May weather forecast
Harlem, FL

May, the last month of the spring in Harlem, is a hot month, with temperature in the range of an average low of 70.7°F (21.5°C) and an average high of 86.4°F (30.2°C).

Temperature

As Harlem welcomes May, the average high-temperature stabilizes at a tropical 86.4°F (30.2°C), showing little deviation from April's 83.8°F (28.8°C). In the month of May, Harlem records a consistent average low-temperature of 70.7°F (21.5°C).

Heat index

The heat index value during May is estimated at a torrid 98.6°F (37°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index could experience an increase of 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. 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.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Harlem, the average relative humidity in May is 74%.

Rainfall

In Harlem, in May, during 15.1 rainfall days, 1.97" (50mm) of precipitation is typically accumulated. In Harlem, during the entire year, the rain falls for 166.9 days and collects up to 16.06" (408mm) of precipitation.

Daylight

In Harlem, the average length of the day in May is 13h and 28min.
On the first day of the month, sunrise is at 6:44 am and sunset at 7:56 pm. On the last day of May, in Harlem, sunrise is at 6:30 am and sunset at 8:12 pm EDT.

Sunshine

In Harlem, the average sunshine in May is 10.6h.

UV index

The months with the highest UV index in Harlem are May through September, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 7 in May translates into the following recommendations:
Deflect overexposure. Sun protection is a necessity. 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. Always opt for UVA and UVB-resistant sunglasses on radiant days.