The best times to visit Indianapolis for ideal weather are

April 23rd to July 8th

based on average temperature and humidity from NOAA (the National Oceanic and Atmospheric Administration). Read below for more weather and travel details.


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Other Indianapolis Travel Info

Weather in Indianapolis

Temperature

Average temperatures in Indianapolis vary drastically. Considering humidity, temperatures feel cold for about half of the year and otherwise nice with a chance of rain or snow throughout most of the year. The area is less temperate than some — in the 21st percentile for pleasant weather — compared to tourist destinations worldwide. Weeks with ideal weather are listed above. If you’re looking for the very warmest time to visit Indianapolis, the hottest months are July, August, and then June. See average monthly temperatures below. The warmest time of year is generally mid July where highs are regularly around 88.1°F (31.2°C) with temperatures rarely dropping below 66°F (18.9°C) at night.

Indianapolis Temperatures (Fahrenheit)

Key
High
Average
Low

Indianapolis Temperatures (Celsius)

Key
High
Average
Low

“Feels-Like” Temperatures

The way we experience weather isn’t all about temperature. Higher temperatures affect us much more at higher humidity, and colder temperatures feel piercing with high winds. Our perceived temperatures factor in humidity and wind chill to better represent how hot or cold the day feels to a person.

Indianapolis Perceived Temperature (F)

Key
High
Average
Low

Indianapolis Perceived Temperature (C)

Key
High
Average
Low

 

Average Indianapolis Temperatures by Month

Daily highs (averaged for the month) usually give the best indication of the weather. A significantly lower mean and low generally just means it gets colder at night.

Show Fahrenheit

MonthAvg. High (°F)Avg. Mean (°F)Avg. Low (°F)
Jan372717.7
Feb38.828.319.3
Mar5643.332.1
Apr67.454.341.8
May76.965.153.4
Jun84.873.462.8
Jul86.975.865.2
Aug8775.264.1
Sep8168.357.2
Oct68.655.644.3
Nov54.743.333
Dec42.833.725.6

Show Celsius

MonthAvg. High (°C)Avg. Mean (°C)Avg. Low (°C)
Jan2.8-2.8-7.9
Feb3.8-2.1-7.1
Mar13.36.30.1
Apr19.712.45.4
May24.918.411.9
Jun29.32317.1
Jul30.524.318.4
Aug30.62417.8
Sep27.220.214
Oct20.313.16.8
Nov12.66.30.6
Dec60.9-3.6


 

Precipitation (Rain or Snow)

If dry weather is what you’re after, the months with the lowest chance of significant precipitation in Indianapolis are August, January, and then October. Note that we define “significant precipitation” as .1 inches or more in this section. The lowest chance of rain or snow occurs around early November. For example, on the week of November 5th there is 1 day of precipitation on average. By contrast, it’s most likely to rain or snow in late April with an average of 3 days of significant precipitation the week of April 23rd.

When can you find snow in Indianapolis? Weather stations report a good amount of seasonal snow likely to be deepest around February, especially close to early to mid February. The best time to ski (if at all) in Indianapolis is often around around February 12th when fresh powder is deepest. Please note that a value of 0 for snow in the graph below may either mean there was no snow, or that snow is unreported.

Chance of Precipitation

The graph below shows the % chance of rainy and snowy days in Indianapolis.

Key
Days with precipitation

Snow on the Ground

The graph below shows the average snow on the ground in Indianapolis (in).

Key
Snow depth

Average Rain and Snow by Month

Show Inches

MonthDaily Chance of RainAverage Snow Depth (in)Total Precipitation (in)
Jan17%2.72.9
Feb22%4.22.9
Mar22%2.93.9
Apr32%05.3
May27%04.5
Jun32%06
Jul22%04.4
Aug15%02.8
Sep19%03.1
Oct19%03
Nov20%1.53.1
Dec29%2.74.3

Show Centimeters

MonthDaily Chance of RainAverage Snow Depth (cm)Total Precipitation (cm)
Jan176.97.4
Feb2210.77.4
Mar227.49.9
Apr32013.5
May27011.4
Jun32015.2
Jul22011.2
Aug1507.1
Sep1907.9
Oct1907.6
Nov203.87.9
Dec296.910.9

 

Humidity and Wind

Indianapolis has some very humid months, with other comfortably humid months. The least humid month is April (50.5% relative humidity), and the most humid month is December (70.2%).

Wind in Indianapolis is usually moderate. The windiest month is April, followed by January and February. April’s average wind speed of around 9.6 knots (11.1 MPH or 17.8 KPH) is considered “a gentle breeze.” Maximum sustained winds (the highest speed for the day lasting more than a few moments) are at their highest in early April where average top sustained speeds reach 17.9 knots, which is considered a fresh breeze.

Relative Humidity (%)

The graph below shows the average % humidity by month in Indianapolis.

Key
Avg. Relative Humidity

Wind

The graph below shows wind speed (max and average) in knots.

Key
Max Sustained Wind
Average Daily Wind

Average Wind Speeds

Show Wind Speeds

All wind speeds are in knots. 1 knot = 1.15 MPH or 1.85 KPH.

MonthAvg. WindAvg. Wind FeelSustained High WindHigh Wind Feel
Jan9.5Gentle breeze16.3Significant breeze
Feb9.4Gentle breeze16.5Significant breeze
Mar9.2Gentle breeze15.9Significant breeze
Apr9.6Gentle breeze17.4Strong breeze
May7.9Gentle breeze15Significant breeze
Jun7.5Gentle breeze15.8Significant breeze
Jul6.5Light breeze13.5Significant breeze
Aug6.1Light breeze12.8Significant breeze
Sep6.6Light breeze12.9Significant breeze
Oct7.9Gentle breeze14.3Significant breeze
Nov8.4Gentle breeze15Significant breeze
Dec8.7Gentle breeze15.1Significant breeze

Show Relative Humidity by Month

MonthAvg. Relative Humidity
Jan64.7%
Feb61.8%
Mar53.7%
Apr50.5%
May55.7%
Jun57.8%
Jul57.5%
Aug56%
Sep55.6%
Oct55.8%
Nov57.7%
Dec70.2%

 

Is it Safe to Travel to Indianapolis?

Our best data indicates this area is generally safe. As of Oct 07, 2019 there are no travel advisories or warnings for the United States; exercise normal security precautions. Check this page for any recent changes or regions to avoid: Travel Advice and Advisories. This advisory was last updated on Sep 23, 2019.


 

The Busiest and Least Crowded Months

The busiest month for tourism in Indianapolis, IN, US is June, followed by July and April. Prices for hotels and flights will be most expensive during these months, though you can save if you purchase well in advance. Tourists are unlikely to visit Indianapolis in November. Those willing to visit at these times will likely find it the least expensive month.

Estimated Tourism by Month

 

Most Popular Months to Visit

Key
Tourists Seeking Accommodations

Tourism graph is based on Google searches for services used by tourists relative to the rest of the year. Tourism data for this area is extrapolated based on nearby areas. Displayed data is calculated relative to the peak, so a score of 40.4 in November means 40.4% of the tourists vs. June.


Overall Indianapolis Travel Experience by Season

Spring (March through May)

Humidity and temperatures combine to make this season feel moderately cold. Highs range from 82.7°F (28.2°C) and 42.5°F (5.8°C) with far warmer temperatures in the later months. Rain is somewhat common with 7 to 10 days of significant precipitation per month. Spring is the second busiest for tourism, which makes it a good time for those looking for things to do.

Summer (June through August)

The middle-year months have very comfortable weather with high temperatures that are quite warm. These months see moderate precipitation with 5 to 10 days of precipitation per month. June – August is the busiest season for tourism in Indianapolis, so lodging and other accommodations may cost more than usual.

Fall (September through November)

Fall daily highs range from 85°F (29.4°C) and 48.5°F (9.2°C), which will feel chilly given the humidity and wind. It rains or snows a significant amount: approximately 6 days per month. Tourism is the slowest during these months due to the weather, so hotels may be affordably priced.

Winter (December through February)

Weather is far too cold this time of year in Indianapolis to be enjoyable for warm weather travelers. The average high during this season is between 43.7°F (6.5°C) and 34.1°F (1.2°C). On average, it rains or snows a fair amount: 5 to 9 times per month. These times of year are fairly slow with tourists.

 

Best Times to Travelthe United States › Indianapolis, IN, US


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