SloveniaThe weather in June in Postojna
It's warm in June in Postojna with an average temperature of 26°C. Temperatures this month range from a low of 23°C to a high of 28°C. At night, you can expect temperatures between 9°C and 15°C.
Looking for great weather? June is a good time to be in Postojna. The temperatures are nice, and there’s not too much rain.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in June for Postojna, Slovenia. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 35°C in 2019, Postojna reached the highest temperature in June over the past 10 years. The lowest daytime temperature in this month was 16°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 3°C to a highest value of 21°C.
Rainfall amount
In June, there is an average of 90 mm of precipitation, spread over 13 days. The wind speed is around 3 Bft, mostly coming from the Southeast.
Daily weather in June for Postojna
Click on any day in June to get detailed info about the usual weather on that day in Postojna. Check out the historical temperatures and precipitation over the past 10 years on this day.
June weather comparison
| Postojna | New York | |
|---|---|---|
| Average temperature | 26°C | 27°C |
| Max. temperature | 28°C | 31°C |
| Min. temperature | 9°C | -5°C |
| Total precipitation | 90 mm | 78 mm |
| Rainy days | 13 days | 11 days |
Start of June
The month of June starts in Postojna with warm temps, averaging around 25°C during the day and nights around 12°C.
Mid June
By mid-June, daytime temps rise to around 26°C, with nights around 14°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of June
By the end of June, the average daytime temperature in Postojna is around 27°C, while nighttime temps are about 15°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Postojna for all months and discover the best travel time
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.
Temperature charts
These charts show the average temperatures in June in Postojna, Slovenia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in June in Postojna
Temperature in June in Postojna over the years
Precipitation charts
These charts show the average amount of precipitation in June 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.
Daily Precipitation in June in Postojna
Total precipitation in June in Postojna over the years
Daily UV index in June in Postojna
This chart shows the average daily UV index in June in Postojna, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in June 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.