Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The advent of September signifies a minor shift to an average high-temperature of a still refreshing 17.2°C (63°F), aligning closely with August. The nighttime temperature in Sint Maarten demonstrates a marginal decline, averaging at a mild 14.9°C (58.8°F) during September.Humidity
September is the least humid month, with an average relative humidity of 77%.Rainfall
In September, the rain falls for 17.1 days. Throughout September, 43mm (1.69") of precipitation is accumulated. Throughout the year, in Sint Maarten, there are 186.9 rainfall days, and 393mm (15.47") of precipitation is accumulated.Snowfall
In Sint Maarten, snow does not fall in April through October.Daylight
In September, the average length of the day in Sint Maarten is 12h and 40min.On the first day of the month, sunrise is at 06:52 and sunset at 20:29. On the last day of September, in Sint Maarten, sunrise is at 07:41 and sunset at 19:20 CEST.
Sunshine
In September, the average sunshine is 6.8h.UV index
In September, the average daily maximum UV index in Sint Maarten is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Heed the precautions - It is counselled to guard against solar damage. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Sint Maarten?
What is the least humid month in Sint Maarten?
What is the average humidity in September in Sint Maarten?
How many days does it rain in September in Sint Maarten?
When it does not snow in Sint Maarten?
What is the average length of the day in September in Sint Maarten?
When are sunrise and sunset in September in Sint Maarten?
How long on average sun shines in September in Sint Maarten?
How high is the UV index in September in Sint Maarten?
Average temperature in September
Sint Maarten, Netherlands
- Average high temperature in September: 17.2°C
The warmest month (with the highest average high temperature) is August (18.9°C).
The month with the lowest average high temperature is February (5.7°C).
- Average low temperature in September: 14.9°C
The month with the highest average low temperature is August (16.4°C).
The coldest month (with the lowest average low temperature) is February (3.5°C).
Average pressure in September
Sint Maarten, Netherlands
- Average pressure in September: 1016.2mbar
The month with the highest atmospheric pressure is May (1016.5mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
Sint Maarten, Netherlands
- Average wind speed in September: 24.6km/h
The windiest month (with the highest average wind speed) is December (33.9km/h).
The calmest month (with the lowest average wind speed) is July (21.3km/h).
Average humidity in September
Sint Maarten, Netherlands
- Average humidity in September: 77%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is September (77%).
Average rainfall in September
Sint Maarten, Netherlands
- Average rainfall in September: 43mm
The wettest month (with the highest rainfall) is October (49mm).
The driest month (with the least rainfall) is April (13mm).
Average rainfall days in September
Sint Maarten, Netherlands
- Average rainfall days in September: 17.1 days
The month with the highest number of rainy days is December (19.7 days).
The month with the least rainy days is April (10.8 days).
Average snowfall in September
Sint Maarten, Netherlands
- Average snowfall in September: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Sint Maarten, Netherlands
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (2.5 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Sint Maarten, Netherlands
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in September: 6h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Sint Maarten, Netherlands
- Average sunshine days in September: 9.3 days
The month with the most sunshine days is May (16.6 days).
The month with the least sunshine days is November (6.5 days).
Average UV index in September
Sint Maarten, Netherlands
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Sint Maarten, Netherlands
- Average cloud cover in September: 47
The month with the most cloud cover is December (Cloud cover 67).
The months with the least cloud cover are April and August (Cloud cover 40).
Average visibility in September
Sint Maarten, Netherlands
- Average visibility in September: 10km
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).
