Great Smoky Mountains National Park weather in April
April in Great Smoky Mountains National Park: cool, rainy, with clean air — an excellent time to visit.
#3 of 12 months in Great Smoky Mountains National Park · #133 of 604 destinations to visit in April · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Great Smoky Mountains National Park climate normals — April
| Daytime high | 16°C / 62°F | 🙂 cool |
|---|---|---|
| Nighttime low | 5°C / 42°F | |
| Feels like (high) | 15°C / 59°F | |
| Rainfall | 135 mm / 5.3 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 70% | 💧 humid |
| Dew point | 4°C / 40°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 13.1 h | |
| Wind | 14 km/h / 9 mph | |
| Snowfall | 1.4 cm / 0.6 in | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Great Smoky Mountains National Park in April — FAQ
- Is April a good time to visit Great Smoky Mountains National Park?
- April in Great Smoky Mountains National Park: cool, rainy, with clean air — an excellent time to visit. It ranks #3 of 12 months for Great Smoky Mountains National Park on SeasonMap's comfort score (86/100).
- What is the weather like in Great Smoky Mountains National Park in April?
- In April, Great Smoky Mountains National Park averages a daily high of 16.4°C and a low of 5.4°C, with about 135.1 mm of rain over roughly 12.4 rainy days.
- What is the air quality in Great Smoky Mountains National Park in April?
- Great Smoky Mountains National Park has a mean US Air Quality Index of about 40 in April.
- Does it snow in Great Smoky Mountains National Park in April?
- Great Smoky Mountains National Park sees roughly 1.4 cm of snowfall in April.