May weather forecastGatlinburg, TN

May
Weather in May
Featuring an average high of 74.3°F (23.5°C), May hints at the imminent arrival of summer. The climate remains genial, and the escalating heat is still at bay. This month helps the city exude vivacity, amplified by nature thriving around. Sunshine becomes a frequent visitor, enabling a pleasant weather perfect for outdoor activities. With beautifully clear skies, May can be considered one of the best months to visit Gatlinburg.Temperature
May's onset in Gatlinburg brings a subtle temperature rise, moving from a comfortable 65.8°F (18.8°C) in April to a warm 74.3°F (23.5°C). Nighttime temperature dips to a mean of 52.9°F (11.6°C) during May.Humidity
In Gatlinburg, the average relative humidity in May is 77%.Rainfall
In May, in Gatlinburg, the rain falls for 19.6 days. Throughout May, 3.15" (80mm) of precipitation is accumulated. In Gatlinburg, during the entire year, the rain falls for 196.8 days and collects up to 39.72" (1009mm) of precipitation.Snowfall
In Gatlinburg, snow does not fall in May through September.Daylight
In Gatlinburg, the average length of the day in May is 14h and 4min.On the first day of the month, sunrise is at 6:40 am and sunset at 8:21 pm. On the last day of May, sunrise is at 6:19 am and sunset at 8:44 pm EDT.
Sunshine
In Gatlinburg, Tennessee, the average sunshine in May is 10h.UV index
The months with the highest UV index in Gatlinburg are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 6 during May translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Gatlinburg, TN
- Average high temperature in May: 74.3°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in May: 52.9°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).
Average pressure in May
Gatlinburg, TN
- Average pressure in May: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in May
Gatlinburg, TN
- Average wind speed in May: 4.7mph
The windiest month (with the highest average wind speed) is April (5.7mph).
The calmest month (with the lowest average wind speed) is August (3.5mph).
Average humidity in May
Gatlinburg, TN
- Average humidity in May: 77%
The months with the highest relative humidity are February and December (80%).
The months with the lowest relative humidity are June, July, August and November (76%).
Average rainfall in May
Gatlinburg, TN
- Average rainfall in May: 3.15"
The wettest month (with the highest rainfall) is July (4.37").
The driest month (with the least rainfall) is September (2.44").
Average rainfall days in May
Gatlinburg, TN
- Average rainfall days in May: 19.6 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is November (11.9 days).
Average snowfall in May
Gatlinburg, TN
- Average snowfall in May: 0"
The month with the highest snowfall is February (3.35").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in May
Gatlinburg, TN
- Average snowfall days in May: 0.1 days
The month with the highest number of snowfall days is January (7.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Gatlinburg, TN
- Average daylight in May: 14h and 6min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in May: 10h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in May
Gatlinburg, TN
- Average sunshine days in May: 9.8 days
The month with the most sunshine days is October (16.7 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in May
Gatlinburg, TN
- Average UV index in May: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in May
Gatlinburg, TN
- Average cloud cover in May: 35
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in May
Gatlinburg, TN
- Average visibility in May: 5mi
The months with the highest visibility are June, July, August and November (6mi).
The months with the lowest visibility are January, February, March, April, May, September, October and December (5mi).





