September weather forecast
Sosúa, Dominican Republic

Weather in September

The first month of the autumn, September, is still a hot month in Sosúa, Dominican Republic, with an average temperature ranging between min 24.1°C (75.4°F) and max 30.1°C (86.2°F).

Temperature

In Sosúa, Dominican Republic, the average high-temperature in September is practically the same as in August - a still hot 30.1°C (86.2°F). In September, in Sosúa, the average low-temperature is 24.1°C (75.4°F).

Heat index

In September, the average heat index is estimated at a sweltering 37.7°C (99.9°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like differences in body mass, height, and shape, clothing, pregnancy, and activity influence one's weather impression. 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 particularly important for children. 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.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Sosúa, in September, it is raining for 20.7 days, with typically 76mm (2.99") of accumulated precipitation. In Sosúa, Dominican Republic, during the entire year, the rain falls for 229.2 days and collects up to 719mm (28.31") of precipitation.

Sea temperature

September is the month with the warmest seawater, with an average sea temperature of 29.3°C (84.7°F).
Note: For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

The average length of the day in September is 12h and 15min.
On the first day of September, sunrise is at 06:26 and sunset at 18:57. On the last day of the month, sunrise is at 06:32 and sunset at 18:31 AST.

Sunshine

With an average of 9.6h of sunshine, September has the most sunshine of the year in Sosúa.

UV index

The months with the highest UV index in Sosúa are May through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in September transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.
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FAQ

What is the temperature in September in Sosúa?

In Sosúa, Dominican Republic, in September, the average high-temperature is 30.1°C (86.2°F), and the average low-temperature is 24.1°C (75.4°F). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in September is estimated at 37.7°C (99.9°F).

What is the average humidity in September in Sosúa?

In Sosúa, Dominican Republic, the average relative humidity in September is 79%.

How many days does it rain in September in Sosúa?

In September, in Sosúa, the rain falls for 20.7 days. Throughout September, 76mm (2.99") of precipitation is accumulated.

What is the month with the warmest sea water in Sosúa?

September is the month with the warmest seawater in Sosúa, with an average sea temperature of 29.3°C (84.7°F).

What is the water temperature in September in Sosúa?

In September, the average sea temperature in Sosúa is 29.3°C (84.7°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Sosúa have in September?

In September, the average day length in Sosúa is 12h and 15min.

When are sunrise and sunset in September in Sosúa?

In September, on the first day of the month, sunrise is at 06:26 and sunset at 18:57. On the last day of the month, in Sosúa, Dominican Republic, sunrise is at 06:32 and sunset at 18:31 AST.

What month has the most sunshine in Sosúa?

The month with the most sunshine in Sosúa is September, with an average of 9.6h of sunshine.

How long on average sun shines in September in Sosúa?

In September, the average sunshine duration in Sosúa is 9.6h.

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

The months with the highest UV index in Sosúa are May through October, with an average maximum UV index of 7.

How high is the UV index in September in Sosúa?

The average daily maximum UV index in September in Sosúa is 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to Sun's UV rays.

Average temperature in September
Sosúa, Dominican Republic

Average temperature in September - Sosúa, Dominican Republic
  • Average high temperature in September: 30.1°C

The warmest month (with the highest average high temperature) is August (30.3°C).
The month with the lowest average high temperature is January (26.3°C).

  • Average low temperature in September: 24.1°C

The month with the highest average low temperature is July (24.3°C).
The coldest month (with the lowest average low temperature) is March (20.9°C).

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Average pressure in September
Sosúa, Dominican Republic

Average pressure in September - Sosúa, Dominican Republic
  • Average pressure in September: 1013.7mbar

The month with the highest atmospheric pressure is January (1017.3mbar).
The month with the lowest atmospheric pressure is October (1013mbar).

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Average wind speed in September
Sosúa, Dominican Republic

Average wind speed in September - Sosúa, Dominican Republic
  • Average wind speed in September: 12.9km/h

The windiest month (with the highest average wind speed) is July (17.3km/h).
The calmest months (with the lowest average wind speed) are October and November (11.5km/h).

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Average humidity in September
Sosúa, Dominican Republic

Average humidity in September - Sosúa, Dominican Republic
  • Average humidity in September: 79%

The months with the highest relative humidity are January and December (81%).
The month with the lowest relative humidity is July (77%).

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Average rainfall in September
Sosúa, Dominican Republic

Average rainfall in September - Sosúa, Dominican Republic
  • Average rainfall in September: 76mm

The wettest month (with the highest rainfall) is May (100mm).
The driest month (with the least rainfall) is July (39mm).

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Average rainfall days in September
Sosúa, Dominican Republic

Average rainfall days in September - Sosúa, Dominican Republic
  • Average rainfall days in September: 20.7 days

The month with the highest number of rainy days is November (21.9 days).
The month with the least rainy days is June (15.6 days).

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Average sea temperature in September
Sosúa, Dominican Republic

Average sea temperature in September - Sosúa, Dominican Republic
  • Average sea temperature in September: 29.3°C

The best month for swimming (with the highest average sea temperature) is September (29.3°C).
The coldest month (with the lowest average sea temperature) is February (25.8°C).

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Average daylight in September /
Average sunshine in September
Sosúa, Dominican Republic

Average daylight in September / Average sunshine in September - Sosúa, Dominican Republic
  • Average daylight in September: 12h and 15min

The month with the longest days is June (Average daylight: 13h and 19min).
The month with the shortest days is December (Average daylight: 10h and 58min).

  • Average sunshine in September: 9.6h

The month with the most sunshine is September (Average sunshine: 9.6h).
The month with the least sunshine is March (Average sunshine: 8.4h).

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Average sunshine days in September
Sosúa, Dominican Republic

Average sunshine days in September - Sosúa, Dominican Republic
  • Average sunshine days in September: 5.3 days

The month with the most sunshine days is June (9.3 days).
The month with the least sunshine days is September (5.3 days).

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Average UV index in September
Sosúa, Dominican Republic

Average UV index in September - Sosúa, Dominican Republic
  • Average UV index in September: 7

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

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Average cloud cover in September
Sosúa, Dominican Republic

Average cloud cover in September - Sosúa, Dominican Republic
  • Average cloud cover in September: 24

The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 24).

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Average visibility in September
Sosúa, Dominican Republic

Average visibility in September - Sosúa, Dominican Republic
  • 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).

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