September weather forecastHerrera, Dominican Republic
September weather for Herrera, Dominican Republic: The first month of the autumn, September, is still a tropical month in Herrera, Dominican Republic, with an average temperature fluctuating between 30.3°C (86.5°F) and 23.2°C (73.8°F). The months with the highest humidity in Herrera are September through December, with an average relative humidity of 81%.
September
Weather in September
The first month of the autumn, September, is still a tropical month in Herrera, Dominican Republic, with an average temperature fluctuating between 30.3°C (86.5°F) and 23.2°C (73.8°F).Temperature
Herrera records an average high-temperature of a still hot 30.3°C (86.5°F) as September arrives, nearly mirroring the previous month's climate. During the nights in September, the temperature averages to a moderately hot 23.2°C (73.8°F).Heat index
The heat index for September is estimated at a torrid 39°C (102.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.Keep in mind the heat index values are meant for areas in shade and with light wind. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
The months with the highest humidity are September through December, with an average relative humidity of 81%.Rainfall
In September, in Herrera, the rain falls for 15.8 days. Throughout September, 47mm (1.85") of precipitation is accumulated. Throughout the year, in Herrera, there are 168.6 rainfall days, and 443mm (17.44") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 14min.On the first day of September in Herrera, sunrise is at 06:25 and sunset at 18:53. On the last day of the month, sunrise is at 06:30 and sunset at 18:28 AST.
Sunshine
September and November, with an average of 9.4h of sunshine, are months with the most sunshine.UV index
May through July, September and October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 7 during September leads to these instructions:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Herrera, 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
Herrera, 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
Herrera, 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
Herrera, 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
Herrera, 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
Herrera, 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
Herrera, 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
Herrera, 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
Herrera, 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
Herrera, 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
Herrera, 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).
