August weather forecast
Saint Petersburg, FL

August sees the continuation of the summer atmosphere in Saint Petersburg, Florida but hints at a forthcoming change. Similar to July, high temperatures dominate, along with copious daylight hours, upholding the established summer motif. A drop in sea temperature against the peak in July acts as a signal of the season slowly changing. Despite the highest heat, the rainfall descends to 4.76in, indicating a gradual shift in climatic conditions. Coupled with the slightly lowered rainfall, clouds maintain consistent cover, shaping a dynamic sky most days.

Temperature

August, characterized by an average high temperature of 88.7°F (31.5°C) and a low temperature of 79.5°F (26.4°C), is generally the warmest month.

Heat index

For August, the heat index is appraised at a scorching 104°F (40°C). Implement heightened safety measures - risk of heat exhaustion and heat cramps is increased. Prolonged activity may result in heatstroke.
Keep in mind the heat index values are meant for areas in shade and with light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a composite of temperature and humidity figures to convey how warm it feels. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
The physiological response of the human body to excess warmth is to perspire, thereby cooling itself through sweat evaporation. Higher relative humidity impedes evaporation, thus reducing heat dispersion from the body, culminating in a sensation of overheating. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

In August, the average relative humidity is 73%.

Rainfall

In August, the rain falls for 25.6 days. Throughout August, 4.76" (121mm) of precipitation is accumulated. 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

The month with the warmest seawater is August, with an average ocean temperature of 86.7°F (30.4°C).
Note: Waters that are warmer than 86°F (30°C) might not provide the cooling effect most people seek during hot days.

Daylight

In August, the average length of the day is 13h and 6min.
On the first day of August, sunrise is at 6:53 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 7:52 pm EDT.

Sunshine

In August, the average sunshine is 9.7h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: An average UV index of 7 in August transforms into this advice:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Caution! Sand and water reflections can notably increase the UV radiation intensity.