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 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
Arroyo Blanco measures an average high-temperature of a still hot 30.5°C (86.9°F) in September, nearly consistent with the preceding month. An average low-temperature of 21.2°C (70.2°F) is noted during the nights in September.Heat index
September's mean heat index is computed to be a blistering 40°C (104°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.Heat index's context suggests values are appropriate for shady areas and slight breezes. 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 'feels like' or 'real feel', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Rising body temperatures due to excess heat retention could signify impending heat disorders.
Humidity
In Arroyo Blanco, the average relative humidity in September is 82%.Rainfall
In Arroyo Blanco, during September, the rain falls for 25.4 days and regularly aggregates up to 108mm (4.25") of precipitation. In Arroyo Blanco, during the entire year, the rain falls for 284.1 days and collects up to 1006mm (39.61") of precipitation.Daylight
The average length of the day in September is 12h and 15min.On the first day of the month, sunrise is at 06:25 and sunset at 18:55. On the last day of September, sunrise is at 06:31 and sunset at 18:29 AST.
Sunshine
With an average of 9.2h of sunshine, September has the most sunshine of the year.UV index
January through May, July through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: An average UV index of 6 in September transforms into this advice:
Shield from overexposure. Defense against sun-related harm is required. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
How many hours of daylight does Arroyo Blanco have in September?
When is the sunrise / sunset in September?
What month has the most sunshine?
How many hours of sunshine does Arroyo Blanco have in September?
When is the lowest UV index?
How high is the UV index in September?
Average temperature in September
Arroyo Blanco, Dominican Republic
- Average high temperature in September: 30.5°C
The warmest month (with the highest average high temperature) is August (30.8°C).
The month with the lowest average high temperature is January (26.5°C).
- Average low temperature in September: 21.2°C
The month with the highest average low temperature is August (21.6°C).
The coldest month (with the lowest average low temperature) is February (18°C).
Average pressure in September
Arroyo Blanco, Dominican Republic
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is January (1017.2mbar).
The month with the lowest atmospheric pressure is October (1012.9mbar).
Average wind speed in September
Arroyo Blanco, Dominican Republic
- Average wind speed in September: 5.9km/h
The windiest months (with the highest average wind speed) are June and July (7.4km/h).
The calmest month (with the lowest average wind speed) is November (4.8km/h).
Average humidity in September
Arroyo Blanco, Dominican Republic
- Average humidity in September: 82%
The months with the highest relative humidity are November and December (86%).
The months with the lowest relative humidity are June and July (80%).
Average rainfall in September
Arroyo Blanco, Dominican Republic
- Average rainfall in September: 108mm
The wettest month (with the highest rainfall) is May (142mm).
The driest month (with the least rainfall) is February (51mm).
Average rainfall days in September
Arroyo Blanco, Dominican Republic
- Average rainfall days in September: 25.4 days
The month with the highest number of rainy days is May (26.9 days).
The month with the least rainy days is February (20.3 days).
Average daylight in September /
Average sunshine in September
Arroyo Blanco, Dominican Republic
- Average daylight in September: 12h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is November (Average sunshine: 7h and 48min).
Average sunshine days in September
Arroyo Blanco, Dominican Republic
- Average sunshine days in September: 2.1 days
The month with the most sunshine days is January (4.8 days).
The month with the least sunshine days is October (1.7 days).
Average UV index in September
Arroyo Blanco, Dominican Republic
- Average UV index in September: 6
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, March, April, May, July, August, September, October, November and December (UV index 6).
Average cloud cover in September
Arroyo Blanco, Dominican Republic
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is September (Cloud cover 34).
Average visibility in September
Arroyo Blanco, Dominican Republic
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (8km).
The months with the lowest visibility are January, November and December (7km).
