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Rhode Island weather in September

Thinking about venturing to Rhode Island this September and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:

What is the weather like in Rhode Island in September?

Rhode Island is a region in the United States of America. September in Rhode Island generally has temperatures that range from pleasant to warm, with precipitation levels ranging from moderate to high. During September, summer is in full swing.

During the day the temperature is pleasant in New Shoreham at 22°C and warm in Bristol at 25°C. As night falls, temperatures generally drop to 14°C in Bristol and 16°C in New Shoreham.

In September, precipitation varies across different areas. From moderate rainfall in New Shoreham with an average of 74 mm to high rainfall in West Greenwich with 119 mm. The city Middletown usually sees around 233 hours of sunlight, indicating many sunny days.

To learn more about the conditions in specific areas of Rhode Island in September, check out the map below. For more details on the yearly weather, visit our Rhode Island climate page.

Where to go in Rhode Island in September

Find the average weather conditions in September for the most popular destinations in Rhode Island on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Rhode Island

What is the weather like in September for the 5 most popular destinations in Rhode Island?

Average weather in Middletown

In September Middletown generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 14°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Middletown
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
26°C 
18°C 
260 hours 
79 mm 
8 days 
23°C 
14°C 
233 hours 
86 mm 
7 days 
October   >> October
>>  
17°C 
9°C 
208 hours 
107 mm 
10 days 
Climate in Middletown

Average weather in Warwick

In September Warwick generally has high temperatures with maximum daytime temperatures around 24°C, minimum nighttime temperatures around 14°C and high monthly rainfall. So on average the conditions are pleasant that month.

Warwick
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
28°C 
18°C 
260 hours 
89 mm 
9 days 
24°C 
14°C 
233 hours 
107 mm 
8 days 
October   >> October
>>  
18°C 
8°C 
208 hours 
115 mm 
13 days 
Climate in Warwick

Average weather in New Shoreham

In September New Shoreham generally has pleasant temperatures with maximum daytime temperatures around 22°C, minimum nighttime temperatures around 16°C and moderate monthly rainfall. So on average the conditions are perfect that month.

New Shoreham
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
25°C 
19°C 
260 hours 
77 mm 
9 days 
22°C 
16°C 
233 hours 
74 mm 
8 days 
October   >> October
>>  
17°C 
11°C 
208 hours 
109 mm 
12 days 
Climate in New Shoreham

Average weather in Narragansett

In September Narragansett generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 14°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Narragansett
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
27°C 
17°C 
260 hours 
82 mm 
10 days 
23°C 
14°C 
233 hours 
91 mm 
8 days 
October   >> October
>>  
17°C 
8°C 
208 hours 
110 mm 
12 days 
Climate in Narragansett

Average weather in Westerly

In September Westerly generally has high temperatures with maximum daytime temperatures around 23°C, minimum nighttime temperatures around 14°C and moderate monthly rainfall. So on average the conditions are perfect that month.

Westerly
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   August August
<<  
27°C 
17°C 
260 hours 
86 mm 
10 days 
23°C 
14°C 
233 hours 
98 mm 
8 days 
October   >> October
>>  
17°C 
8°C 
208 hours 
103 mm 
12 days 
Climate in Westerly

Is your destination not in the list? Have a look at other destinations in Rhode Island, in the United States of America.

Is September the best time to visit Rhode Island?

We consider September to be one of the best times to travel to Rhode Island. Typically, the climate in Middletown is perfect.

On average, the best time to visit Rhode Island is in August and September with generally perfect weather in Middletown. The weather in January, February, March, April and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Rhode Island. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

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