Ollon monthly weather averages

Average daytime temperature

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

Ollon average temperature chart (Celsius) Ollon average temperature chart (Fahrenheit)
Average monthly temperatures in Ollon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 0.2 1.6 4.9 9.2 13.3 17.3 20 19 16.1 10.8 4.9 1.4
°F 32.4 34.9 40.9 48.6 55.9 63.2 67.9 66.2 61 51.5 40.8 34.5

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.

Ollon monthly rainfall chart (mm) Ollon monthly rainfall chart (inches)
Average monthly rainfall in Ollon (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 81 80 74 77 89 105 88 111 89 76 99 86
inches 3.2 3.1 2.9 3 3.5 4.1 3.5 4.4 3.5 3 3.9 3.4
Rainy days 14 14 15 16 18 17 15 16 13 13 14 14

Average annual rainfall in Ollon: 1108.167mm (436.3 inches)

Average daily sunshine

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

Ollon average daily sunshine chart
Average daily sunshine Ollon
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.1 4 4.8 5.6 6.1 7.1 8.3 7.4 6.2 4.5 3.3 3

Day / night temperatures

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

Ollon average minimum / maximum temperatures (Celsius) Ollon average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Ollon (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -5.4 -4.6 -2.5 0.8 4.7 8.3 10.2 9.8 7.7 4 -0.9 -4.2
Max °C 0.4 1.8 5.1 9.4 13.5 17.6 20.2 19.3 16.3 11 5.1 1.6
Min °F 22.4 23.8 27.5 33.4 40.5 46.9 50.4 49.6 45.9 39.2 30.5 24.5
Max °F 27.5 29.5 34.3 41.2 48.4 55.2 59.4 58.1 53.6 45.5 35.8 29.7

Sea temperature

The graph below shows the average sea temperature.

Ollon average sea temperature chart (Celsius) Ollon average sea temperature chart (Fahrenheit)
Average sea temperature around Ollon in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 10.9 10 10.3 12.2 15.5 19.1 21.6 22.6 20.8 18 15.1 12.7
°F 51.7 50 50.6 53.9 59.9 66.3 71 72.6 69.4 64.5 59.2 54.8

Wind speed

The graph below shows the average wind speed.

Ollon average winspeed by month (km/h) Ollon average winspeed by month (mph)
Average wind speed in Ollon (mph and kmh)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
km/h 12 12 12 12 10 9 9 8 9 9 11 12
mph 7 7 7 7 6 6 6 5 5 6 7 7

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.

Ollon relative humidity averages
Average relative humidity in Ollon
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
76% 75% 71% 72% 74% 72% 70% 72% 75% 78% 77% 76%

Other monthly averages

UV index Best time to go?

Ollon weather stats

Ollon weather statistics
Hottest month: July 20°C 68°F
Driest month: March 74mm 2.9ins
Sunniest month: July 8.3hrs
Coldest month: January 0.2°C 32.4°F
Wettest month: August 111mm 4.4ins
Warmest sea: August 22.6°C 72.7°F
Map showing location of Ollon (46.29524, 6.99314) Ollon map pin © Google

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