August weather forecastRiverside, RI
August
Weather in August
In August, Riverside continues to bask in the summertime temperatures, albeit slightly decreasing towards the end of the month. The sun continues to shine for the majority of the day. From open-air concerts to outdoor food festivals, August's weather perfectly suits a multitude of activities. Cooler evening temperatures invite leisurely strolls along the coastline, under a sky awash with hues of twilight.Temperature
During August, Riverside observes a subtle ascent to a still moderately hot 79.9°F (26.6°C) from July's 81°F (27.2°C) in the average high-temperature. Riverside usually reports an average low-temperature of 63.9°F (17.7°C) during the month of August.Humidity
The average relative humidity in August is 76%.Rainfall
In Riverside, Rhode Island, during August, the rain falls for 13 days and regularly aggregates up to 1.81" (46mm) of precipitation. Throughout the year, there are 144.3 rainfall days, and 23.43" (595mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
In Riverside, the average length of the day in August is 13h and 49min.On the first day of August, sunrise is at 5:40 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 7:20 pm EDT.
Sunshine
The month with the most sunshine is August, with an average of 10.5h of sunshine.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 6 in August, converts into the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Riverside, RI
- Average high temperature in August: 79.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (35.1°F).
- Average low temperature in August: 63.9°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (23.5°F).
Average pressure in August
Riverside, RI
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Riverside, RI
- Average wind speed in August: 6.5mph
The windiest months (with the highest average wind speed) are January, February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).
Average humidity in August
Riverside, RI
- Average humidity in August: 76%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is April (72%).
Average rainfall in August
Riverside, RI
- Average rainfall in August: 1.81"
The wettest month (with the highest rainfall) is April (2.4").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in August
Riverside, RI
- Average rainfall days in August: 13 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in August
Riverside, RI
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.01").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Riverside, RI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Riverside, RI
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in August: 10h and 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in August
Riverside, RI
- Average sunshine days in August: 15.5 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is April (13.2 days).
Average UV index in August
Riverside, RI
- Average UV index in August: 6
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in August
Riverside, RI
- Average cloud cover in August: 31
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in August
Riverside, RI
- Average visibility in August: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





