SloveniaAverage weather for Koper in August
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.
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. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
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.
Since it cools down at night, it’s a good idea to wear layers.
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.
Because temperatures drop in the evening, wearing layers is recommended.
In August, there is an average of 79 mm of precipitation, spread over 7 days. The wind speed is around 3 Bft, mostly coming from the East.
Koper in August |
New York | ||
|---|---|---|---|
 Average temperature |
30°C | 30°C | |
 Max. temperature |
32°C | 31°C | |
| Min. temperature |
28°C | -5°C | |
 Total precipitation |
79 mm | 79 mm | |
| Rainy days |
7 days | 13 days | |
July
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.
Is August a good time to visit Koper?
August is a good month to be in Koper for sunny weather. You’ll have high temperatures and not too much rain.
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.
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.
Daily Temperature in August in Koper
This chart shows the average daily high and low temperatures in August for Koper, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in August in Koper
The chart below shows the average daily precipitation in August for Koper, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 7 days of precipitation in Koper.
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.
Temperature in August in Koper over the years
This chart shows the average temperature in August in Koper, measured in degrees Celsius, over the past few years.
Total precipitation in August in Koper over the years
This chart shows the average precipitation in August in Koper, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
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.
Weather experiences in August in Koper
Have you been to Koper in August?
Share your weather experience in August in Koper.
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.
