August weather forecast
Brookline, MA

Share
A small league field in Brookline, Massachusetts, overlooking bright yellow trees in the fall, behind the cityscape of Boston
A small league field in Brookline, Massachusetts, overlooking bright yellow trees in the fall, behind the cityscape of Boston

Weather in August

August holds onto the heat of the summer, with the average highest temperature slightly dipping to 80.4°F (26.9°C) from July's 81.9°F (27.7°C). The reduction in humidity, coupled with an increase in daylight hours, brings forth noticeable atmospheric changes. While remaining warm, August loses none of the summer's charm, making it perfect for evening outdoor pastimes. Brookline residents are seen donning light fabrics, sunglasses, and sun hats, becoming synonymous with the continued summer season. The month subtly hints at the approach of cooler autumn weather without stifling the ongoing summer mood.

Temperature

With the advent of August, Brookline experiences an average high-temperature of a still moderately hot 80.4°F (26.9°C), mirroring a close resemblance to the previous month. In August, the temperature in Brookline drops to an average of 63.5°F (17.5°C) at night.

Humidity

In August, the average relative humidity is 73%.

Rainfall

In Brookline, in August, during 7.9 rainfall days, 0.39" (10mm) of precipitation is typically accumulated. In Brookline, during the entire year, the rain falls for 81.8 days and collects up to 5.51" (140mm) of precipitation.

Snowfall

In Brookline, snow does not fall in June through October.

Daylight

In August, the average length of the day in Brookline is 13h and 50min.
On the first day of the month, sunrise is at 5:37 am and sunset at 8:03 pm. On the last day of August, in Brookline, sunrise is at 6:09 am and sunset at 7:19 pm EDT.

Sunshine

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

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 threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average maximum UV index of 6 in August leads to these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

What is the usual temperature for Brookline in August?

In August, in Brookline, the average high-temperature is 80.4°F (26.9°C), and the average low-temperature is 63.5°F (17.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 86°F (30°C).

What is the average humidity in August?

In Brookline, the average relative humidity in August is 73%.

How many days does it rain in August?

In August, the rain falls for 7.9 days. Throughout August, 0.39" (10mm) of precipitation is accumulated.

When it does not snow?

In Brookline, snow does not fall in June through October.

What is the average length of the day in August?

In Brookline, the average day length in August is 13h and 50min.

When is the sunrise / sunset in August?

In August, on the first day of the month, 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?

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

How long on average sun shines in August in Brookline?

The average sunshine duration in August is 10.5h.

What is the month with the highest UV index?

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

How high is the UV index in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk 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
Brookline, MA

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

The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (33.8°F).

  • Average low temperature in August: 63.5°F

The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

Average pressure in August
Brookline, MA

Average pressure in August - Brookline, 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
Brookline, MA

Average wind speed in August - Brookline, MA
  • Average wind speed in August: 6mph

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest month (with the lowest average wind speed) is August (6mph).

Average humidity in August
Brookline, MA

Average humidity in August - Brookline, MA
  • Average humidity in August: 73%

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

Average rainfall in August
Brookline, MA

Average rainfall in August - Brookline, MA
  • Average rainfall in August: 0.39"

The wettest month (with the highest rainfall) is November (0.63").
The driest month (with the least rainfall) is September (0.2").

Average rainfall days in August
Brookline, MA

Average rainfall days in August - Brookline, MA
  • Average rainfall days in August: 7.9 days

The month with the highest number of rainy days is July (9.6 days).
The month with the least rainy days is January (4.3 days).

Average snowfall in August
Brookline, MA

Average snowfall in August - Brookline, MA
  • Average snowfall in August: 0"

The month with the highest snowfall is December (0.71").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Brookline, MA

Average snowfall days in August - Brookline, MA
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

Average daylight in August /
Average sunshine in August
Brookline, MA

Average daylight in August / Average sunshine in August - Brookline, 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 42min).

Average sunshine days in August
Brookline, MA

Average sunshine days in August - Brookline, MA
  • Average sunshine days in August: 19.8 days

The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is June (17.4 days).

Average UV index in August
Brookline, MA

Average UV index in August - Brookline, 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
Brookline, MA

Average cloud cover in August - Brookline, MA
  • Average cloud cover in August: 32

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in August
Brookline, MA

Average visibility in August - Brookline, 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).

Brookline, Massachusetts, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location