September in Dubrovnik averages highs of 26 °C (78 °F) and lows of 18 °C (64 °F), with about 7 rainy days and 12 h 25 min of daylight. The sea is warm, around 25 °C (77 °F).
September weather in Dubrovnik at a glance
average high to low each dot ≈ 3 rainy days
Is September a good time to visit Dubrovnik?
Good time to go: comfortably warm and some rain. September is usually high season in Dubrovnik: book rooms early, as prices are typically at their highest.
Our rule: a month scores 2 points for comfortable average highs of 18–28 °C (1 point for 14–18 or 28–32 °C) and 2 points for 5 or fewer rainy days (1 point for 6–10). Average highs above 35 °C or below 8 °C make it a tough month whatever the rain. A rainy day here means 2 mm of rain or more. 4 points = great, 3 = good, 2 = mixed, 0–1 = tough.
Holidays and events in September 2026
No public holidays fall in September 2026 in Croatia, so opening hours should be normal.
Things to do in Dubrovnik in September
September's weather suits a mix of outdoor sights and museums, so the open-air ones come first.
- City walls — walk them at 8am outdoors
- Stradun and the Old Town outdoors
- Mount Srđ cable car — sunset outdoors
- Lokrum island — short ferry outdoors
- Kayak around the walls outdoors
- Rector's Palace indoors
- Beach and swimming — the sea averages 25 °C (77 °F) in September. outdoors
Where to stay: Inside the Old Town for atmosphere; Ploče for views; Lapad for beaches and value.
What to pack for Dubrovnik in September
- Light layers for the day.
- Swimwear.
- Comfortable walking shoes.
What a day in Dubrovnik costs
| Budget traveller | Mid-range | |
|---|---|---|
| Typical total per person, per day | €60–140 | €170–380 |
Excluding flights. September is usually high season in Dubrovnik: book rooms early, as prices are typically at their highest.
September in nearby cities
| City | High / low | Rainy days | Verdict |
|---|---|---|---|
| Naples | 26° / 18° | 8 | Good time to go |
| Rome | 27° / 17° | 7 | Good time to go |
| Budapest | 23° / 13° | 6 | Good time to go |
Want the whole trip planned? Join the Journey waitlist: tell it where, when and your budget, and it plans every day hour by hour.
FAQ
Is September a good time to visit Dubrovnik?
By the numbers, September is a good time to go: comfortably warm and some rain, with average highs of 26 °C (78 °F) and about 7 rainy days. September is usually high season in Dubrovnik: book rooms early, as prices are typically at their highest. The best months for weather are May, September, October.
How warm is Dubrovnik in September?
Average highs are 26 °C (78 °F) and lows 18 °C (64 °F) (2015–2024 averages). The sea is warm, around 25 °C (77 °F).
Does it rain a lot in Dubrovnik in September?
Expect about 7 days with 2 mm of rain or more, about 133 mm in total. It is the 4th driest month of the year in Dubrovnik.
Sources: climate averages from Open-Meteo historical weather (ERA5 reanalysis, 2015–2024); sea temperatures from the Open-Meteo marine API (2023–2024); public holidays from Nager.Date. Daylight is calculated for the 15th of the month. Averages are a guide, not a forecast. Costs are typical ranges per person per day, excluding flights.