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 unfolding of September shows an average high-temperature of a still hot 30.3°C (86.5°F), indicating a slight variance from August's 30.6°C (87.1°F). Cerro de Navas temperatures generally rest at a low of 24.4°C (75.9°F) during the September nights.Heat index
For most parts of September, the heat index is evaluated at a fiery hot 38°C (100.4°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.Heat index determinations are made taking into account the shade and light air movements. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.
Humidity
In Cerro de Navas, the average relative humidity in September is 77%.Rainfall
In Cerro de Navas, Dominican Republic, during September, the rain falls for 19.2 days and regularly aggregates up to 68mm (2.68") of precipitation. Throughout the year, in Cerro de Navas, there are 209.8 rainfall days, and 629mm (24.76") of precipitation is accumulated.Daylight
The average length of the day in September in Cerro de Navas, Dominican Republic, is 12h and 15min.On the first day of the month, sunrise is at 06:28 and sunset at 18:58. On the last day of September, in Cerro de Navas, Dominican Republic, sunrise is at 06:34 and sunset at 18:32 AST.
Sunshine
September has the most sunshine of the year, with an average of 9.7h of sunshine.UV index
May through 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 threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Cerro de Navas?
What is the average humidity in September in Cerro de Navas?
How much does it rain in Cerro de Navas in September?
How many hours of daylight does Cerro de Navas have in September?
What time are sunrise and sunset in September in Cerro de Navas?
What month has the most sunshine in Cerro de Navas?
How long on average sun shines in September in Cerro de Navas?
When is the highest UV index in Cerro de Navas?
How high is the UV index in September in Cerro de Navas?
Average temperature in September
Cerro de Navas, Dominican Republic
- Average high temperature in September: 30.3°C
The warmest month (with the highest average high temperature) is August (30.6°C).
The month with the lowest average high temperature is January (26.7°C).
- Average low temperature in September: 24.4°C
The month with the highest average low temperature is August (24.7°C).
The coldest month (with the lowest average low temperature) is March (21.1°C).
Average pressure in September
Cerro de Navas, Dominican Republic
- Average pressure in September: 1013.7mbar
The month with the highest atmospheric pressure is January (1017.3mbar).
The month with the lowest atmospheric pressure is October (1013mbar).
Average wind speed in September
Cerro de Navas, Dominican Republic
- Average wind speed in September: 13.6km/h
The windiest month (with the highest average wind speed) is July (18.1km/h).
The calmest month (with the lowest average wind speed) is October (12km/h).
Average humidity in September
Cerro de Navas, Dominican Republic
- Average humidity in September: 77%
The month with the highest relative humidity is November (80%).
The months with the lowest relative humidity are July and August (76%).
Average rainfall in September
Cerro de Navas, Dominican Republic
- Average rainfall in September: 68mm
The wettest month (with the highest rainfall) is May (90mm).
The driest month (with the least rainfall) is July (29mm).
Average rainfall days in September
Cerro de Navas, Dominican Republic
- Average rainfall days in September: 19.2 days
The month with the highest number of rainy days is October (22.5 days).
The month with the least rainy days is June (13.2 days).
Average daylight in September /
Average sunshine in September
Cerro de Navas, 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 4min
The month with the most sunshine is September (Average sunshine: 9h and 42min).
The month with the least sunshine is March (Average sunshine: 8h and 36min).
Average sunshine days in September
Cerro de Navas, Dominican Republic
- Average sunshine days in September: 6.5 days
The month with the most sunshine days is June (12.8 days).
The month with the least sunshine days is October (4.3 days).
Average UV index in September
Cerro de Navas, Dominican Republic
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 6).
Average cloud cover in September
Cerro de Navas, Dominican Republic
- Average cloud cover in September: 21
The months with the most cloud cover are March and November (Cloud cover 32).
The months with the least cloud cover are July and August (Cloud cover 20).
Average visibility in September
Cerro de Navas, Dominican Republic
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
