October weather forecast
Saint Petersburg, FL

October brings a discernible shift in weather to Saint Petersburg, Florida, with a palpable drop in temperatures compared to September. Along with cooling air temperatures, daylight hours reduce significantly, reinforcing the imminence of winter. Matching the atmospheric cooling, the sea temperature also witnesses a considerable fall. Despite these changes, October's relative humidity remains consistent, preserving a sense of balance. Highlighting October's unique trait, rainfall reduces substantially, dipping to 1.46in, emphasizing the onset of drier conditions.

Temperature

Saint Petersburg's shift into October sets the average high-temperature at a warm 82.2°F (27.9°C), a figure that deviates only slightly from September's 87.3°F (30.7°C). Throughout October, Saint Petersburg registers a consistent average low-temperature of 71.8°F (22.1°C).

Heat index

In October, the average heat index is evaluated at a tropical 87.8°F (31°C). Uninterrupted exposure and activity might result in fatigue, potentially causing heat cramps.
One should consider that heat index numbers are for shaded settings and light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values hold great significance to children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

In October, the average relative humidity is 72%.

Rainfall

In Saint Petersburg, during October, the rain falls for 11.2 days and regularly aggregates up to 1.46" (37mm) of precipitation. In Saint Petersburg, during the entire year, the rain falls for 172.1 days and collects up to 27.2" (691mm) of precipitation.

Ocean temperature

In Saint Petersburg, Florida, in October, the average water temperature is 81.1°F (27.3°C).
Note: In any water activity, temperatures between 77°F (25°C) and 84.2°F (29°C) are viewed as magnificent and exceptionally pleasant for prolonged enjoyment.

Daylight

In Saint Petersburg, Florida, the average length of the day in October is 11h and 29min.
On the first day of October, sunrise is at 7:23 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 6:46 pm EDT.

Sunshine

In Saint Petersburg, the average sunshine in October is 7.8h.

UV index

In Saint Petersburg, the average daily maximum UV index in October is 6. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index, 6 in October, converts into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Caution! The mirror effect of sand and water ups the UV radiation strength.