What’s the climate like in Koper?
The current climate of Koper features average monthly temperatures ranging from highs of 30°C during the day to lows of 10°C. The average yearly temperature is around 20°C. At night, temperatures in the colder months average around 2°C and in the warmer months around 19°C.
The highest temperature recorded in Koper in recent years was 37°C in August 2017. The lowest daytime temperature recorded was -4°C in February 2018.
On average, Koper gets 944 mm of precipitation each year. Of this, about 4,6 cm is snowfall. For comparison, London gets 701 mm of precipitation each year.
Curious about the climate in other parts of Slovenia? Check out the weather and climate in places like Ljubljana, Bled, Bohinj, or have a look at other destinations in Slovenia.
Best time to visit Koper?
The best time to visit Koper for sunny weather is April through October. During this period, you'll have good temperatures and not too much rain, making it a great time to visit Koper. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Climate Table of Koper
The climate table of Koper shows the average temperatures, precipitation, snow, and UV index per month. The table gives an overview of the average day and night temperatures in degrees Celsius, the total amount of precipitation in millimetres, the total snowfall in centimetres, and the UV index for each month. Precipitation 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) | 10 | 12 | 14 | 18 | 22 | 28 | 30 | 30 | 25 | 20 | 15 | 11 |
| Temp. min (°C) | 3 | 4 | 5 | 9 | 13 | 18 | 20 | 19 | 16 | 12 | 8 | 4 |
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| Precipitation (mm) | 53 | 80 | 48 | 60 | 84 | 68 | 63 | 79 | 115 | 89 | 121 | 84 |
| Snow (cm) | 0,9 | 1,9 | 0,1 | 0,3 | 0 | 0 | 0 | 0 | 0 | 0 | 0,4 | 1,0 |
| UV Index | 3 | 4 | 5 | 7 | 6 | 6 | 7 | 8 | 5 | 3 | 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: 20°C
- Highest temperature: 30°C in July and August
- Lowest temperature: 10°C in January
- Precipitation*: 944 mm per year, averaging 79 mm per month
- Snowfall: 4,6 cm per year
- Driest months: 48 mm in March, 53 mm in January and 60 mm in April
- Wettest months: 121 mm in November, 115 mm in September and 89 mm in October
*Precipitation is measured as a combination of rain, snow, and hail
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Table of Contents
Average Temperature per Month in Koper
This graph shows the average maximum temperatures per month in Koper, 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 Koper
This graph shows how much precipitation Koper, Slovenia, gets on average per month. Precipitation 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 precipitation is measured in millimetres and the average is calculated based on the recorded precipitation per month from past years.
Average Snowfall per Month in Koper
This graph shows how much snow Koper, Slovenia, gets on average per month. The amount of snowfall is measured in centimetres and the average is calculated based on the recorded snowfall per month from past years.
Average UV Index per Month in Koper
This graph shows the average UV index per month in Koper, Slovenia. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Yearly Temperature in Koper
This graph shows the average yearly temperature in Koper, 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 Koper
This chart shows the total yearly precipitation in Koper, Slovenia, over the past few years. The total yearly precipitation, measured in millimetres, is the sum of all the rain that fell in the twelve months of that year.
Total Yearly Snowfall in Koper
This chart shows the total yearly snowfall in Koper, Slovenia, over the past few years. The total yearly snowfall, measured in centimetres, is the sum of all the snow that fell in the twelve months of that year.
Weather experiences in Koper
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Average Weather in Koper by Month
Click on a month below to see detailed weather info for Koper. 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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