May weather forecast and climate
Naples, FL

Magnificent white sandy shores of Naples in Florida, USA, complete with a view of the city structure and plantation
Magnificent white sandy shores of Naples in Florida, USA, complete with a view of the city structure and plantation

Weather in May

May, the last month of the spring, in Naples, is also a moderately hot month, with average temperature fluctuating between 84.4°F (29.1°C) and 74.1°F (23.4°C).

Temperature

In Naples, the average high-temperature is essentially the same as in April - a still warm 84.4°F (29.1°C). In Naples, Florida, in May, the average low-temperature is 74.1°F (23.4°C).

Heat index

In May, the average heat index is evaluated at a tropical 92.3°F (33.5°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With 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 'real feel', 'feels like', 'felt air temperature', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, metabolic differences, differences in body mass, height, and shape, and pregnancy affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the 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 Naples, the average relative humidity is 73%.

Rainfall

In Naples, Florida,, during 15.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated. Throughout the year, there are 162.1 rainfall days, and 21.69" (551mm) of precipitation is accumulated.

Ocean temperature

In Naples, Florida, the average seawater temperature is 80.1°F (26.7°C).
Note: 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.

Daylight

The average length of the day in Naples is 13.4h.

Sunshine

May and July, with an average of 11.1h of sunshine, are months with the most sunshine.

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 health vulnerability from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in May in Naples?

In Naples, in May, the average high-temperature is 84.4°F (29.1°C), and the average low-temperature is 74.1°F (23.4°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in May is evaluated at 92.3°F (33.5°C).

What is the average humidity in May in Naples?

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

How many days does it rain in May in Naples?

In Naples, Florida, in May, during 15.3 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

How warm is the water in May in Naples?

In Naples, Florida, in May, the average water temperature is 80.1°F (26.7°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.

What is the average length of the day in May in Naples?

In Naples, Florida, the average length of the day in May is 13.4h.

What is the month with the most sunshine in Naples?

Months with the most sunshine in Naples are May and July, with an average of 11.1h of sunshine.

How long on average sun shines in May in Naples?

The average sunshine in May in Naples, Florida, is 11.1h.

What is the month with the highest UV index in Naples?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Naples.

What is the UV index reading in May in Naples?

The average daily maximum UV index in May in Naples, Florida, is 7. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.

Average temperature in May
Naples, FL

Average temperature in May - Naples, FL
  • Average high temperature in May: 84.4°F

The warmest month (with the highest average high temperature) is August (88.3°F).
The month with the lowest average high temperature is January (71.6°F).

  • Average low temperature in May: 74.1°F

The month with the highest average low temperature is August (80.2°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).

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Average pressure in May
Naples, FL

Average pressure in May - Naples, FL
  • Average pressure in May: 30"

The month with the highest atmospheric pressure is January (30.11").
The month with the lowest atmospheric pressure is September (29.94").

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Average wind speed in May
Naples, FL

Average wind speed in May - Naples, FL
  • Average wind speed in May: 7.8mph

The windiest month (with the highest average wind speed) is November (9.2mph).
The calmest month (with the lowest average wind speed) is July (6.2mph).

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Average humidity in May
Naples, FL

Average humidity in May - Naples, FL
  • Average humidity in May: 73%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is March (72%).

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Average rainfall in May
Naples, FL

Average rainfall in May - Naples, FL
  • Average rainfall in May: 2.09"

The wettest month (with the highest rainfall) is August (4.29").
The driest month (with the least rainfall) is March (0.63").

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Average rainfall days in May
Naples, FL

Average rainfall days in May - Naples, FL
  • Average rainfall days in May: 15.3 days

The month with the highest number of rainy days is August (22.4 days).
The month with the least rainy days is February (7 days).

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Average sea temperature in May
Naples, FL

Average sea temperature in May - Naples, FL
  • Average sea temperature in May: 79.9°F

The best month for swimming (with the highest average sea temperature) is August (87.2°F).
The coldest month (with the lowest average sea temperature) is January (66.6°F).

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Average daylight in May /
Average sunshine in May
Naples, FL

Average daylight in May / Average sunshine in May - Naples, FL
  • Average daylight in May: 13.4h

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: 11.1h

Months with the most sunshine are May and July (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.7h).

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Average sunshine days in May
Naples, FL

Average sunshine days in May - Naples, FL
  • Average sunshine days in May: 12.9 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is August (6.8 days).

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Average UV index in May
Naples, FL

Average UV index in May - Naples, FL
  • Average UV index in May: 7

Months with the highest UV index are May, June, July, August and September (UV index 7).
Months with the lowest UV index are January and February (UV index 5).

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Average cloud cover in May
Naples, FL

Average cloud cover in May - Naples, FL
  • Average cloud cover in May: 23

The month with the most cloud cover is January (Cloud cover 28).
Months with the least cloud cover are March and April (Cloud cover 22).

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Average visibility in May
Naples, FL

Average visibility in May - Naples, FL
  • Average visibility in May: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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