Great Smoky Mountains National Park Weather in April
April in Great Smoky Mountains National Park sees daytime temperatures around 18°C (64°F) and lows of 3°C (37°F) at night. With around 159 mm (6.3 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Great Smoky Mountains National Park in April
Historically, approximately 14 days this month are expected to have rain, averaging 159 mm (6.3 in). When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Great Smoky Mountains National Park in April
Expect highs of 18°C (64°F) in Great Smoky Mountains National Park in April, with nights dropping to around 3°C (37°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. Nights fall to 3°C (37°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Great Smoky Mountains National Park in April
Expect sunny days throughout the month, with an estimated 258 hours of sunshine. This makes it a pleasant time to visit Great Smoky Mountains National Park.Should you favor a climate that's both dry and comfortably warm, May, June, August and September typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Great Smoky Mountains National Park's climate page.
Great Smoky Mountains National Park Temperature in April
Min Temperature
3°C (37°F)
Max Temperature
18°C (64°F)
Chance of Rain
47%
Precipitation
159 mm (6.3 in)
Rainy days
14 days
Humidity
63% *
Sunshine
258 hours *
Percentage Sunshine
66% *
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Great Smoky Mountains National Park typically stay consistent throughout April, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 6°C (43°F) to 11°C (52°F).
Average temperatures in April
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in April
Historical weather for Great Smoky Mountains National Park in April
Browse day-by-day weather records for Great Smoky Mountains National Park spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Great Smoky Mountains National Park historical weather extremes in April
Based on 50 years of weather observations (1976-2026), these are the most extreme conditions recorded in Great Smoky Mountains National Park.
- The warmest day in April was on April 27, 1986, with a maximum of 32°C (90°F).
- The lowest overnight temperature recorded in April was -5°C (23°F) (April 1, 1987).
- The heaviest April precipitation occurred on April 4, 1977, when 87 mm (3.4 in) of precipitation fell.
Best Places in the United States of America in April
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in April →
perfect weather
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tolerable
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What to Wear in Great Smoky Mountains National Park in April
Comfortable temperatures call for an easy wardrobe in April. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. It's going to pour! Pack a good poncho and prepare for very wet conditions. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Great Smoky Mountains National Park in April
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Great Smoky Mountains National Park's climate page.
