May weather forecastSebastian, FL
May
Weather in May
The last month of the spring, May, is another warm month in Sebastian, Florida, with an average temperature varying between 73°F (22.8°C) and 81.3°F (27.4°C).Temperature
The shift into May records an average high-temperature of a still warm 81.3°F (27.4°C), subtly varied from April's 78.1°F (25.6°C). Sebastian, during the nights of May, averages a temperature close to its daytime high, at an agreeable 73°F (22.8°C).Heat index
For most parts of May, the heat index is appraised at a hot 86°F (30°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.Know that the heat index computations account for shaded terrains and slight winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
Humidity
In May, the average relative humidity in Sebastian is 76%.Rainfall
In May, in Sebastian, the rain falls for 16.7 days. Throughout May, 4.72" (120mm) of precipitation is accumulated. In Sebastian, during the entire year, the rain falls for 205.2 days and collects up to 38.31" (973mm) of precipitation.Daylight
In Sebastian, the average length of the day in May is 13h and 32min.On the first day of the month, sunrise is at 6:41 am and sunset at 7:56 pm. On the last day of May, in Sebastian, sunrise is at 6:26 am and sunset at 8:13 pm EDT.
Sunshine
In May, the average sunshine is 10.6h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index in Sebastian. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index, 7 in May, converts into the following recommendations:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Sebastian, FL
- Average high temperature in May: 81.3°F
The warmest month (with the highest average high temperature) is August (87.1°F).
The month with the lowest average high temperature is January (69.4°F).
- Average low temperature in May: 73°F
The month with the highest average low temperature is August (79°F).
The coldest month (with the lowest average low temperature) is January (59.7°F).
Average pressure in May
Sebastian, FL
- Average pressure in May: 30.02"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in May
Sebastian, FL
- Average wind speed in May: 9.3mph
The windiest month (with the highest average wind speed) is November (10.6mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in May
Sebastian, FL
- Average humidity in May: 76%
The months with the highest relative humidity are June, July and August (79%).
The month with the lowest relative humidity is March (72%).
Average rainfall in May
Sebastian, FL
- Average rainfall in May: 4.72"
The wettest month (with the highest rainfall) is August (6.89").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in May
Sebastian, FL
- Average rainfall days in May: 16.7 days
The month with the highest number of rainy days is August (25 days).
The month with the least rainy days is February (10.4 days).
Average daylight in May /
Average sunshine in May
Sebastian, FL
- Average daylight in May: 13h and 30min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in May: 10h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 54min).
Average sunshine days in May
Sebastian, FL
- Average sunshine days in May: 10.6 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is August (3.9 days).
Average UV index in May
Sebastian, FL
- Average UV index in May: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in May
Sebastian, FL
- Average cloud cover in May: 27
The month with the most cloud cover is November (Cloud cover 36).
The months with the least cloud cover are May, July and August (Cloud cover 27).
Average visibility in May
Sebastian, FL
- 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).
