Louisville weather in April
April in Louisville: nice, rainy, with clean air — an excellent time to visit.
#4 of 12 months in Louisville · #350 of 897 destinations to visit in April · comfort 83/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Louisville in April
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Louisville climate normals — April
| Daytime high | 19°C / 66°F | 😎 nice |
|---|---|---|
| Nighttime low | 8°C / 46°F | |
| Rainfall | 119 mm / 4.7 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 67% | 💧 humid |
| Dew point | 6°C / 43°F | |
| Sunshine | 8.9 h/day | |
| Daylight | 13.2 h | |
| Wind | 17 km/h / 10 mph | |
| Snowfall | 0.5 cm / 0.2 in | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Louisville in April — FAQ
- Is April a good time to visit Louisville?
- April in Louisville: nice, rainy, with clean air — an excellent time to visit. It ranks #4 of 12 months for Louisville on SeasonMap's comfort score (83/100).
- What is the weather like in Louisville in April?
- In April, Louisville averages a daily high of 18.8°C and a low of 7.9°C, with about 119.4 mm of rain over roughly 11.6 rainy days.
- What is the air quality in Louisville in April?
- Louisville has a mean US Air Quality Index of about 41 in April.