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
The advent of September signifies a minor shift to an average high-temperature of a still hot 30.5°C (86.9°F), aligning closely with August. In Jima Arriba, the September nights cool down to an average low of 21.2°C (70.2°F).Heat index
The heat index value during September is evaluated at an extremely hot 40°C (104°F). Exercise special caution, heat exhaustion and heat cramps are probable. Prolonged activity may induce heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', combines both the air temperature and the humidity level to give a perceived human temperature. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are largely significant for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
The average relative humidity in September is 82%.Rainfall
In Jima Arriba, during September, the rain falls for 25.4 days and regularly aggregates up to 108mm (4.25") of precipitation. Throughout the year, there are 284.1 rainfall days, and 1006mm (39.61") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 14min.On the first day of September, sunrise is at 06:26 and sunset at 18:55. On the last day of the month, sunrise is at 06:31 and sunset at 18:30 AST.
Sunshine
With an average of 9.2h of sunshine, September has the most sunshine of the year in Jima Arriba.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 estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index of 6 during September translates into these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. 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. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does Jima Arriba have in September?
When are sunrise and sunset in September in Jima Arriba?
What month has the most sunshine?
How many hours of sunshine does Jima Arriba have in September?
What are the months with the lowest UV index?
What is the UV index reading in September?
Average temperature in September
Jima Arriba, 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
Jima Arriba, 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
Jima Arriba, 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
Jima Arriba, 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
Jima Arriba, 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
Jima Arriba, 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
Jima Arriba, 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
Jima Arriba, 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
Jima Arriba, 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
Jima Arriba, 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
Jima Arriba, 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).
