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 sea temperature 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 the onset of August, a modest change to a still moderately hot 75.2°F (24°C) from July's 75.6°F (24.2°C) is noted in high-temperature. The nighttime temperature in Onset demonstrates a marginal decline, averaging at an enjoyable 66.7°F (19.3°C) during August.Humidity
The average relative humidity in August in Onset is 79%.Rainfall
In Onset, during August, the rain falls for 14.1 days and regularly aggregates up to 2.09" (53mm) of precipitation. Throughout the year, there are 157.4 rainfall days, and 32.2" (818mm) of precipitation is accumulated.Snowfall
In Onset, snow does not fall in May through September.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 68.5°F (20.3°C).Note: The majority of people find swimming in 68.5°F (20.3°C) unenjoyable. As the water temperature decreases from 69.8°F (21°C) to 59°F (15°C), breathing becomes more challenging to control.
Daylight
In August, the average length of the day is 13h and 49min.On the first day of the month, sunrise is at 5:37 am and sunset at 8:00 pm. On the last day of August, in Onset, sunrise is at 6:08 am and sunset at 7:17 pm EDT.
Sunshine
With an average of 10.7h of sunshine, August has the most sunshine of the year in Onset.UV index
July and August, with an average maximum UV index of 6, are months with the highest UV index in Onset. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In August, the UV index of 6 transforms into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Frequently asked questions
What is the temperature in August in Onset?
What is the average humidity in August in Onset?
How many days does it rain in August in Onset?
When it does not snow in Onset?
What is the month with the warmest ocean in Onset?
What is the ocean temperature in August in Onset?
How many hours of daylight does Onset have in August?
What time are sunrise and sunset in August in Onset?
What month has the most sunshine in Onset?
How many hours of sunshine does Onset have in August?
What are the months with the highest UV index in Onset?
What is the UV index reading in August in Onset?
Average temperature in August
Onset, MA
- Average high temperature in August: 75.2°F
The warmest month (with the highest average high temperature) is July (75.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in August: 66.7°F
The month with the highest average low temperature is August (66.7°F).
The coldest month (with the lowest average low temperature) is January (27.7°F).
Average pressure in August
Onset, 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
Onset, MA
- Average wind speed in August: 8.7mph
The windiest month (with the highest average wind speed) is January (13.7mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in August
Onset, MA
- Average humidity in August: 79%
The months with the highest relative humidity are June and July (81%).
The months with the lowest relative humidity are March and November (74%).
Average rainfall in August
Onset, MA
- Average rainfall in August: 2.09"
The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in August
Onset, MA
- Average rainfall days in August: 14.1 days
The month with the highest number of rainy days is July (16 days).
The month with the least rainy days is January (9 days).
Average snowfall in August
Onset, MA
- Average snowfall in August: 0"
The months with the highest snowfall are February and March (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in August
Onset, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in August
Onset, MA
- Average sea temperature in August: 68.4°F
The best month for swimming (with the highest average sea temperature) is August (68.4°F).
The coldest month (with the lowest average sea temperature) is February (38.2°F).
Average daylight in August /
Average sunshine in August
Onset, MA
- 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in August
Onset, MA
- Average sunshine days in August: 14.3 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is April (12.5 days).
Average UV index in August
Onset, 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
Onset, MA
- Average cloud cover in August: 28
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in August
Onset, 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).
Onset, Massachusetts, USA
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