Cape Coral
Florida, USA
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Cape Coral, FL

May, the last month of the spring, in Cape Coral, is also a moderately hot month, with average temperature varying between 73°F (22.8°C) and 84.7°F (29.3°C).

Temperature

In Cape Coral, Florida, the average high-temperature is essentially the same as in April - a still moderately hot 84.7°F (29.3°C). In May, the average low-temperature is 73°F (22.8°C).

Heat index

In May, the average heat index is calculated to a tropical 92.8°F (33.8°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With the exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors like metabolic differences, wind, clothing, and activity influence one's weather impression. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Cape Coral, the average relative humidity is 72%.

Rainfall

In Cape Coral, during 14.4 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. Throughout the year, there are 156.4 rainfall days, and 17.95" (456mm) of precipitation is accumulated.

Ocean temperature

In Cape Coral, in May, the average water temperature is 79.3°F (26.3°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In May, the average length of the day is 13.5h.

Sunshine

In May, the average sunshine is 10.9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Cape Coral. A UV Index of 6 to 7 symbolizes a high health hazard from the exposure to the Sun's UV rays for ordinary individuals.
Note: In May, the average maximum UV index of 7 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in May in Cape Coral?

In May, in Cape Coral, Florida, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 73°F (22.8°C). In May, the average heat index (a.k.a. 'real feel', 'feels like'), that combines both air temperature and relative humidity, is evaluated at 92.8°F (33.8°C).

What is the average humidity in May in Cape Coral?

The average relative humidity in May in Cape Coral is 72%.

How many days does it rain in May in Cape Coral?

In Cape Coral, Florida, in May, during 14.4 rainfall days, 1.65" (42mm) of precipitation is typically accumulated.

How warm is the water in May in Cape Coral?

In May, the average ocean temperature in Cape Coral, Florida, is 79.3°F (26.3°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Cape Coral have in May?

In May, the average length of the day in Cape Coral, Florida, is 13.5h.

How long on average sun shines in May in Cape Coral?

In May, the average sunshine in Cape Coral, Florida, is 10.9h.

What are the months with the highest UV index in Cape Coral?

Months with the highest UV index in Cape Coral are May through September, with an average maximum UV index of 7.

What is the UV index intensity in May in Cape Coral?

The average daily maximum UV index in May in Cape Coral is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in May - Cape Coral, FL
  • Average high temperature in May: 84.7°F

The warmest month (with the highest average high temperature) is August (88.9°F).
The month with the lowest average high temperature is January (70.7°F).

  • Average low temperature in May: 73°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is January (57.7°F).

Average humidity in May - Cape Coral, FL
  • Average humidity in May: 72%

Months with the highest relative humidity are September and December (76%).
The month with the lowest relative humidity is March (71%).

Average rainfall in May - Cape Coral, FL
  • Average rainfall in May: 1.65"

The wettest month (with the highest rainfall) is August (3.94").
The driest months (with the least rainfall) are February and March (0.43").

Average rainfall days in May - Cape Coral, FL
  • Average rainfall days in May: 14.4 days

The month with the highest number of rainy days is August (24 days).
The month with the least rainy days is February (6.2 days).

Average sea temperature in May - Cape Coral, FL
  • Average sea temperature in May: 79.4°F

The best month for swimming (with the highest average sea temperature) is August (86.8°F).
The coldest month (with the lowest average sea temperature) is January (67°F).

Average daylight in May / Average sunshine in May - Cape Coral, FL
  • Average daylight in May: 13.5h

The month with the longest days is June (Average daylight: 13.8h).
The month with the shortest days is December (Average daylight: 10.5h).

  • Average sunshine in May: 10.9h

The month with the most sunshine is July (Average sunshine: 11h).
The month with the least sunshine is December (Average sunshine: 6.6h).

Average UV index in May - Cape Coral, FL
  • Average UV index in May: 7

Months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).