in May
Mary’s Fancy greeted with significantly increased rainfall in May as it registers at 85mm (3.35"), the second-highest rainfall of the year. Temperatures start to climb, bringing a more palpable rise in heat. The stretch of daylight continues to lengthen, peaking midway through the year, and the sunshine shares the skies with increasing clouds. Weather in May »Weather in June
June signals a period of amplified temperature ranges as summer approaches and records the highest sunshine hours at 10.2 hours per day. There is a slight reduction in rainfall captured at 58mm (2.28"), marked by 20.5 rainy days in Mary's Fancy. Weather in June »Weather in July
July is distinctly the month with the highest temperatures at Mary's Fancy, peaking at 28.3°C (82.9°F) for daily lows and 28.5°C (83.3°F) for highs. It brings an integration of heat, rainfall, and wind conditions, all elevated in response to the core summer months. Weather in July »Weather in August
Consequently, in August, the tropical heat continues unabated in Mary's Fancy, albeit with a slight enhancement in temperature. The distinguishing feature of the month is the rainfall reaching a peak at 103mm (4.06"), the highest in the year, spread across roughly 25 days. Weather in August »Weather in September
The weather in September meets with a mild regression in temperature and a slight relief from the heavy rainfall of August. However, 97mm (3.82") of precipitation spread across 22 days does rank it among the rainier months. Essentially, September offers a subtle move towards averting the extreme summer conditions, yet the high hydration in the form of humidity and rainfall still presides. Weather in September »Weather in October
October’s weather predicts a step-down transition from the high-intensity summer months in Mary's Fancy. Notably, the precipitation scales up to 107mm (4.21"), registering as the month with the most rainfall days, clocking at 23.5 days. Weather in October »Weather in November
In November, the environment starts to dry out with a decrease in rainfall as levels descend to 85mm (3.35"), signalling a move away from the high precipitation observed as previously during the year. Sunshine hours scarcely change from October; however, day lengths start to contract slightly. Weather in November »Weather in December
December marks the onset of winter in Mary's Fancy and the weather asserts itself with the lowest rainfall of the year at 42mm (1.65"). This reduction creates a relatively dry atmosphere when compared to previous months. The length of daylight contracts to just over 11 hours, and sunshine hours hover around the same spectrum as November. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Mary's Fancy, Sint Maarten
The warmest month (with the highest average high temperature) is September (28.9°C).
The month with the lowest average high temperature is March (25.8°C).
The months with the highest average low temperature are August and September (27.7°C).
The coldest month (with the lowest average low temperature) is March (24.7°C).
Average pressure
Mary's Fancy, Sint Maarten
- Average pressure in January:
1016.6mbar - Average pressure in February:
1016.5mbar - Average pressure in March:
1016.1mbar - Average pressure in April:
1015.7mbar - Average pressure in May:
1015.7mbar - Average pressure in June:
1016.6mbar
- Average pressure in July:
1016.4mbar - Average pressure in August:
1014.9mbar - Average pressure in September:
1013.4mbar - Average pressure in October:
1012.7mbar - Average pressure in November:
1012.8mbar - Average pressure in December:
1015.2mbar
The months with the highest atmospheric pressure are January and June (1016.6mbar).
The month with the lowest atmospheric pressure is October (1012.7mbar).
Average wind speed
Mary's Fancy, Sint Maarten
- Average wind speed in January:
24.5km/h - Average wind speed in February:
24.2km/h - Average wind speed in March:
22.9km/h - Average wind speed in April:
22.7km/h - Average wind speed in May:
22.8km/h - Average wind speed in June:
23.7km/h
- Average wind speed in July:
25.6km/h - Average wind speed in August:
24.2km/h - Average wind speed in September:
20.3km/h - Average wind speed in October:
20.1km/h - Average wind speed in November:
20.9km/h - Average wind speed in December:
24.7km/h
The windiest month (with the highest average wind speed) is July (25.6km/h).
The calmest month (with the lowest average wind speed) is October (20.1km/h).
Average humidity
Mary's Fancy, Sint Maarten
The months with the highest relative humidity are May, June, July and August (78%).
The months with the lowest relative humidity are January, February, March and December (75%).
Average rainfall
Mary's Fancy, Sint Maarten
The wettest month (with the highest rainfall) is October (107mm).
The driest month (with the least rainfall) is February (19mm).
Average rainfall days
Mary's Fancy, Sint Maarten
- Average rainfall days in January:
18.2 days - Average rainfall days in February:
14.8 days - Average rainfall days in March:
16.3 days - Average rainfall days in April:
19.4 days - Average rainfall days in May:
23.5 days - Average rainfall days in June:
20.5 days
- Average rainfall days in July:
25.1 days - Average rainfall days in August:
25.3 days - Average rainfall days in September:
22.3 days - Average rainfall days in October:
23.5 days - Average rainfall days in November:
22.6 days - Average rainfall days in December:
21 days
The month with the highest number of rainy days is August (25.3 days).
The month with the least rainy days is February (14.8 days).
Average daylight / Average sunshine
Mary's Fancy, Sint Maarten
- Average daylight in January:
11h and 12min - Average daylight in February:
11h and 36min - Average daylight in March:
12h and 6min - Average daylight in April:
12h and 36min - Average daylight in May:
13h and 0min - Average daylight in June:
13h and 12min
- Average daylight in July:
13h and 6min - Average daylight in August:
12h and 42min - Average daylight in September:
12h and 12min - Average daylight in October:
11h and 42min - Average daylight in November:
11h and 18min - Average daylight in December:
11h and 6min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 6min).
- Average sunshine in January:
7h and 18min - Average sunshine in February:
8h and 54min - Average sunshine in March:
8h and 48min - Average sunshine in April:
10h and 0min - Average sunshine in May:
10h and 12min - Average sunshine in June:
10h and 6min
- Average sunshine in July:
10h and 12min - Average sunshine in August:
10h and 18min - Average sunshine in September:
9h and 12min - Average sunshine in October:
6h and 24min - Average sunshine in November:
6h and 30min - Average sunshine in December:
6h and 36min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is October (Average sunshine: 6h and 24min).
Average sunshine days
Mary's Fancy, Sint Maarten
- Average sunshine days in January:
8.3 days - Average sunshine days in February:
9.4 days - Average sunshine days in March:
9.9 days - Average sunshine days in April:
7.1 days - Average sunshine days in May:
4 days - Average sunshine days in June:
2.8 days
- Average sunshine days in July:
1.9 days - Average sunshine days in August:
1.7 days - Average sunshine days in September:
3.7 days - Average sunshine days in October:
4.8 days - Average sunshine days in November:
5.4 days - Average sunshine days in December:
5.6 days
The month with the most sunshine days is March (9.9 days).
The month with the least sunshine days is August (1.7 days).
Average UV index
Mary's Fancy, Sint Maarten
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover
Mary's Fancy, Sint Maarten
The months with the most cloud cover are May, June and August (Cloud cover 42).
The months with the least cloud cover are February and March (Cloud cover 34).
Average visibility
Mary's Fancy, Sint Maarten
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





