August weather forecast
Somerville, NJ

Share

Weather in August

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

Temperature

The transition into August marks the average high-temperature at a still warm 82.4°F (28°C), differing minimally from July's 84.2°F (29°C). Somerville records an average nighttime low-temperature of 64.6°F (18.1°C) throughout August.

Heat index

The heat index for August is estimated at a tropical 87.8°F (31°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
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. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In August, the average relative humidity is 75%.

Rainfall

In Somerville, New Jersey, in August, during 15.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, in Somerville, New Jersey, there are 157.9 rainfall days, and 28.19" (716mm) of precipitation is accumulated.

Snowfall

In Somerville, snow does not fall in June through September.

Daylight

In Somerville, the average length of the day in August is 13h and 44min.
On the first day of August in Somerville, 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

In August, the average sunshine in Somerville 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 value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 6 during August leads to these instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Stay sun-safe with clothing that is both closely woven and worn loosely.
[Resources]

Frequently asked questions

How hot is it in Somerville in August?

Somerville in August has an average high-temperature of 82.4°F (28°C) and an average low-temperature of 64.6°F (18.1°C). In August, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is estimated at 87.8°F (31°C).

What is the average humidity in August in Somerville?

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

How many days does it rain in August in Somerville?

In August, in Somerville, New Jersey, the rain falls for 15.5 days. Throughout August, 2.56" (65mm) of precipitation is accumulated.

When it does not snow in Somerville?

June through September are months without snowfall.

What is the average length of the day in August in Somerville?

In August, the average day length is 13h and 44min.

When is the sunrise / sunset in August in Somerville?

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.

How long on average sun shines in August in Somerville?

In Somerville, New Jersey, the average sunshine duration in August is 10h.

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

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

What is the UV index reading in August in Somerville?

In August, the average daily maximum UV index in Somerville is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe 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
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).

[Resources]

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).

[Resources]

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).

[Resources]

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%).

[Resources]

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").

[Resources]

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).

[Resources]

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").

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

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).

[Resources]

Somerville, New Jersey, USA

Weather forecast for your location

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