St Petersburg (FL) Temperature by Month
St Petersburg, Florida, United States of America has an average annual maximum temperature of 27°C (81°F), ranging from 21°C (70°F) in January to 32°C (90°F) in August. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
St Petersburg Monthly Temperatures
The climate in St Petersburg is known for significant temperature differences throughout the year. At night, this contrast is just as clear, with lows ranging from 26°C (79°F) in August to 12°C (54°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in St Petersburg by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. August, the city's warmest month, sees 247 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: St Petersburg vs the United States of America
The map below shows the annual temperature across the United States of America. You can also select individual months if you want to compare a specific time of year.
very warm
warm
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moderate
cold
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St Petersburg vs World: Temperature Compared
St Petersburg's average annual maximum temperature is 27°C (81°F). To put that in context, here's how it compares to a few well-known destinations:
Seville, Spain averages 23°C (73°F) a year — one of the warmer cities in Western Europe, with long hot summers.
Glasgow, Scotland averages 13°C (55°F) a year — mild but often grey, with cold winters and rarely hot summers.
Beijing, China averages 20°C (68°F) annually, but with big seasonal swings — very cold winters and hot summers.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on St Petersburg's weather — including monthly rainfall, sunshine hours, and humidity — visit our St Petersburg climate page.
