May weather forecastSantee, SC
May
Weather in May
May, the last month of the spring in Santee, is also a moderately hot month, with an average temperature varying between 81.1°F (27.3°C) and 63.1°F (17.3°C).Temperature
Santee observes a slight uplift in the average high-temperature with the onset of May, adjusting from April's 74.3°F (23.5°C) to a still warm 81.1°F (27.3°C). Santee's average low-temperature in May is measured at a comfortable 63.1°F (17.3°C).Heat index
For May, the heat index is evaluated at a hot 86°F (30°C). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.The heat index's values are generally associated with conditions in shade and light breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Humidity
The months with the highest humidity are May, August, September and December, with an average relative humidity of 77%.Rainfall
In Santee, in May, during 15.9 rainfall days, 3.03" (77mm) of precipitation is typically accumulated. In Santee, during the entire year, the rain falls for 165.1 days and collects up to 33.46" (850mm) of precipitation.Snowfall
March through December are months without snowfall.Daylight
In Santee, the average length of the day in May is 13h and 55min.On the first day of May in Santee, sunrise is at 6:32 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 6:13 am and sunset at 8:26 pm EDT.
Sunshine
In May, the average sunshine is 9.9h.UV index
The average daily maximum UV index in May is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The daily high UV index of 6 during May translates into the following recommendations:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 54min
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 54min
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).
