May weather forecast
Watertown, FL

May, the last month of the spring in Watertown, is a tropical month, with an average temperature fluctuating between 86.4°F (30.2°C) and 66°F (18.9°C).

Temperature

In May, the meteorological conditions subtly change with the average high-temperature edging from a warm 80.6°F (27°C) in April to a tropical 86.4°F (30.2°C). An average nighttime temperature of 66°F (18.9°C) is observed during May.

Heat index

May's mean heat index is appraised at a torrid 96.8°F (36°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', shows a temperature sensation when both heat and moisture conditions are combined. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

The average relative humidity in May is 71%.

Rainfall

In Watertown, during May, the rain falls for 14.3 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, there are 176.6 rainfall days, and 32.17" (817mm) of precipitation is accumulated.

Daylight

In Watertown, the average length of the day in May is 13h and 41min.
On the first day of May, sunrise is at 6:46 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:29 am and sunset at 8:27 pm EDT.

Sunshine

In May, the average sunshine is 10.5h.

UV index

The months with the highest UV index are May through August, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The daily high UV index of 7 in May translates into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.