Climate averages 1991–2020
St. Petersburg weather
in July.
A hot, wet month: the 2nd warmest and the 9th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a hot month in St. Petersburg: daytime highs average 29.8°C and nights cool to about 25.5°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 135 mm of rain on roughly 20 days, which makes July a wet month (the 9th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 13 h 43 min on an average July day.
The nearest other city in this atlas is Largo (19 km away). In July its highs average 29.2°C, 0.6°C cooler than St. Petersburg, with 133 mm of rain.
Among the 498 cities listed in the United States, St. Petersburg ranks joint 271st of 498 for the warmest July highs and 475th of 498 for the driest July (rainfall, lowest first). The mean July high of those 498 cities is 30.3°C; St. Petersburg is 0.5°C cooler than that mean.
From July to August, average highs rise by 0.1°C to 29.9°C, and monthly rainfall rises from 135 mm to 146 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
St. Petersburg climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 19.2°C13.3°C | 13.3°C | 64 | 6.3 | 10.611 h |
| February | 20.1°C14.3°C | 14.3°C | 49 | 5.8 | 11.211 h |
| March | 22.1°C16.2°C | 16.2°C | 57 | 6.0 | 12.012 h |
| April | 25.0°C19.2°C | 19.2°C | 44 | 5.1 | 12.813 h |
| May | 27.9°C22.1°C | 22.1°C | 53 | 6.7 | 13.514 h |
| June | 29.4°C24.7°C | 24.7°C | 136 | 16.1 | 13.914 h |
| July, selected | 29.8°C25.5°C | 25.5°C | 135 | 20.0 | 13.714 h |
| August | 29.9°C25.6°C | 25.6°C | 146 | 21.2 | 13.113 h |
| September | 29.2°C24.7°C | 24.7°C | 139 | 15.8 | 12.312 h |
| October | 27.0°C21.8°C | 21.8°C | 63 | 7.1 | 11.512 h |
| November | 23.4°C17.8°C | 17.8°C | 42 | 4.2 | 10.811 h |
| December | 20.8°C15.1°C | 15.1°C | 53 | 5.6 | 10.410 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
July in nearby cities
- Largo in JulyUnited States · 19 kmHigh 29.2°C · Low 26.0°C · 133 mm rain
- Clearwater in JulyUnited States · 25 kmHigh 29.2°C · Low 25.9°C · 133 mm rain
- Town 'n' Country in JulyUnited States · 28 kmHigh 30.2°C · Low 25.1°C · 172 mm rain
- Tampa in JulyUnited States · 29 kmHigh 30.6°C · Low 24.3°C · 172 mm rain
- Brandon in JulyUnited States · 43 kmHigh 31.1°C · Low 24.1°C · 142 mm rain
- Lakeland in JulyUnited States · 78 kmHigh 31.2°C · Low 23.6°C · 160 mm rain
- Spring Hill in JulyUnited States · 80 kmHigh 31.1°C · Low 24.0°C · 195 mm rain
- Fort Myers in JulyUnited States · 152 kmHigh 31.2°C · Low 24.3°C · 165 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for St. Petersburg) is explained once on the St. Petersburg year overview and on the Sources, method and limits page.