Providence
Rhode Island, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Providence, RI

The city of Providence, Rhode Island, reflected in the water, with a beautiful skyscape on a warm sunny day
The city of Providence, Rhode Island, reflected in the water, with a beautiful skyscape on a warm sunny day
September, the first month of the autumn, in Providence, is also a moderately hot month, with average temperature ranging between min 55.2°F (12.9°C) and max 74.1°F (23.4°C).

Temperature

In September, the average high-temperature slightly decreases, from a moderately hot 81.3°F (27.4°C) in August, to a still warm 74.1°F (23.4°C). The average low-temperature, in Providence, is 55.2°F (12.9°C).

Humidity

September is the most humid month in Providence, with an average relative humidity of 73%.

Rainfall

In Providence, during 8.7 rainfall days, 3.9" (99.6mm) of precipitation is typically accumulated. In Providence, Rhode Island, during the entire year, the rain falls for 124.9 days and collects up to 47.2" (1198.5mm) of precipitation.

Snowfall

Throughout the year, 33.8" (858.5mm) of snow is accumulated.

Ocean temperature

In Providence, the average water temperature 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).

Daylight

The average length of the day in September is 12.5h.

Sunshine

In September, the average sunshine in Providence is 7.8h.

UV index

The average daily maximum UV index in Providence is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to the UV radiation for the ordinary person.
The average daily UV index of 6 in September transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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.

What is the temperature in September in Providence?

In Providence, in September, the average high-temperature is 74.1°F (23.4°C), and the average low-temperature is 55.2°F (12.9°C).

What is the most humid month in Providence?

September is the most humid month, with an average relative humidity of 73%.

What is the average humidity in September in Providence?

In September, the average relative humidity in Providence is 73%.

How much does it rain in Providence in September?

In Providence, during September, the rain falls for 8.7 days and regularly aggregates up to 3.9" (99.6mm) of precipitation.

What is the ocean temperature in September in Providence?

In Providence, Rhode Island, in September, the average water temperature is 66.7°F (19.3°C). For most, swimming in 66.7°F (19.3°C) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 69.8°F (21°C) to 59°F (15°C).

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

In September, the average length of the day is 12.5h.

How long on average sun shines in September in Providence?

In September, the average sunshine is 7.8h.

How high is the UV index in September in Providence?

In Providence, Rhode Island, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to the UV radiation.
Average temperature in September - Providence, RI
  • Average high temperature in September: 74.2°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (37.4°F).

  • Average low temperature in September: 55.3°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).

Average humidity in September - Providence, RI
  • Average humidity in September: 73%

The month with the highest relative humidity is September (73%).
The month with the lowest relative humidity is April (61.4%).

Average rainfall in September - Providence, RI
  • Average rainfall in September: 3.9"

The wettest month (with the highest rainfall) is March (5").
Driest months (with the lowest rainfall) are February and July (3.3").

Average rainfall days in September - Providence, RI
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is May (12 days).
The month with the lowest number of rainy days is September (8.7 days).

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

The month with the highest snowfall is January (9").
Months with the lowest snowfall are May, June, July, August, September and October (0").

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

The month with the highest number of snowfall days is January (5.7 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in September - Providence, 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).

Average daylight in September / Average sunshine in September - Providence, RI
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.2h).
The month with shortest days is December (Average daylight: 9.2h).

  • Average sunshine in September: 7.8h

The month with most sunshine is July (Average sunshine: 9.4h).
The month with least sunshine is December (Average sunshine: 4.8h).

Average UV index in September - Providence, RI
  • Average UV index in September: 6

Months with the highest UV index are June, July and August (UV index 8).
Months with the lowest UV index are January and December (UV index 1).