May weather forecastSouth Orleans, MA
May
Weather in May
May, the last month of the spring in South Orleans, is a cool month, with an average temperature ranging between min 50.4°F (10.2°C) and max 54.5°F (12.5°C).Temperature
The shift into May is marked by a modest rise in the average high-temperature, moving from April's chilly 46.9°F (8.3°C) to a cool 54.5°F (12.5°C). South Orleans maintains a near steady average temperature of 50.4°F (10.2°C) during the nights of May, demonstrating little drop from daytime highs.Humidity
The average relative humidity in May is 84%.Rainfall
In May, in South Orleans, the rain falls for 7.4 days. Throughout May, 0.39" (10mm) of precipitation is accumulated. Throughout the year, there are 78.2 rainfall days, and 5.75" (146mm) of precipitation is accumulated.Snowfall
April through October are months without snowfall.Daylight
In South Orleans, the average length of the day in May is 14h and 34min.On the first day of the month, sunrise is at 5:35 am and sunset at 7:38 pm. On the last day of May, sunrise is at 5:07 am and sunset at 8:07 pm EDT.
Sunshine
In May, the average sunshine is 8.4h.UV index
In May, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in May interprets into the following recommendations:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
South Orleans, MA
- Average high temperature in May: 54.5°F
The warmest month (with the highest average high temperature) is August (71.4°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in May: 50.4°F
The month with the highest average low temperature is August (67.8°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in May
South Orleans, MA
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is November (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in May
South Orleans, MA
- Average wind speed in May: 13mph
The windiest month (with the highest average wind speed) is January (18.3mph).
The calmest month (with the lowest average wind speed) is August (11.4mph).
Average humidity in May
South Orleans, MA
- Average humidity in May: 84%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is November (74%).
Average rainfall in May
South Orleans, MA
- Average rainfall in May: 0.39"
The wettest month (with the highest rainfall) is October (0.87").
The driest months (with the least rainfall) are July and August (0.28").
Average rainfall days in May
South Orleans, MA
- Average rainfall days in May: 7.4 days
The month with the highest number of rainy days is April (8.2 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in May
South Orleans, MA
- Average snowfall in May: 0"
The month with the highest snowfall is December (0.31").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in May
South Orleans, MA
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
South Orleans, MA
- Average daylight in May: 14h and 36min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in May: 8h and 24min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in May
South Orleans, MA
- Average sunshine days in May: 20 days
The month with the most sunshine days is September (23.4 days).
The month with the least sunshine days is February (19.8 days).
Average UV index in May
South Orleans, MA
- Average UV index in May: 4
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
South Orleans, MA
- Average cloud cover in May: 44
The month with the most cloud cover is December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in May
South Orleans, MA
- 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).
