Weather in Dubrovnik in September 2025
Average weather
Average temperature in Dubrovnik in September
The expected average maximum temperature in September is +26°C with a maximum of +30°C and a minimum of +19°C.
The average maximum temperature goes down 9% by the end of the month, compared with the beginning of the month, from +26°C to +25°C.
Is Dubrovnik warm or cold in September?
Dubrovnik is typically warm in September.
Maximum temperatures go down compared to the previous month from +28°C to +25°C. The minimum temperature also goes down from +23°C to +19°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
September is one of the warmest months in Dubrovnik, here is the comparison with other months:
Water temperature in Dubrovnik in September
Water in Dubrovnik in September is Comfortable. It varies from +21°C to +27°C, with an average of +24°C. This is almost similar to the air temperature, which averages +25°C.
The water temperature in September is one of the warmest of the entire year:
Can you swim in Dubrovnik in September?
Climate in Dubrovnik in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +28°C | +25°C | +21°C | ||||
| Min. temperature | ||||||
| +16°C | +12°C | +6°C | ||||
| Max. temperature | ||||||
| +38°C | +34°C | +30°C | ||||
| Rainfall | ||||||
| 38 mm | 107 mm | 174 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Avg. water temperature | ||||||
| +26°C | +24°C | +21°C | ||||
| Humidity | ||||||
| 56% | 60% | 65% | ||||
| Air pressure | ||||||
| 1012 HPa | 1014 HPa | 1016 HPa | ||||
| Sunny days | ||||||
| 23 | 18 | 15 | ||||
| Cloudy days | ||||||
| 1 | 1 | 2 | ||||
| Rainy days | ||||||
| 3 | 6 | 10 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September weather is still as great as in August. It’s getting colder in September. From +28°C in the day, the average maximum temperature lowers to +25°C. Prepare for more rain. Average rainfall goes from 38 mm to 107 mm. Humidity rises from 56% to 60%. The average wind speed doesn’t change much during September, staying around 3 m/s. The days becoming less sunny, going from 23 sunny days in August to 18 in September.
Next month (October) brings a further decline in the weather.
Wind
The average wind speed is 4 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Dubrovnik is gradually increasing during September, going from 3 m/s to 3 m/s over the course of the month.
Rain
How was the weather last September in Dubrovnik?
Climate Change over Years
The climate in Dubrovnik in September has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+17°C) and the highest in 2018 (+22°C). The driest year was 2011 with only 872 mm of rainfall, and the wettest year was 2010 with 2139 mm.
FAQ
Is September a good time to visit Dubrovnik?
Can you sunbathe in Dubrovnik in September?
Can you swim in Dubrovnik in September?
Is Dubrovnik rainy in September?
Is it sunny in Dubrovnik in September?
Other cities in Croatia
Monthly weather in Dubrovnik
Source of the data
For this page, we’ve looked at the typical weather in Dubrovnik, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.