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
In August, the average high-temperature is almost the same as in July - a still moderately hot 77.7°F (25.4°C). In August, in Portsmouth, the average low-temperature is 65.7°F (18.7°C).Humidity
The average relative humidity in August in Portsmouth is 78%.Rainfall
In August, the rain falls for 11.8 days. Throughout August, 2.09" (53mm) of precipitation is accumulated. In Portsmouth, during the entire year, the rain falls for 148.1 days and collects up to 29.65" (753mm) of precipitation.Snowfall
In Portsmouth, Rhode Island, snow does not fall in April, 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 5:39 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:20 pm EDT.
Sunshine
The month with the most sunshine in Portsmouth 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 threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 6 in August interpret into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
FAQ
What is the temperature in August in Portsmouth?
What is the average humidity in August in Portsmouth?
How much does it rain in Portsmouth in August?
When it does not snow in Portsmouth?
What is the average length of the day in August in Portsmouth?
When is the sunrise / sunset in August in Portsmouth?
What month has the most sunshine in Portsmouth?
How long on average sun shines in August in Portsmouth?
What is the month with the highest UV index in Portsmouth?
What is the UV index intensity in August in Portsmouth?
Average temperature in August
Portsmouth, RI
- Average high temperature in August: 77.7°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in August: 65.7°F
The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in August
Portsmouth, 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
Portsmouth, RI
- Average wind speed in August: 8.1mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in August
Portsmouth, RI
- Average humidity in August: 78%
The month with the highest relative humidity is June (81%).
The month with the lowest relative humidity is March (73%).
Average rainfall in August
Portsmouth, RI
- Average rainfall in August: 2.09"
The wettest month (with the highest rainfall) is October (3.27").
The driest month (with the least rainfall) is September (1.42").
Average rainfall days in August
Portsmouth, RI
- Average rainfall days in August: 11.8 days
The month with the highest number of rainy days is April (15.6 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in August
Portsmouth, RI
- Average snowfall in August: 0"
The month with the highest snowfall is February (2.76").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in August
Portsmouth, RI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.6 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
Portsmouth, RI
- Average daylight in August: 13h and 48min
The month with the longest days is June (Average daylight: 15h and 8min).
The month with the shortest days is December (Average daylight: 9h and 13min).
- 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 48min).
Average sunshine days in August
Portsmouth, RI
- Average sunshine days in August: 16.9 days
The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is April (12.3 days).
Average UV index in August
Portsmouth, 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
Portsmouth, RI
- Average cloud cover in August: 29
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in August
Portsmouth, 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).
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