June weather forecast
Smyrna, SC

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Weather in June

June, the first month of the summer in Smyrna, is a hot month, with an average temperature varying between 65.8°F (18.8°C) and 87.8°F (31°C).

Temperature

The arrival of June signals a slight increase in the average high-temperature, moving from a warm 79.3°F (26.3°C) in May to a hot 87.8°F (31°C). Smyrna receives a consistent average low-temperature of 65.8°F (18.8°C) in June, a substantial dip from the day's heat.

Heat index

The heat index for June is evaluated at a sweltering 100.4°F (38°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in June is 71%.

Rainfall

In Smyrna, in June, during 14.8 rainfall days, 2.48" (63mm) of precipitation is typically accumulated. In Smyrna, during the entire year, the rain falls for 150.1 days and collects up to 27.68" (703mm) of precipitation.

Snowfall

April through November are months without snowfall.

Daylight

The month with the longest days is June, with an average of 14h and 30min of daylight.
On the first day of June, sunrise is at 6:12 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:43 pm EDT.

Sunshine

The month with the most sunshine is June, with an average of 10.8h of sunshine.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.
Note: In June, the maximum UV index of 6 transforms into these recommendations:
Take precautions against overexposure. Protection against sun damage is needed. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Updated: Jun 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during June?

In Smyrna, in June, the average high-temperature is 87.8°F (31°C), and the average low-temperature is 65.8°F (18.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in June is evaluated at 100.4°F (38°C).

What is the average humidity in June?

In Smyrna, South Carolina, the average relative humidity in June is 71%.

How many days does it rain in June?

In Smyrna, in June, during 14.8 rainfall days, 2.48" (63mm) of precipitation is typically accumulated.

When it does not snow?

In Smyrna, snow does not fall in April through November.

When are the longest days?

The month with the longest days is June, with an average of 14h and 30min of daylight.

How many hours of daylight does Smyrna have in June?

The average day length in June is 14h and 29min.

When are sunrise and sunset in June?

On the first day of June, sunrise is at 6:12 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:15 am and sunset at 8:43 pm EDT.

What month has the most sunshine in Smyrna?

The month with the most sunshine is June, with an average of 10.8h of sunshine.

How many hours of sunshine does Smyrna have in June?

The average sunshine duration in June is 10.8h.

What are the months with the highest UV index?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in June?

The average daily maximum UV index in June is 6. A UV Index of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in June
Smyrna, SC

Average temperature in June - Smyrna, SC
  • Average high temperature in June: 87.8°F

The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (48.7°F).

  • Average low temperature in June: 65.8°F

The month with the highest average low temperature is July (68.7°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).

Average pressure in June
Smyrna, SC

Average pressure in June - Smyrna, SC
  • Average pressure in June: 29.98"Hg

The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in June
Smyrna, SC

Average wind speed in June - Smyrna, SC
  • Average wind speed in June: 4.7mph

The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is August (4.1mph).

Average humidity in June
Smyrna, SC

Average humidity in June - Smyrna, SC
  • Average humidity in June: 71%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is July (70%).

Average rainfall in June
Smyrna, SC

Average rainfall in June - Smyrna, SC
  • Average rainfall in June: 2.48"

The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is October (1.73").

Average rainfall days in June
Smyrna, SC

Average rainfall days in June - Smyrna, SC
  • Average rainfall days in June: 14.8 days

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (8.6 days).

Average snowfall in June
Smyrna, SC

Average snowfall in June - Smyrna, SC
  • Average snowfall in June: 0"

The month with the highest snowfall is December (2.01").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in June
Smyrna, SC

Average snowfall days in June - Smyrna, SC
  • Average snowfall days in June: 0 days

The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in June /
Average sunshine in June
Smyrna, SC

Average daylight in June / Average sunshine in June - Smyrna, SC
  • Average daylight in June: 14h and 3min

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 June: 10h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in June
Smyrna, SC

Average sunshine days in June - Smyrna, SC
  • Average sunshine days in June: 13.7 days

The month with the most sunshine days is October (20.9 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in June
Smyrna, SC

Average UV index in June - Smyrna, SC
  • Average UV index in June: 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 and December (UV index 2).

Average cloud cover in June
Smyrna, SC

Average cloud cover in June - Smyrna, SC
  • Average cloud cover in June: 30

The month with the most cloud cover is December (Cloud cover 43).
The months with the least cloud cover are June and July (Cloud cover 30).

Average visibility in June
Smyrna, SC

Average visibility in June - Smyrna, SC
  • Average visibility in June: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Smyrna, South Carolina, USA

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