September weather forecastHatillo, Dominican Republic
September
Weather in September
September, the first month of the autumn in Hatillo, is also a hot month, with an average temperature fluctuating between 30.3°C (86.5°F) and 23.2°C (73.8°F).Temperature
The initiation of September records an average high-temperature of a still tropical 30.3°C (86.5°F), displaying a near consistency with the previous month. In Hatillo, September is marked by an average low-temperature of 23.2°C (73.8°F).Heat index
September's average heat index is evaluated at a sweltering 39°C (102.2°F). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.One should be cognizant that the heat index values are tailored for shaded spots and mild winds. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'feels like' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
The months with the highest humidity are September through December, with an average relative humidity of 81%.Rainfall
In Hatillo, in September, during 15.8 rainfall days, 47mm (1.85") of precipitation is typically accumulated. Throughout the year, there are 168.6 rainfall days, and 443mm (17.44") of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 14min.On the first day of the month, sunrise is at 06:27 and sunset at 18:56. On the last day of September, in Hatillo, Dominican Republic, sunrise is at 06:32 and sunset at 18:31 AST.
Sunshine
September and November, with an average of 9.4h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index in Hatillo are May through July, September and October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 7 during September leads to these instructions:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete 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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hatillo, Dominican Republic
- Average high temperature in September: 30.3°C
The warmest month (with the highest average high temperature) is August (30.5°C).
The month with the lowest average high temperature is January (27.6°C).
- Average low temperature in September: 23.2°C
The month with the highest average low temperature is August (23.7°C).
The coldest month (with the lowest average low temperature) is February (20.2°C).
Average pressure in September
Hatillo, Dominican Republic
- Average pressure in September: 1013.4mbar
The month with the highest atmospheric pressure is January (1016.7mbar).
The month with the lowest atmospheric pressure is October (1012.6mbar).
Average wind speed in September
Hatillo, Dominican Republic
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is February (11.2km/h).
The calmest month (with the lowest average wind speed) is October (8.5km/h).
Average humidity in September
Hatillo, Dominican Republic
- Average humidity in September: 81%
The months with the highest relative humidity are September, October, November and December (81%).
The month with the lowest relative humidity is March (77%).
Average rainfall in September
Hatillo, Dominican Republic
- Average rainfall in September: 47mm
The wettest month (with the highest rainfall) is August (86mm).
The driest month (with the least rainfall) is January (9mm).
Average rainfall days in September
Hatillo, Dominican Republic
- Average rainfall days in September: 15.8 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (7.3 days).
Average daylight in September /
Average sunshine in September
Hatillo, Dominican Republic
- Average daylight in September: 12h and 12min
The month with the longest days is June (Average daylight: 13h and 12min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 24min
The months with the most sunshine are September and November (Average sunshine: 9h and 24min).
The month with the least sunshine is May (Average sunshine: 8h and 42min).
Average sunshine days in September
Hatillo, Dominican Republic
- Average sunshine days in September: 11.9 days
The month with the most sunshine days is January (22.7 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in September
Hatillo, Dominican Republic
- Average UV index in September: 7
The months with the highest UV index are May, June, July, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, August, November and December (UV index 6).
Average cloud cover in September
Hatillo, Dominican Republic
- Average cloud cover in September: 25
The month with the most cloud cover is May (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility in September
Hatillo, Dominican Republic
- Average visibility in September: 9km
The months with the highest visibility are February, March, November and December (10km).
The months with the lowest visibility are January, April, May, June, July, August, September and October (9km).
