The weather in August in Koper

It's hot in August in Koper with an average temperature of 30°C. Temperatures this month range from a low of 28°C to a high of 32°C. At night, you can expect temperatures between 18°C and 21°C.

August is a good month to be in Koper for sunny weather. You’ll have high temperatures and 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 August for Koper, 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 37°C in 2017, Koper reached the highest temperature in August over the past 10 years. The lowest daytime temperature in this month was 19°C in 2023. The extreme nighttime temperatures ranged from a lowest recorded value of 11°C to a highest value of 26°C.

Rainfall amount

In August, there is an average of 79 mm of precipitation, spread over 10 days. The wind speed is around 3 Bft, mostly coming from the East.

Daily weather in August for Koper

Click on any day in August to get detailed info about the usual weather on that day in Koper. Check out the historical temperatures and precipitation over the past 10 years on this day.

August weather comparison

  Koper New York
Average temperature 30°C 30°C
Max. temperature 32°C 31°C
Min. temperature 18°C -5°C
Total precipitation 79 mm 79 mm
Rainy days 10 days 13 days

Start of August

The month of August starts in Koper with hot temps, averaging around 31°C during the day and nights around 21°C.

Mid August

By mid-August, daytime temps drop to around 30°C, with nights around 20°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of August

By the end of August, the average daytime temperature in Koper is around 29°C, while nighttime temps are about 19°C. A shower might pop up, but overall, the weather will be dry and sunny.

Find affordable trips to Koper

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 Koper 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 August in Koper, Slovenia. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in August in Koper

Temperature in August in Koper over the years

Precipitation charts

These charts show the average amount of precipitation in August in Koper, 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 August in Koper

Total precipitation in August in Koper over the years

Daily UV index in August in Koper

This chart shows the average daily UV index in August in Koper, 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 August in Koper

Have you been to Koper in August?

Share your weather experience in August in Koper.

Your email will not be shown in the review and will not be shared with others.

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.