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 snowfall 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
With September's arrival, Nashua notes an average high-temperature of a still tropical 88.5°F (31.4°C), closely following the trend of the preceding month. September is noted for a mean low-temperature of 73°F (22.8°C).Heat index
In September, the average heat index is evaluated at a blistering 105.8°F (41°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Heat index determinations are made taking into account the shade and light air movements. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.
Humidity
August, September and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In Nashua, during September, the rain falls for 15.2 days and regularly aggregates up to 1.18" (30mm) of precipitation. Throughout the year, there are 138.3 rainfall days, and 12.76" (324mm) of precipitation is accumulated.Snowfall
In Nashua, snow does not fall in February through December.Daylight
In Nashua, the average length of the day in September is 12h and 20min.On the first day of September, sunrise is at 7:04 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:19 am and sunset at 7:13 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Inhibit overexposure. Warding off sun damage is of utmost importance. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What are the most humid months?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Nashua have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September in Nashua?
How high is the UV index in September?
Average temperature in September
Nashua, FL
- Average high temperature in September: 88.5°F
The warmest month (with the highest average high temperature) is August (91.9°F).
The month with the lowest average high temperature is January (65.8°F).
- Average low temperature in September: 73°F
The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (48.2°F).
Average pressure in September
Nashua, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Nashua, FL
- Average wind speed in September: 4.6mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest months (with the lowest average wind speed) are July and August (4.2mph).
Average humidity in September
Nashua, FL
- Average humidity in September: 77%
The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Nashua, FL
- Average rainfall in September: 1.18"
The wettest month (with the highest rainfall) is July (2.09").
The driest month (with the least rainfall) is March (0.47").
Average rainfall days in September
Nashua, FL
- Average rainfall days in September: 15.2 days
The month with the highest number of rainy days is August (18.8 days).
The month with the least rainy days is November (6.7 days).
Average snowfall days in September
Nashua, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Nashua, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 54min).
Average sunshine days in September
Nashua, FL
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in September
Nashua, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).
Average cloud cover in September
Nashua, FL
- Average cloud cover in September: 33
The month with the most cloud cover is December (Cloud cover 40).
The months with the least cloud cover are May and July (Cloud cover 30).
Average visibility in September
Nashua, 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).
Nashua, Florida, USA
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