August weather forecast
East Boston, MA

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Weather in August

The last month of the summer, August, is another warm month in East Boston, Massachusetts, with an average temperature varying between 80.4°F (26.9°C) and 64°F (17.8°C).

Temperature

With August's advent, East Boston sees an average high-temperature of a still warm 80.4°F (26.9°C), subtly shifted from July's 81.7°F (27.6°C). An average temperature of 64°F (17.8°C) marks the nights in East Boston in August.

Humidity

In East Boston, the average relative humidity in August is 72%.

Rainfall

In East Boston, Massachusetts, in August, it is raining for 11.7 days, with typically 1.61" (41mm) of accumulated precipitation. Throughout the year, there are 141.4 rainfall days, and 27.2" (691mm) of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In August, the average length of the day is 13h and 51min.
On the first day of August, sunrise is at 5:37 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:19 pm EDT.

Sunshine

With an average of 10.5h of sunshine, August has the most sunshine of the year.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: In August, the UV index of 6 transforms into the following advice:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. 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. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are August temperatures?

During August, East Boston experiences an average high-temperature of 80.4°F (26.9°C) and a low-temperature of 64°F (17.8°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines relative humidity and air temperature, is estimated at 86°F (30°C).

What is the average humidity in August?

In August, the average relative humidity is 72%.

How much does it rain in East Boston in August?

In East Boston, Massachusetts, in August, it is raining for 11.7 days, with typically 1.61" (41mm) of accumulated precipitation.

When it does not snow?

In East Boston, snow does not fall in June through September.

How many hours of daylight does East Boston have in August?

The average day length in August is 13h and 51min.

When are sunrise and sunset in August?

On the first day of August, sunrise is at 5:37 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:19 pm EDT.

What month has the most sunshine?

With an average of 10.5h of sunshine, August has the most sunshine of the year.

How many hours of sunshine does East Boston have in August?

In East Boston, Massachusetts, the average sunshine duration in August is 10.5h.

What is the month with the highest UV index?

The months with the highest UV index in East Boston are June through August, with an average maximum UV index of 6.

What is the UV index intensity in August?

In East Boston, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
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
East Boston, MA

Average temperature in August - East Boston, MA
  • Average high temperature in August: 80.4°F

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (34.2°F).

  • Average low temperature in August: 64°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 (22.6°F).

Average pressure in August
East Boston, MA

Average pressure in August - East Boston, 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
East Boston, MA

Average wind speed in August - East Boston, MA
  • Average wind speed in August: 6.2mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).

Average humidity in August
East Boston, MA

Average humidity in August - East Boston, MA
  • Average humidity in August: 72%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is April (69%).

Average rainfall in August
East Boston, MA

Average rainfall in August - East Boston, MA
  • Average rainfall in August: 1.61"

The wettest months (with the highest rainfall) are March, April and December (2.91").
The driest month (with the least rainfall) is September (1.26").

Average rainfall days in August
East Boston, MA

Average rainfall days in August - East Boston, MA
  • Average rainfall days in August: 11.7 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (7.9 days).

Average snowfall in August
East Boston, MA

Average snowfall in August - East Boston, MA
  • Average snowfall in August: 0"

The month with the highest snowfall is February (4.72").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
East Boston, MA

Average snowfall days in August - East Boston, MA
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
East Boston, MA

Average daylight in August / Average sunshine in August - East Boston, 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 6min).

  • Average sunshine in August: 10h and 3min

The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
East Boston, MA

Average sunshine days in August - East Boston, MA
  • Average sunshine days in August: 17 days

The month with the most sunshine days is September (17.7 days).
The month with the least sunshine days is April (13 days).

Average UV index in August
East Boston, MA

Average UV index in August - East Boston, MA
  • Average UV index in August: 6

The months with the highest UV index are June, 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
East Boston, MA

Average cloud cover in August - East Boston, MA
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in August
East Boston, MA

Average visibility in August - East Boston, 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).

East Boston, Massachusetts, USA

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