Aarau monthly weather averages

Average daytime temperature

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

Aarau average temperature chart (Celsius) Aarau average temperature chart (Fahrenheit)
Average monthly temperatures in Aarau (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2.2 4.3 8.3 13 17.1 20.5 22.9 21.8 18.7 13.2 7.3 3.1
°F 36 39.7 46.9 55.4 62.7 68.9 73.1 71.3 65.6 55.8 45.2 37.6

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.

Aarau monthly rainfall chart (mm) Aarau monthly rainfall chart (inches)
Average monthly rainfall in Aarau (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 64 61 62 83 105 132 119 136 85 60 77 64
inches 2.5 2.4 2.4 3.3 4.1 5.2 4.7 5.4 3.4 2.4 3 2.5
Rainy days 15 14 16 16 18 17 16 16 13 13 15 15

Average annual rainfall in Aarau: 1103mm (434.3 inches)

Average daily sunshine

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

Aarau average daily sunshine chart
Average daily sunshine Aarau
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 1.9 3.2 4.3 5.4 6.1 6.9 7.8 7 5.9 3.9 2.4 1.8

Day / night temperatures

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

Aarau average minimum / maximum temperatures (Celsius) Aarau average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Aarau (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -3 -1.7 0.6 4 7.7 11.1 12.7 12.2 9.9 6 1.6 -1.9
Max °C 2.4 4.5 8.5 13.2 17.3 20.8 23.1 22.1 18.9 13.4 7.5 3.3
Min °F 26.7 29 33 39.2 45.9 51.9 54.9 53.9 49.8 42.8 34.8 28.7
Max °F 31.5 34.5 40.1 47.5 54.5 60.6 64.2 62.8 57.9 49.5 40.1 33.3

Sea temperature

The graph below shows the average sea temperature.

Aarau average sea temperature chart (Celsius) Aarau average sea temperature chart (Fahrenheit)
Average sea temperature around Aarau in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 9.9 8.9 9.3 11.6 15.4 19.3 21.9 22.7 20.7 17.7 14.6 11.8
°F 49.8 48 48.8 52.9 59.7 66.7 71.5 72.9 69.3 63.9 58.2 53.3

Wind speed

The graph below shows the average wind speed.

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

Aarau relative humidity averages
Average relative humidity in Aarau
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
85% 80% 74% 71% 72% 73% 72% 75% 79% 82% 83% 84%

Other monthly averages

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Aarau weather stats

Aarau weather statistics
Hottest month: July 22.9°C 73.2°F
Driest month: October 60mm 2.4ins
Sunniest month: July 7.8hrs
Coldest month: January 2.2°C 36°F
Wettest month: August 136mm 5.4ins
Warmest sea: August 22.7°C 72.9°F
Map showing location of Aarau (47.39254, 8.04422) Aarau map pin © Google

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