May weather forecast
Seabrook, SC

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Weather in May

May, the last month of the spring in Seabrook, is also a moderately hot month, with temperature in the range of an average low of 66.2°F (19°C) and an average high of 82.2°F (27.9°C).

Temperature

The shift from April to May is marked by a slight increase in the average high-temperature, moving from a warm 75.7°F (24.3°C) to a still moderately hot 82.2°F (27.9°C). Seabrook, during May nights, observes an average temperature of 66.2°F (19°C).

Heat index

The heat index value for May is appraised at a hot 87.8°F (31°C). Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
In reference to the heat index, it's for places in shade and with a slight wind. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.

Humidity

In May, the average relative humidity in Seabrook is 74%.

Rainfall

In Seabrook, in May, during 15.3 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. Throughout the year, there are 166.9 rainfall days, and 33.9" (861mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall in Seabrook, South Carolina.

Daylight

In May, the average length of the day is 13h and 50min.
On the first day of May in Seabrook, South Carolina, sunrise is at 6:35 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:25 pm EDT.

Sunshine

In May, the average sunshine is 10.3h.

UV index

May through August, with an average maximum UV index of 7, are months with the highest UV index. 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: In May, a daily maximum UV index of 7 leads to the following instructions:
Ward off overexposure. Defence against solar harm is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Seabrook in May?

An average high-temperature, in May, in Seabrook, is 82.2°F (27.9°C) and the average low-temperature is 66.2°F (19°C). In May, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is appraised at 87.8°F (31°C).

What is the average humidity in May in Seabrook?

In Seabrook, South Carolina, the average relative humidity in May is 74%.

How many days does it rain in May in Seabrook?

In Seabrook, South Carolina, in May, it is raining for 15.3 days, with typically 2.8" (71mm) of accumulated precipitation.

When it does not snow in Seabrook?

In Seabrook, South Carolina, snow does not fall in February through December.

What is the average length of the day in May in Seabrook?

In May, the average day length in Seabrook, South Carolina, is 13h and 50min.

When are sunrise and sunset in May in Seabrook?

On the first day of May, sunrise is at 6:35 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:16 am and sunset at 8:25 pm EDT.

How long on average sun shines in May in Seabrook?

The average sunshine duration in May in Seabrook is 10.3h.

What is the month with the highest UV index in Seabrook?

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

What is the UV index intensity in May in Seabrook?

The average daily maximum UV index in May in Seabrook is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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 May
Seabrook, SC

Average temperature in May - Seabrook, SC
  • Average high temperature in May: 82.2°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (57.7°F).

  • Average low temperature in May: 66.2°F

The months with the highest average low temperature are July and August (75.6°F).
The coldest month (with the lowest average low temperature) is January (42.6°F).

Average pressure in May
Seabrook, SC

Average pressure in May - Seabrook, 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
Seabrook, SC

Average wind speed in May - Seabrook, SC
  • Average wind speed in May: 6.6mph

The windiest month (with the highest average wind speed) is April (7.2mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in May
Seabrook, SC

Average humidity in May - Seabrook, SC
  • Average humidity in May: 74%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January and March (71%).

Average rainfall in May
Seabrook, SC

Average rainfall in May - Seabrook, SC
  • Average rainfall in May: 2.8"

The wettest month (with the highest rainfall) is August (4.76").
The driest month (with the least rainfall) is January (1.54").

Average rainfall days in May
Seabrook, SC

Average rainfall days in May - Seabrook, SC
  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is August (23.3 days).
The month with the least rainy days is November (7.5 days).

Average snowfall in May
Seabrook, SC

Average snowfall in May - Seabrook, SC
  • Average snowfall in May: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in May
Seabrook, SC

Average snowfall days in May - Seabrook, SC
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

Average daylight in May /
Average sunshine in May
Seabrook, SC

Average daylight in May / Average sunshine in May - Seabrook, 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 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).

Average sunshine days in May
Seabrook, SC

Average sunshine days in May - Seabrook, SC
  • Average sunshine days in May: 13.6 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is August (5.2 days).

Average UV index in May
Seabrook, SC

Average UV index in May - Seabrook, 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
Seabrook, SC

Average cloud cover in May - Seabrook, SC
  • Average cloud cover in May: 30

The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in May
Seabrook, SC

Average visibility in May - Seabrook, 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).

Seabrook, South Carolina, USA

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