Commercial shipping facilities are being relocated inland into the lakes and canals, while the bay remains a recreation area; almost all the waterfront is parkland. It enjoys a mild climate influenced by the sea with long, mild, akin to Mediterranean, autumns, and sunny and hot, yet considerably cooler than Mediterranean summers moderated by breezes and regular rainfall.Although Varna receives about two thirds of the average rainfall for Bulgaria, abundant groundwater keeps its wooded hills lush throughout summer.Excavations at nearby Thracian sites have shown uninterrupted occupation from the 7th to the 4th century BC and close commercial relations with the colony.

The name Odessos could have been pre-Greek, arguably of Greek Carian origin.

A member of the Pontic Pentapolis, Odessos was a mixed community—contact zone between the Ionian Greeks and the Thracian tribes (Getae, Krobyzoi, Terizi) of the hinterland.

In winter temperatures are about 0 degrees at night and 5-10 degrees C during the day.

Snow is possible in December, January, February and rarely in March.

The name could be of Varangian origin, as Varangians had been crossing the Black Sea for many years, reaching Constantinople in the early Middle Ages.

In Swedish, the meaning of 'värn' is 'shield', 'defense' - hence Varna is a defended, fortified place.

Temperatures in summer usually vary between 18 C and 21 degrees C in the night and 25–35 C during the day.

Seawater temperature during the summer months is usually around 23–27 degrees C.

Varna has a humid subtropical climate (Köppen climate classification Cfa), with considerable maritime and continental influences.

The summer begins in early May and lasts till early October.

Snow falls in winter only several times and can quickly melt.