Saint Petersburg (FL) monthly weather averages

Average daytime temperature

The bar chart below shows the average monthly peak daytime temperatures at Saint Petersburg

Saint Petersburg average temperature chart (Celsius) Saint Petersburg average temperature chart (Fahrenheit)
Average monthly temperatures in Saint Petersburg (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 20.3 21 24.2 27.3 30.1 31.5 32.1 32.1 31.2 28.6 24.6 21.6
°F 68.5 69.8 75.5 81.2 86.1 88.7 89.8 89.8 88.2 83.4 76.4 70.9

Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.

Average rainfall & rainy days

The graph below shows the average rainfall and number of rainy days per month.

Saint Petersburg monthly rainfall chart (mm) Saint Petersburg monthly rainfall chart (inches)
Average monthly rainfall in Saint Petersburg (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 62 78 87 39 76 136 189 194 165 68 47 64
inches 2.4 3.1 3.4 1.6 3 5.4 7.4 7.6 6.5 2.7 1.9 2.5
Rainy days 7 7 6 4 6 12 15 17 12 7 6 6

Average annual rainfall in Saint Petersburg: 1151mm (453.1 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Saint Petersburg

Saint Petersburg average daily sunshine chart
Average daily sunshine Saint Petersburg
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 7.1 7.8 9.2 10.6 10.8 9.9 9.2 8.7 8.1 8.3 7.4 6.9

Day / night temperatures

The graph below shows the daily range of temperatures for each month.

Saint Petersburg average minimum / maximum temperatures (Celsius) Saint Petersburg average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Saint Petersburg (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 10.1 11 14 16.8 19.9 22.5 23.5 23.5 22.8 19 14.3 11.2
Max °C 20.5 21.3 24.4 27.6 30.3 31.7 32.3 32.3 31.5 28.8 24.9 21.9
Min °F 50.2 51.7 57.2 62.2 67.8 72.5 74.3 74.3 73 66.2 57.7 52.1
Max °F 59.5 61 66.6 72 77.2 80.8 82.2 82.2 80.8 75 67.3 61.7

Sea temperature

The graph below shows the average sea temperature.

Saint Petersburg average sea temperature chart (Celsius) Saint Petersburg average sea temperature chart (Fahrenheit)
Average sea temperature around Saint Petersburg in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 20.4 19.6 20.1 22 24.9 27.7 29.2 29.8 29.2 27.3 24.7 22.3
°F 68.7 67.2 68.2 71.6 76.8 81.9 84.6 85.6 84.5 81.2 76.4 72.2

Wind speed

The graph below shows the average wind speed.

Saint Petersburg average winspeed by month (km/h) Saint Petersburg average winspeed by month (mph)
Average wind speed in Saint Petersburg (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 14 15 16 15 14 13 12 11 12 14 14 14
mph 9 9 10 9 9 8 7 7 8 9 9 9

A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.

Relative humidity

The graph below shows the average relative humidity.

Saint Petersburg relative humidity averages
Average relative humidity in Saint Petersburg
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
75% 73% 72% 69% 71% 75% 78% 79% 78% 74% 75% 75%