May weather forecast
Saint James City, FL

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Weather in May

The last month of the spring, May, is another warm month in Saint James City, Florida, with temperature in the range of an average high of 83.1°F (28.4°C) and an average low of 74.3°F (23.5°C).

Temperature

The beginning of May reveals an average high-temperature of a still warm 83.1°F (28.4°C), showing minimal deviation from the previous month. May's average low-temperature in Saint James City, Florida, is a still moderately hot 74.3°F (23.5°C), reflecting a minor difference from the day's peak temperatures.

Heat index

May's average heat index is calculated to be a hot 89.6°F (32°C). If one stays active during extended exposure, it might induce fatigue and result in heat cramps.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The direct sunshine could escalate the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an amalgamation of air temperature and humidity to express the equivalent perceived temperature. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.

Humidity

The average relative humidity in May is 73%.

Rainfall

In Saint James City, in May, it is raining for 9.3 days, with typically 0.63" (16mm) of accumulated precipitation. In Saint James City, during the entire year, the rain falls for 122 days and collects up to 8.98" (228mm) of precipitation.

Ocean temperature

In Saint James City, the average seawater temperature in May is 79.3°F (26.3°C).
Note: Swimming, diving, and other water-related activities in temperatures between 77°F (25°C) and 84.2°F (29°C) are considered highly enjoyable and satisfying for longer durations without uneasiness.

Daylight

In May, the average length of the day in Saint James City is 13h and 28min.
On the first day of May in Saint James City, Florida, sunrise is at 6:49 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 8:16 pm EDT.

Sunshine

May has the most sunshine of the year, with an average of 11.1h of sunshine.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In May, an average UV index of 7 transforms into the following instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Be cautious! Sand and water surfaces make the Sun's UV rays more potent.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Saint James City during May?

The high-temperature, in May, in Saint James City, is 83.1°F (28.4°C), while the low-temperature averages to 74.3°F (23.5°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in May is calculated to be 89.6°F (32°C).

What is the average humidity in May in Saint James City?

In May, the average relative humidity in Saint James City, Florida, is 73%.

How many days does it rain in May in Saint James City?

In Saint James City, Florida, in May, during 9.3 rainfall days, 0.63" (16mm) of precipitation is typically accumulated.

What is the ocean temperature in May in Saint James City?

In Saint James City, the average seawater temperature in May is 79.3°F (26.3°C). 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.

How many hours of daylight does Saint James City have in May?

In May, the average day length in Saint James City is 13h and 28min.

When are sunrise and sunset in May in Saint James City?

In May, on the first day of the month, sunrise is at 6:49 am and sunset at 8:00 pm. On the last day of the month, in Saint James City, sunrise is at 6:35 am and sunset at 8:16 pm EDT.

What month has the most sunshine in Saint James City?

May has the most sunshine of the year in Saint James City, Florida, with an average of 11.1h of sunshine.

How long on average sun shines in May in Saint James City?

In May, the average sunshine duration in Saint James City is 11.1h.

What are the months with the highest UV index in Saint James City?

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

What is the UV index intensity in May in Saint James City?

In Saint James City, Florida, the average daily maximum UV index in May is 7. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in May
Saint James City, FL

Average temperature in May - Saint James City, FL
  • Average high temperature in May: 83.1°F

The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (70°F).

  • Average low temperature in May: 74.3°F

The month with the highest average low temperature is August (81°F).
The coldest month (with the lowest average low temperature) is January (58.8°F).

Average pressure in May
Saint James City, FL

Average pressure in May - Saint James City, FL
  • Average pressure in May: 30"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).

Average wind speed in May
Saint James City, FL

Average wind speed in May - Saint James City, FL
  • Average wind speed in May: 8.5mph

The windiest months (with the highest average wind speed) are October and November (9.9mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).

Average humidity in May
Saint James City, FL

Average humidity in May - Saint James City, FL
  • Average humidity in May: 73%

The month with the highest relative humidity is December (77%).
The month with the lowest relative humidity is March (72%).

Average rainfall in May
Saint James City, FL

Average rainfall in May - Saint James City, FL
  • Average rainfall in May: 0.63"

The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is March (0.16").

Average rainfall days in May
Saint James City, FL

Average rainfall days in May - Saint James City, FL
  • Average rainfall days in May: 9.3 days

The month with the highest number of rainy days is September (19.5 days).
The month with the least rainy days is February (4.1 days).

Average sea temperature in May
Saint James City, FL

Average sea temperature in May - Saint James City, FL
  • Average sea temperature in May: 79.4°F

The best month for swimming (with the highest average sea temperature) is August (87.1°F).
The coldest month (with the lowest average sea temperature) is January (65.3°F).

Average daylight in May /
Average sunshine in May
Saint James City, FL

Average daylight in May / Average sunshine in May - Saint James City, FL
  • Average daylight in May: 13h and 3min

The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).

  • Average sunshine in May: 11h and 1min

The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).

Average sunshine days in May
Saint James City, FL

Average sunshine days in May - Saint James City, FL
  • Average sunshine days in May: 18.3 days

The month with the most sunshine days is January (25.1 days).
The month with the least sunshine days is September (7.2 days).

Average UV index in May
Saint James City, FL

Average UV index in May - Saint James City, FL
  • Average UV index in May: 7

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

Average cloud cover in May
Saint James City, FL

Average cloud cover in May - Saint James City, FL
  • Average cloud cover in May: 23

The month with the most cloud cover is January (Cloud cover 29).
The months with the least cloud cover are March and May (Cloud cover 23).

Average visibility in May
Saint James City, FL

Average visibility in May - Saint James City, FL
  • Average visibility in May: 6mi

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

Saint James City, Florida, USA

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