Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
Weather in May
Temperature
The start of May brings a subtle shift in the average high-temperature, edging up from April's 74.3°F (23.5°C) to a still moderately hot 81.1°F (27.3°C). During May, Santee records a consistent average nighttime temperature of 63.1°F (17.3°C).Heat index
The heat index for May is calculated to be a hot 86°F (30°C). Persistent activity under exposure might lead to a feeling of weariness, with subsequent heat cramps.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
Humidity
The months with the highest humidity in Santee are May, August, September and December, with an average relative humidity of 77%.Rainfall
In Santee, during May, the rain falls for 15.9 days and regularly aggregates up to 3.03" (77mm) of precipitation. Throughout the year, in Santee, there are 165.1 rainfall days, and 33.46" (850mm) of precipitation is accumulated.Snowfall
In Santee, South Carolina, snow does not fall in March through December.Daylight
In May, the average length of the day in Santee is 13h and 55min.On the first day of the month, sunrise is at 6:32 am and sunset at 8:05 pm. On the last day of May, sunrise is at 6:13 am and sunset at 8:26 pm EDT.
Sunshine
The average sunshine in May is 9.9h.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 the ordinary person.Note: The maximum UV index of 6 during May translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Frequently asked questions
What is the average May temperature in Santee?
What are the most humid months in Santee?
What is the average humidity in May in Santee?
How much does it rain in Santee in May?
When it does not snow in Santee?
How many hours of daylight does Santee have in May?
When are sunrise and sunset in May in Santee?
How long on average sun shines in May in Santee?
What is the UV index reading in May in Santee?
Average temperature in May
Santee, SC
- Average high temperature in May: 81.1°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 (54.9°F).
- Average low temperature in May: 63.1°F
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).
Average pressure in May
Santee, 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 (29.97"Hg).
Average wind speed in May
Santee, SC
- Average wind speed in May: 6.8mph
The windiest month (with the highest average wind speed) is April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Santee, SC
- Average humidity in May: 77%
The months with the highest relative humidity are May, August, September and December (77%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in May
Santee, SC
- Average rainfall in May: 3.03"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is November (1.69").
Average rainfall days in May
Santee, SC
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is August (21 days).
The month with the least rainy days is November (7.3 days).
Average snowfall in May
Santee, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.24").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Santee, 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 March, April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Santee, 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: 9h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 30min).
Average sunshine days in May
Santee, SC
- Average sunshine days in May: 13 days
The month with the most sunshine days is November (21.2 days).
The month with the least sunshine days is August (7.9 days).
Average UV index in May
Santee, SC
- Average UV index in May: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in May
Santee, SC
- Average cloud cover in May: 34
The months with the most cloud cover are February and December (Cloud cover 41).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in May
Santee, 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).
Santee, South Carolina, USA
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