Last updated: February 6, 2025
In September, Thessaloniki experiences a delightful transition from summer to autumn. The maximum temperature often reaches a hot 35°C (95°F), while the average is a pleasant 22°C (72°F), offering ideal conditions for both exploration and relaxation. Despite this warmth, evenings can cool down significantly, with minimum temperatures dipping to 8°C (46°F). Rain is infrequent but may occur on about 5 days, collectively bringing around 27 mm (1.1 in) of precipitation. The humidity level, averaging 57%, adds to the overall comfort, making September a great time to enjoy the rich culture and vibrant atmosphere of this historic city.
In September, Thessaloniki experiences a delightful transition as summer fades into autumn. The temperatures range from a mild 8°C (46°F) at night to a warm 35°C (95°F) during the day, with an average of 22°C (72°F) that evokes a perfect blend of warmth and freshness. This gradual cooling from the peak summer heat, represented by August's highs of 40°C (105°F), makes September a particularly enjoyable time to explore the city's rich history and vibrant culture. As the month progresses, the once-scorching sun becomes more temperate, enticing visitors to take leisurely strolls through the city's picturesque streets while enjoying the lingering warmth of early autumn.
In September, Thessaloniki experiences a noticeable decline in precipitation, with only 27 mm (1.1 in) of rain recorded over just 5 days. This marks a significant reduction compared to the wetter summer months, where June peaked with 100 mm (3.9 in) over 13 days. As the city transitions into autumn, the overall trend highlights a gradual decrease in both rainfall and rainy days, setting the stage for drier months ahead. This lighter precipitation pattern allows residents and visitors to enjoy the last vestiges of warm weather before the more robust rains arrive in October.
As summer fades into autumn, September in Thessaloniki experiences a modest uptick in humidity, averaging 57%. This slight increase from the dry August, which saw a low of 47%, signals the transition towards the wetter months ahead. The decline in humidity from a winter peak of 88% in January steadily decreases until a summer low of 60% in July, showcasing the region’s seasonal climate shifts. As we move into October, humidity rises again to 76%, suggesting that the crisp air of autumn is accompanied by increasing moisture, setting the stage for the more humid fall and winter months. This ebb and flow of humidity not only enhances the city’s coastal charm but also paints a vivid picture of Thessaloniki’s changing seasons.
As summer transitions to autumn, Thessaloniki experiences a notable shift in its UV Index. In September, the UV Index drops to 7, reflecting a high exposure category with a burn time of 25 minutes—a change from the intense levels typical during the summer months. While the peak UV Index of 10 in June signifies very high risk, September brings a more moderate yet still cautionary level of solar radiation. This trend of decreasing UV levels continues into October, making this an ideal time to enjoy the city's outdoor beauty while still remaining mindful of sun protection. For more detailed insights, explore the Thessaloniki UV Index.
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As summer gently fades into autumn, September in Thessaloniki continues to embrace the warmth of the sun, boasting an impressive 346 hours of sunshine. This month reflects a gradual shift from the peak brightness of July, which shines with 424 hours, to the more mellow rays of October’s 292 hours. As the city transitions through September, locals and tourists alike can bask in the tail end of summer, enjoying outdoor cafes and vibrant street life under a golden sky. The sunshine not only enhances the beauty of the coastal city but also invites everyone to savor the last tastes of summer before the cooler months settle in.
As summer transitions into autumn, September in Thessaloniki showcases a moderate chance of sunny weather with a 53% likelihood of sunshine. This marks a notable drop from the peak brightness of July and August, where the sunshine probability soars to 79% and 80%, respectively. While September retains a fair amount of warmth and pleasant days, you'll find it less predictable than the height of summer. However, with more than half of the month still offering potential for clear skies, it remains an appealing time to explore this vibrant city, enjoying the lingering summer ambiance before the coolerOctober days arrive.
As summer fades, September in Thessaloniki witnesses a gentle transition in daylight duration, offering 12 hours of light each day. This marks a decline from the sun-drenched 15 hours experienced in June, gradually signaling the arrival of autumn. The shift is a reminder of nature's rhythms, where the days shorten, moving back to the 11 hours typical in October. The month captures a sweet spot—it's a time when warm evenings still embrace remnants of summer, while the anticipation of cooler days begins to emerge. This patterns reflects the city’s dynamic climate, blending the last vestiges of summer with the crispness of fall.
As September unfolds in Thessaloniki, Greece, the winds begin to whisper a gentle lull, averaging just 1.8 m/s (4 mph). This slight decrease in wind speed reflects a broader trend, with the summer months witnessing slightly breezier conditions that taper off as autumn approaches. From July's mild 2.1 m/s to August's average of 1.9 m/s, the winds have settled, creating a serene atmosphere perfect for leisurely strolls along the waterfront. As the city transitions into October, maintaining the same gentle breeze, Thessaloniki invites both locals and visitors to savor the calm, breezy days ahead, embodying the essence of early autumn charm.
The weather in Thessaloniki changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Thessaloniki and find detailed weather information for every month.
September and January exhibit stark contrasts in weather patterns. In September, temperatures range from a mild 22°C (72°F) on average, peaking at a warm 35°C (95°F), while January brings a significant chill, with average temperatures dropping to just 4°C (39°F) and reaching lows of -10°C (14°F). Precipitation is notably lower in September at 27 mm (1.1 in) over 5 days, compared to January's wetter conditions with 58 mm (2.3 in) falling on 8 days. Additionally, humidity levels are considerably higher in January at 88%, while September enjoys a more comfortable 57%. For detailed insights into the January climate, check out Thessaloniki weather in January.
When comparing the weather in September and February, it's clear that each month offers a distinct climate profile. September boasts milder nights with a minimum temperature of 8°C (46°F) and can reach up to a scorching 35°C (95°F) during the day, all while maintaining an average temperature of 22°C (72°F). The month sees relatively low precipitation of 27 mm (1.1 in) over just 5 days, alongside a comfortable humidity level of 57%.
In contrast, February experiences much cooler temperatures, with a minimum dipping to -5°C (23°F) and a maximum of 20°C (68°F). The average temperature is a chilly 7°C (46°F). Precipitation is more frequent during this month, totaling 46 mm (1.8 in) over 8 days, and humidity peaks at 83%, creating a damp and brisk atmosphere. For more detailed information, you can check Thessaloniki weather in February.
September and March showcase contrasting weather patterns. In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 35°C (95°F), with a comfortable average of 22°C (72°F) and relatively low precipitation of 27 mm (1.1 in) over just 5 days. The humidity sits at 57%, offering a warm and pleasant atmosphere. Conversely, March experiences much cooler conditions, with minimum temperatures plummeting to -3°C (27°F) and an average of only 10°C (50°F), while reaching a maximum of 25°C (77°F). Additionally, March is wetter, with 84 mm (3.3 in) of precipitation over 12 days and higher humidity at 81%. For more details on the specifics of March weather, visit Thessaloniki weather in March.
When comparing the weather in September and April, notable differences emerge. September typically features warmer temperatures with a minimum of 8°C (46°F) and an average of 22°C (72°F), peaking at 35°C (95°F). In contrast, April experiences cooler conditions, with a minimum of 1°C (34°F) and an average of 14°C (57°F), reaching a maximum of 29°C (85°F). Additionally, September has lower precipitation levels at 27 mm (1.1 in) across about 5 days, while April sees more rainfall at 57 mm (2.2 in) over approximately 9 days, contributing to higher humidity levels of 71%. For more detailed insights into spring weather, you can explore Thessaloniki weather in April.
September and May display distinct weather patterns, with September generally being warmer. In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 35°C (95°F), providing an average of 22°C (72°F). The month sees relatively low precipitation, with just 27 mm (1.1 in) over 5 days, and humidity levels at 57%. In contrast, May features slightly cooler temperatures, with a minimum of 8°C (47°F) and a maximum of 33°C (91°F), resulting in an average temperature of 19°C (67°F). However, May experiences higher rainfall, totaling 77 mm (3.0 in) across 10 days, along with increased humidity at 74%. For a closer look at May's climate specifics, check out Thessaloniki weather in May.
When comparing the weather in September and June, we find notable differences in temperature and precipitation. September offers a milder temperature range, with a minimum of 8°C (46°F), an average of 22°C (72°F), and a maximum of 35°C (95°F), alongside relatively low precipitation of just 27 mm (1.1 in) over 5 days. In contrast, June tends to be warmer, featuring a minimum of 12°C (54°F), an average of 23°C (74°F), and a higher maximum of 38°C (101°F). Additionally, June experiences significantly more rainfall, totaling 100 mm (3.9 in) over 13 days, and slightly higher humidity levels at 63%. For more detailed information, you can check Thessaloniki weather in June.
When comparing the weather in September to July, we observe notable differences. September tends to have a wider temperature range, with minimums dropping to 8°C (46°F) and maximums reaching up to 35°C (95°F), leading to a pleasant average of 22°C (72°F). In contrast, July is generally warmer, with a minimum temperature of 16°C (61°F) and a maximum soaring to 39°C (102°F), resulting in a higher average of 26°C (79°F). While September has less precipitation at 27 mm (1.1 in) over 5 days, July experiences more rain, totaling 52 mm (2.1 in) across 7 days. Both months have similar humidity levels, with September at 57% and July at 60%. For more details on how July weather specifically impacts activities in the region, you can check Thessaloniki weather in July.
In comparing the weather of September to August, we see a notable shift in temperature and precipitation patterns. September experiences a cooler range, with minimum temperatures dropping to 8°C (46°F) and maximums reaching 35°C (95°F), leading to a comfortable average of 22°C (72°F). In contrast, August remains warmer, with a minimum of 15°C (60°F), an average of 26°C (80°F), and maximum temperatures soaring up to 40°C (105°F). Additionally, September sees less precipitation at 27 mm (1.1 in) over 5 days, compared to August's 50 mm (2.0 in) over the same number of days. Humidity levels are also higher in September at 57%, compared to the 47% experienced in August, contributing to a different feel in the air. For more detailed insights into the August climate, check out Thessaloniki weather in August.
When comparing the weather in September and October, it’s evident that October tends to be cooler and wetter. In September, temperatures range from a minimum of 8°C (46°F) to a maximum of 35°C (95°F), with an average temperature of 22°C (72°F). The month receives only 27 mm (1.1 in) of precipitation over 5 days, coupled with a humidity level of 57%. In contrast, October experiences a more significant drop in temperatures, with a minimum of 4°C (40°F), an average of 16°C (61°F), and a maximum of 29°C (85°F). This month also sees an increase in precipitation, totaling 62 mm (2.5 in) over 6 days, while humidity rises to 76%. For more detailed insights, check out Thessaloniki weather in October.
In September, the weather is warm and relatively dry, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 35°C (95°F) and an average of 22°C (72°F). With only 27 mm (1.1 in) of precipitation over 5 days and humidity at 57%, September feels quite pleasant. In contrast, November brings cooler temperatures, with a range from -2°C (28°F) to 24°C (76°F) and an average of 12°C (53°F). This month sees significantly more precipitation, totaling 80 mm (3.2 in) over 10 days, along with increased humidity at 85%. For more detailed information, you can check out Thessaloniki weather in November.
In September, the weather is typically warm, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 35°C (95°F) and an average of 22°C (72°F). The month experiences relatively low precipitation at 27 mm (1.1 in) over about five days, with a humidity level of 57%. In contrast, December brings a much cooler climate, with temperatures dropping to a minimum of -6°C (22°F) and averaging only 7°C (45°F), while the maximum temperature reaches 18°C (65°F). Precipitation increases significantly in December, totaling 83 mm (3.3 in) over nine days, and the humidity rises to a higher level of 87%. For more detailed information, you can check Thessaloniki weather in December.
As summer fades, September in Thessaloniki brings a delightful transition in weather, offering a pleasant mix of warm days and cooler nights. With average temperatures comfortably hovering around 22°C (72°F), it's the perfect time for outdoor adventures without the intense heat of July and August. Humidity remains moderate, creating a refreshing atmosphere despite occasional rain showers that typically occur over just a few days. This month sets the stage for a vibrant blend of early autumn charm and lingering summer vibes, making it an ideal time to explore the enchanting streets of Thessaloniki. For a deeper dive into the city's climatic patterns, check out Thessaloniki Climate.