May weather forecast
Lisbon, FL

The last month of the spring, May, is a hot month in Lisbon, Florida, with an average temperature ranging between min 67.8°F (19.9°C) and max 86.2°F (30.1°C).

Temperature

The transition into May notes an average high-temperature of a tropical 86.2°F (30.1°C), revealing a mild distinction from the 82°F (27.8°C) in April. May in Lisbon, Florida, sees the temperature falling to a mean low of 67.8°F (19.9°C).

Heat index

May's heat index is estimated at a torrid 96.8°F (36°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
To achieve cooling, the human body employs perspiration, relying on the subsequent evaporation of sweat. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Excessive heat that's not properly managed leads to increased body temperatures and resultant health issues.

Humidity

The average relative humidity in May in Lisbon, Florida, is 73%.

Rainfall

In Lisbon, in May, it is raining for 17.3 days, with typically 3.58" (91mm) of accumulated precipitation. Throughout the year, there are 200.1 rainfall days, and 39.06" (992mm) of precipitation is accumulated.

Daylight

In Lisbon, Florida, the average length of the day in May is 13h and 36min.
On the first day of the month, sunrise is at 6:45 am and sunset at 8:03 pm. On the last day of May, in Lisbon, sunrise is at 6:29 am and sunset at 8:20 pm EDT.

Sunshine

May and July, with an average of 10.7h of sunshine, are months with the most sunshine in Lisbon.

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 health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 during May translates into the following directions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.