August weather forecastCharlestown, RI
August
Weather in August
In August, the temperatures in Charlestown show a marginal dip from the previous month, indicating a subtle change in season. The persistence of some humidity, relative to July, makes the weather still feel decidedly summery. The decrease in temperature is complemented by slightly shorter daylight hours, although the days remain considerably long. A high temperature of 76.1°F (24.5°C) confirms that August is still in the summer season, providing favourable weather for outdoor fun.Temperature
Charlestown's warmest weather arrives in August, when temperatures average a high of 76.1°F (24.5°C) and a low of 68.2°F (20.1°C).Humidity
In Charlestown, the average relative humidity in August is 79%.Rainfall
In August, the rain falls for 14.2 days. Throughout August, 2.28" (58mm) of precipitation is accumulated. Throughout the year, in Charlestown, there are 154.7 rainfall days, and 32.01" (813mm) of precipitation is accumulated.Snowfall
In Charlestown, snow does not fall in April through October.Daylight
In Charlestown, the average length of the day in August is 13h and 47min.On the first day of the month, sunrise is at 5:42 am and sunset at 8:03 pm. On the last day of August, sunrise is at 6:12 am and sunset at 7:20 pm EDT.
Sunshine
With an average of 10.7h of sunshine, August has the most sunshine of the year.UV index
June through August, with an average maximum UV index of 6, are months with the highest UV index in Charlestown. 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: The UV index of 6 during August translates into the following guidance:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Charlestown, RI
- Average high temperature in August: 76.1°F
The warmest month (with the highest average high temperature) is August (76.1°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in August: 68.2°F
The months with the highest average low temperature are July and August (68.2°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in August
Charlestown, 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
Charlestown, RI
- Average wind speed in August: 9.6mph
The windiest month (with the highest average wind speed) is January (14.8mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).
Average humidity in August
Charlestown, RI
- Average humidity in August: 79%
The month with the highest relative humidity is June (82%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in August
Charlestown, RI
- Average rainfall in August: 2.28"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.69").
Average rainfall days in August
Charlestown, RI
- Average rainfall days in August: 14.2 days
The month with the highest number of rainy days is July (15.8 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in August
Charlestown, RI
- Average snowfall in August: 0"
The month with the highest snowfall is March (2.6").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in August
Charlestown, RI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in August /
Average sunshine in August
Charlestown, RI
- 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 12min).
- Average sunshine in August: 10h and 42min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 54min).
Average sunshine days in August
Charlestown, RI
- Average sunshine days in August: 14.6 days
The month with the most sunshine days is November (16.9 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in August
Charlestown, 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 and December (UV index 2).
Average cloud cover in August
Charlestown, RI
- Average cloud cover in August: 27
The months with the most cloud cover are February, March and December (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Charlestown, 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).
