August weather forecast
Oak Bluffs, MA

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Weather in August

The last month of the summer, August, is a warm month in Oak Bluffs, Massachusetts, with an average temperature ranging between max 73.8°F (23.2°C) and min 68.9°F (20.5°C).

Temperature

August proves to be the warmest month, recording an average peak temperature of 73.8°F (23.2°C) and a minimum temperature of 68.9°F (20.5°C).

Humidity

In Oak Bluffs, Massachusetts, the average relative humidity in August is 80%.

Rainfall

In August, the rain falls for 7 days. Throughout August, 0.39" (10mm) of precipitation is accumulated. Throughout the year, there are 89.3 rainfall days, and 6.14" (156mm) of precipitation is accumulated.

Snowfall

April through November are months without snowfall.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 68.5°F (20.3°C).
Note: Swimming in water at 68.5°F (20.3°C) is not a pleasurable experience for most. The task of managing breathing becomes more challenging as the water temperature descends from 69.8°F (21°C) to 59°F (15°C).

Daylight

In Oak Bluffs, the average length of the day in August is 13h and 47min.
On the first day of August, sunrise is at 5:37 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:16 pm EDT.

Sunshine

August has the most sunshine of the year, with an average of 10.7h of sunshine.

UV index

July and August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 6 during August, leads to the following recommendations:
Ward off overexposure. Defence against solar harm is crucial. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

Oak Bluffs's warmest month, August, generally records average temperatures ranging from a high of 73.8°F (23.2°C) to a low of 68.9°F (20.5°C).

What is the usual temperature for Oak Bluffs in August?

August temperatures vary between a high-temperature of 73.8°F (23.2°C) and a low-temperature of 68.9°F (20.5°C).

What is the average humidity in August?

The average relative humidity in August is 80%.

How much does it rain in August?

In Oak Bluffs, in August, it is raining for 7 days, with typically 0.39" (10mm) of accumulated precipitation.

When it does not snow?

April through November are months without snowfall.

What is the month with the warmest ocean?

August is the month with the warmest seawater, with an average ocean temperature of 68.5°F (20.3°C).

What is the ocean temperature in August?

In Oak Bluffs, the average seawater temperature in August is 68.5°F (20.3°C). For swimming, a surface water temperature of 68.5°F (20.3°C) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 69.8°F (21°C).

What is the average length of the day in August?

In Oak Bluffs, the average day length in August is 13h and 47min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:37 am and sunset at 7:59 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 7:16 pm EDT.

What month has the most sunshine?

August has the most sunshine of the year, with an average of 10.7h of sunshine.

How long on average sun shines in August?

In Oak Bluffs, Massachusetts, the average sunshine duration in August is 10.7h.

What are the months with the highest UV index?

July and August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in August?

The average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Oak Bluffs, MA

Average temperature in August - Oak Bluffs, MA
  • Average high temperature in August: 73.8°F

The warmest month (with the highest average high temperature) is August (73.8°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in August: 68.9°F

The month with the highest average low temperature is August (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).

Average pressure in August
Oak Bluffs, MA

Average pressure in August - Oak Bluffs, 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
Oak Bluffs, MA

Average wind speed in August - Oak Bluffs, MA
  • Average wind speed in August: 10.8mph

The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.7mph).

Average humidity in August
Oak Bluffs, MA

Average humidity in August - Oak Bluffs, MA
  • Average humidity in August: 80%

The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is November (74%).

Average rainfall in August
Oak Bluffs, MA

Average rainfall in August - Oak Bluffs, MA
  • Average rainfall in August: 0.39"

The wettest month (with the highest rainfall) is October (0.83").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in August
Oak Bluffs, MA

Average rainfall days in August - Oak Bluffs, MA
  • Average rainfall days in August: 7 days

The month with the highest number of rainy days is July (9.1 days).
The months with the least rainy days are September and November (5.9 days).

Average snowfall in August
Oak Bluffs, MA

Average snowfall in August - Oak Bluffs, MA
  • Average snowfall in August: 0"

The months with the highest snowfall are January and February (0.24").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Oak Bluffs, MA

Average snowfall days in August - Oak Bluffs, MA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in August
Oak Bluffs, MA

Average sea temperature in August - Oak Bluffs, MA
  • Average sea temperature in August: 68.5°F

The best month for swimming (with the highest average sea temperature) is August (68.5°F).
The coldest month (with the lowest average sea temperature) is February (37.9°F).

Average daylight in August /
Average sunshine in August
Oak Bluffs, MA

Average daylight in August / Average sunshine in August - Oak Bluffs, MA
  • 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 4min

The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
Oak Bluffs, MA

Average sunshine days in August - Oak Bluffs, MA
  • Average sunshine days in August: 21.3 days

The month with the most sunshine days is September (21.4 days).
The month with the least sunshine days is February (18.5 days).

Average UV index in August
Oak Bluffs, MA

Average UV index in August - Oak Bluffs, 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
Oak Bluffs, MA

Average cloud cover in August - Oak Bluffs, MA
  • Average cloud cover in August: 28

The month with the most cloud cover is December (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 28).

Average visibility in August
Oak Bluffs, MA

Average visibility in August - Oak Bluffs, 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).

Oak Bluffs, Massachusetts, USA

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