May weather forecast
Fort Myers, FL

In May, Fort Myers makes a remarkable leap into the wet season with rainfall levels jumping to an annual high of 2.24" (57mm). Even with the more frequent showers, the temperature remains agreeable, offering warm days and nights. The sea temperature follows suit, rising favorably, making beach visits enjoyable. It remains a getaway city promising sun-drenched hours, despite the growing humidity levels. The ample sunshine and gusty winds underline May's characteristic weather pattern in Fort Myers.

Temperature

The arrival of May in Fort Myers sees an average high-temperature of a still warm 85.6°F (29.8°C), hardly diverging from April's 82°F (27.8°C). During the nights in May, the temperature averages to a pleasant 72.5°F (22.5°C).

Heat index

In May, the average heat index is calculated to be a sweltering 95°F (35°C). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

In Fort Myers, Florida, the average relative humidity in May is 72%.

Rainfall

In Fort Myers, in May, it is raining for 14.8 days, with typically 2.24" (57mm) of accumulated precipitation. Throughout the year, there are 159.2 rainfall days, and 23.54" (598mm) of precipitation is accumulated.

Ocean temperature

In Fort Myers, the average seawater temperature in May is 78.8°F (26°C).
Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are ideal for all water activities, offering enjoyment without causing discomfort over extended periods.

Daylight

In May, the average length of the day is 13h and 28min.
On the first day of May, sunrise is at 6:48 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:34 am and sunset at 8:16 pm EDT.

Sunshine

May and July, with an average of 11h of sunshine, are months with the most sunshine in Fort Myers.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index, 7 in May, converts into the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Stay cautious! Sand and water reflections increase UV radiation potency.