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March Weather in Saint Martins, United States

Last updated: June 24, 2025

In Saint Martins, United States, the average temperature in March hovers around 9°C (48°F), with extremes ranging from a chilly -16°C (4°F) to a warm 30°C (86°F). Expect around 120 mm (4.7 in) of precipitation spread over 12 days, contributing to an average humidity of 80%. Prepare for varied weather conditions throughout the month!

March Temperature in Saint Martins

In March in Saint Martins, the average temperature is 9°C (48°F), with maximums reaching up to 30°C (86°F) and minimums dropping as low as -16°C (4°F). Be sure to pack for a wide range of temperatures when traveling during this time.

March Weather in Saint Martins: Daily Temperature Highs, Lows, and Averages

The chart illustrates March temperature patterns in Saint Martins, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Martins, March typically has an average temperature of 9°C (48°F), with highs reaching up to 30°C (86°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec333647556676807672584539
Data source: Temperature data for Saint Martins generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

March Precipitation in Saint Martins

In Saint Martins in March, the precipitation amount is 120 mm (4.7 in) over a period of 12 days.

March Precipitation Trends in Saint Martins

The chart displays monthly precipitation patterns in Saint Martins, with values for each month alongside March’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how March’s conditions compare to those of other months. In Saint Martins, March typically receives around 120 mm (4.7 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec7065120124163951099456995942
Data source: Precipitation data for March generated using information from the Copernicus Climate Change Service.
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March Humidity in Saint Martins

In Saint Martins in March humidity is 80%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel quite uncomfortable.

March Average Humidity in Saint Martins

This chart illustrates the average monthly humidity levels in Saint Martins, with March’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In March, average humidity in Saint Martins is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%80%82%83%81%80%76%76%85%86%
Data source: Humidity data for March generated using information from the Copernicus Climate Change Service.

March UV Index in Saint Martins

In Saint Martins in March, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Saint Martins.

Maximum UV Index Levels in Saint Martins for March

The chart shows the monthly maximum UV Index (UVI) for Saint Martins in March, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In March, the maximum UV index in Saint Martins typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111109753
Data source: Saint Martins March UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How March Weather in Saint Martins Compares to Other Months

Weather in Saint Martins varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Saint Martins, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Saint Martins, showing how March’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)70 mm (2.8 inches)82%moderate
February Weather2°C (36°F)65 mm (2.6 inches)80%moderate
March Weather9°C (48°F)120 mm (4.7 inches)80%high
April Weather13°C (55°F)124 mm (4.9 inches)80%very high
May Weather19°C (67°F)163 mm (6.4 inches)82%very high
June Weather25°C (77°F)95 mm (3.7 inches)83%extreme
July Weather26°C (80°F)108 mm (4.3 inches)81%extreme
August Weather25°C (77°F)94 mm (3.7 inches)80%very high
September Weather22°C (73°F)56 mm (2.2 inches)76%very high
October Weather15°C (59°F)99 mm (3.9 inches)76%high
November Weather7°C (45°F)59 mm (2.3 inches)85%moderate
December Weather4°C (40°F)41 mm (1.6 inches)86%moderate

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