May weather forecast
Edisto Beach, SC

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Weather in May

By May, the pleasant spring weather transitions into the beginnings of summer. The blooming flowers paint a vibrant picture, while the increasing temperature makes cooling off in the ocean a favorite pastime for locals and tourists alike. The lengthening days add more hours of sunshine, attracting a higher number of tourists to the beach. With summer nearly in full swing, May experiences the highest rainfall for the first half of the year, with increments of up to 1.22" (31mm).

Temperature

In Edisto Beach, the average high-temperature in May slightly rises, from 74.3°F (23.5°C) in April, to a still moderately hot 81.1°F (27.3°C). In Edisto Beach, the nighttime temperature averages to an enjoyable 66.7°F (19.3°C) during May.

Heat index

For May, the heat index is computed to be a hot 86°F (30°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. If directly exposed to the sun, the heat index could rise by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In Edisto Beach, the average relative humidity in May is 75%.

Rainfall

In Edisto Beach, in May, it is raining for 11.4 days, with typically 0.83" (21mm) of accumulated precipitation. In Edisto Beach, during the entire year, the rain falls for 118.7 days and collects up to 10.63" (270mm) of precipitation.

Snowfall

In Edisto Beach, South Carolina, snow does not fall in February through November.

Daylight

In May, the average length of the day is 13h and 50min.
On the first day of the month, sunrise is at 6:33 am and sunset at 8:02 pm. On the last day of May, in Edisto Beach, sunrise is at 6:14 am and sunset at 8:23 pm EDT.

Sunshine

In Edisto Beach, South Carolina, the average sunshine in May is 10.5h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in May?

The average high-temperature, in May, in Edisto Beach, is 81.1°F (27.3°C), while the average low-temperature is 66.7°F (19.3°C). In May, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 86°F (30°C).

What is the average humidity in May?

In Edisto Beach, the average relative humidity in May is 75%.

How many days does it rain in May?

In Edisto Beach, in May, it is raining for 11.4 days, with typically 0.83" (21mm) of accumulated precipitation.

When it does not snow?

In Edisto Beach, snow does not fall in February through November.

What is the average length of the day in May?

In May, the average day length is 13h and 50min.

When is the sunrise / sunset in May?

On the first day of May, sunrise is at 6:33 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 8:23 pm EDT.

How long on average sun shines in May?

In May, the average sunshine duration is 10.5h.

When is the highest UV index?

The months with the highest UV index are May through August, with an average maximum UV index of 7.

What is the UV index intensity in May?

The average daily maximum UV index in May is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Edisto Beach, SC

Average temperature in May - Edisto Beach, SC
  • Average high temperature in May: 81.1°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (57.2°F).

  • Average low temperature in May: 66.7°F

The month with the highest average low temperature is July (76.5°F).
The coldest month (with the lowest average low temperature) is January (43.2°F).

Average pressure in May
Edisto Beach, SC

Average pressure in May - Edisto Beach, SC
  • Average pressure in May: 30.03"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in May
Edisto Beach, SC

Average wind speed in May - Edisto Beach, SC
  • Average wind speed in May: 7.4mph

The windiest month (with the highest average wind speed) is April (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.3mph).

Average humidity in May
Edisto Beach, SC

Average humidity in May - Edisto Beach, SC
  • Average humidity in May: 75%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and March (72%).

Average rainfall in May
Edisto Beach, SC

Average rainfall in May - Edisto Beach, SC
  • Average rainfall in May: 0.83"

The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is January (0.31").

Average rainfall days in May
Edisto Beach, SC

Average rainfall days in May - Edisto Beach, SC
  • Average rainfall days in May: 11.4 days

The month with the highest number of rainy days is August (16.9 days).
The month with the least rainy days is November (5.7 days).

Average snowfall days in May
Edisto Beach, SC

Average snowfall days in May - Edisto Beach, SC
  • Average snowfall days in May: 0 days

The months with the highest number of snowfall days are January and December (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Edisto Beach, SC

Average daylight in May / Average sunshine in May - Edisto Beach, SC
  • Average daylight in May: 13h and 5min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in May: 10h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

Average sunshine days in May
Edisto Beach, SC

Average sunshine days in May - Edisto Beach, SC
  • Average sunshine days in May: 15.6 days

The month with the most sunshine days is January (23.3 days).
The month with the least sunshine days is August (9.6 days).

Average UV index in May
Edisto Beach, SC

Average UV index in May - Edisto Beach, SC
  • Average UV index in May: 7

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 3).

Average cloud cover in May
Edisto Beach, SC

Average cloud cover in May - Edisto Beach, SC
  • Average cloud cover in May: 28

The months with the most cloud cover are February and December (Cloud cover 39).
The months with the least cloud cover are June and July (Cloud cover 25).

Average visibility in May
Edisto Beach, SC

Average visibility in May - Edisto Beach, SC
  • Average visibility in May: 6mi

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

Edisto Beach, South Carolina, USA

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