Postojna monthly weather averages

Average daytime temperature

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

Postojna average temperature chart (Celsius) Postojna average temperature chart (Fahrenheit)
Average monthly temperatures in Postojna (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 2 3.8 7.4 11.8 16.6 20.2 22.8 22.3 18.8 13.7 7.6 3.2
°F 35.5 38.8 45.3 53.2 62 68.3 73.1 72.1 65.8 56.6 45.6 37.8

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.

Postojna monthly rainfall chart (mm) Postojna monthly rainfall chart (inches)
Average monthly rainfall in Postojna (mm and inches)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
mm 114 100 123 141 133 157 121 140 150 156 181 134
inches 4.5 3.9 4.8 5.5 5.2 6.2 4.8 5.5 5.9 6.1 7.1 5.3
Rainy days 14 13 14 16 16 17 14 14 13 13 14 14

Average daily sunshine

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

Postojna average daily sunshine chart
Average daily sunshine Postojna
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Hrs sunshine 3.8 5 5.6 6.6 8 8.4 9.9 8.9 7 5.4 3.7 3.5

Day / night temperatures

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

Postojna average minimum / maximum temperatures (Celsius) Postojna average minimum / maximum temperatures (Fahrenheit)
Maximum and minimum daily temperatures in Postojna (degrees centigrade and fahrenheit)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C -5.4 -4 -1.4 2 6.1 9.4 10.9 10.7 8.2 4.5 0 -4
Max °C 2.2 4 7.6 12 16.9 20.5 23.1 22.6 19.1 13.9 7.8 3.4
Min °F 22.4 24.9 29.5 35.6 43 48.8 51.6 51.2 46.7 40.1 32.1 24.8
Max °F 29.1 32 37.6 44.6 52.7 58.8 62.6 61.9 56.5 48.6 39 31.5

Sea temperature

The graph below shows the average sea temperature.

Postojna average sea temperature chart (Celsius) Postojna average sea temperature chart (Fahrenheit)
Average sea temperature around Postojna in degrees centigrade and fahrenheit
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
°C 11.9 10.7 11.2 13.8 18 22.3 24.8 25.3 22.8 19.5 16.6 14.2
°F 53.3 51.2 52.2 56.9 64.5 72.1 76.7 77.6 73.1 67.2 61.9 57.5

Wind speed

The graph below shows the average wind speed.

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

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.

Postojna relative humidity averages
Average relative humidity in Postojna
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
83% 80% 78% 77% 77% 79% 77% 79% 82% 83% 84% 84%

Other monthly averages

UV index Best time to go?

Postojna weather stats

Postojna weather statistics
Hottest month: July 22.8°C 73°F
Driest month: February 100mm 3.9ins
Sunniest month: July 9.9hrs
Coldest month: January 2°C 35.6°F
Wettest month: November 181mm 7.1ins
Warmest sea: August 25.3°C 77.5°F
Map showing location of Postojna (45.77694, 14.21667)

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