May weather forecast
South Bay, FL

The last month of the spring, May, is another warm month in South Bay, Florida, with an average temperature ranging between max 85.3°F (29.6°C) and min 70.9°F (21.6°C).

Temperature

In May, South Bay experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 82.9°F (28.3°C) in April to a still moderately hot 85.3°F (29.6°C). South Bay's nighttime temperature during May is consistently averaged at an agreeable 70.9°F (21.6°C).

Heat index

May's mean heat index is estimated at a very hot 95°F (35°C). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

In May, the average relative humidity in South Bay is 76%.

Rainfall

In South Bay, in May, it is raining for 16.4 days, with typically 2.44" (62mm) of accumulated precipitation. In South Bay, during the entire year, the rain falls for 178.9 days and collects up to 20.51" (521mm) of precipitation.

Daylight

In May, the average length of the day is 13h and 28min.
On the first day of May in South Bay, Florida, sunrise is at 6:44 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 8:11 pm EDT.

Sunshine

In South Bay, Florida, the average sunshine in May is 10.6h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.
Note: The maximum UV index of 7 during May translates into these guidelines:
Guard against overexposure. Protection from sun-induced harm is essential. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.