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
As August transitions into September, South Plymouth sees a gentle drop in the average high-temperature, transitioning from a warm 75.7°F (24.3°C) to a pleasant 69.1°F (20.6°C). The temperature lowers to an average of 49.3°F (9.6°C) during September nights.Humidity
In South Plymouth, New York, the average relative humidity in September is 81%.Rainfall
The month with the least rainfall in South Plymouth is September, when the rain falls for 11.8 days and typically collects 1.46" (37mm) of precipitation.Snowfall
June through September are months without snowfall in South Plymouth.Daylight
In September, the average length of the day in South Plymouth is 12h and 29min.On the first day of the month, sunrise is at 6:27 am and sunset at 7:36 pm. On the last day of September, in South Plymouth, sunrise is at 6:59 am and sunset at 6:44 pm EDT.
Sunshine
In South Plymouth, the average sunshine in September is 8.3h.UV index
In South Plymouth, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Undertake precautions - It is suggested to shield oneself from sunburn. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Frequently asked questions
What are September temperatures in South Plymouth?
What is the average humidity in September in South Plymouth?
What is the driest month in South Plymouth?
How many days does it rain in September in South Plymouth?
When it does not snow in South Plymouth?
Does it snow in South Plymouth in September?
How many hours of daylight does South Plymouth have in September?
When is the sunrise / sunset in September in South Plymouth?
How many hours of sunshine does South Plymouth have in September?
What is the UV index intensity in September in South Plymouth?
Average temperature in September
South Plymouth, NY
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in September: 49.3°F
The month with the highest average low temperature is July (56.7°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in September
South Plymouth, NY
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
South Plymouth, NY
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is January (10mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
South Plymouth, NY
- Average humidity in September: 81%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, May and July (80%).
Average rainfall in September
South Plymouth, NY
- Average rainfall in September: 1.46"
The wettest months (with the highest rainfall) are May and June (2.44").
The driest month (with the least rainfall) is September (1.46").
Average rainfall days in September
South Plymouth, NY
- Average rainfall days in September: 11.8 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
South Plymouth, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.46").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
South Plymouth, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
South Plymouth, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in September
South Plymouth, NY
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is February (8.7 days).
Average UV index in September
South Plymouth, NY
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
South Plymouth, NY
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 76).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in September
South Plymouth, NY
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
South Plymouth, New York, USA
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