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
Weather in September
Temperature
As New Port Richey welcomes September, the average high-temperature records at a still tropical 86.4°F (30.2°C), marking an insignificant deviation from the prior month. During September, New Port Richey observes a consistent average nighttime temperature of 77°F (25°C).Heat index
During September, the heat index is calculated to be a torrid 98.6°F (37°C). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.One should consider that heat index numbers are for shaded settings and light wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'real feel' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to 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. 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. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
In New Port Richey, the average relative humidity in September is 76%.Rainfall
In New Port Richey, in September, during 20.4 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, there are 164 rainfall days, and 26.57" (675mm) of precipitation is accumulated.Daylight
The average length of the day in September in New Port Richey is 12h and 19min.On the first day of the month, sunrise is at 7:09 am and sunset at 7:51 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:17 pm EDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 7 translates into these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What are the months with the highest UV index?
How high is the UV index in September?
Average temperature in September
New Port Richey, FL
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is August (88.2°F).
The month with the lowest average high temperature is January (65.8°F).
- Average low temperature in September: 77°F
The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (53.8°F).
Average pressure in September
New Port Richey, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
New Port Richey, FL
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is March (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
New Port Richey, FL
- Average humidity in September: 76%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January, March and May (73%).
Average rainfall in September
New Port Richey, FL
- Average rainfall in September: 2.95"
The wettest months (with the highest rainfall) are July and August (4.76").
The driest months (with the least rainfall) are March and November (0.91").
Average rainfall days in September
New Port Richey, FL
- Average rainfall days in September: 20.4 days
The month with the highest number of rainy days is July (24.9 days).
The month with the least rainy days is November (6.9 days).
Average daylight in September /
Average sunshine in September
New Port Richey, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is May (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in September
New Port Richey, FL
- Average sunshine days in September: 7.4 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is July (4.3 days).
Average UV index in September
New Port Richey, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
New Port Richey, FL
- Average cloud cover in September: 26
The months with the most cloud cover are January and December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 20).
Average visibility in September
New Port Richey, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
New Port Richey, Florida, USA
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