Romanshorn monthly weather averages

Average daytime temperature

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

Romanshorn average temperature chart (Celsius) Romanshorn average temperature chart (Fahrenheit)
Average monthly temperatures in Romanshorn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.7 4.8 9 13.8 18.4 21.7 24 23.1 19.8 13.7 7.6 3.3
°F 36.9 40.6 48.2 56.8 65 71.1 75.2 73.6 67.7 56.6 45.6 37.9

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.

Romanshorn monthly rainfall chart (mm) Romanshorn monthly rainfall chart (inches)
Average monthly rainfall in Romanshorn (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 55 53 51 74 95 114 123 112 82 63 72 55
inches 2.1 2.1 2 2.9 3.7 4.5 4.8 4.4 3.2 2.5 2.8 2.2
Rainy days 14 13 14 15 17 16 16 16 12 12 14 14

Average annual rainfall in Romanshorn: 1005.4mm (395.8 inches)

Average daily sunshine

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

Romanshorn average daily sunshine chart
Average daily sunshine Romanshorn
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 3.1 4.5 5.8 6.8 7.8 8.5 7.5 6.3 3.9 2.3 1.8

Day / night temperatures

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

Romanshorn average minimum / maximum temperatures (Celsius) Romanshorn average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Romanshorn (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -2.5 -1.6 0.6 4.2 8.2 11.7 13.6 13.3 10.4 6.2 1.9 -1.6
Max °C 2.9 5 9.2 14 18.6 22 24.3 23.4 20.1 13.9 7.7 3.4
Min °F 27.6 29.2 33.1 39.6 46.8 53 56.4 55.9 50.6 43.1 35.4 29.1
Max °F 32.4 35.1 40.8 48.4 56.1 62.2 66 64.9 59.4 50 40.6 33.6

Sea temperature

The graph below shows the average sea temperature.

Romanshorn average sea temperature chart (Celsius) Romanshorn average sea temperature chart (Fahrenheit)
Average sea temperature around Romanshorn in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.8 8.7 9.2 11.7 15.7 19.7 22.4 23.1 21 17.8 14.5 11.7
°F 49.6 47.7 48.6 53 60.2 67.4 72.3 73.6 69.7 64 58.2 53.1

Wind speed

The graph below shows the average wind speed.

Romanshorn average winspeed by month (km/h) Romanshorn average winspeed by month (mph)
Average wind speed in Romanshorn (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 7 7 8 8 7 7 6 5 5 5 7 7
mph 5 5 5 5 4 4 4 3 3 3 4 4

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.

Romanshorn relative humidity averages
Average relative humidity in Romanshorn
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
86% 80% 72% 68% 70% 70% 70% 72% 76% 81% 83% 85%

Other monthly averages

UV index Best time to go?

Romanshorn weather stats

Romanshorn weather statistics
Hottest month: July 24°C 75.2°F
Driest month: March 51mm 2ins
Sunniest month: July 8.5hrs
Coldest month: January 2.7°C 36.9°F
Wettest month: July 123mm 4.8ins
Warmest sea: August 23.1°C 73.6°F
Map showing location of Romanshorn (47.56586, 9.37869) Romanshorn map pin © Google

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