Saint Petersburg
Florida, USA
Long-term weather forecast
Long-term weather forecast

August weather forecast and climate
Saint Petersburg, FL

Scenic palm trees and a straight road to St. Petersburg in Florida, a beautiful clear waterfront, on a hot and sunny day with cloudy sky
Scenic palm trees and a straight road to St. Petersburg in Florida, a beautiful clear waterfront, on a hot and sunny day with cloudy sky
August, the last month of the summer, in Saint Petersburg, is another tropical month, with average temperature fluctuating between 90°F (32.2°C) and 75.9°F (24.4°C).

Temperature

July and August, with an average high-temperature of 90°F (32.2°C), are the warmest months.

Rainfall

August is the month with the most rainfall. Rain falls for 17 days and accumulates 7.8" (198.1mm) of precipitation.

Ocean temperature

The month with the warmest seawater is August, with an average ocean temperature of 86.7°F (30.4°C).
Note: The water temperature above 86°F (30°C) is arguably regarded as unpleasant. The primary purpose of entering the water - cooling down from sunshine and high temperatures - is lost.

Daylight

The average length of the day in August is 13.1h.

Sunshine

In Saint Petersburg, Florida, the average sunshine is 8h.

UV index

Months with the highest UV index are May through August, with an average maximum UV index of 11. A UV Index estimate of 11, and higher, represents an ultimate health vulnerability from unprotected exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 11 in August interpret into the following advice:
Take all required precautions, as unprotected skin and eyes can burn in minutes. 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. A broad-spectrum sunscreen of SPF 30+ should be liberally applied and re-applied every two hours, and immediately after an outdoor workout or a swim. Beware! The strength of the UV rays is significantly increased by the reflection of the water and sand.

What are the warmest months in Saint Petersburg?

Warmest months are July and August, with an average high-temperature of 90°F (32.2°C).

What is the temperature in August in Saint Petersburg?

In Saint Petersburg, in August, the average high-temperature is 90°F (32.2°C), and the average low-temperature is 75.9°F (24.4°C).

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

In August, in Saint Petersburg, the rain falls for 17 days. Throughout August, 7.8" (198.1mm) of precipitation is accumulated.

What is the rainiest month in Saint Petersburg?

August is the month with the most rainfall. Rain falls for 17 days and accumulates 7.8" (198.1mm) of precipitation.

When is the ocean warmest in Saint Petersburg?

August is the month with the warmest seawater in Saint Petersburg, with an average ocean temperature of 86.7°F (30.4°C).

What is the ocean temperature in August in Saint Petersburg?

In Saint Petersburg, in August, the average water temperature is 86.7°F (30.4°C). For swimming, other intense water activities, temperature above 86°F (30°C) is arguably unpleasant, as the water cooling effect is missing.

What is the average length of the day in August in Saint Petersburg?

The average length of the day in August is 13.1h.

How many hours of sunshine does Saint Petersburg have in August?

In Saint Petersburg, the average sunshine in August is 8h.

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

May through August, with an average maximum UV index of 11, are months with the highest UV index.

What is the UV index intensity in August in Saint Petersburg?

In August, the average daily maximum UV index in Saint Petersburg, Florida, is 11. A UV Index reading of 11, and higher, represents an extreme health threat from the exposure to the Sun's UV rays.
Average temperature in August - Saint Petersburg, FL
  • Average high temperature in August: 90°F

Warmest months (with the highest average high temperature) are July and August (90°F).
The month with the lowest average high temperature is January (70°F).

  • Average low temperature in August: 76°F

Months with the highest average low temperature are July and August (76°F).
The coldest month (with the lowest average low temperature) is January (53°F).

Average rainfall in August - Saint Petersburg, FL
  • Average rainfall in August: 7.8"

The wettest month (with the highest rainfall) is August (7.8").
The driest month (with the lowest rainfall) is April (1.6").

Average rainfall days in August - Saint Petersburg, FL
  • Average rainfall days in August: 17 days

The month with the highest number of rainy days is August (17 days).
The month with the lowest number of rainy days is April (4 days).

Average sea temperature in August - Saint Petersburg, FL
  • Average sea temperature in August: 86.7°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).

Average daylight in August / Average sunshine in August - Saint Petersburg, FL
  • Average daylight in August: 13.1h

The month with the longest days is June (Average daylight: 13.9h).
The month with shortest days is December (Average daylight: 10.4h).

  • Average sunshine in August: 8h

Months with most sunshine are April and May (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 6h).

Average UV index in August - Saint Petersburg, FL
  • Average UV index in August: 11

Months with the highest UV index are May, June, July and August (UV index 11).
Months with the lowest UV index are January and December (UV index 5).