May weather forecastOlanta, SC
May
Weather in May
May, the last month of the spring in Olanta, is a moderately hot month, with an average temperature fluctuating between 79.7°F (26.5°C) and 62.8°F (17.1°C).Temperature
In May, the meteorological conditions subtly change with the average high-temperature edging from a pleasant 73°F (22.8°C) in April to a moderately hot 79.7°F (26.5°C). During May, an average low-temperature of 62.8°F (17.1°C) is observed.Humidity
May, August and September, with an average relative humidity of 78%, are the most humid months.Rainfall
In Olanta, in May, during 16.5 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. Throughout the year, there are 170.2 rainfall days, and 34.06" (865mm) of precipitation is accumulated.Snowfall
In Olanta, snow does not fall in March through December.Daylight
In May, the average length of the day is 13h and 56min.On the first day of the month, sunrise is at 6:29 am and sunset at 8:03 pm. On the last day of May, sunrise is at 6:09 am and sunset at 8:25 pm EDT.
Sunshine
In Olanta, the average sunshine in May is 9.8h.UV index
In May, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In May, the maximum UV index of 6 translates into these guidelines:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Olanta, SC
- Average high temperature in May: 79.7°F
The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (53.4°F).
- Average low temperature in May: 62.8°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (37.6°F).
Average pressure in May
Olanta, SC
- Average pressure in May: 30.02"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.97"Hg).
Average wind speed in May
Olanta, SC
- Average wind speed in May: 6.9mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in May
Olanta, SC
- Average humidity in May: 78%
The months with the highest relative humidity are May, August and September (78%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in May
Olanta, SC
- Average rainfall in May: 3.62"
The wettest month (with the highest rainfall) is August (4.41").
The driest month (with the least rainfall) is January (1.46").
Average rainfall days in May
Olanta, SC
- Average rainfall days in May: 16.5 days
The month with the highest number of rainy days is July (21.8 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in May
Olanta, SC
- Average snowfall in May: 0"
The month with the highest snowfall is February (0.39").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in May
Olanta, SC
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in May /
Average sunshine in May
Olanta, SC
- Average daylight in May: 13h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in May: 9h and 48min
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
Olanta, SC
- Average sunshine days in May: 12.3 days
The months with the most sunshine days are October and November (20.4 days).
The month with the least sunshine days is July (6.5 days).
Average UV index in May
Olanta, SC
- Average UV index in May: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in May
Olanta, SC
- Average cloud cover in May: 36
The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in May
Olanta, 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).





