July weather forecast
Indianapolis, IN

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The magnificent Monument Circle in Indianapolis, Indiana with the surrounding cityscape
The magnificent Monument Circle in Indianapolis, Indiana with the surrounding cityscape

Weather in July

July rightly earns the distinction of being the hottest month in Indianapolis with an average high temperature of 82°F (27.8°C). The summer sun shines brightly, dominating the city's weather pattern. Although the city is at its warmest, it's a great time for locals and tourists to enjoy water-sports and other outdoor activities. Interestingly, the relative humidity, even at 80%,does not add discomfort to the warm temperature.

Temperature

The warmest period in Indianapolis, Indiana, is July, when temperatures fluctuate between an average high of 82°F (27.8°C) and a low of 66.2°F (19°C).

Heat index

Throughout July, the heat index is evaluated at a tropical 89.6°F (32°C). If one persists in activity during exposure, it could induce weariness and subsequently, heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.

Humidity

The average relative humidity in July is 80%.

Rainfall

In July, the rain falls for 15.7 days. Throughout July, 1.81" (46mm) of precipitation is accumulated. Throughout the year, in Indianapolis, there are 146.4 rainfall days, and 21.14" (537mm) of precipitation is accumulated.

Snowfall

In Indianapolis, snow does not fall in May through October.

Daylight

The average length of the day in July in Indianapolis is 14h and 40min.
On the first day of July, sunrise is at 6:20 am and sunset at 9:16 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 8:58 pm EDT.

Sunshine

With an average of 10.3h of sunshine, July has the most sunshine of the year in Indianapolis.

UV index

The months with the highest UV index in Indianapolis, Indiana, are May 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 radiation for ordinary individuals.
Note: In July, the maximum UV index of 6 translates into these guidelines:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

What time of the year is the hottest in Indianapolis?

Indianapolis's July weather, with an average high temperature of 82°F (27.8°C) and an average low temperature of 66.2°F (19°C), tends to be the warmest of the year.

What are July temperatures in Indianapolis?

In July, in Indianapolis, the average high-temperature is 82°F (27.8°C), and the average low-temperature is 66.2°F (19°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is evaluated at 89.6°F (32°C).

What is the average humidity in July in Indianapolis?

The average relative humidity in July in Indianapolis is 80%.

How many days does it rain in July in Indianapolis?

In Indianapolis, Indiana, in July, during 15.7 rainfall days, 1.81" (46mm) of precipitation is typically accumulated.

When it does not snow in Indianapolis?

In Indianapolis, snow does not fall in May through October.

What is the average length of the day in July in Indianapolis?

In July, the average day length in Indianapolis is 14h and 40min.

What time are sunrise and sunset in July in Indianapolis?

On the first day of July, sunrise is at 6:20 am and sunset at 9:16 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 8:58 pm EDT.

What month has the most sunshine in Indianapolis?

The month with the most sunshine in Indianapolis is July, with an average of 10.3h of sunshine.

How many hours of sunshine does Indianapolis have in July?

In Indianapolis, the average sunshine duration in July is 10.3h.

What is the month with the highest UV index in Indianapolis?

The months with the highest UV index in Indianapolis, Indiana, are May through August, with an average maximum UV index of 6.

What is the UV index intensity in July in Indianapolis?

In Indianapolis, Indiana, the average daily maximum UV index in July is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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 July
Indianapolis, IN

Average temperature in July - Indianapolis, IN
  • Average high temperature in July: 82°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in July: 66.2°F

The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (21°F).

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Average pressure in July
Indianapolis, IN

Average pressure in July - Indianapolis, IN
  • Average pressure in July: 29.98"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in July
Indianapolis, IN

Average wind speed in July - Indianapolis, IN
  • Average wind speed in July: 5.8mph

The windiest months (with the highest average wind speed) are January and February (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

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Average humidity in July
Indianapolis, IN

Average humidity in July - Indianapolis, IN
  • Average humidity in July: 80%

The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (73%).

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Average rainfall in July
Indianapolis, IN

Average rainfall in July - Indianapolis, IN
  • Average rainfall in July: 1.81"

The wettest month (with the highest rainfall) is May (2.68").
The driest month (with the least rainfall) is February (1.22").

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Average rainfall days in July
Indianapolis, IN

Average rainfall days in July - Indianapolis, IN
  • Average rainfall days in July: 15.7 days

The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.8 days).

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Average snowfall in July
Indianapolis, IN

Average snowfall in July - Indianapolis, IN
  • Average snowfall in July: 0"

The month with the highest snowfall is December (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in July
Indianapolis, IN

Average snowfall days in July - Indianapolis, IN
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in July /
Average sunshine in July
Indianapolis, IN

Average daylight in July / Average sunshine in July - Indianapolis, IN
  • Average daylight in July: 14h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in July: 10h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in July
Indianapolis, IN

Average sunshine days in July - Indianapolis, IN
  • Average sunshine days in July: 11.5 days

The month with the most sunshine days is October (18.6 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in July
Indianapolis, IN

Average UV index in July - Indianapolis, IN
  • Average UV index in July: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).

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Average cloud cover in July
Indianapolis, IN

Average cloud cover in July - Indianapolis, IN
  • Average cloud cover in July: 31

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 29).

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Average visibility in July
Indianapolis, IN

Average visibility in July - Indianapolis, IN
  • Average visibility in July: 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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Indianapolis, Indiana, USA

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