Late spring · Weather & things to do
Indianapolis in May
Indianapolis warms up: highs climb to 73°F (23°C), from 63°F in April, with lows of 53°F (12°C) and about 4.7 in (119 mm) of rain.
It scores 80/100 for comfort, 3rd of 12, which makes it a solid shoulder-season month.
- Avg high
- 73°F (23°C)
- Avg low
- 53°F (12°C)
- Rain
- 4.7 in (119 mm)
- Humidity
- 79%
- Cloud cover
- 62%
- Daylight
- ~14 h 12 min
- Comfort score
- 80/100 · Great
What May feels like
Days are warm, averaging 73°F (23°C), easy weather for being outside from morning to evening.
Lows average 53°F (12°C).
Showers are part of the month, adding up to about 4.7 in (119 mm).
Plan around May
May is shoulder season: good weather, a step below the best months (September & October).
- First warm month: highs reach 73°F, up from 63°F in April.
- Start of the wettest three-month stretch (May – July), which brings about 14.4 in (365 mm) in total.
- Comfort holds steady from April (79 → 80/100).
- May sits inside the May – Oct window our Indiana & Ohio City-Nature Loop recommends.
What to pack for May
- Light, breathable clotheshighs average 73°F
- Sunscreen, sunglasses and a hatstrong sun this month
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost places below are best reached on foot or with short walks
What to do in Indianapolis in May
With conditions on your side, the picks below favor time outside.
St. Elmo Steak House
Downtown steakhouse since 1902, famous for a fiery horseradish shrimp cocktail.
Indianapolis Motor Speedway Museum
Race cars and Indy 500 history at the speedway; grounds tours often run.
Eiteljorg Museum
Museum of Native American and Western art in White River State Park.
Garage Food Hall
Food hall in Bottleworks' old Coca-Cola bottling garage with local vendors.
Indianapolis Cultural Trail
8-mile protected bike and walking path linking downtown's cultural districts.
Why now May scores 80/100 for comfort, good conditions for being outside.
Nearby in May
- Broad Ripple in May~7 mi · highs 73°F, 4.7 in rain · similar daytime temperatures, about as wet
- Downtown Cincinnati in May~99 mi · highs 75°F, 4.6 in rain · 1°C (2°F) warmer by day, about as wet
- Louisville in May~107 mi · highs 75°F, 5.3 in rain · 1°C (2°F) warmer by day, wetter
- Indiana Dunes in May~138 mi · highs 69°F, 4.4 in rain · 2°C (4°F) cooler by day, about as wet
These averages also cover Downtown Indianapolis.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Indianapolis in May: quick answers
Is May a good time to visit Indianapolis?
It's a good shoulder-season choice, scoring 80/100 against a best of 89 in September & October. Expect highs of 73°F (23°C) and 4.7 in (119 mm) of rain. May is inside the May – Oct window our Indiana & Ohio City-Nature Loop recommends.
How hot is Indianapolis in May?
Average highs are 73°F (23°C) and average lows 53°F (12°C), making it the 5th-warmest month by daytime highs.
Does it rain a lot in Indianapolis in May?
Some: about 4.7 in (119 mm) of rain falls across May on average, the 2nd-wettest month of the year. The annual total is about 44.9 in (1141 mm).
What should I pack for Indianapolis in May?
Bring light, breathable clothes (highs average 73°F), sunscreen, sunglasses and a hat (strong sun this month), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most places below are best reached on foot or with short walks).
More on Indianapolis
Routes in season in May
- Indiana & Ohio City-Nature Loop May – Oct
Planning Indianapolis in May?
Share this May plan with your group, poll everyone on dates and keep the packing list in one place.