August weather forecastHyannis Port, MA
August
Weather in August
August, the last month of the summer in Hyannis Port, is another pleasant month, with an average temperature ranging between min 68.2°F (20.1°C) and max 72.5°F (22.5°C).Temperature
The warmest month is August, with an average high-temperature of 72.5°F (22.5°C) and an average low-temperature of 68.2°F (20.1°C).Humidity
In Hyannis Port, Massachusetts, the average relative humidity in August is 81%.Rainfall
The month with the least rainfall is August, when the rain falls for 12.4 days and typically collects 1.73" (44mm) of precipitation.Snowfall
In Hyannis Port, snow does not fall in May through November.Daylight
In August, the average length of the day is 13h and 48min.On the first day of the month, sunrise is at 5:36 am and sunset at 7:58 pm. On the last day of August, sunrise is at 6:06 am and sunset at 7:15 pm EDT.
Sunshine
August has the most sunshine of the year, with an average of 10.8h of sunshine.UV index
The months with the highest UV index in Hyannis Port, Massachusetts, are July and August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 6 in August translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Hyannis Port, MA
- Average high temperature in August: 72.5°F
The warmest month (with the highest average high temperature) is August (72.5°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in August: 68.2°F
The month with the highest average low temperature is August (68.2°F).
The coldest month (with the lowest average low temperature) is January (30.4°F).
Average pressure in August
Hyannis Port, MA
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in August
Hyannis Port, MA
- Average wind speed in August: 10.6mph
The windiest month (with the highest average wind speed) is January (16.5mph).
The calmest month (with the lowest average wind speed) is August (10.6mph).
Average humidity in August
Hyannis Port, MA
- Average humidity in August: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is November (74%).
Average rainfall in August
Hyannis Port, MA
- Average rainfall in August: 1.73"
The wettest month (with the highest rainfall) is October (3.7").
The driest month (with the least rainfall) is August (1.73").
Average rainfall days in August
Hyannis Port, MA
- Average rainfall days in August: 12.4 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is February (10.3 days).
Average snowfall in August
Hyannis Port, MA
- Average snowfall in August: 0"
The month with the highest snowfall is March (1.93").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in August
Hyannis Port, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (7.1 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
Hyannis Port, MA
- 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 48min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in August
Hyannis Port, MA
- Average sunshine days in August: 17.7 days
The month with the most sunshine days is August (17.7 days).
The month with the least sunshine days is February (11.4 days).
Average UV index in August
Hyannis Port, MA
- Average UV index in August: 6
The months with the highest UV index are 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
Hyannis Port, MA
- Average cloud cover in August: 27
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
Hyannis Port, MA
- 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).
