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 average high-temperature is a still hot 30.8°C (87.4°F) in September, hardly different from the 30.9°C (87.6°F) recorded in August. During September, La Javilla consistently records a temperature low averaging a warm 23.9°C (75°F).Heat index
Throughout September, the heat index is evaluated at a scorching 41°C (105.8°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When heat gain exceeds the level the body can remove, body temperature begins to rise, and heat-related illnesses and disorders may develop.
Humidity
The months with the highest humidity are September through November, with an average relative humidity of 82%.Rainfall
In La Javilla, in September, during 21.1 rainfall days, 66mm (2.6") of precipitation is typically accumulated. Throughout the year, there are 231.1 rainfall days, and 692mm (27.24") of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 14min.On the first day of the month, sunrise is at 06:24 and sunset at 18:53. On the last day of September, sunrise is at 06:29 and sunset at 18:28 AST.
Sunshine
September has the most sunshine of the year, with an average of 9.3h of sunshine.UV index
The months with the highest UV index are April through November, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A typical high UV index of 7 in September suggests the following recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September?
How many hours of daylight does La Javilla have in September?
When are sunrise and sunset in September?
What month has the most sunshine?
How long on average sun shines in September?
What are the months with the highest UV index?
What is the UV index intensity in September?
Average temperature in September
La Javilla, Dominican Republic
- Average high temperature in September: 30.8°C
The warmest month (with the highest average high temperature) is August (30.9°C).
The month with the lowest average high temperature is January (28.2°C).
- Average low temperature in September: 23.9°C
The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is March (21.3°C).
Average pressure in September
La Javilla, Dominican Republic
- Average pressure in September: 1013.3mbar
The month with the highest atmospheric pressure is January (1016.6mbar).
The month with the lowest atmospheric pressure is October (1012.5mbar).
Average wind speed in September
La Javilla, Dominican Republic
- Average wind speed in September: 8.9km/h
The windiest month (with the highest average wind speed) is March (11.1km/h).
The calmest month (with the lowest average wind speed) is October (8.6km/h).
Average humidity in September
La Javilla, Dominican Republic
- Average humidity in September: 82%
The months with the highest relative humidity are September, October and November (82%).
The month with the lowest relative humidity is March (76%).
Average rainfall in September
La Javilla, Dominican Republic
- Average rainfall in September: 66mm
The wettest months (with the highest rainfall) are July and August (105mm).
The driest month (with the least rainfall) is January (20mm).
Average rainfall days in September
La Javilla, Dominican Republic
- Average rainfall days in September: 21.1 days
The month with the highest number of rainy days is July (25 days).
The month with the least rainy days is February (13.1 days).
Average daylight in September /
Average sunshine in September
La Javilla, Dominican Republic
- Average daylight in September: 12h and 1min
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 2min
The month with the most sunshine is September (Average sunshine: 9h and 18min).
The month with the least sunshine is November (Average sunshine: 8h and 12min).
Average sunshine days in September
La Javilla, Dominican Republic
- Average sunshine days in September: 4.9 days
The months with the most sunshine days are January and March (11.7 days).
The month with the least sunshine days is July (2.8 days).
Average UV index in September
La Javilla, Dominican Republic
- Average UV index in September: 7
The months with the highest UV index are April, May, June, July, August, September, October and November (UV index 7).
The months with the lowest UV index are January, February, March and December (UV index 6).
Average cloud cover in September
La Javilla, Dominican Republic
- Average cloud cover in September: 28
The months with the most cloud cover are May and July (Cloud cover 36).
The month with the least cloud cover is September (Cloud cover 28).
Average visibility in September
La Javilla, Dominican Republic
- Average visibility in September: 9km
The months with the highest visibility are February, March and June (10km).
The months with the lowest visibility are January, April, May, July, August, September, October, November and December (9km).
