September weather forecastSanto Domingo, Cuba
September
Weather in September
September, the first month of the autumn in Santo Domingo, is also a hot month, with an average temperature varying between 31.5°C (88.7°F) and 23.3°C (73.9°F).Temperature
September's climate shows a minor adjustment in average high-temperatures to a still tropical 31.5°C (88.7°F) from August's 32.6°C (90.7°F). The average nighttime temperature lowers to a warm 23.3°C (73.9°F) throughout September.Heat index
The heat index value for September is calculated to be a scorching 44°C (111.2°F). Take heed: Heat exhaustion and heat cramps are anticipated. Heatstroke is a potential outcome of continuous activity.Regarding the heat index, one should be aware it's determined by shaded settings and mild winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are quite important for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. Temperature imbalances caused by excessive heat retention can trigger heat-related maladies.
Humidity
September and October, with an average relative humidity of 83%, are the most humid months.Rainfall
In Santo Domingo, during September, the rain falls for 22 days and regularly aggregates up to 81mm (3.19") of precipitation. Throughout the year, in Santo Domingo, Cuba, there are 187.4 rainfall days, and 558mm (21.97") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 16min.On the first day of the month, sunrise is at 07:03 and sunset at 19:37. On the last day of September, in Santo Domingo, sunrise is at 07:12 and sunset at 19:09 CDT.
Sunshine
In September, the average sunshine is 9h.UV index
The months with the highest UV index in Santo Domingo are April through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 7 in September interprets into the following advice:
Guard against overexposure. Protection from sun-induced harm is essential. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. 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
Average temperature in September
Santo Domingo, Cuba
- Average high temperature in September: 31.5°C
The warmest month (with the highest average high temperature) is August (32.6°C).
The month with the lowest average high temperature is January (25.9°C).
- Average low temperature in September: 23.3°C
The month with the highest average low temperature is August (23.8°C).
The coldest month (with the lowest average low temperature) is January (17.5°C).
Average pressure in September
Santo Domingo, Cuba
- Average pressure in September: 1013.2mbar
The month with the highest atmospheric pressure is January (1018.1mbar).
The month with the lowest atmospheric pressure is October (1012.9mbar).
Average wind speed in September
Santo Domingo, Cuba
- Average wind speed in September: 8.2km/h
The windiest month (with the highest average wind speed) is March (10.7km/h).
The calmest month (with the lowest average wind speed) is June (8.1km/h).
Average humidity in September
Santo Domingo, Cuba
- Average humidity in September: 83%
The months with the highest relative humidity are September and October (83%).
The month with the lowest relative humidity is April (72%).
Average rainfall in September
Santo Domingo, Cuba
- Average rainfall in September: 81mm
The wettest month (with the highest rainfall) is May (84mm).
The driest months (with the least rainfall) are January and March (14mm).
Average rainfall days in September
Santo Domingo, Cuba
- Average rainfall days in September: 22 days
The month with the highest number of rainy days is September (22 days).
The month with the least rainy days is February (7.5 days).
Average daylight in September /
Average sunshine in September
Santo Domingo, Cuba
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 24min).
Average sunshine days in September
Santo Domingo, Cuba
- Average sunshine days in September: 5.5 days
The month with the most sunshine days is March (18.3 days).
The month with the least sunshine days is September (5.5 days).
Average UV index in September
Santo Domingo, Cuba
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, October, November and December (UV index 6).
Average cloud cover in September
Santo Domingo, Cuba
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 37).
The months with the least cloud cover are March, April, July and August (Cloud cover 27).
Average visibility in September
Santo Domingo, Cuba
- Average visibility in September: 8km
The months with the highest visibility are March and April (10km).
The months with the lowest visibility are January, August, September, October, November and December (8km).
