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April Weather in Saint Martin, United States

Last updated: June 24, 2025

In April, the average temperature in Saint Martin, United States is a comfortable 20°C (68°F). Expect a range from a cool 5°C (41°F) to a warm 31°C (89°F). Be prepared for some rain, as precipitation averages 122 mm (4.8 in) over approximately 10 days, and humidity levels hover at a notable 78%.

April Temperature in Saint Martin

In April in Saint Martin, the average temperature is 20°C (68°F). Maximums can reach 31°C (89°F), while minimums can drop as low as 5°C (41°F). This makes Saint Martin a perfect destination for travelers looking to enjoy mild weather with a mix of warm and cooler days.

April Weather in Saint Martin: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Saint Martin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Martin, April typically has an average temperature of 20°C (68°F), with highs reaching up to 31°C (89°F) and lows dropping to around 5°C (41°F).
JanFebMarAprMayJunJulAugSepOctNovDec535964687580828179726056
Data source: Temperature data for Saint Martin 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.

April Precipitation in Saint Martin

In Saint Martin in April, the total precipitation amount reaches 122 mm (4.8 in) over the course of 10 days.

April Precipitation Trends in Saint Martin

The chart displays monthly precipitation patterns in Saint Martin, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Saint Martin, April typically receives around 122 mm (4.8 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec921078912213224719022414513258110
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Saint Martin

In Saint Martin in April humidity is 78%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes exploring the sights a bit sticky, so travelers should stay hydrated and take frequent breaks in the shade.

April Average Humidity in Saint Martin

This chart illustrates the average monthly humidity levels in Saint Martin, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Saint Martin is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%80%80%78%73%71%79%78%80%76%83%87%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Saint Martin

In Saint Martin in April, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Saint Martin.

Maximum UV Index Levels in Saint Martin for April

The chart shows the monthly maximum UV Index (UVI) for Saint Martin in April, 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 April, the maximum UV index in Saint Martin typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec589111111121110864
Data source: Saint Martin April 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 April Weather in Saint Martin Compares to Other Months

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

This table compares monthly weather conditions in Saint Martin, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (53°F)92 mm (3.6 inches)82%moderate
February Weather15°C (59°F)107 mm (4.2 inches)80%very high
March Weather18°C (64°F)88 mm (3.5 inches)80%very high
April Weather20°C (68°F)122 mm (4.8 inches)78%extreme
May Weather24°C (76°F)132 mm (5.2 inches)73%extreme
June Weather27°C (81°F)247 mm (9.7 inches)71%extreme
July Weather28°C (82°F)189 mm (7.5 inches)79%extreme
August Weather27°C (82°F)224 mm (8.8 inches)78%extreme
September Weather26°C (79°F)145 mm (5.7 inches)80%very high
October Weather22°C (73°F)132 mm (5.2 inches)76%very high
November Weather15°C (60°F)58 mm (2.3 inches)83%high
December Weather13°C (56°F)110 mm (4.3 inches)87%moderate

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