Last updated: August 21, 2025
May in Thessaloniki, Greece offers a delightful mix of temperatures and weather patterns, making it an enticing month for visitors. With a maximum temperature of 33°C (91°F) and an average of 19°C (67°F), days transition from warm to comfortably cool, while nights can dip to a minimum of 8°C (47°F). Despite enjoying ample sunshine, the city sees about 77 mm (3.0 in) of precipitation over 10 days, contributing to a noticeable humidity level of 74%. This combination of warmth and occasional rain creates a vibrant atmosphere, perfect for exploring Thessaloniki’s rich history and culture.
May in Thessaloniki marks a delightful transition into warmer weather, with temperatures starting to reflect the approaching summer. The minimum temperature rises to a comfortable 8°C (47°F), while the average climbs to a pleasant 19°C (67°F), hinting at the season’s burgeoning warmth. As the days progress, highs can soar to a maximum of 33°C (91°F), making it one of the warmest months in the city. This increase signifies a significant leap from the previous months, where April’s averages barely touched 14°C (57°F). The notable shift not only encourages outdoor activities and leisurely strolls along the waterfront but also sets the stage for Thessaloniki’s vibrant nightlife to awaken, as locals and tourists alike bask in the region’s sun-kissed charm.
In May, Thessaloniki experiences a significant uptick in precipitation, with 77 mm (or 3.0 inches) of rain falling over approximately 10 days. This pattern marks a transition from the milder springs, as April brings in a lighter 57 mm of rain across 9 days. The increase in rainfall is a precursor to the wetter summer months, notably June, which witnesses the highest precipitation of the year at 100 mm. Interestingly, while May's rainfall is substantial, it doesn't overshadow previous months in volume, suggesting a seasonal build-up that culminates in the summer deluge. This consistent wetting not only supports the lush greenery of the region but also enhances the overall vibrancy of Thessaloniki as it moves into the warmer season.
In May, Thessaloniki experiences a noticeable drop in humidity, averaging around 74%, a slight increase from the preceding months of April. This transition marks the onset of a warmer season, as the city gradually shifts from the damp chill of winter. Compared to earlier in the year, there's a distinct trend of decreasing humidity leading into summer, with levels tumbling down to 63% by June. While May remains relatively humid, it serves as a bridge between the wetter months and the drier, more comfortable summer days ahead. As the city basks in the vibrant blooms of spring, the air begins to feel more refreshing, hinting at the delightful summer that awaits.
As May rolls into Thessaloniki, Greece, the sun becomes increasingly fierce, with the UV Index soaring to a significant 9, indicating a very high exposure category. This spike in UV levels results in a dramatically reduced burn time of just 15 minutes, making sun protection paramount for outdoor activities. Compared to earlier months, where the UV Index ranged from 3 to 7, May signifies a transition into the peak of summer sun intensity. As the season progresses into June and July, the UV Index remains consistently high, underscoring the importance of remaining vigilant about sun safety. For those planning to bask in the gorgeous Mediterranean sun, it's essential to stay informed—check the Thessaloniki UV Index for daily updates on sun exposure.
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May in Thessaloniki shines brightly with an impressive 396 hours of sunshine, marking the peak of spring's radiant beauty. As the city awakens from the cooler months, sunlight pours in more generously, with an increase in hours from 336 in April. This month continues a trend of escalating brightness that starts in January's 188 hours and climbs steadily as winter fades. The sunny days of May not only enhance the warmth but also invite locals and visitors alike to enjoy the vibrant outdoor scene, setting the stage for summer’s approach with even longer sunshine hours, reaching a high of 424 in July. Enjoying May's sun in Thessaloniki is truly a delightful experience on the cusp of the sizzling season!
As spring unfolds in Thessaloniki, May arrives with a promising 58% chance of sunny weather, signaling a shift toward brighter days. This marks an increase from the consistency of 51% in the preceding months of April and March, highlighting a gradual transition into the warmer months. As the sun's presence becomes more assured, the likelihood only continues to climb, reaching 66% in June and soaring to 79% in July. The trend showcases the city’s delightful progression from the cooler early months of the year, where sunshine is less frequent, into a sun-drenched summer, making May a delightful prelude to the vibrant summer days ahead.
As spring transitions into summer, Thessaloniki, Greece, experiences a delightful increase in daylight hours. In May, the city basks in approximately 14 hours of sunshine, marking a significant jump from April's 13 hours. This trend of extending daylight continues into the early summer, peaking in June with 15 hours of daylight, before gradually tapering off through the late summer months. While January and February see a mere 9 to 10 hours, the progression to May showcases the vibrant energy of the season, inviting residents and visitors alike to embrace the longer days, outdoor activities, and a general sense of renewal. As the year unfolds, Thessaloniki’s daylight duration paints a beautiful picture of the shifting seasons, making each month more luminous than the last.
In May, Thessaloniki experiences a gentle embrace of moderate winds, with an average speed of 2.3 m/s (5 mph), maintaining the same breeze that flows in from the previous month. This slight uptick is part of a consistent trend throughout the spring months, where the winds remain generally mild and consistent. As the city transitions into summer, wind speeds typically begin to decline in June, hinting at the tranquil, warm days ahead. Despite these variations, May’s winds are ideal for enjoying leisurely strolls along the waterfront, offering a refreshing respite from the blossoming heat of early summer.
Weather in Thessaloniki varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Thessaloniki, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present stark contrasts in weather conditions. In May, temperatures range from a mild 8°C (47°F) at night to a warm 33°C (91°F) during the day, with an average of 19°C (67°F). The month sees about 77 mm (3.0 in) of precipitation spread over 10 days, and the humidity sits at a comfortable 74%. In contrast, January experiences much cooler temperatures, with lows plunging to -10°C (14°F) and daytime highs reaching only 18°C (65°F), averaging around 4°C (39°F). The month has slightly less precipitation at 58 mm (2.3 in) over 8 days, but the humidity is higher at 88%, making the air feel even cooler. For more details on the January climate, you can check Thessaloniki weather in January.
When comparing the weather in May and February, it is clear that May offers a much warmer climate, with temperatures ranging from a minimum of 8°C (47°F) to a maximum of 33°C (91°F), averaging around 19°C (67°F). In contrast, February experiences much cooler temperatures, with a low of -5°C (23°F) and a high of 20°C (68°F), averaging just 7°C (46°F). Additionally, May sees higher precipitation levels at 77 mm (3.0 in) over approximately 10 days, while February has only 46 mm (1.8 in) spread across about 8 days. Despite May's lower humidity of 74%, it is still noticeable compared to February's higher humidity level of 83%. For more detailed information on February weather, you can visit Thessaloniki weather in February.
May and March present distinctly different weather patterns. In May, temperatures range from a minimum of 8°C (47°F) to a maximum of 33°C (91°F), with an average of 19°C (67°F), making it a warmer month overall. Conversely, March experiences cooler temperatures, with a minimum of -3°C (27°F), an average of 10°C (50°F), and a maximum of 25°C (77°F). Although May has slightly less precipitation at 77 mm (3.0 in) over 10 days, it is relatively humid at 74%. In comparison, March sees a bit more rainfall at 84 mm (3.3 in) across 12 days, coupled with higher humidity at 81%. For a more in-depth look at March weather, you can explore Thessaloniki weather in March.
In comparing the weather between April and May, May tends to be warmer with average temperatures ranging from a low of 8°C (47°F) to a high of 33°C (91°F), while April sees cooler conditions with temperatures spanning from 1°C (34°F) to 29°C (85°F). Additionally, May experiences a slight increase in precipitation, totaling 77 mm (3.0 in) over approximately 10 days, compared to April's 57 mm (2.2 in) over 9 days. Humidity is also marginally higher in May at 74%, compared to 71% in April, contributing to the more tropical feel. For a detailed look at April's climate, check out Thessaloniki weather in April.
When comparing the weather in May and June, one can observe a noticeable increase in temperatures. May sees minimum temperatures around 8°C (47°F) and averages around 19°C (67°F), peaking at a maximum of 33°C (91°F). In contrast, June typically experiences a milder minimum of 12°C (54°F) and an average of 23°C (74°F), with highs reaching up to 38°C (101°F). Additionally, June tends to be wetter, with 100 mm (3.9 in) of precipitation over 13 days, compared to May's 77 mm (3.0 in) over 10 days. Interestingly, June exhibits lower humidity levels at 63%, making the warmer temperatures feel more comfortable. For more detailed insight on the weather, you can check Thessaloniki weather in June.
In May, temperatures in Thessaloniki range from a minimum of 8°C (47°F) to a maximum of 33°C (91°F), with an average of 19°C (67°F). The month experiences around 77 mm (3.0 in) of precipitation over 10 days, with humidity levels at a relatively high 74%. In contrast, July brings warmer weather, with temperatures ranging from a minimum of 16°C (61°F) to a scorching maximum of 39°C (102°F) and an average of 26°C (79°F). Rainfall decreases to 52 mm (2.1 in) across just 7 days, and the humidity drops to a more comfortable 60%. For more detailed information, you can visit Thessaloniki weather in July.
May and August present distinct weather characteristics in terms of temperature, precipitation, and humidity. In May, temperatures range from a cool 8°C (47°F) at night to a warm average of 19°C (67°F), with highs reaching up to 33°C (91°F). The month sees an average of 77 mm (3.0 in) of precipitation over about 10 days, accompanied by relatively high humidity at 74%. In contrast, August offers much warmer conditions, with nighttime lows of 15°C (60°F), an average temperature of 26°C (80°F), and peak temperatures soaring up to 40°C (105°F). Precipitation decreases significantly to 50 mm (2.0 in) over just 5 days, and the humidity drops to a more comfortable 47%. For more detailed insights, check out Thessaloniki weather in August.
May and September present distinct weather characteristics in the region. May typically sees temperatures ranging from a mild 8°C (47°F) to a warm 33°C (91°F), with an average of 19°C (67°F). It also experiences about 77 mm (3.0 in) of precipitation over approximately 10 days, coupled with a humidity level of 74%. In contrast, September boasts slightly warmer averages, with temperatures from 8°C (46°F) to a peak of 35°C (95°F) and an average of 22°C (72°F). Notably, precipitation drops significantly to just 27 mm (1.1 in) over about 5 days, and humidity levels decrease to 57%, making September generally drier and more comfortable. For more specific insights on the climate during September, check out Thessaloniki weather in September.
May and October exhibit distinct differences in weather patterns. In May, temperatures range from a minimum of 8°C (47°F) to a maximum of 33°C (91°F), with an average of 19°C (67°F). The month experiences 77 mm (3.0 in) of precipitation over approximately 10 days, and humidity levels sit around 74%. In contrast, October sees cooler 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 receives less precipitation, totaling 62 mm (2.5 in) over about 6 days, while humidity remains slightly higher at 76%. For more details on October weather, check out Thessaloniki weather in October.
May and November offer distinctly different weather experiences. In May, temperatures range from a mild 8°C (47°F) at night to a warm 33°C (91°F) during the day, with an average of 19°C (67°F). This month sees about 77 mm (3.0 in) of precipitation over 10 days, with humidity levels around 74%. In contrast, November brings cooler temperatures, with lows dropping to -2°C (28°F) and daytime highs reaching 24°C (76°F), averaging 12°C (53°F). Precipitation slightly increases to 80 mm (3.2 in), also over 10 days, with humidity rising to 85%. For more details on the weather in November, you can check Thessaloniki weather in November.
May and December present strikingly different weather patterns. In May, temperatures range from a mild 8°C (47°F) at night to a warm 33°C (91°F) during the day, with an average of 19°C (67°F). This month sees about 77 mm (3.0 in) of precipitation over approximately 10 days, accompanied by a humidity level of 74%. In contrast, December brings much cooler temperatures, with nighttime lows dropping to -6°C (22°F) and daytime highs reaching only 18°C (65°F). The average temperature in December is notably lower at 7°C (45°F). Precipitation increases slightly to 83 mm (3.3 in), occurring over 9 days, and humidity remains high at 87%. For more detailed information about winter conditions, you can visit Thessaloniki weather in December.
In May, Thessaloniki experiences a delightful transition into warmer weather, with temperatures that begin to rise, marking a shift from the cool spring months. While the average temperature settles comfortably around 19°C, the warmer days can see highs reaching up to 33°C, offering plenty of opportunities for outdoor exploration. Unlike the wetter months that precede it, May brings a noticeable decline in rainfall, featuring only about 10 days of precipitation and a total of 77 mm of rain, allowing for more sunny and enjoyable days. With a humidity level of 74%, the city tends to feel pleasantly warm, making it perfect for enjoying the vibrant streets and coastal views. For a more detailed understanding of what to expect throughout the year, check out Thessaloniki Climate.