SloveniaAverage weather for Portorož in August
It's hot in August in Portorož 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 Portorož 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 19°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
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 Portorož is around 30°C, while nighttime temps are about 19°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Because temperatures drop in the evening, wearing layers is recommended.
Water temperature
The water temperature at Portorož is 29°C this month. Nice and warm for a swim.
In August, there is an average of 82 mm of precipitation, spread over 7 days. The wind speed is around 3 Bft, mostly coming from the East.
Portorož in August |
New York | ||
|---|---|---|---|
 Average temperature |
30°C | 30°C | |
 Max. temperature |
32°C | 31°C | |
| Min. temperature |
28°C | -5°C | |
 Total precipitation |
82 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 Portorož?
August is a good month to be in Portorož for sunny weather. You’ll have high temperatures and not too much rain.
Temperature records
With 37°C in 2017, Portorož 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 10°C to a highest value of 27°C.
Check out the climate of Portorož 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 Portorož
This chart shows the average daily high and low temperatures in August for Portorož, 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 Portorož
The chart below shows the average daily precipitation in August for Portorož, 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 Portorož.
Daily UV index in August in Portorož
This chart shows the average daily UV index in August in Portorož, 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 Portorož over the years
This chart shows the average temperature in August in Portorož, measured in degrees Celsius, over the past few years.
Total precipitation in August in Portorož over the years
This chart shows the average precipitation in August in Portorož, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in August for Portorož
Click on any day in August to get detailed info about the usual weather on that day in Portorož. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in August in Portorož
Have you been to Portorož in August?
Share your weather experience in August in Portorož.
Average weather in Portorož by month
Click on a month below to see detailed weather info for Portorož. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
