Herisau monthly weather averages

Contents

Average daytime temperature

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

Herisau average temperature chart (Celsius) Herisau average temperature chart (Fahrenheit)
Average monthly temperatures in Herisau (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 1.6 3.3 7.3 11.7 16.2 19.5 21.9 21 17.9 12.3 6.3 2.5
°F 34.9 37.9 45.2 53.1 61.1 67.1 71.4 69.9 64.3 54.1 43.3 36.5

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.

Herisau monthly rainfall chart (mm) Herisau monthly rainfall chart (inches)
Average monthly rainfall in Herisau (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 62 60 61 84 108 128 130 127 94 70 80 64
inches 2.5 2.3 2.4 3.3 4.3 5 5.1 5 3.7 2.8 3.2 2.5
Rainy days 15 14 15 16 18 17 17 18 13 12 15 15

Average annual rainfall in Herisau: 1124.767mm (442.8 inches)

Average daily sunshine

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

Herisau average daily sunshine chart
Average daily sunshine Herisau
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 2.2 3.4 4.5 5.6 6.4 7.2 8 7.2 6.2 4.1 2.6 2

Day / night temperatures

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

Herisau average minimum / maximum temperatures (Celsius) Herisau average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Herisau (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -3.4 -2.6 -0.3 3.1 7 10.3 12.3 12 9.5 5.6 1 -2.2
Max °C 1.8 3.4 7.5 12 16.4 19.7 22.1 21.3 18.2 12.5 6.4 2.6
Min °F 26 27.3 31.5 37.5 44.6 50.5 54.1 53.5 49 42 33.8 28
Max °F 30.6 32.7 38.5 45.5 53.1 59 63 61.9 56.8 48.2 38.7 32.4

Sea temperature

The graph below shows the average sea temperature.

Herisau average sea temperature chart (Celsius) Herisau average sea temperature chart (Fahrenheit)
Average sea temperature around Herisau 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.

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

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.

Herisau relative humidity averages
Average relative humidity in Herisau
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
82% 79% 72% 70% 71% 72% 71% 74% 77% 80% 81% 82%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Herisau weather stats

Herisau weather statistics
Hottest month: July 21.9°C 71.4°F
Driest month: February 60mm 2.4ins
Sunniest month: July 8hrs
Coldest month: January 1.6°C 34.9°F
Wettest month: July 130mm 5.1ins
Warmest sea: August 23.1°C 73.6°F
Map showing location of Herisau (47.38615, 9.27916) Herisau map pin © Google

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