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
Killarney records an average high-temperature of a still hot 88.7°F (31.5°C) as September arrives, nearly mirroring the previous month's climate. An average low-temperature of 74.1°F (23.4°C) is expected during September.Heat index
September's average heat index is calculated to be a blisteringly hot 107.6°F (42°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Factoring in the heat index, values are geared towards shaded areas with light breezes. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Potential thermal conditions emerge as the body's heat gain outpaces its cooling mechanisms.
Humidity
The most humid month in Killarney is September, with an average relative humidity of 78%.Rainfall
In Killarney, Florida, in September, it is raining for 24.6 days, with typically 4.72" (120mm) of accumulated precipitation. In Killarney, during the entire year, the rain falls for 205.7 days and collects up to 41.1" (1044mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
In Killarney, the average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 7:05 am and sunset at 7:47 pm. On the last day of September, in Killarney, sunrise is at 7:19 am and sunset at 7:13 pm EDT.
Sunshine
In September, the average sunshine in Killarney is 8.6h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 6 in September suggests the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Frequently asked questions
How hot is September in Killarney?
What is the most humid month in Killarney?
What is the average humidity in September in Killarney?
How much does it rain in Killarney in September?
When it does not snow in Killarney?
How many hours of daylight does Killarney have in September?
When are sunrise and sunset in September in Killarney?
How many hours of sunshine does Killarney have in September?
What is the UV index intensity in September in Killarney?
Average temperature in September
Killarney, FL
- Average high temperature in September: 88.7°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (67.6°F).
- Average low temperature in September: 74.1°F
The month with the highest average low temperature is August (76.5°F).
The coldest month (with the lowest average low temperature) is January (50.4°F).
Average pressure in September
Killarney, 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
Killarney, FL
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in September
Killarney, FL
- Average humidity in September: 78%
The month with the highest relative humidity is September (78%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Killarney, FL
- Average rainfall in September: 4.72"
The wettest month (with the highest rainfall) is July (6.81").
The driest months (with the least rainfall) are January and March (1.5").
Average rainfall days in September
Killarney, FL
- Average rainfall days in September: 24.6 days
The month with the highest number of rainy days is August (28.4 days).
The month with the least rainy days is January (9.8 days).
Average snowfall days in September
Killarney, 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
Killarney, 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: 8h and 4min
The months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Killarney, FL
- Average sunshine days in September: 3.7 days
The month with the most sunshine days is January (18.1 days).
The month with the least sunshine days is August (1.3 days).
Average UV index in September
Killarney, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Killarney, FL
- Average cloud cover in September: 33
The months with the most cloud cover are January and February (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in September
Killarney, 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).
Killarney, Florida, USA
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