May weather forecast
Harlem, FL

May, the last month of the spring in Harlem, is a tropical month, with an average temperature ranging between max 86.4°F (30.2°C) and min 70.7°F (21.5°C).

Temperature

The transition into May reveals an average high-temperature of a tropical 86.4°F (30.2°C), mirroring a close resemblance to April. In May, the nighttime temperature lowers to an average of 70.7°F (21.5°C).

Heat index

The average heat index in May is calculated to be a very hot 98.6°F (37°C). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
The metrics for the heat index are tailored for both shady environments and light winds. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is a metric representing the sensation of warmth when air temperature and moisture come together. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. During conditions of high air temperature and humidity (high heat index), the body's ability to perspire is inhibited, increasing the sensation of warmth. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

In May, the average relative humidity is 74%.

Rainfall

In May, the rain falls for 15.1 days. Throughout May, 1.97" (50mm) of precipitation is 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 May, the average length of the day 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, sunrise is at 6:30 am and sunset at 8:12 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. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 7 during May leads to these advisories:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.