May weather forecast
Otranto, SC

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Weather in May

The last month of the spring, May, is another warm month in Otranto, South Carolina, with an average temperature ranging between max 81.3°F (27.4°C) and min 66°F (18.9°C).

Temperature

As April transitions into May, Otranto notices a gentle rise in the average high-temperature, transitioning from 74.8°F (23.8°C) to a still warm 81.3°F (27.4°C). May in Otranto generally records an average low-temperature of 66°F (18.9°C).

Heat index

The heat index in May is estimated at a hot 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
Research indicates the heat index considers values in shaded locales and with light winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. One should be aware that direct sunshine can amplify the perceived temperature, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.

Humidity

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

Rainfall

In Otranto, in May, it is raining for 15.6 days, with typically 2.95" (75mm) of accumulated precipitation. Throughout the year, there are 172.6 rainfall days, and 39.13" (994mm) of precipitation is accumulated.

Snowfall

March through November are months without snowfall in Otranto.

Daylight

The average length of the day in May is 13h and 52min.
On the first day of May, sunrise is at 6:31 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:23 pm EDT.

Sunshine

In Otranto, South Carolina, the average sunshine in May is 10.2h.

UV index

In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: In May, a regular UV index of 6 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
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Frequently asked questions

What is the temperature in May in Otranto?

In May, the average high-temperature and low-temperature in Otranto are 81.3°F (27.4°C) and 66°F (18.9°C) respectively. In May, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is estimated at 86°F (30°C).

What is the average humidity in May in Otranto?

The average relative humidity in May in Otranto is 75%.

How many days does it rain in May in Otranto?

In Otranto, during May, the rain falls for 15.6 days and regularly aggregates up to 2.95" (75mm) of precipitation.

When it does not snow in Otranto?

In Otranto, snow does not fall in March through November.

How many hours of daylight does Otranto have in May?

In May, the average day length in Otranto, South Carolina, is 13h and 52min.

When are sunrise and sunset in May in Otranto?

On the first day of May in Otranto, South Carolina, sunrise is at 6:31 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:23 pm EDT.

How many hours of sunshine does Otranto have in May?

In Otranto, South Carolina, the average sunshine duration in May is 10.2h.

How high is the UV index in May in Otranto?

In May, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to 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 May
Otranto, SC

Average temperature in May - Otranto, SC
  • Average high temperature in May: 81.3°F

The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (56.8°F).

  • Average low temperature in May: 66°F

The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).

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Average pressure in May
Otranto, SC

Average pressure in May - Otranto, 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).

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Average wind speed in May
Otranto, SC

Average wind speed in May - Otranto, SC
  • Average wind speed in May: 6.9mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in May
Otranto, SC

Average humidity in May - Otranto, 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%).

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Average rainfall in May
Otranto, SC

Average rainfall in May - Otranto, SC
  • Average rainfall in May: 2.95"

The wettest month (with the highest rainfall) is August (6.22").
The driest month (with the least rainfall) is January (1.46").

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Average rainfall days in May
Otranto, SC

Average rainfall days in May - Otranto, SC
  • Average rainfall days in May: 15.6 days

The month with the highest number of rainy days is August (23.4 days).
The month with the least rainy days is November (8.2 days).

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Average snowfall in May
Otranto, SC

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

The month with the highest snowfall is February (0.28").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in May
Otranto, SC

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

The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

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

Average daylight in May / Average sunshine in May - Otranto, 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 1min

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 36min).

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Average sunshine days in May
Otranto, SC

Average sunshine days in May - Otranto, SC
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is August (5.8 days).

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Average UV index in May
Otranto, SC

Average UV index in May - Otranto, SC
  • Average UV index in May: 6

The months with the highest UV index are 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
Otranto, SC

Average cloud cover in May - Otranto, SC
  • Average cloud cover in May: 31

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

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Average visibility in May
Otranto, SC

Average visibility in May - Otranto, 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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Otranto, South Carolina, USA

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