Dubrovnik in September: weather, sea and travel tips
Is September a good time to visit?
September in Dubrovnik suits a warm city break, with days averaging +25 °C. Nights are noticeably cooler, and rain can change your plans. It helps if walks and museums both appeal to you.
Weather in September
September is nearly over, so the forecast matters more for travel in the next few days. Dubrovnik in October.
- Water
- +23 °C
- Daytime air
- +25 °C
- Night-time air
- +20 °C
Early, mid or late September?
| Travel dates | Day | Night | Sea |
|---|---|---|---|
| 1–10 September | +27 °C | +21 °C | +24 °C |
| 11–20 September | +25 °C | +20 °C | +23 °C |
| 21–30 September | +23 °C | +18 °C | +22 °C |
Water in September
Seasonal data gives an average water temperature of +23 °C for the month. It averages +24 °C in the first ten days and +22 °C towards the end. These are seasonal averages, so the water on your travel dates can be warmer or cooler. Before your trip, check the water temperature and weather in the forecast for Dubrovnik.
Rainfall in September
In September, the average is 7 days with precipitation. In 2020–2025, the number ranged from 3 to 10 per month. Light precipitation is included in the count. This does not mean that it rains all day.
September or October: which should you choose?
| Month | Day | Night | Sea |
|---|---|---|---|
| September | +25 °C | +20 °C | +23 °C |
| October | +20 °C | +16 °C | +20 °C |
September has warmer days than October. October offers cooler conditions for walks.
The annual charts for Dubrovnik compare air and sea temperatures with the rest of the year. For a closer look at September, see the September charts and archive by year.
Things to do in September
- In dry weather, a walk through the Old Town offers palaces, churches and fountains from different periods, giving you a way to discover Dubrovnik’s architecture on foot.
- The Rector’s Palace suits an interest in the Dubrovnik Republic. Its museum rooms offer historic interiors and works of art, including an option for time indoors when it rains.
- The Maritime Museum in Fort St John offers another rainy-day option. Its displays explore the maritime past of Dubrovnik and the surrounding region.
About the data
Air temperatures use the WorldWeatherAI archive for 2020–2025. Precipitation uses data for 2020–2025. Sea temperatures use WorldWeatherAI seasonal data.