Marigot
Saint Martin
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Marigot, Saint Martin

A beautiful morning shot of the stunning island city of Marigot, Saint Martin, with surfing boats all over ashore
A beautiful morning shot of the stunning island city of Marigot, Saint Martin, with surfing boats all over ashore
The first month of the autumn, September, is also a moderately hot month in Marigot, Saint Martin, with average temperature varying between 27.7°C (81.9°F) and 28.8°C (83.8°F).

Temperature

September is the warmest month, with an average high-temperature of 28.8°C (83.8°F) and an average low-temperature of 27.7°C (81.9°F).

Heat index

In September, the average heat index is evaluated at a hot 33.6°C (92.5°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, differences in body mass, height, and shape, clothing), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In September, the average relative humidity in Marigot is 77%.

Rainfall

In September, the rain falls for 21.7 days. Throughout September, 99mm (3.9") of precipitation is accumulated. In Marigot, Saint Martin, during the entire year, the rain falls for 252.8 days and collects up to 771mm (30.35") of precipitation.

Daylight

The average length of the day in Marigot is 12.2h.

Sunshine

In September, the average sunshine in Marigot is 9.4h.

UV index

Months with the highest UV index in Marigot are January through November, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 7 in September interpret into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the warmest month in Marigot?

With an average high-temperature of 28.8°C (83.8°F) and an average low-temperature of 27.7°C (81.9°F), September is the warmest month in Marigot, Saint Martin.

What is the temperature in September in Marigot?

The average high-temperature, in September, in Marigot, is 28.8°C (83.8°F), while the average low-temperature is 27.7°C (81.9°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that combines both air temperature and relative humidity, in September is evaluated at 33.6°C (92.5°F).

What is the average humidity in September in Marigot?

In September, the average relative humidity is 77%.

How many days does it rain in September in Marigot?

In Marigot, in September, it is raining for 21.7 days, with typically 99mm (3.9") of accumulated precipitation.

What is the average length of the day in September in Marigot?

In September, the average length of the day in Marigot, Saint Martin, is 12.2h.

How long on average sun shines in September in Marigot?

The average sunshine in September in Marigot, Saint Martin, is 9.4h.

What is the month with the highest UV index in Marigot?

Months with the highest UV index in Marigot are January through November, with an average maximum UV index of 7.

How high is the UV index in September in Marigot?

In Marigot, the average daily maximum UV index in September is 7. A UV Index reading of 6 to 7 represents a high hazard to health from the exposure to the Sun's UV radiation.
Average temperature in September - Marigot, Saint Martin
  • Average high temperature in September: 28.8°C

The warmest month (with the highest average high temperature) is September (28.8°C).
The month with the lowest average high temperature is March (25.8°C).

  • Average low temperature in September: 27.7°C

The month with the highest average low temperature is September (27.7°C).
The coldest month (with the lowest average low temperature) is March (24.7°C).

Average humidity in September - Marigot, Saint Martin
  • Average humidity in September: 77%

Months with the highest relative humidity are May, June, July and August (78%).
Months with the lowest relative humidity are January, February, March and December (75%).

Average rainfall in September - Marigot, Saint Martin
  • Average rainfall in September: 99mm

The wettest month (with the highest rainfall) is October (103mm).
The driest month (with the lowest rainfall) is February (19mm).

Average rainfall days in September - Marigot, Saint Martin
  • Average rainfall days in September: 21.7 days

The month with the highest number of rainy days is August (25.3 days).
The month with the lowest number of rainy days is February (14.8 days).

Average daylight in September / Average sunshine in September - Marigot, Saint Martin
  • Average daylight in September: 12.2h

The month with the longest days is June (Average daylight: 13.2h).
The month with shortest days is December (Average daylight: 11.1h).

  • Average sunshine in September: 9.4h

The month with most sunshine is August (Average sunshine: 10.3h).
Months with least sunshine are November and December (Average sunshine: 6.5).

Average UV index in September - Marigot, Saint Martin
  • Average UV index in September: 7

Months with the highest UV index are January, February, March, April, May, June, July, August, September, October and November (UV index 7).
The month with the lowest UV index is December (UV index 6).