August weather forecast
Somerville, NJ

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Weather in August

The last month of the summer, August, is another warm month in Somerville, New Jersey, with an average temperature fluctuating between 82.4°F (28°C) and 64.6°F (18.1°C).

Temperature

August is marked by an average high-temperature of a still moderately hot 82.4°F (28°C), almost identical to the preceding month. Somerville, in August, observes a steady average low-temperature of 64.6°F (18.1°C).

Heat index

In August, the heat index is estimated at a tropical 87.8°F (31°C). Persisting in activity during long-term exposure might induce weariness, with subsequent heat cramps.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

In Somerville, the average relative humidity in August is 75%.

Rainfall

In Somerville, during August, the rain falls for 15.5 days and regularly aggregates up to 2.56" (65mm) of precipitation. In Somerville, during the entire year, the rain falls for 157.9 days and collects up to 28.19" (716mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

The average length of the day in August in Somerville is 13h and 44min.
On the first day of August, sunrise is at 5:56 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:31 pm EDT.

Sunshine

The average sunshine in August is 10h.

UV index

June through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during August leads to these instructions:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Aug 24, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in August?

The high-temperature in Somerville during August is 82.4°F (28°C) and the low-temperature is 64.6°F (18.1°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 75%.

How much does it rain in August?

In Somerville, in August, during 15.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

How many hours of daylight does Somerville have in August?

The average day length in August is 13h and 44min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:56 am and sunset at 8:13 pm. On the last day of the month, sunrise is at 6:25 am and sunset at 7:31 pm EDT.

How many hours of sunshine does Somerville have in August?

The average sunshine duration in August is 10h.

When is 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?

The average daily maximum UV index in August is 6. A UV Index reading of 6 to 7 represents a high hazard to health 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
Somerville, NJ

Average temperature in August - Somerville, NJ
  • Average high temperature in August: 82.4°F

The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (35.6°F).

  • Average low temperature in August: 64.6°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).

Average pressure in August
Somerville, NJ

Average pressure in August - Somerville, NJ
  • Average pressure in August: 29.99"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in August
Somerville, NJ

Average wind speed in August - Somerville, NJ
  • Average wind speed in August: 5.3mph

The windiest month (with the highest average wind speed) is March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in August
Somerville, NJ

Average humidity in August - Somerville, NJ
  • Average humidity in August: 75%

The months with the highest relative humidity are February, October and December (79%).
The month with the lowest relative humidity is April (74%).

Average rainfall in August
Somerville, NJ

Average rainfall in August - Somerville, NJ
  • Average rainfall in August: 2.56"

The wettest month (with the highest rainfall) is December (2.91").
The driest month (with the least rainfall) is September (1.54").

Average rainfall days in August
Somerville, NJ

Average rainfall days in August - Somerville, NJ
  • Average rainfall days in August: 15.5 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (9 days).

Average snowfall in August
Somerville, NJ

Average snowfall in August - Somerville, NJ
  • Average snowfall in August: 0"

The month with the highest snowfall is March (2.83").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in August
Somerville, NJ

Average snowfall days in August - Somerville, NJ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Somerville, NJ

Average daylight in August / Average sunshine in August - Somerville, NJ
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

Average sunshine days in August
Somerville, NJ

Average sunshine days in August - Somerville, NJ
  • Average sunshine days in August: 13.1 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (11.7 days).

Average UV index in August
Somerville, NJ

Average UV index in August - Somerville, NJ
  • 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
Somerville, NJ

Average cloud cover in August - Somerville, NJ
  • Average cloud cover in August: 34

The months with the most cloud cover are February and December (Cloud cover 49).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in August
Somerville, NJ

Average visibility in August - Somerville, NJ
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are May and September (5mi).

Somerville, New Jersey, USA

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