What’s the climate like in 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.
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.
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.
- Average yearly temperature: 17°C
- Highest temperature: 27°C in July and August
- Lowest temperature: 6°C in January
- Precipitation*: 1325 mm per year, averaging 110 mm per month
- Snowfall: 61 cm per year
- Driest months: 72 mm in March, 83 mm in July and 88 mm in April
- Wettest months: 155 mm in November, 154 mm in September and 126 mm in May
*Precipitation is measured as a combination of rain, snow, and hail
Average Temperature per Month in Postojna
This graph shows the average maximum temperatures per month in Postojna, Slovenia. The temperatures are shown in degrees Celsius and the average is calculated based on the recorded temperatures per month from past years.
Average Precipitation per Month in Postojna
This graph shows how much rainfall Postojna, Slovenia, gets on average per month. Rainfall is always measured as water, even if it's snow or hail. This makes it easy to compare how much has fallen, regardless of the form of precipitation. The amount of rainfall is measured in millimeters, and the average is calculated based on the recorded rainfall per month from past years.
Average Snowfall per Month in Postojna
This graph shows how much snow Postojna, Slovenia, gets on average per month. The amount of snowfall is measured in centimeters and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Postojna
This graph 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.
Yearly Temperature in Postojna
This graph shows the average yearly temperature in Postojna, Slovenia. The yearly temperature, expressed in degrees Celsius, is the average of all twelve monthly temperatures summed up for that year.
Total Yearly Precipitation in Postojna
This chart shows the total yearly precipitation in Postojna, Slovenia, over the past few years. The total yearly precipitation, measured in millimeters, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Postojna
This chart shows the total yearly snowfall in Postojna, Slovenia, over the past few years. The total yearly snowfall, measured in centimeters, is the sum of all the snow that fell in the twelve months of that year.
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.
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