SloveniaThe climate of Postojna
The current climate in Postojna features temperatures ranging from a high of 27°C to a low of 6°C throughout the year. The average yearly temperature is around 17°C. At night, temperatures in the colder months average around -2°C and in the warmer months around 14°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Postojna, Slovenia.
Temperature records
The highest temperature recorded in Postojna in recent years was 36°C in August 2017. The lowest daytime temperature recorded was -10°C in February 2018.
Precipitation and snowfall
On average, Postojna gets 1325 mm of precipitation each year. Of this, about 61 cm is snowfall. For comparison, New York gets 1142 mm of precipitation each year.
Curious about the weather in other parts of Slovenia? Check out the climate and weather for spots like Ljubljana, Bled, Bohinj, or explore other destinations in Slovenia.
Best time to visit Postojna?
The best time to visit Postojna for mild to warm weather is April up to October. You might get some rain, but the temperatures are just right to explore Postojna.
Climate Table of Postojna
The climate table of Postojna shows the average temperatures, rainfall, snow, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 6 | 8 | 12 | 16 | 20 | 26 | 27 | 27 | 22 | 17 | 11 | 7 |
| Temp. min (°C) | -1 | 0 | 1 | 4 | 9 | 13 | 15 | 15 | 11 | 8 | 4 | 0 |
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| Precipitation (mm) | 94 | 121 | 72 | 88 | 126 | 90 | 83 | 98 | 154 | 123 | 155 | 121 |
| Snow (cm) | 14 | 16 | 4,7 | 3,1 | 0 | 0 | 0 | 0 | 0 | 0 | 8,2 | 15 |
| UV Index | 2 | 3 | 5 | 6 | 7 | 8 | 8 | 7 | 6 | 4 | 2 | 2 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
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Temperature charts
These charts display the average temperatures in Postojna, Slovenia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Postojna
Yearly Temperature in Postojna
Precipitation charts
These charts show the average amount of precipitation in Postojna, Slovenia. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Postojna
Total Yearly Precipitation in Postojna
Average Snowfall per Month in Postojna
Total Yearly Snowfall in Postojna
UV index chart
This chart shows the average UV index per month in Postojna, Slovenia. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Postojna
Weather experiences in Postojna
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Average weather in Postojna by month
Click on a month below to see detailed weather info for Postojna. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.