During the summer months, Thessaloniki experiences hot and dry weather. From June to August, temperatures often soar above 30°C (86°F), which makes it a great destination for sun-seekers and beach enthusiasts. The city's proximity to the Thermaic Gulf provides respite from the warmth, with refreshing sea breezes offering some respite from the scorching sun. The clear skies and long hours of sunlight during summer time allow it to be great for exploring Thessaloniki's historic landmarks, such as the White Tower, the Arch of Galerius, and the Byzantine walls.

As autumn approaches, Thessaloniki undergoes a transition characterized by mild temperatures and occasional rainfall. From September to November, temperatures gradually decrease, which range from 15°C to 25°C (59°F to 77°F). While the elements remains generally pleasant, occasional rain showers are normal, particularly in October. However, these showers are generally short-lived and subscribe to the city's lush greenery, adding to its picturesque charm.

Winter in Thessaloniki brings cooler temperatures and increased rainfall. From December to February, temperatures can drop to around 5°C to 10°C (41°F to 50°F), occasionally dipping below freezing at night. Rainfall is more frequent in this period, with December being the wettest month. While snowfall is rare in the town itself, nearby mountainous regions may experience snow, offering opportunities for winter sports enthusiasts to hit the slopes.

Spring heralds the arrival of warmer temperatures and blooming flora. From March to May, Thessaloniki experiences mild and pleasant weather, with temperatures gradually rising from 10°C to 20°C (50°F to 68°F). Spring showers are normal but typically short-lived, giving way to sunny days and clear skies. The city comes alive with vibrant colors as flowers bloom throughout its parks and gardens, developing a picturesque backdrop for outdoor activities and leisurely strolls over the Wetter Thessaloniki.

Despite its varied weather patterns, Thessaloniki remains a captivating destination year-round, offering visitors a varied selection of experiences and attractions to enjoy. Whether basking in summer time sun, admiring the autumn foliage, cozying up during winter months months, or reveling in the sweetness of springtime blooms, Thessaloniki's ever-changing weather only contributes to its allure and ensures there's always something new to find out in this historic city by the sea.