August weather forecast
Fairfield, NJ

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Weather in August

August, the last month of the summer in Fairfield, is another warm month, with an average temperature ranging between max 82°F (27.8°C) and min 64.9°F (18.3°C).

Temperature

August brings an average high-temperature of a still warm 82°F (27.8°C), showing a slight difference from July's 83.8°F (28.8°C). Fairfield records an average nighttime low of 64.9°F (18.3°C) in August.

Heat index

Throughout August, the heat index is calculated to be a hot 87.8°F (31°C). If one continues to be active during exposure, it might cause tiredness and subsequent heat cramps.
In the scope of the heat index, its values resonate with shade and light wind conditions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.

Humidity

April and August, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Fairfield, New Jersey, in August, it is raining for 16.1 days, with typically 2.68" (68mm) of accumulated precipitation. Throughout the year, there are 158 rainfall days, and 27.4" (696mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in August is 13h and 46min.
On the first day of the month, sunrise is at 5:54 am and sunset at 8:12 pm. On the last day of August, sunrise is at 6:23 am and sunset at 7:30 pm EDT.

Sunshine

In Fairfield, the average sunshine in August is 10.1h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 during August translates into the following directions:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in August?

The high-temperature, in August, in Fairfield, records 82°F (27.8°C), while the low-temperature is 64.9°F (18.3°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 87.8°F (31°C).

What is the least humid month?

The months with the lowest humidity are April and August, with an average relative humidity of 73%.

What is the average humidity in August?

The average relative humidity in August is 73%.

How much does it rain in August?

In Fairfield, during August, the rain falls for 16.1 days and regularly aggregates up to 2.68" (68mm) of precipitation.

When it does not snow?

June through October are months without snowfall in Fairfield.

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

The average day length in August is 13h and 46min.

What time are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:54 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 7:30 pm EDT.

How long on average sun shines in August?

The average sunshine duration in August is 10.1h.

When is the highest UV index?

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

What is the UV index reading in August?

In August, the average daily maximum UV index in Fairfield is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Fairfield, NJ

Average temperature in August - Fairfield, NJ
  • Average high temperature in August: 82°F

The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (22.6°F).

Average pressure in August
Fairfield, NJ

Average pressure in August - Fairfield, NJ
  • Average pressure in August: 29.98"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
Fairfield, NJ

Average wind speed in August - Fairfield, NJ
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).

Average humidity in August
Fairfield, NJ

Average humidity in August - Fairfield, NJ
  • Average humidity in August: 73%

The months with the highest relative humidity are February and December (79%).
The months with the lowest relative humidity are April and August (73%).

Average rainfall in August
Fairfield, NJ

Average rainfall in August - Fairfield, NJ
  • Average rainfall in August: 2.68"

The wettest month (with the highest rainfall) is July (3.15").
The driest month (with the least rainfall) is January (1.57").

Average rainfall days in August
Fairfield, NJ

Average rainfall days in August - Fairfield, NJ
  • Average rainfall days in August: 16.1 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (7.8 days).

Average snowfall in August
Fairfield, NJ

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

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August, September and October (0").

Average snowfall days in August
Fairfield, NJ

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

The month with the highest number of snowfall days is February (7 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
Fairfield, NJ

Average daylight in August / Average sunshine in August - Fairfield, NJ
  • Average daylight in August: 13h and 5min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in August: 10h and 1min

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
Fairfield, NJ

Average sunshine days in August - Fairfield, NJ
  • Average sunshine days in August: 12.1 days

The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (10.7 days).

Average UV index in August
Fairfield, NJ

Average UV index in August - Fairfield, 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
Fairfield, NJ

Average cloud cover in August - Fairfield, NJ
  • Average cloud cover in August: 33

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

Average visibility in August
Fairfield, NJ

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

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

Fairfield, New Jersey, USA

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