August weather forecastRiverside, CT
August
Weather in August
August in Riverside continues the prevalent summer season, but temperatures start to show a decline. The weather remains mostly dry, with sporadic rainfall events. Increased sunlight facilitates a myriad of outdoor pursuits, while a comfortable sea temperature invites beach lovers. Although August carries the summer heat, the onset of cooling winds foreshadow the early signs of the approaching fall season. Despite showing a dropdown, the temperature reaches up to 80.4°F (26.9°C) making August the second warmest month of the year.Temperature
August denotes a minimal variation in the average high-temperature to a still warm 80.4°F (26.9°C) from July's 81.9°F (27.7°C). Riverside experiences a consistent average temperature of 68.9°F (20.5°C) throughout the nights in August.Humidity
With an average relative humidity of 71%, August is the least humid month.Rainfall
In Riverside, in August, it is raining for 16.3 days, with typically 3.46" (88mm) of accumulated precipitation. In Riverside, during the entire year, the rain falls for 166.6 days and collects up to 38.07" (967mm) of precipitation.Snowfall
May through October are months without snowfall.Ocean temperature
August is the month with the warmest seawater, with an average ocean temperature of 73°F (22.8°C).Note: When considering a person's aversion to cold, factors like sunshine, wind, and atmospheric temperature are key. Swimming in 73°F (22.8°C) might be delightful. (Remember: The Olympics' swimming events have water temperatures between 77°F (25°C) and 82.4°F (28°C).)
Daylight
The average length of the day in August is 13h and 46min.On the first day of August, sunrise is at 5:50 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 7:28 pm EDT.
Sunshine
In Riverside, the average sunshine in August is 10.2h.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for average individuals.Note: An average UV index of 6 in August transforms into this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat. Caution! The mirror effect of sand and water ups the UV radiation strength.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Riverside, CT
- Average high temperature in August: 80.4°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (36°F).
- Average low temperature in August: 68.9°F
The month with the highest average low temperature is July (69.3°F).
The coldest month (with the lowest average low temperature) is January (26.2°F).
Average pressure in August
Riverside, CT
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Riverside, CT
- Average wind speed in August: 6.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in August
Riverside, CT
- Average humidity in August: 71%
The months with the highest relative humidity are February, May, June and December (75%).
The month with the lowest relative humidity is August (71%).
Average rainfall in August
Riverside, CT
- Average rainfall in August: 3.46"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is January (2.44").
Average rainfall days in August
Riverside, CT
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in August
Riverside, CT
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Riverside, CT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
Riverside, CT
- Average sea temperature in August: 73.1°F
The best month for swimming (with the highest average sea temperature) is August (73.1°F).
The coldest month (with the lowest average sea temperature) is February (39.5°F).
Average daylight in August /
Average sunshine in August
Riverside, CT
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in August: 10h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 4h and 42min).
Average sunshine days in August
Riverside, CT
- Average sunshine days in August: 12 days
The month with the most sunshine days is November (17.9 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in August
Riverside, CT
- 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, CT
- Average cloud cover in August: 31
The month with the most cloud cover is December (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in August
Riverside, CT
- 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).
