Primorsko is a town and seaside resort in southeastern Bulgaria, the capital of the municipality of the same name, and part of Burgas Province. A well-known resort on the Bulgarian Black Sea Coast, it is located 52 km south of Burgas and has a beach strip of about 1 km2. The average temperature is 29 °C in July, often reaching 30-33 °C and making Primorsko a favourable place for tourism. Seawater temperature in July and August is 27-28 °C. Primorsko enjoys more than 2,300 sunshine hours a year, mostly in summertime. The rivers Ropotamo and Dyavolska reka run close to the town. The Ropotamo nature reserve and Snake Island reserve are also nearby.