August weather forecastExeter, RI
August
Weather in August
August in Exeter continues the warm trend set in July, but with a slight dip in temperatures. The warm weather prompts people to enjoy the outdoor amenities the city has to offer. As the end of the month nears, subtle signals of fall start to appear. Average temperature values hover from 79.3°F (26.3°C) in the daytime to a tolerable 64°F (17.8°C) at night. As the month concludes, the weather prepares for the gradual transition into fall.Temperature
Exeter marks the arrival of August with an average high-temperature of a still moderately hot 79.3°F (26.3°C), hardly different from July's 79.5°F (26.4°C). In August, Exeter records an average nighttime temperature of 64°F (17.8°C).Humidity
The average relative humidity in August is 77%.Rainfall
In August, the rain falls for 12.5 days. Throughout August, 1.85" (47mm) of precipitation is accumulated. In Exeter, during the entire year, the rain falls for 138.3 days and collects up to 24.06" (611mm) of precipitation.Snowfall
In Exeter, snow does not fall in June through October.Daylight
In August, the average length of the day is 13h and 48min.On the first day of August, sunrise is at 5:41 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
With an average of 10.5h of sunshine, August has the most sunshine of the year.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.Note: The UV index of 6 during August translates into the following guidance:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Exeter, RI
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in August: 64°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in August
Exeter, 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
Exeter, RI
- Average wind speed in August: 7.1mph
The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest month (with the lowest average wind speed) is August (7.1mph).
Average humidity in August
Exeter, RI
- Average humidity in August: 77%
The month with the highest relative humidity is June (81%).
The months with the lowest relative humidity are March and April (73%).
Average rainfall in August
Exeter, RI
- Average rainfall in August: 1.85"
The wettest month (with the highest rainfall) is October (2.52").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in August
Exeter, RI
- Average rainfall days in August: 12.5 days
The months with the highest number of rainy days are April and July (14.5 days).
The month with the least rainy days is February (7.7 days).
Average snowfall in August
Exeter, RI
- Average snowfall in August: 0"
The month with the highest snowfall is February (1.97").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Exeter, RI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (5.3 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
Exeter, 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 30min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Exeter, RI
- Average sunshine days in August: 15.9 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is April (13.7 days).
Average UV index in August
Exeter, 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
Exeter, RI
- Average cloud cover in August: 30
The months with the most cloud cover are February and March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Exeter, 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).





