May weather forecast
Sebastian, TX

The last month of the spring, May, is a tropical month in Sebastian, Texas, with an average temperature varying between 73.2°F (22.9°C) and 88.5°F (31.4°C).

Temperature

Sebastian, Texas, sees the arrival of May with an average high-temperature of a tropical 88.5°F (31.4°C), indicating a subtle variation from April. In Sebastian, the nighttime temperature averages to a pleasant 73.2°F (22.9°C) during May.

Heat index

Throughout May, the heat index is appraised at an extremely hot 104°F (40°C). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. As the body gains more heat than it can dissipate, there's a risk of increasing temperatures and resultant overheating.

Humidity

With an average relative humidity of 73%, May is the most humid month in Sebastian.

Rainfall

In May, the rain falls for 10.6 days. Throughout May, 1.5" (38mm) of precipitation is accumulated. Throughout the year, there are 125.2 rainfall days, and 15.28" (388mm) of precipitation is accumulated.

Daylight

In May, the average length of the day in Sebastian, Texas, is 13h and 27min.
On the first day of May in Sebastian, sunrise is at 6:52 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:38 am and sunset at 8:19 pm CDT.

Sunshine

In Sebastian, the average sunshine in May is 9.9h.

UV index

In May, the average daily maximum UV index in Sebastian is 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily high UV index of 7 in May leads to these guidelines:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.