Climate averages 1991–2020
St. Petersburg weather
in March.
A warm, moderately wet month: the 9th warmest and the 6th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
March is a warm month in St. Petersburg: daytime highs average 22.1°C and nights cool to about 16.2°C. By daytime temperature it is the 9th warmest of the 12 months.
Expect about 57 mm of rain on roughly 6 days, which makes March a moderately wet month (the 6th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 59 min on an average March day.
The nearest other city in this atlas is Largo (19 km away). In March its highs average 20.8°C, 1.2°C cooler than St. Petersburg, with 61 mm of rain.
Among the 498 cities listed in the United States, St. Petersburg ranks joint 55th of 498 for the warmest March highs and joint 134th of 498 for the driest March (rainfall, lowest first). The mean March high of those 498 cities is 14.9°C; St. Petersburg is 7.1°C warmer than that mean.
From March to April, average highs rise by 2.9°C to 25.0°C, and monthly rainfall falls from 57 mm to 44 mm.
The annual picture
March 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, selected | 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 | 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
March in nearby cities
- Largo in MarchUnited States · 19 kmHigh 20.8°C · Low 16.6°C · 61 mm rain
- Clearwater in MarchUnited States · 25 kmHigh 20.8°C · Low 16.4°C · 61 mm rain
- Town 'n' Country in MarchUnited States · 28 kmHigh 22.9°C · Low 15.5°C · 59 mm rain
- Tampa in MarchUnited States · 29 kmHigh 24.1°C · Low 14.7°C · 59 mm rain
- Brandon in MarchUnited States · 43 kmHigh 24.8°C · Low 14.7°C · 59 mm rain
- Lakeland in MarchUnited States · 78 kmHigh 25.0°C · Low 14.3°C · 58 mm rain
- Spring Hill in MarchUnited States · 80 kmHigh 23.9°C · Low 14.0°C · 64 mm rain
- Fort Myers in MarchUnited States · 152 kmHigh 26.3°C · Low 16.1°C · 43 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.