September weather forecast
Weekapaug, RI

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Weather in September

The first month of the autumn, September, is still a pleasant month in Weekapaug, Rhode Island, with an average temperature varying between 60.4°F (15.8°C) and 71.2°F (21.8°C).

Temperature

In September, the average high-temperature marginally decreases from a moderately hot 77.5°F (25.3°C) in August to an agreeable 71.2°F (21.8°C). Nighttime temperatures in September average to a moderate 60.4°F (15.8°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

September is the month with the least rainfall. Rain falls for 13 days and accumulates 1.81" (46mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of the month, sunrise is at 6:14 am and sunset at 7:19 pm. On the last day of September, sunrise is at 6:43 am and sunset at 6:30 pm EDT.

Sunshine

The average sunshine in September is 8.9h.

UV index

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A daily high UV index of 4 in September leads to these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Updated: Jun 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

The high-temperature during September is 71.2°F (21.8°C) and the low-temperature is 60.4°F (15.8°C).

What is the average humidity in September?

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

What is the driest month?

September is the month with the least rainfall. Rain falls for 13 days and accumulates 1.81" (46mm) of precipitation.

How many days does it rain in September?

In Weekapaug, in September, it is raining for 13 days, with typically 1.81" (46mm) of accumulated precipitation.

When it does not snow?

In Weekapaug, snow does not fall in May through October.

How many hours of daylight does Weekapaug have in September?

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

When is the sunrise / sunset in September?

In September, on the first day of the month, sunrise is at 6:14 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:30 pm EDT.

How many hours of sunshine does Weekapaug have in September?

The average sunshine duration in September is 8.9h.

How high is the UV index in September?

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a medium hazard to health 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
Weekapaug, RI

Average temperature in September - Weekapaug, RI
  • Average high temperature in September: 71.2°F

The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (36.7°F).

  • Average low temperature in September: 60.4°F

The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in September
Weekapaug, RI

Average pressure in September - Weekapaug, RI
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Weekapaug, RI

Average wind speed in September - Weekapaug, RI
  • Average wind speed in September: 9.4mph

The windiest month (with the highest average wind speed) is January (12.5mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).

Average humidity in September
Weekapaug, RI

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

The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).

Average rainfall in September
Weekapaug, RI

Average rainfall in September - Weekapaug, RI
  • Average rainfall in September: 1.81"

The wettest month (with the highest rainfall) is December (3.39").
The driest month (with the least rainfall) is September (1.81").

Average rainfall days in September
Weekapaug, RI

Average rainfall days in September - Weekapaug, RI
  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in September
Weekapaug, RI

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

The month with the highest snowfall is March (1.85").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Weekapaug, RI

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

The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Weekapaug, 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 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).

Average sunshine days in September
Weekapaug, RI

Average sunshine days in September - Weekapaug, RI
  • Average sunshine days in September: 15 days

The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is July (11 days).

Average UV index in September
Weekapaug, RI

Average UV index in September - Weekapaug, 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).

Average cloud cover in September
Weekapaug, RI

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

The months with the most cloud cover are March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in September
Weekapaug, RI

Average visibility in September - Weekapaug, 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).

Weekapaug, Rhode Island, USA

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