Heilbronn monthly weather averages

Contents

Average daytime temperature

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

Heilbronn average temperature chart (Celsius) Heilbronn average temperature chart (Fahrenheit)
Average monthly temperatures in Heilbronn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.9 5 9.3 13.9 18.4 21.7 23.7 23.2 19.9 14.3 7.8 3.9
°F 37.2 41 48.8 57 65.2 71.1 74.7 73.8 67.9 57.7 46 39.1

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.

Heilbronn monthly rainfall chart (mm) Heilbronn monthly rainfall chart (inches)
Average monthly rainfall in Heilbronn (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 41 41 41 52 74 87 64 74 50 45 51 48
inches 1.6 1.6 1.6 2 2.9 3.4 2.5 2.9 2 1.8 2 1.9
Rainy days 16 14 15 15 16 15 14 14 12 12 14 15

Average annual rainfall in Heilbronn: 724.733mm (285.3 inches)

Average daily sunshine

The bar chart below shows the average daily sunshine hours in Heilbronn

Heilbronn average daily sunshine chart
Average daily sunshine Heilbronn
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 3.2 4.4 5.9 7.1 7.7 8.2 7.5 6.1 4.1 2.4 1.8

Day / night temperatures

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

Heilbronn average minimum / maximum temperatures (Celsius) Heilbronn average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Heilbronn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -2.6 -1.8 0.9 4.1 8.1 11.5 13 12.5 9.4 5.5 1.5 -1.5
Max °C 3 5.2 9.6 14.2 18.7 22 24 23.5 20.2 14.5 8 4.1
Min °F 27.3 28.9 33.5 39.3 46.6 52.6 55.4 54.5 48.9 41.9 34.6 29.4
Max °F 32.4 35.1 41.4 48.4 56.1 62.1 65.3 64.4 58.6 50 40.5 34.3

Sea temperature

The graph below shows the average sea temperature.

Heilbronn average sea temperature chart (Celsius) Heilbronn average sea temperature chart (Fahrenheit)
Average sea temperature around Heilbronn in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 7.9 7 7.5 10.1 14.2 18.2 20.9 21.7 19.6 16.5 13.1 9.9
°F 46.3 44.5 45.5 50.1 57.5 64.8 69.6 71 67.3 61.6 55.5 49.9

Wind speed

The graph below shows the average wind speed.

Heilbronn average winspeed by month (km/h) Heilbronn average winspeed by month (mph)
Average wind speed in Heilbronn (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 9 9 10 9 8 8 8 7 7 7 9 9
mph 6 6 6 6 5 5 5 4 4 5 5 6

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.

Heilbronn relative humidity averages
Average relative humidity in Heilbronn
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
91% 84% 75% 69% 70% 71% 69% 70% 75% 81% 86% 90%

Other monthly averages

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Heilbronn weather stats

Heilbronn weather statistics
Hottest month: July 23.7°C 74.7°F
Driest month: February 41mm 1.6ins
Sunniest month: August 7.5hrs
Coldest month: January 2.9°C 37.2°F
Wettest month: June 87mm 3.4ins
Warmest sea: August 21.7°C 71.1°F
Map showing location of Heilbronn (49.13995, 9.22054) Heilbronn map pin © Google

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