September weather forecast
Warren, RI

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Weather in September

September witnesses a transition from summer to fall in Warren. There is a noticeable drop in temperature and daylight hours. As leaves gradually change color, the town begins to wear an array of reds, yellows, and browns. The mild temperatures make it a perfect month for long walks and outdoor activities. September's autumn delight is a sight to behold in Warren.

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a warm 78.6°F (25.9°C) in August to a pleasant 72.1°F (22.3°C). In Warren, an average low-temperature of 58.8°F (14.9°C) is recorded during September nights.

Humidity

In September, the average relative humidity in Warren is 78%.

Rainfall

The month with the least rainfall in Warren is September, when the rain falls for 11.2 days and typically collects 1.06" (27mm) of precipitation.

Snowfall

June through October are months without snowfall.

Ocean temperature

In Warren, the average seawater temperature in September is 66.7°F (19.3°C).
Note: Swimming is not enjoyable for most people in water that is 66.7°F (19.3°C). As the temperature descends from 69.8°F (21°C) to 59°F (15°C), breathing control becomes harder.

Daylight

In Warren, the average length of the day in September is 12h and 28min.
On the first day of September in Warren, sunrise is at 6:11 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:41 am and sunset at 6:28 pm EDT.

Sunshine

In September, the average sunshine in Warren, Rhode Island, is 8.8h.

UV index

In Warren, Rhode Island, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.
Note: In September, the maximum UV index of 4 suggests this advice:
Guard yourself - Avoiding sunburn is suggested. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
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Frequently asked questions

What are September temperatures in Warren?

The high-temperature, in September, in Warren, is 72.1°F (22.3°C), while the low-temperature averages to 58.8°F (14.9°C).

What is the average humidity in September in Warren?

In September, the average relative humidity in Warren is 78%.

What is the driest month in Warren?

September is the month with the least rainfall in Warren, Rhode Island. Rain falls for 11.2 days and accumulates 1.06" (27mm) of precipitation.

How much does it rain in Warren in September?

In Warren, Rhode Island, in September, it is raining for 11.2 days, with typically 1.06" (27mm) of accumulated precipitation.

When it does not snow in Warren?

June through October are months without snowfall in Warren, Rhode Island.

What is the ocean temperature in September in Warren?

In Warren, the average seawater temperature in September is 66.7°F (19.3°C). Swimming in 66.7°F (19.3°C) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 69.8°F (21°C).

How many hours of daylight does Warren have in September?

The average day length in September is 12h and 28min.

When is the sunrise / sunset in September in Warren?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:18 pm. On the last day of the month, in Warren, Rhode Island, sunrise is at 6:41 am and sunset at 6:28 pm EDT.

How many hours of sunshine does Warren have in September?

In Warren, Rhode Island, the average sunshine duration in September is 8.8h.

What is the UV index reading in September in Warren?

In September, the average daily maximum UV index in Warren is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Warren, RI

Average temperature in September - Warren, RI
  • Average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in September: 58.8°F

The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25.2°F).

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Average pressure in September
Warren, RI

Average pressure in September - Warren, RI
  • Average pressure in September: 30.05"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).

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Average wind speed in September
Warren, RI

Average wind speed in September - Warren, RI
  • Average wind speed in September: 8.2mph

The windiest months (with the highest average wind speed) are January, February and March (10.9mph).
The calmest month (with the lowest average wind speed) is August (7.3mph).

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Average humidity in September
Warren, RI

Average humidity in September - Warren, RI
  • Average humidity in September: 78%

The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is April (73%).

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Average rainfall in September
Warren, RI

Average rainfall in September - Warren, RI
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is October (1.97").
The driest month (with the least rainfall) is September (1.06").

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Average rainfall days in September
Warren, RI

Average rainfall days in September - Warren, RI
  • Average rainfall days in September: 11.2 days

The month with the highest number of rainy days is July (15 days).
The month with the least rainy days is February (6.9 days).

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Average snowfall in September
Warren, RI

Average snowfall in September - Warren, RI
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.13").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Warren, RI

Average snowfall days in September - Warren, RI
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average sea temperature in September
Warren, RI

Average sea temperature in September - Warren, RI
  • Average sea temperature in September: 66.7°F

The best month for swimming (with the highest average sea temperature) is August (69.3°F).
The coldest month (with the lowest average sea temperature) is February (38.1°F).

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Average daylight in September /
Average sunshine in September
Warren, RI

Average daylight in September / Average sunshine in September - Warren, RI
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).

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Average sunshine days in September
Warren, RI

Average sunshine days in September - Warren, RI
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is November (19.2 days).
The month with the least sunshine days is April (13.6 days).

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Average UV index in September
Warren, RI

Average UV index in September - Warren, RI
  • Average UV index in September: 4

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).

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Average cloud cover in September
Warren, RI

Average cloud cover in September - Warren, RI
  • Average cloud cover in September: 32

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in September
Warren, RI

Average visibility in September - Warren, 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).

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Warren, Rhode Island, USA

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