Rhode Island weather in September 2025
Rhode Island weather in September 2025
Day
22 °C
Night
13 °C
Sea
18 °C
Precipitation
91 mm
in month
Rainy days
8 days
in month
Daylight
12 hours
average
Sunshine
7 hours
average
Humidity
75 %
Day
22 °C
Night
13 °C
Sea
18 °C
Precipitation
91 mm
in month
Rainy days
8 days
in month
Daylight
12 hours
average
Sunshine
7 hours
average
Humidity
75 %
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Weather overview and FAQs
Weather overview
In September in Rhode Island, the average air temperature ranges from 22 °C (72 °F) during the day to 13 °C (56 °F) at night. There are 8 days of rain on average, where the rainfall is 91 mm (3.57 in).
Is September a good month to visit Rhode Island?
There are good conditions for visiting in Rhode Island in September. Especially for non-beach activities, such as hiking or sightseeing. The daily temperatures in this month reach pleasant 22 °C (72 °F). You can expect just 8 days of rain during the month, taking an umbrella is not necessary. The temperature of 13 °C (56 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.
What is the sea temperature in September in Rhode Island?
The temperature of the sea in Rhode Island in September is 18 °C (64 °F). At this sea temperature, swimming probably won't be the best experience. You probably won't like to stay in water for a long time. On the other hand, there are a minority of people who seek these conditions.
What temperature can I expect during the day in September in Rhode Island?
In Rhode Island in September, the average daily temperatures will be 22 °C (72 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.
Is there a wet season in Rhode Island in September?
No, there is no wet season in September in Rhode Island - you can expect 8 days of rain during the month.
What is the average number of rainy days in September in Rhode Island?
There are 8 days, which are rainy in Rhode Island in September, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.0 days of the week, or in general - 28 % days.
How heavy is the precipitation in September in Rhode Island?
There is precipitation of 91 mm (3.57 in) in September in Rhode Island, which means 3 mm (0.12 in) rainfall per day on average.
What is the air temperature in September in Rhode Island at night?
The average night temperature in Rhode Island in September is 13 °C (56 °F). Nights can be cooler, morning running can be refreshing but choose appropriate clothing, evening outdoor sitting can be pleasant but you can also be cold.
What level of humidity is to expect in Rhode Island in September?
In Rhode Island in September, expect humidity around 75 %.
How many hours of sun to expect in Rhode Island in September?
There is an average length of sunshine of 7 hours per day in Rhode Island in September.
Is September part of the dry season in Rhode Island?
No, September is not a dry month in Rhode Island, expect rain approximately 8 days in a month.
How windy is Rhode Island in September?
In September in Rhode Island, there will be an average wind scale of 4.
How long is the day (from dawn till dusk) in Rhode Island in September?
The length of daylight in Rhode Island in September is 12 hours.
Is the sea in Rhode Island warmer in September than in August?
No, the sea is not warmer in September in Rhode Island than in August.
Is the weather in Rhode Island warmer in September than in August?
No, September is not warmer in Rhode Island than August.
Is Rhode Island rainier in September than in August?
No, September in Rhode Island is not a rainier month than August.