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Postojna weather in December

Weather in Postojna: December

Average day temperature: 39.5°F
Average night temperature: 33.5°F
Number of sunny days: 10 days
Day length: 8.7 - 8.9 hours
Number of days with precipitation: 6 days
Precipitation totals: 4.4 in.

Air temperature in December, °F

Show year:
2023
2022
2021

The highest day temperature during December of 2023 was 57°F. At the same time the lowest night temperature was 28°F. Day and night temperature averages during December were 45.1°F and 38.4°F.

Sunny, partly cloudy and cloudy days

Mostly all days in December are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in December, in.

Precipitation total value in Postojna in December is 4.9 in. Other months of the year show relatively similar values.

Wind speed in December, mph

The average wind speed value in December is 4.6 mph It makes December lest windy month of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in December is: 2.5.

Best time for vacation in Postojna

Sunniest months:
August 20 days
July 19 days
June 16 days
Warmest months:
July 78.5 °F
August 77.7 °F
June 74.0 °F
Coldest months:
January 37.4 °F
December 39.5 °F
February 39.9 °F
Rainiest months:
May 9 days
June 8 days
September 7 days
Windiest months:
March 6.2 mph
February 6.2 mph
April 6.0 mph

Postojna on a weather map

Postojna
+37°F
NE 12 mph
Feels like: +28°F
Precip.: 63%
Places in Slovenia:
Name
°F
+30°F
+34°F
+43°F
+43°F
+32°F
+39°F
+41°F
+43°F
+43°F
+37°F
+43°F
+30°F
24 Hours Forecast
Postojna
Local time: 12:58
December 22, sunday
1500
37°F
NE
12 mph
1800
34°F
SE
1 mph
2100
34°F
SW
3 mph
December 23, monday
0000
32°F
SW
9 mph
0300
30°F
SW
17 mph
0600
30°F
SW
16 mph
0900
30°F
SW
7 mph
1200
32°F
SW
6 mph
Units of measurement: °C / °F