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
West Dennis's warmest temperatures are experienced in August, with average high temperatures of 72.1°F (22.3°C) and lows of 68.5°F (20.3°C).Humidity
In West Dennis, the average relative humidity in August is 81%.Rainfall
The month with the least rainfall is August, when the rain falls for 11.2 days and typically collects 0.94" (24mm) of precipitation.Snowfall
May through November are months without snowfall.Ocean temperature
The month with the warmest seawater is August, with an average ocean temperature of 67.5°F (19.7°C).Note: Swimming in 67.5°F (19.7°C) is not a pleasurable activity for the majority of people. Breathing becomes increasingly challenging as water temperature descends from 69.8°F (21°C) to 59°F (15°C).
Daylight
In West Dennis, the average length of the day in August is 13h and 48min.On the first day of August, sunrise is at 5:35 am and sunset at 7:58 pm. On the last day of the month, 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 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 unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 6 in August leads to these guidelines:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. 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. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What time of the year is the hottest?
What is the usual temperature for West Dennis in August?
What is the average humidity in August?
What is the driest month?
How many days does it rain in August?
When it does not snow?
What is the month with the warmest ocean?
What is the ocean temperature in August?
How many hours of daylight does West Dennis have in August?
When are sunrise and sunset in August?
What month has the most sunshine in West Dennis?
How long on average sun shines in August?
When is the highest UV index?
What is the UV index intensity in August?
Average temperature in August
West Dennis, MA
- Average high temperature in August: 72.1°F
The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (38.5°F).
- Average low temperature in August: 68.5°F
The month with the highest average low temperature is August (68.5°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in August
West Dennis, 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
West Dennis, MA
- Average wind speed in August: 10.9mph
The windiest month (with the highest average wind speed) is January (16.8mph).
The calmest months (with the lowest average wind speed) are July and August (10.9mph).
Average humidity in August
West Dennis, MA
- Average humidity in August: 81%
The months with the highest relative humidity are June and July (84%).
The month with the lowest relative humidity is November (74%).
Average rainfall in August
West Dennis, MA
- Average rainfall in August: 0.94"
The wettest month (with the highest rainfall) is October (1.93").
The driest month (with the least rainfall) is August (0.94").
Average rainfall days in August
West Dennis, MA
- Average rainfall days in August: 11.2 days
The month with the highest number of rainy days is May (12.5 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in August
West Dennis, MA
- Average snowfall in August: 0"
The month with the highest snowfall is January (0.87").
The months with the least snowfall are May, June, July, August, September, October and November (0").
Average snowfall days in August
West Dennis, MA
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
West Dennis, MA
- Average sea temperature in August: 67.5°F
The best month for swimming (with the highest average sea temperature) is August (67.5°F).
The coldest month (with the lowest average sea temperature) is March (39°F).
Average daylight in August /
Average sunshine in August
West Dennis, 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 5min
The month with the most sunshine is August (Average sunshine: 10h and 48min).
The months with the least sunshine are February and December (Average sunshine: 4h and 36min).
Average sunshine days in August
West Dennis, MA
- Average sunshine days in August: 18.3 days
The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is February (14.3 days).
Average UV index in August
West Dennis, 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
West Dennis, MA
- Average cloud cover in August: 27
The month with the most cloud cover is December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in August
West Dennis, 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).
West Dennis, Massachusetts, USA
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