September weather forecast
Warwick, RI

Pawtuxet river flowing beside the ruins of the old cotton mill in Warwick, Rhode Island
Pawtuxet river flowing beside the ruins of the old cotton mill in Warwick, Rhode Island

Weather in September

The first month of the autumn, September, is also an agreeable month in Warwick, Rhode Island, with an average temperature fluctuating between 72.5°F (22.5°C) and 58.1°F (14.5°C).

Temperature

In Warwick, Rhode Island, the average high-temperature in September marginally drops from a warm 79.5°F (26.4°C) in August to an agreeable 72.5°F (22.5°C). In Warwick, Rhode Island, the average low-temperature is 58.1°F (14.5°C).

Humidity

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

Rainfall

The month with the least rainfall is September, when the rain falls for 11.3 days and typically collects 1.26" (32mm) of precipitation.

Snowfall

In Warwick, Rhode Island, snow does not fall in May through October.

Ocean temperature

In Warwick, in September, the average water temperature is 66.7°F (19.3°C).
Note: 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).

Daylight

In Warwick, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:11 am and sunset at 7:19 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:29 pm EDT.

Sunshine

In Warwick, the average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September in Warwick is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 in September transform into the following instructions:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Warwick?

In September, the average high-temperature is 72.5°F (22.5°C), and the average low-temperature is 58.1°F (14.5°C).

What is the average humidity in September in Warwick?

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

What is the driest month in Warwick?

The month with the least rainfall in Warwick, Rhode Island, is September, when the rain falls for 11.3 days and typically collects 1.26" (32mm) of precipitation.

How much does it rain in Warwick in September?

In September, the rain falls for 11.3 days. Throughout September, 1.26" (32mm) of precipitation is accumulated.

When it does not snow in Warwick?

In Warwick, Rhode Island, snow does not fall in May through October.

How cold is the water in September in Warwick?

In Warwick, Rhode Island, the average seawater temperature in September is 66.7°F (19.3°C). For swimming, a surface water temperature of 66.7°F (19.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in September in Warwick?

In September, the average day length in Warwick is 12h and 28min.

What time are sunrise and sunset in September in Warwick?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:19 pm. On the last day of the month, in Warwick, sunrise is at 6:41 am and sunset at 6:29 pm EDT.

How many hours of sunshine does Warwick have in September?

In Warwick, the average sunshine duration in September is 8.7h.

How high is the UV index in September in Warwick?

In September, the average daily maximum UV index in Warwick, Rhode Island, is 4. A UV Index of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Warwick, RI

Average temperature in September - Warwick, RI
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in September: 58.1°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 (24.3°F).

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Average pressure in September
Warwick, RI

Average pressure in September - Warwick, 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
Warwick, RI

Average wind speed in September - Warwick, RI
  • Average wind speed in September: 7.6mph

The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).

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Average humidity in September
Warwick, RI

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

The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).

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Average rainfall in September
Warwick, RI

Average rainfall in September - Warwick, RI
  • Average rainfall in September: 1.26"

The wettest month (with the highest rainfall) is December (3.07").
The driest month (with the least rainfall) is September (1.26").

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Average rainfall days in September
Warwick, RI

Average rainfall days in September - Warwick, RI
  • Average rainfall days in September: 11.3 days

The month with the highest number of rainy days is June (16.1 days).
The month with the least rainy days is January (8.6 days).

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Average snowfall in September
Warwick, RI

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

The month with the highest snowfall is February (2.56").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Warwick, RI

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

The month with the highest number of snowfall days is January (6.5 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
Warwick, RI

Average sea temperature in September - Warwick, 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
Warwick, RI

Average daylight in September / Average sunshine in September - Warwick, RI
  • Average daylight in September: 12h and 28min

The month with the longest days is June (Average daylight: 15h and 10min).
The month with the shortest days is December (Average daylight: 9h and 13min).

  • Average sunshine in September: 8h and 42min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Warwick, RI

Average sunshine days in September - Warwick, RI
  • Average sunshine days in September: 16.6 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is June (12 days).

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Average UV index in September
Warwick, RI

Average UV index in September - Warwick, 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, November and December (UV index 2).

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Average cloud cover in September
Warwick, RI

Average cloud cover in September - Warwick, RI
  • Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).

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Average visibility in September
Warwick, RI

Average visibility in September - Warwick, 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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