Average August Weather in Rhode Island

Typical temperatures, precipitation, humidity and sunshine during August at cities and towns throughout Rhode Island are listed below.

Temperatures in Rhode Island for August

This table gives the averages in degrees Fahrenheit and Celsius for maximum and minimum monthly temperatures. These normal temperatures are based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

Average August temperatures
High °F Low °F Place High °C Low °C
78 62 Block Island 25 17
82 59 Kingston 28 15
78 64 Newport 26 18
78 59 North Foster 26 15
81 63 Providence 27 17
82 64 Tiverton 28 18
79 62 Westerly 26 17
81 60 Woonsocket 27 16

Precipitation in Rhode Island for August

Here are the August averages for rainfall in Rhode Island. Each place has a total for how many days of wet weather it usually gets this month and for the normal amount of precipitation, based on the weather during 1981 to 2010. The calculation of days only includes those when precipitation totalled 0.01 inches (0.25 millimetres) or more.

Average precipitation in August
Days Place Inches Milli­metres
6 Block Island 3.0 75
9 Kingston 4.4 111
9 Newport 3.8 96
10 North Foster 4.3 110
9 Providence 3.6 91
10 Tiverton 3.8 97
Westerly 4.2 105
10 Woonsocket 4.1 105

Sunshine in Rhode Island for August

In the table below, the average number of Sunny Days in Rhode Island is the total days this month when the sky is mostly clear. This includes the days when cloud covers up to 30% of the sky during daylight hours.

Partly Sunny Days have cloud covering from 40% to 70% of the sky during the daytime. The rest of the days during August are mainly overcast, with at least 80% cloud cover. Total Days With Sun is a sum of the Sunny plus Partly Sunny days.

Days of sunshine in August
City Sunny Partly Sunny Total Days
With Sun
Block Island 7 11 18
Providence 8 10 18

Humidity in Rhode Island

In the table below, the Daily number is the average of relative humidity readings taken every three hours throughout the day. Morning percentages are for 7 am and Afternoon levels are for 4 pm local standard time. All the humidity numbers are averages for the years 1961 to 1990.

Average August humidity (%)
Daily City Morning Afternoon
73 Providence 80 59

National Climatic Data Center. Comparative Climatic Data.

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

World Data Center for Meteorology. Climate of the World.

More Rhode Island Weather Information

Rhode Island Weather
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