May weather forecast
Seaside, SC

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Weather in May

May, the last month of the spring in Seaside, is a warm month, with temperature in the range of an average low of 69.3°F (20.7°C) and an average high of 78.1°F (25.6°C).

Temperature

Seaside's transition into May is noticed by a slight rise in the average high-temperature, advancing from an agreeable 71.4°F (21.9°C) in April to a warm 78.1°F (25.6°C). During May, Seaside perceives a slight decrease in temperature from daytime highs, settling at an average low of 69.3°F (20.7°C).

Humidity

In Seaside, the average relative humidity in May is 76%.

Rainfall

In Seaside, in May, it is raining for 9.9 days, with typically 0.47" (12mm) of accumulated precipitation. In Seaside, during the entire year, the rain falls for 113.3 days and collects up to 10" (254mm) of precipitation.

Snowfall

In Seaside, snow does not fall in February through November.

Daylight

In May, the average length of the day is 13h and 51min.
On the first day of the month, sunrise is at 6:31 am and sunset at 8:01 pm. On the last day of May, in Seaside, sunrise is at 6:12 am and sunset at 8:22 pm EDT.

Sunshine

In May, the average sunshine is 10.5h.

UV index

The months with the highest UV index in Seaside are May through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 7 during May, leads to the following recommendations:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
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Frequently asked questions

What is the average May temperature in Seaside?

An average high-temperature, in May, in Seaside, is 78.1°F (25.6°C) and the average low-temperature is 69.3°F (20.7°C).

What is the average humidity in May in Seaside?

The average relative humidity in May is 76%.

How many days does it rain in May in Seaside?

In May, the rain falls for 9.9 days. Throughout May, 0.47" (12mm) of precipitation is accumulated.

When it does not snow in Seaside?

February through November are months without snowfall.

How many hours of daylight does Seaside have in May?

In Seaside, the average day length in May is 13h and 51min.

What time are sunrise and sunset in May in Seaside?

In May, on the first day of the month, sunrise is at 6:31 am and sunset at 8:01 pm. On the last day of the month, in Seaside, South Carolina, sunrise is at 6:12 am and sunset at 8:22 pm EDT.

How many hours of sunshine does Seaside have in May?

In May, the average sunshine duration in Seaside is 10.5h.

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

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

How high is the UV index in May in Seaside?

In May, the average daily maximum UV index in Seaside is 7. A UV Index of 6 to 7 symbolizes a high health threat from unsafe 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
Seaside, SC

Average temperature in May - Seaside, SC
  • Average high temperature in May: 78.1°F

The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (57°F).

  • Average low temperature in May: 69.3°F

The months with the highest average low temperature are July and August (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.4°F).

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Average pressure in May
Seaside, SC

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

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

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Average wind speed in May
Seaside, SC

Average wind speed in May - Seaside, SC
  • Average wind speed in May: 9.8mph

The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.8mph).

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Average humidity in May
Seaside, SC

Average humidity in May - Seaside, SC
  • Average humidity in May: 76%

The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are January, March and October (73%).

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Average rainfall in May
Seaside, SC

Average rainfall in May - Seaside, SC
  • Average rainfall in May: 0.47"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.24").

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Average rainfall days in May
Seaside, SC

Average rainfall days in May - Seaside, SC
  • Average rainfall days in May: 9.9 days

The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is November (5.2 days).

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Average snowfall days in May
Seaside, SC

Average snowfall days in May - Seaside, 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 February, March, April, May, June, July, August, September, October and November (0 days).

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

Average daylight in May / Average sunshine in May - Seaside, 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 0min).

  • Average sunshine in May: 10h and 3min

The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).

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Average sunshine days in May
Seaside, SC

Average sunshine days in May - Seaside, SC
  • Average sunshine days in May: 18.4 days

The month with the most sunshine days is January (23.9 days).
The month with the least sunshine days is August (8.5 days).

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Average UV index in May
Seaside, SC

Average UV index in May - Seaside, 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).

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Average cloud cover in May
Seaside, SC

Average cloud cover in May - Seaside, SC
  • Average cloud cover in May: 27

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

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Average visibility in May
Seaside, SC

Average visibility in May - Seaside, 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).

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Seaside, South Carolina, USA

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