May weather forecast
Captiva, FL

May brings the onset of summer in Captiva. A significant temperature jump to 83.1°F signifies the imminent heat. There's a sharp incline in rainfall reaching 0.63", hinting at moister conditions. An extended daylight duration of up to 13.5 hours opens extensive recreational prospects. Nonetheless through the perked UV index and soaring temperatures, Captiva remains an enchanting location.

Temperature

May's beginning in Captiva signals an average high-temperature of a still warm 83.1°F, barely different from April's 79.5°F. Throughout May, a modest shift from daytime highs is anticipated, with an average low-temperature of 74.3°F.

Heat index

May's mean heat index is computed to be a tropical 89.6°F. Remaining active during long-lasting exposure could cause fatigue, leading to heat cramps.
When assessing, remember that heat index measurements are for light winds and shaded spots. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.

Humidity

In Captiva, the average relative humidity in May is 73%.

Rainfall

In May, the rain falls for 9.3 days. Throughout May, 0.63" of precipitation is accumulated. In Captiva, Florida, during the entire year, the rain falls for 122 days and collects up to 8.98" of precipitation.

Ocean temperature

In Captiva, Florida, in May, the average water temperature is 78.8°F.
Note: Swimming, diving, and other water-related activities in temperatures between 77°F and 84.2°F are considered highly enjoyable and satisfying for longer durations without uneasiness.

Daylight

The average length of the day in May is 13h and 28min.
On the first day of May in Captiva, Florida, sunrise is at 6:50 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:17 pm EDT.

Sunshine

The month with the most sunshine is May, with an average of 11.1h of sunshine.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: In May, the maximum UV index of 7 transforms into these recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Beware! Reflections from sand and water can intensify the Sun's UV radiation.