Indiana Dunes National Park weather in April
April in Indiana Dunes National Park: cold, rainy, with clean air — an excellent time to visit.
#4 of 12 months in Indiana Dunes National Park · #257 of 604 destinations to visit in April · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Indiana Dunes National Park climate normals — April
| Daytime high | 11°C / 52°F | 🧥 cold |
|---|---|---|
| Nighttime low | 5°C / 41°F | |
| Feels like (high) | 8°C / 46°F | |
| Rainfall | 99 mm / 3.9 in | 🌧 rainy |
| Rainy days | 15 days | |
| Humidity | 72% | 💧 humid |
| Dew point | 3°C / 37°F | |
| Sunshine | 9.2 h/day | |
| Daylight | 13.4 h | |
| Wind | 23 km/h / 14 mph | |
| Snowfall | 5.8 cm / 2.3 in | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Indiana Dunes National Park in April — FAQ
- Is April a good time to visit Indiana Dunes National Park?
- April in Indiana Dunes National Park: cold, rainy, with clean air — an excellent time to visit. It ranks #4 of 12 months for Indiana Dunes National Park on SeasonMap's comfort score (81/100).
- What is the weather like in Indiana Dunes National Park in April?
- In April, Indiana Dunes National Park averages a daily high of 11°C and a low of 5°C, with about 98.5 mm of rain over roughly 14.6 rainy days.
- What is the air quality in Indiana Dunes National Park in April?
- Indiana Dunes National Park has a mean US Air Quality Index of about 42 in April.
- Does it snow in Indiana Dunes National Park in April?
- Indiana Dunes National Park sees roughly 5.8 cm of snowfall in April.