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
The initiation of August records an average high-temperature of a still warm 81°F (27.2°C), displaying a near consistency with the previous month. Portland encounters a steady low-temperature average of 63°F (17.2°C) throughout the month of August.Heat index
The heat index for August is appraised at a hot 86°F (30°C). Prolonged activity during exposure might result in a state of fatigue and cause heat cramps.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Humidity
In Portland, the average relative humidity in August is 76%.Rainfall
In August, the rain falls for 16.5 days. Throughout August, 2.76" (70mm) of precipitation is accumulated. In Portland, during the entire year, the rain falls for 162.2 days and collects up to 34.13" (867mm) of precipitation.Snowfall
In Portland, snow does not fall in June through October.Daylight
In Portland, the average length of the day in August is 13h and 48min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:07 pm. On the last day of August, sunrise is at 6:16 am and sunset at 7:24 pm EDT.
Sunshine
The months with the most sunshine are July and August, with an average of 10.3h of 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 of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 6 in August translates into the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Portland in August?
What is the average humidity in August in Portland?
How many days does it rain in August?
When it does not snow?
How many hours of daylight does Portland have in August?
When is the sunrise / sunset in August?
What are the months with the most sunshine?
How many hours of sunshine does Portland have in August?
What is the month with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Portland, CT
- Average high temperature in August: 81°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in August: 63°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in August
Portland, 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
Portland, CT
- Average wind speed in August: 5.4mph
The windiest months (with the highest average wind speed) are January and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in August
Portland, CT
- Average humidity in August: 76%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).
Average rainfall in August
Portland, CT
- Average rainfall in August: 2.76"
The wettest month (with the highest rainfall) is December (3.66").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in August
Portland, CT
- Average rainfall days in August: 16.5 days
The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in August
Portland, CT
- Average snowfall in August: 0"
The month with the highest snowfall is March (4.13").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in August
Portland, CT
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (8.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Portland, CT
- Average daylight in August: 13h and 5min
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 2min
The months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).
Average sunshine days in August
Portland, CT
- Average sunshine days in August: 11.8 days
The month with the most sunshine days is November (17.2 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in August
Portland, 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
Portland, CT
- Average cloud cover in August: 33
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in August
Portland, CT
- Average visibility in August: 6mi
The months with the highest visibility are January, March, April, August, September, October, November and December (6mi).
The months with the lowest visibility are February, May, June and July (5mi).
Portland, Connecticut, USA
Weather forecast for your location
2. Allow the app to use your location