September weather forecast and climate
Providence, RI

The city of Providence in Rhode Island, reflected in the water, with a beautiful skyscape on a warm sunny day
The city of Providence in Rhode Island, reflected in the water, with a beautiful skyscape on a warm sunny day

What is the temperature in September in Providence?

The average high-temperature, in September, in Providence, Rhode Island, is 74.1°F (23.4°C), while the average low-temperature is 55.2°F (12.9°C).

How many days does it rain in September in Providence?

In Providence, Rhode Island, in September, it is raining for 8.7 days, with typically 3.9" (99.6mm) of accumulated precipitation.

What is the sea water temperature in September in Providence?

The average seawater temperature, in September, in Providence, 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).
Average temperature in September - Providence, RI
  • Average high temperature in September: 23.4°C

The warmest month (with the highest average high temperature) is July (28.2°C).
The month with the lowest average high temperature is January (3°C).

  • Average low temperature in September: 12.9°C

The month with the highest average low temperature is July (17.9°C).
The coldest month (with the lowest average low temperature) is January (-6.1°C).

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: 99.6mm

The wettest month (with the highest rainfall) is March (127.3mm).
Driest months (with the lowest rainfall) are February and July (83.6mm).

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: 0mm

The month with the highest snowfall is January (228.6mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

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: 19.3°C

The best month for swimming (with the highest average sea temperature) is August (20.7°C).
The coldest month (with the lowest average sea temperature) is February (3.4°C).

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).

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