St. Petersburg, FL Weather
St. Petersburg hourly forecast: next 24 hours
Today's high of 92°F (33°C) is about 5°F (3°C) above the typical August high of 87°F (31°C).
Current conditions in detail
St. Petersburg weather tomorrow (Friday, August 7)
Tomorrow in St. Petersburg looks sunny, with a high of 89° and an overnight low of 76°. There is a 57% chance of rain - plan accordingly. Winds top out near 17 mph, and the UV index reaches 11 (extreme).
St. Petersburg 14-day forecast
About the weather in St. Petersburg
Weather in St. Petersburg is shaped by its humid subtropical climate - expect hot, humid summers and generally mild winters. July afternoons typically reach 88°F (31°C), while January highs hover near 68°F (20°C). Annual precipitation averages 49.5 inches (1258 mm) over about 150 rainy days.
St. Petersburg weather: quick facts
- Hottest month: July - highs near 88°F (31°C)
- Coldest month: January - highs near 68°F (20°C)
- Record high: 98°F (36°C) · Record low: 31°F (-1°C) (2015–2024)
- Wettest month: August (25 rainy days) · Sunniest: May (12.0 h sun/day)
- Climate type: humid subtropical - hot, humid summers and generally mild winters
Temperatures through the year
The warmest stretch of the year centers on July. Highs average 88°F (31°C) and overnight lows stay near 78°F (26°C). The coolest month is January, with typical highs of 68°F (20°C) and lows around 55°F (13°C). Based on 2015–2024 weather data, temperatures have reached as high as 98°F (36°C) and dropped as low as 31°F (-1°C).
Rain, sun and snow
August is usually the wettest month. It brings about 8.5 inches (216 mm) of rain over 25 days, while March is the driest. May brings the most sunshine, averaging 12.0 hours of sun a day.
Season by season
Spring (March through May)
Spring in St. Petersburg is pleasantly warm, with daytime highs averaging 80°F (27°C) and nights around 67°F (20°C); expect showers on roughly 25 days across the season.
Summer (June through August)
Summer in St. Petersburg brings hot afternoons, with daytime highs averaging 87°F (31°C) and nights around 78°F (25°C); expect showers on roughly 71 days across the season. With the humidity factored in, afternoons often feel hotter than the thermometer reads - run the numbers through the humidity and dew point converter to see why.
Fall (September through November)
Fall in St. Petersburg is hot, with daytime highs averaging 82°F (28°C) and nights around 71°F (22°C); expect showers on roughly 35 days across the season.
Winter (December through February)
Winter in St. Petersburg brings comfortable warmth, with daytime highs averaging 71°F (21°C) and nights around 58°F (14°C); expect showers on roughly 20 days across the season.
Average temperatures in St. Petersburg by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 68° | 55° | 8 | 2.9 in | 8.5 h/day | 75% |
| February | 72° | 59° | 6 | 2.0 in | 9.6 h/day | 78% |
| March | 76° | 63° | 6 | 1.8 in | 10.4 h/day | 73% |
| April | 80° | 67° | 8 | 2.6 in | 11.5 h/day | 71% |
| May | 85° | 72° | 10 | 3.2 in | 12.0 h/day | 70% |
| June | 87° | 76° | 21 | 6.5 in | 11.2 h/day | 78% |
| July | 88° | 78° | 25 | 6.8 in | 10.9 h/day | 78% |
| August | 87° | 78° | 25 | 8.5 in | 10.4 h/day | 79% |
| September | 86° | 76° | 20 | 6.8 in | 10.0 h/day | 79% |
| October | 83° | 71° | 9 | 3.5 in | 9.9 h/day | 74% |
| November | 77° | 65° | 6 | 2.0 in | 9.1 h/day | 74% |
| December | 72° | 60° | 6 | 3.0 in | 8.5 h/day | 78% |