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
At the start of September, Salem's average high-temperature reaches a still hot 87.4°F (30.8°C), subtly different from the preceding month. Salem records a steady low-temperature average of 71.8°F (22.1°C) during September.Heat index
Throughout September, the heat index is computed to be a torrid 102.2°F (39°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. When relative humidity increases, the body's capacity to evaporate heat decreases, leading to a heightened sense of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
The months with the highest humidity in Salem are August, September and December, with an average relative humidity of 77%.Rainfall
In Salem, in September, during 18.3 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. Throughout the year, there are 168.6 rainfall days, and 32.95" (837mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 20min.On the first day of September in Salem, sunrise is at 7:11 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 7:19 pm EDT.
Sunshine
In Salem, the average sunshine in September is 8.7h.UV index
The average daily maximum UV index in September in Salem is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in Salem in September?
What are the most humid months in Salem?
What is the average humidity in September in Salem?
How much does it rain in Salem in September?
How many hours of daylight does Salem have in September?
What time are sunrise and sunset in September in Salem?
How long on average sun shines in September in Salem?
What is the UV index reading in September in Salem?
Average temperature in September
Salem, FL
- Average high temperature in September: 87.4°F
The warmest months (with the highest average high temperature) are July and August (90.3°F).
The month with the lowest average high temperature is January (62.2°F).
- Average low temperature in September: 71.8°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (45.5°F).
Average pressure in September
Salem, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Salem, FL
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is January (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity in September
Salem, FL
- Average humidity in September: 77%
The months with the highest relative humidity are August, September and December (77%).
The months with the lowest relative humidity are January and May (72%).
Average rainfall in September
Salem, FL
- Average rainfall in September: 3.27"
The wettest month (with the highest rainfall) is August (5.35").
The driest month (with the least rainfall) is November (1.02").
Average rainfall days in September
Salem, FL
- Average rainfall days in September: 18.3 days
The month with the highest number of rainy days is August (24.8 days).
The month with the least rainy days is November (6.8 days).
Average daylight in September /
Average sunshine in September
Salem, 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 4min
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
Salem, FL
- Average sunshine days in September: 9.5 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is August (3.8 days).
Average UV index in September
Salem, 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 3).
Average cloud cover in September
Salem, FL
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 24).
Average visibility in September
Salem, 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).
Salem, Florida, USA
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