July weather forecast
Saint Petersburg, FL

Beautiful clear waterfront, scenic palm trees, and a straight road to St. Petersburg in Florida
Beautiful clear waterfront, scenic palm trees, and a straight road to St. Petersburg in Florida

Weather in July

July, the same as June, in Saint Petersburg, Florida, is another tropical summer month, with an average temperature fluctuating between 79.3°F (26.3°C) and 88°F (31.1°C).

Temperature

In July, the average high-temperature is almost the same as in June - a still tropical 88°F (31.1°C). In July, the average low-temperature is 79.3°F (26.3°C).

Heat index

The average heat index in July is evaluated at a torrid 102.2°F (39°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. Exposure to direct sunshine can increase heat index values 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. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, wind, pregnancy). 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 particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

The average relative humidity in July is 74%.

Rainfall

July is the month with the most rainfall in Saint Petersburg. Rain falls for 26.2 days and accumulates 5.24" (133mm) of precipitation.

Ocean temperature

In July, the average ocean temperature in Saint Petersburg is 85.5°F (29.7°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

The average length of the day in July in Saint Petersburg, Florida, is 13h and 42min.
On the first day of July in Saint Petersburg, sunrise is at 6:38 am and sunset at 8:30 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 8:20 pm EDT.

Sunshine

In July, the average sunshine in Saint Petersburg, Florida, is 11h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In July, the average maximum UV index of 7 translate into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. 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. 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. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the temperature in July in Saint Petersburg?

In July, in Saint Petersburg, Florida, the average high-temperature is 88°F (31.1°C), and the average low-temperature is 79.3°F (26.3°C). The average heat index (a.k.a. 'real feel', 'feels like'), which factors the actual air temperature with the relative humidity, in July is evaluated at 102.2°F (39°C).

What is the average humidity in July in Saint Petersburg?

In July, the average relative humidity is 74%.

What is the rainiest month in Saint Petersburg?

July is the month with the most rainfall in Saint Petersburg, Florida. Rain falls for 26.2 days and accumulates 5.24" (133mm) of precipitation.

How many days does it rain in July in Saint Petersburg?

In July, in Saint Petersburg, Florida, the rain falls for 26.2 days. Throughout July, 5.24" (133mm) of precipitation is accumulated.

How warm is the water in July in Saint Petersburg?

In Saint Petersburg, in July, the average water temperature is 85.5°F (29.7°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 July in Saint Petersburg?

The average day length in July in Saint Petersburg, Florida, is 13h and 42min.

What time are sunrise and sunset in July in Saint Petersburg?

In July, on the first day of the month, sunrise is at 6:38 am and sunset at 8:30 pm. On the last day of the month, in Saint Petersburg, Florida, sunrise is at 6:52 am and sunset at 8:20 pm EDT.

How long on average sun shines in July in Saint Petersburg?

In July, the average sunshine duration in Saint Petersburg is 11h.

What is the month with the highest UV index in Saint Petersburg?

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

How high is the UV index in July in Saint Petersburg?

The average daily maximum UV index in July in Saint Petersburg is 7. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.

Average temperature in July
Saint Petersburg, FL

Average temperature in July - Saint Petersburg, FL
  • Average high temperature in July: 88°F

The warmest month (with the highest average high temperature) is August (88.7°F).
The month with the lowest average high temperature is January (67.6°F).

  • Average low temperature in July: 79.3°F

The month with the highest average low temperature is August (79.5°F).
The coldest month (with the lowest average low temperature) is January (55.2°F).

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Average pressure in July
Saint Petersburg, FL

Average pressure in July - Saint Petersburg, FL
  • Average pressure in July: 30.02"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in July
Saint Petersburg, FL

Average wind speed in July - Saint Petersburg, FL
  • Average wind speed in July: 6.5mph

The windiest months (with the highest average wind speed) are January, March, October and November (8.9mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

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Average humidity in July
Saint Petersburg, FL

Average humidity in July - Saint Petersburg, FL
  • Average humidity in July: 74%

The month with the highest relative humidity is December (76%).
The month with the lowest relative humidity is May (71%).

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Average rainfall in July
Saint Petersburg, FL

Average rainfall in July - Saint Petersburg, FL
  • Average rainfall in July: 5.24"

The wettest month (with the highest rainfall) is July (5.24").
The driest months (with the least rainfall) are February and November (0.75").

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Average rainfall days in July
Saint Petersburg, FL

Average rainfall days in July - Saint Petersburg, FL
  • Average rainfall days in July: 26.2 days

The month with the highest number of rainy days is July (26.2 days).
The month with the least rainy days is November (7 days).

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Average sea temperature in July
Saint Petersburg, FL

Average sea temperature in July - Saint Petersburg, FL
  • Average sea temperature in July: 85.4°F

The best month for swimming (with the highest average sea temperature) is August (86.7°F).
The coldest month (with the lowest average sea temperature) is January (64°F).

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Average daylight in July /
Average sunshine in July
Saint Petersburg, FL

Average daylight in July / Average sunshine in July - Saint Petersburg, FL
  • Average daylight in July: 13h and 42min

The month with the longest days is June (Average daylight: 13h and 52min).
The month with the shortest days is December (Average daylight: 10h and 25min).

  • Average sunshine in July: 11h and 0min

The month with the most sunshine is May (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days in July
Saint Petersburg, FL

Average sunshine days in July - Saint Petersburg, FL
  • Average sunshine days in July: 3.1 days

The month with the most sunshine days is January (22.1 days).
The month with the least sunshine days is July (3.1 days).

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Average UV index in July
Saint Petersburg, FL

Average UV index in July - Saint Petersburg, FL
  • Average UV index in July: 7

The 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).

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Average cloud cover in July
Saint Petersburg, FL

Average cloud cover in July - Saint Petersburg, FL
  • Average cloud cover in July: 27

The month with the most cloud cover is December (Cloud cover 30).
The month with the least cloud cover is May (Cloud cover 21).

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Average visibility in July
Saint Petersburg, FL

Average visibility in July - Saint Petersburg, FL
  • Average visibility in July: 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).

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