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
September brings a slight decrease in temperature, down from a warm 78.6°F (25.9°C) in August to an agreeable 72.1°F (22.3°C). Throughout September, the average low-temperature dips to a cool 52.2°F (11.2°C).Humidity
In September, the average relative humidity is 80%.Rainfall
In Mayport, in September, during 12.7 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. Throughout the year, there are 150.5 rainfall days, and 22.05" (560mm) of precipitation is accumulated.Snowfall
In Mayport, snow does not fall in June through September.Daylight
The average length of the day in September in Mayport is 12h and 28min.On the first day of September in Mayport, Pennsylvania, sunrise is at 6:44 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:00 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Mayport, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 3 during September translates into the following directions:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
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 reading in September?
Average temperature in September
Mayport, PA
- Average high temperature in September: 72.1°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in September: 52.2°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in September
Mayport, PA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Mayport, PA
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Mayport, PA
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are June, July and August (78%).
Average rainfall in September
Mayport, PA
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is April (2.56").
The driest month (with the least rainfall) is November (1.26").
Average rainfall days in September
Mayport, PA
- Average rainfall days in September: 12.7 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.2 days).
Average snowfall in September
Mayport, PA
- Average snowfall in September: 0"
The month with the highest snowfall is February (5.51").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Mayport, PA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (18 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Mayport, PA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 30min).
Average sunshine days in September
Mayport, PA
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is November (15.3 days).
The month with the least sunshine days is February (8.1 days).
Average UV index in September
Mayport, PA
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Mayport, PA
- Average cloud cover in September: 43
The month with the most cloud cover is January (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in September
Mayport, PA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The month with the lowest visibility is February (4mi).
Mayport, Pennsylvania, USA
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