Unification Day
Nationwide public holiday in Bulgaria · Ден на Съединението
Dates
| Year | Date | Weekday | Notes |
|---|---|---|---|
| 2026 | 6 September | Sunday | Nationwide |
| 2026 | 7 September | Monday | Unification Day (observed) Observed day off for Unification Day (Sun 6 Sep) |
| 2027 | 6 September | Monday | Nationwide |
Observed days are days off given instead of, or as well as, the holiday's own date, for example when it falls on a weekend or the law moves it to a Monday.
Where it applies
Everywhere in Bulgaria.
Is it a day off?
Yes. It is an official public holiday, so most employees have the day off. Government offices, schools and many businesses are usually closed; shops, restaurants and public transport may keep reduced hours. Check local announcements for opening times.
Make it longer
Sat 4 Sep – Mon 6 Sep is a 3-day weekend with no leave needed.
Plan more breaks with the leave planner.
Typical weather in Sofia around 6 September: high 26°C (78°F), low 13°C (55°F), rain on 26% of days.
Averages for 2015–2024, 3 days either side of the date, for the area around Sofia. Past averages, not a forecast.
Forecast for Monday 6 September in Sofia: (MET Norway)
Where to go for Unification Day
Unification Day marks the 1885 union of the Principality of Bulgaria and Eastern Rumelia, proclaimed in Plovdiv. Early September usually keeps summer warmth, and when 6 September falls on a Monday or Friday it creates a three-day weekend.
Budget-friendly
Kyustendil
Kyustendil province includes the Seven Rila Lakes, walked in summer and early autumn from the Panichishte area with an optional chairlift, as well as Rila Monastery. Back in town, mineral baths suit tired legs after a day of hiking.
Typically around 6 September: high 24°C (75°F), low 11°C (52°F), rain on 27% of days.
Forecast for 6 September:
mountainsnatureoutdoorsculture
Mid-range
Plovdiv
As the city where the Unification was proclaimed, Plovdiv fits the holiday's history. Walk the Old Town and the Roman stadium beneath the main pedestrian street, climb one of the city's hills for views and eat in the Kapana quarter.
Typically around 6 September: high 29°C (84°F), low 16°C (60°F), rain on 13% of days.
Forecast for 6 September:
cityhistoryculturefoodattractions
Varna
The Black Sea is usually still warm in early September. Between swims, see the Archaeological Museum with gold from the Varna Necropolis, the Roman thermae and the Sea Garden, or the Aladzha rock monastery north of the city.
Typically around 6 September: high 26°C (78°F), low 21°C (70°F), rain on 17% of days.
Forecast for 6 September:
beachcityhistoryattractions
Burgas
City beaches, the Sea Garden and fish restaurants make Burgas an easy base, with the old towns of Nesebar (UNESCO-listed) and Sozopol a short drive away. The nearby lakes lie on the Via Pontica bird migration route.
Typically around 6 September: high 28°C (82°F), low 19°C (65°F), rain on 20% of days.
Forecast for 6 September:
beachnaturefoodhistoryattractions
Kavala · Anatoliki Makedonia kai ThrakiA drive south across the Greek border, Kavala combines an Aegean harbour, an Ottoman-era old town on its headland and a stone aqueduct, with beaches nearby for late-summer swimming and seafood tavernas by the port.
Typically around 6 September: high 30°C (86°F), low 19°C (66°F), rain on 13% of days.
Forecast for 6 September:
beachfoodhistoryattractions
Trip ideas chosen by Public Holidays World, not sponsored. “Typically” lines are past averages, not forecasts; when the date is within about 9 days, a forecast is shown too. For trips abroad, check your government’s official travel advice and entry rules before you book.
About Unification Day
Unification Day on 6 September marks the unification in 1885 of the Principality of Bulgaria with Eastern Rumelia, an autonomous Ottoman province that had been created by the Congress of Berlin in 1878. The union was proclaimed in Plovdiv after a bloodless uprising and was then defended in the Serbo-Bulgarian War later that year. It is regarded as an important step in the formation of the modern Bulgarian state.
Traditions
The main celebrations take place in Plovdiv, the city where the union was proclaimed, with official ceremonies, concerts and festive events. Flags are displayed across the country, and official ceremonies are held in Sofia and other towns.
Editorial summary by Public Holidays World. Dates on this page come from the data source; customs vary by region and family.
Coming up next in Bulgaria
Wednesday, 22 September 2027
More for Bulgaria
Holiday dates are for general information and can change. Official government announcements take precedence.