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 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
The start of September signals a gentle decrease in the average high-temperature, transitioning from a tropical 88.7°F (31.5°C) in August to a warm 83.3°F (28.5°C). Throughout September, the temperature falls to an average low of 63.1°F (17.3°C).Heat index
The heat index value for September is evaluated at a hot 89.6°F (32°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', blends air temperature and moisture content to represent the felt temperature to humans. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Humidity
In September, the average relative humidity is 75%.Rainfall
In Vigo, in September, during 12 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Vigo, during the entire year, the rain falls for 155 days and collects up to 25.47" (647mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In Vigo, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 6:16 am and sunset at 7:07 pm. On the last day of September, sunrise is at 6:36 am and sunset at 6:27 pm CDT.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Vigo is 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 5 during September morphs into the following directions:
Ensure safety - Recommendations to avert sunburn are presented. It's recommended to limit sun exposure when its radiation is at its peak during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
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 much does it rain in September?
When it does not snow?
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 is the UV index intensity in September?
Average temperature in September
Vigo, AL
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is July (89.2°F).
The month with the lowest average high temperature is January (49.8°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).
Average pressure in September
Vigo, AL
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Vigo, AL
- Average wind speed in September: 4.5mph
The windiest month (with the highest average wind speed) is February (7.2mph).
The calmest month (with the lowest average wind speed) is August (4mph).
Average humidity in September
Vigo, AL
- Average humidity in September: 75%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Vigo, AL
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is August (2.56").
The driest month (with the least rainfall) is October (1.38").
Average rainfall days in September
Vigo, AL
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is November (7.9 days).
Average snowfall in September
Vigo, AL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Vigo, AL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Vigo, AL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are June and July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in September
Vigo, AL
- Average sunshine days in September: 15.9 days
The months with the most sunshine days are October and November (20.1 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Vigo, AL
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
Vigo, AL
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Vigo, AL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Vigo, Alabama, USA
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