Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
With August's advent, Foster sees an average high-temperature of a still warm 79.7°F (26.5°C), subtly shifted from July's 81.1°F (27.3°C). Throughout the month of August, Foster sees a steady low-temperature average of 61.9°F (16.6°C).Humidity
In Foster, the average relative humidity in August is 78%.Rainfall
In August, the rain falls for 16.6 days. Throughout August, 2.83" (72mm) of precipitation is accumulated. In Foster, during the entire year, the rain falls for 163 days and collects up to 33.86" (860mm) of precipitation.Snowfall
In Foster, snow does not fall in June through October.Daylight
In August, the average length of the day is 13h and 49min.On the first day of August, sunrise is at 5:41 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 7:21 pm EDT.
Sunshine
July and August, with an average of 10.2h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A daily maximum UV index of 6 in August translates into the following instructions:
Fend off overexposure. Sun protection is vital. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Foster in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Foster have in August?
What time are sunrise and sunset in August?
What is the month with the most sunshine?
How many hours of sunshine does Foster have in August?
When is the highest UV index?
How high is the UV index in August?
Average temperature in August
Foster, RI
- Average high temperature in August: 79.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in August: 61.9°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in August
Foster, RI
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Foster, RI
- Average wind speed in August: 5.9mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in August
Foster, RI
- Average humidity in August: 78%
The months with the highest relative humidity are February, June, July, September and October (79%).
The month with the lowest relative humidity is April (73%).
Average rainfall in August
Foster, RI
- Average rainfall in August: 2.83"
The wettest month (with the highest rainfall) is December (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in August
Foster, RI
- Average rainfall days in August: 16.6 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in August
Foster, RI
- Average snowfall in August: 0"
The month with the highest snowfall is March (3.7").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Foster, RI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (7.8 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
Foster, RI
- Average daylight in August: 13h and 5min
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 1min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in August
Foster, RI
- Average sunshine days in August: 11.8 days
The month with the most sunshine days is November (17.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in August
Foster, 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
Foster, RI
- Average cloud cover in August: 34
The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).
Average visibility in August
Foster, RI
- Average visibility in August: 5mi
The months with the highest visibility are January, February, March, April, October, November and December (6mi).
The months with the lowest visibility are May, June, July, August and September (5mi).
Foster, Rhode Island, USA
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