May weather forecast
Edisto Island, SC

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Weather in May

May, the last month of the spring in Edisto Island, is also a moderately hot month, with an average temperature fluctuating between 81.1°F (27.3°C) and 66.7°F (19.3°C).

Temperature

With the onset of May, Edisto Island's average high-temperature sees a modest rise, moving from April's 74.3°F (23.5°C) to a still moderately hot 81.1°F (27.3°C). Nighttime temperatures hover around an average low of 66.7°F (19.3°C) in May.

Heat index

May's heat index is estimated at a hot 86°F (30°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly important for children. Youths are typically more endangered than adults since they usually sweat less. Their larger skin surface concerning their smaller bodies and higher heat production due to activity further adds to their vulnerability.

Humidity

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

Rainfall

In Edisto Island, during May, the rain falls for 11.4 days and regularly aggregates up to 0.83" (21mm) of precipitation. In Edisto Island, during the entire year, the rain falls for 118.7 days and collects up to 10.63" (270mm) of precipitation.

Snowfall

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

Daylight

The average length of the day in May 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, sunrise is at 6:14 am and sunset at 8:23 pm EDT.

Sunshine

In May, the average sunshine in Edisto Island is 10.5h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index in Edisto Island. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: A maximum daily UV index of 7 during May morphs into the following directions:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Edisto Island in May?

Edisto Island in May has an average high-temperature of 81.1°F (27.3°C) and an average low-temperature of 66.7°F (19.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in May is estimated at 86°F (30°C).

What is the average humidity in May in Edisto Island?

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

How much does it rain in Edisto Island in May?

In Edisto Island, South Carolina, during May, the rain falls for 11.4 days and regularly aggregates up to 0.83" (21mm) of precipitation.

When it does not snow in Edisto Island?

February through November are months without snowfall in Edisto Island.

What is the average length of the day in May in Edisto Island?

The average day length in May is 13h and 50min.

What time are sunrise and sunset in May in Edisto Island?

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

How long on average sun shines in May in Edisto Island?

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

When is the highest UV index in Edisto Island?

May through August, with an average maximum UV index of 7, are months with the highest UV index in Edisto Island, South Carolina.

What is the UV index reading in May in Edisto Island?

In May, the average daily maximum UV index in Edisto Island is 7. A UV Index of 6 to 7 symbolizes a high hazard to health 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 Island, SC

Average temperature in May - Edisto Island, 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 Island, SC

Average pressure in May - Edisto Island, 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 Island, SC

Average wind speed in May - Edisto Island, 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 Island, SC

Average humidity in May - Edisto Island, 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 Island, SC

Average rainfall in May - Edisto Island, 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 Island, SC

Average rainfall days in May - Edisto Island, 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 Island, SC

Average snowfall days in May - Edisto Island, 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 Island, SC

Average daylight in May / Average sunshine in May - Edisto Island, 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 Island, SC

Average sunshine days in May - Edisto Island, 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 Island, SC

Average UV index in May - Edisto Island, 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 Island, SC

Average cloud cover in May - Edisto Island, 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 Island, SC

Average visibility in May - Edisto Island, 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 Island, South Carolina, USA

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