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 sea temperature 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
In New Shoreham, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's moderately hot 74.8°F (23.8°C) to a pleasant 69.4°F (20.8°C). New Shoreham's nighttime temperature in September consistently rests at a comfortable 63.1°F (17.3°C).Humidity
In September, the average relative humidity is 78%.Rainfall
September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 1.81" (46mm) of precipitation.Snowfall
April through October are months without snowfall.Ocean temperature
In New Shoreham, the average seawater temperature in September is 66.2°F (19°C).Note: For the majority, swimming in water with a temperature of 66.2°F (19°C) is not enjoyable. The difficulty in managing breathing rises as the temperature decreases from 69.8°F (21°C) to 59°F (15°C).
Daylight
In New Shoreham, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 6:13 am and sunset at 7:18 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:29 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
In New Shoreham, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 5 during September leads to these advisories:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow?
What is the ocean temperature in September?
How many hours of daylight does New Shoreham have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
New Shoreham, RI
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in September: 63.1°F
The month with the highest average low temperature is August (69.1°F).
The coldest month (with the lowest average low temperature) is January (30°F).
Average pressure in September
New Shoreham, RI
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
New Shoreham, RI
- Average wind speed in September: 12.4mph
The windiest month (with the highest average wind speed) is January (16.3mph).
The calmest month (with the lowest average wind speed) is July (10.7mph).
Average humidity in September
New Shoreham, RI
- Average humidity in September: 78%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is November (73%).
Average rainfall in September
New Shoreham, RI
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
New Shoreham, RI
- Average rainfall days in September: 12.1 days
The months with the highest number of rainy days are April and July (15.2 days).
The month with the least rainy days is January (9.8 days).
Average snowfall in September
New Shoreham, RI
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
New Shoreham, RI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
New Shoreham, RI
- Average sea temperature in September: 66°F
The best month for swimming (with the highest average sea temperature) is August (70°F).
The coldest months (with the lowest average sea temperature) are February and March (39°F).
Average daylight in September /
Average sunshine in September
New Shoreham, RI
- 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
New Shoreham, RI
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is August (16.2 days).
The month with the least sunshine days is December (12.3 days).
Average UV index in September
New Shoreham, RI
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in September
New Shoreham, RI
- Average cloud cover in September: 31
The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in September
New Shoreham, RI
- 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).
New Shoreham, Rhode Island, USA
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