Is Thessaloniki the same as Thessalonica? Yes. Thessalonica was the most common spelling in early 20th century, which later changed to Salonika, and finally to the version we have now. In English, the city can be called Thessaloniki, Salonika, Thessalonica, Salonica, Thessalonika, Saloniki, Thessalonike, or Thessalonice. Is Thessaloniki in northern Greece? Yes. Thessaloniki is located at the northwest corner of the Aegean Sea, on the Thermaic Gulf. But 'north' does not mean 'cold'! Expect sunny weather and perfect beach conditions from April to late September. Are there beaches in Thessaloniki? There are no beaches in the city centre, since Thessaloniki is a real port city. However, you can easily reach sandy beaches by boat, car or bus. Alternatively, explore the Halkidiki area after a few days in the city. Thessaloniki's Macedonia airport is very well connected.