Sion monthly weather averages

Contents

Average daytime temperature

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

Sion average temperature chart (Celsius) Sion average temperature chart (Fahrenheit)
Average monthly temperatures in Sion (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C -0.5 0.6 3.7 7.7 11.8 15.6 18.4 17.4 14.6 9.6 4 0.8
°F 31 33 38.6 45.9 53.2 60.1 65.1 63.4 58.3 49.3 39.2 33.5

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.

Sion monthly rainfall chart (mm) Sion monthly rainfall chart (inches)
Average monthly rainfall in Sion (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 82 81 78 89 105 121 104 128 98 84 101 86
inches 3.2 3.2 3.1 3.5 4.1 4.8 4.1 5.1 3.9 3.3 4 3.4
Rainy days 14 14 16 17 19 18 16 16 14 13 14 14

Average annual rainfall in Sion: 1211.067mm (476.8 inches)

Average daily sunshine

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

Sion average daily sunshine chart
Average daily sunshine Sion
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.5 4.3 4.9 5.5 5.9 6.7 7.9 7.1 6 4.7 3.6 3.4

Day / night temperatures

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

Sion average minimum / maximum temperatures (Celsius) Sion average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Sion (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -6 -5.3 -3.3 -0.1 3.9 7.4 9.6 9.2 7.2 3.5 -1.6 -4.8
Max °C -0.4 0.7 3.9 7.9 12 15.8 18.6 17.7 14.8 9.8 4.2 1
Min °F 21.2 22.5 26.2 31.8 38.9 45.3 49.3 48.5 45 38.2 29.2 23.5
Max °F 26.2 27.9 32.5 39 46.2 52.9 57.4 56.1 51.8 43.9 34.3 28.6

Sea temperature

The graph below shows the average sea temperature.

Sion average sea temperature chart (Celsius) Sion average sea temperature chart (Fahrenheit)
Average sea temperature around Sion in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 11 10.1 10.4 12.4 15.9 19.6 22.2 23.1 21.1 18.3 15.3 12.8
°F 51.8 50.1 50.8 54.3 60.6 67.3 72 73.5 70.1 64.9 59.5 55

Wind speed

The graph below shows the average wind speed.

Sion average winspeed by month (km/h) Sion average winspeed by month (mph)
Average wind speed in Sion (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 13 13 13 12 10 10 9 9 9 10 12 13
mph 8 8 8 8 7 6 6 5 6 6 7 8

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.

Sion relative humidity averages
Average relative humidity in Sion
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
73% 74% 71% 74% 76% 74% 73% 75% 77% 77% 76% 73%

Other monthly averages

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Beta

Current (hourly) weather 15 day forecast

Sion weather stats

Sion weather statistics
Hottest month: July 18.4°C 65.1°F
Driest month: March 78mm 3.1ins
Sunniest month: July 7.9hrs
Coldest month: January -0.5°C 31.1°F
Wettest month: August 128mm 5ins
Warmest sea: August 23.1°C 73.6°F
Map showing location of Sion (46.22908, 7.35942) Sion map pin © Google

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