August weather forecast
Newton, MA

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Ancient historic buildings within the Union Historic District in Newton City, Massachusetts
Ancient historic buildings within the Union Historic District in Newton City, Massachusetts

Weather in August

Though mirroring its predecessor in many aspects, August in Newton does hint at a subtle toning down of the summer heat. While the high average temperatures continue to linger around 81°F (27.2°C), the low temperatures point to relatively cooler nights at an average of 63°F (17.2°C). This month also registers higher visibility, painting crisp and clear landscapes for sightseeing and photography. Predictably, the wind keeps its leisurely pace from July, and rainfall remains a constant. August thus, maintains the summer grace but indicates an impending climate change.

Temperature

As July transitions into August, Newton records an average high-temperature of a still warm 81°F (27.2°C), showing a gentle shift from the preceding month. August nights in Newton are marked by an average low-temperature of 63°F (17.2°C).

Heat index

August's mean heat index is estimated at 84.2°F (29°C). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
Note that heat index values are valued for light wind and location in the shade. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'feels like' or 'real feel', determines the feeling of heat when you account for the relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.

Humidity

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

Rainfall

In Newton, during August, the rain falls for 7.8 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, in Newton, Massachusetts, there are 85.9 rainfall days, and 5.87" (149mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall in Newton.

Daylight

In August, the average length of the day is 13h and 50min.
On the first day of August in Newton, sunrise is at 5:38 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:20 pm EDT.

Sunshine

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

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: In August, the maximum UV index of 6 translates into these guidelines:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

What are August temperatures in Newton?

In Newton, in August, the average high-temperature is 81°F (27.2°C), and the average low-temperature is 63°F (17.2°C). In August, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is estimated at 84.2°F (29°C).

What is the average humidity in August in Newton?

The average relative humidity in August in Newton is 73%.

How much does it rain in Newton in August?

In August, in Newton, the rain falls for 7.8 days. Throughout August, 0.43" (11mm) of precipitation is accumulated.

When it does not snow in Newton?

June through October are months without snowfall in Newton.

How many hours of daylight does Newton have in August?

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

When is the sunrise / sunset in August in Newton?

On the first day of August, sunrise is at 5:38 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:20 pm EDT.

What month has the most sunshine in Newton?

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

How long on average sun shines in August in Newton?

The average sunshine duration in August is 10.5h.

What are the months with the highest UV index in Newton?

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

How high is the UV index in August in Newton?

The average daily maximum UV index in August in Newton is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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
Newton, MA

Average temperature in August - Newton, MA
  • Average high temperature in August: 81°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 (33.6°F).

  • Average low temperature in August: 63°F

The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in August
Newton, MA

Average pressure in August - Newton, MA
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

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Average wind speed in August
Newton, MA

Average wind speed in August - Newton, MA
  • Average wind speed in August: 5.8mph

The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in August
Newton, MA

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

The month with the highest relative humidity is February (78%).
The month with the lowest relative humidity is April (70%).

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Average rainfall in August
Newton, MA

Average rainfall in August - Newton, MA
  • Average rainfall in August: 0.43"

The wettest month (with the highest rainfall) is November (0.67").
The driest month (with the least rainfall) is September (0.24").

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Average rainfall days in August
Newton, MA

Average rainfall days in August - Newton, MA
  • Average rainfall days in August: 7.8 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is February (4.1 days).

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Average snowfall in August
Newton, MA

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

The month with the highest snowfall is December (0.91").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in August
Newton, MA

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

The month with the highest number of snowfall days is January (4.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in August / Average sunshine in August - Newton, 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).

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Average sunshine days in August
Newton, MA

Average sunshine days in August - Newton, MA
  • Average sunshine days in August: 19.9 days

The months with the most sunshine days are January and November (22.5 days).
The month with the least sunshine days is June (17.5 days).

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Average UV index in August
Newton, MA

Average UV index in August - Newton, 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).

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Average cloud cover in August
Newton, MA

Average cloud cover in August - Newton, 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).

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Average visibility in August
Newton, MA

Average visibility in August - Newton, 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).

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Newton, Massachusetts, USA

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