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 commencement of September introduces an average high-temperature of a still hot 86.4°F (30.2°C), closely mirroring the preceding month. The average low-temperature during September nights is a moderately hot 74.3°F (23.5°C).Heat index
September's heat index is estimated at a sweltering 98.6°F (37°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is the outcome of merging air's temperature and its humidity metrics. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Perspiring is a crucial mechanism for the human body, allowing it to release excessive warmth through evaporating sweat. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In September, the average relative humidity is 75%.Rainfall
In September, the rain falls for 19.2 days. Throughout September, 3.98" (101mm) of precipitation is accumulated. Throughout the year, there are 183.1 rainfall days, and 42.83" (1088mm) of precipitation is accumulated.Snowfall
In Pass Christian, Mississippi, snow does not fall in February through December.Daylight
In September, the average length of the day is 12h and 20min.On the first day of September, sunrise is at 6:34 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:43 pm CDT.
Sunshine
In September, the average sunshine is 10.1h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.Note: In September, a daily maximum UV index of 6 leads to the following instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Pass Christian have in September?
What is the UV index intensity in September?
Average temperature in September
Pass Christian, MS
- Average high temperature in September: 86.4°F
The warmest month (with the highest average high temperature) is August (89.4°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in September: 74.3°F
The month with the highest average low temperature is August (77.9°F).
The coldest month (with the lowest average low temperature) is January (45.9°F).
Average pressure in September
Pass Christian, MS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in September
Pass Christian, MS
- Average wind speed in September: 6.3mph
The windiest month (with the highest average wind speed) is April (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.1mph).
Average humidity in September
Pass Christian, MS
- Average humidity in September: 75%
The month with the highest relative humidity is December (79%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Pass Christian, MS
- Average rainfall in September: 3.98"
The wettest month (with the highest rainfall) is August (6.73").
The driest month (with the least rainfall) is November (2.05").
Average rainfall days in September
Pass Christian, MS
- Average rainfall days in September: 19.2 days
The months with the highest number of rainy days are July and August (23.8 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in September
Pass Christian, MS
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.31").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Pass Christian, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.3 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
Pass Christian, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 10h and 1min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in September
Pass Christian, MS
- Average sunshine days in September: 8.6 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (5 days).
Average UV index in September
Pass Christian, MS
- 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, November and December (UV index 4).
Average cloud cover in September
Pass Christian, MS
- Average cloud cover in September: 24
The month with the most cloud cover is December (Cloud cover 44).
The month with the least cloud cover is October (Cloud cover 23).
Average visibility in September
Pass Christian, MS
- 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).
Pass Christian, Mississippi, USA
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