August weather forecastCohasset, MA
August
Weather in August
August, the last month of the summer in Cohasset, is another warm month, with an average temperature varying between 78.4°F (25.8°C) and 64.2°F (17.9°C).Temperature
August's advent presents an average high-temperature of a still moderately hot 78.4°F (25.8°C), indicating a slight variation from the conditions of the previous month. August nights observe an average temperature dip to an enjoyable 64.2°F (17.9°C).Humidity
In August, the average relative humidity is 75%.Rainfall
In Cohasset, in August, it is raining for 13 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, there are 152 rainfall days, and 29.09" (739mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In Cohasset, Massachusetts, the average length of the day in August is 13h and 50min.On the first day of August, sunrise is at 5:36 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:18 pm EDT.
Sunshine
With an average of 10.6h of sunshine, August has the most sunshine of the year.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 6 during August translates into the following guidance:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Cohasset, MA
- Average high temperature in August: 78.4°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (34.5°F).
- Average low temperature in August: 64.2°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in August
Cohasset, 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
Cohasset, MA
- Average wind speed in August: 6.9mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in August
Cohasset, MA
- Average humidity in August: 75%
The months with the highest relative humidity are February, June and September (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall in August
Cohasset, MA
- Average rainfall in August: 1.77"
The wettest month (with the highest rainfall) is December (3.11").
The driest month (with the least rainfall) is September (1.5").
Average rainfall days in August
Cohasset, MA
- Average rainfall days in August: 13 days
The month with the highest number of rainy days is July (16.5 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in August
Cohasset, MA
- Average snowfall in August: 0"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in August
Cohasset, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in August /
Average sunshine in August
Cohasset, MA
- Average daylight in August: 13h and 48min
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 36min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in August
Cohasset, MA
- Average sunshine days in August: 15.8 days
The month with the most sunshine days is November (17 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in August
Cohasset, 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
Cohasset, MA
- Average cloud cover in August: 30
The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in August
Cohasset, 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).
