May Weather in Thessaloniki, Greece

Last updated: February 6, 2025

May in Thessaloniki ushers in a delightful transition into warmer weather, with maximum temperatures reaching 33°C (91°F) and an average of 19°C (67°F). While the days can be quite warm, the evenings offer a refreshing respite, with minimum temperatures dropping to 8°C (47°F). This month experiences 77 mm (3.0 in) of precipitation spread over 10 days, resulting in a relatively humid atmosphere at 74%. Travelers can enjoy vibrant city life bathed in sunshine, while occasional rain showers contribute to the lush greenery of the surroundings.

May Temperature in Thessaloniki

As May unfolds in Thessaloniki, Greece, the city beams with warmth, showcasing a delightful transition into summer. Minimum temperatures rise to a comfortable 8°C (47°F), while average highs soar to an inviting 33°C (91°F), setting the stage for sun-kissed strolls along the waterfront. The average temperature reaches a pleasant 19°C (67°F), inviting locals and tourists alike to bask in the vibrant atmosphere. The gradual climb from the cooler spring months, notably from April’s max of 29°C (85°F), signals the arrival of balmy days filled with abundant sunshine and lively cultural events. With this warming trend, May in Thessaloniki is not just a month; it's an invitation to embrace the vibrancy of life in this enchanting city.

May Weather in Thessaloniki: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Thessaloniki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394550576774797972615345
Data source: Temperature data for Thessaloniki generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Thessaloniki

In May, Thessaloniki experiences a notable uptick in rainfall, with 77 mm (3.0 in) of precipitation over approximately 10 days. This increase marks a transition from the relatively drier April, which saw 57 mm (2.2 in) of rain. As spring reaches its peak, May’s rain contributes to the lush greenery and blooming landscapes, while the average number of precipitation days hints at a balanced weather pattern that prepares the city for the hotter summer months ahead. Interestingly, this trend continues into June, which typically sees even higher rainfall, indicating a shift in climatic conditions as the region braces for the approaching heatwave. Thus, May serves as both a refreshing bridge and a precursor to what lies ahead in the Mediterranean climate of Thessaloniki.

May Precipitation Trends in Thessaloniki

The chart displays monthly precipitation patterns in Thessaloniki, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec5846845777100535027628183
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Thessaloniki

May in Thessaloniki sees a moderate humidity level of 74%, transitioning from the higher levels of spring. As the city warms up in April, where humidity rests at 71%, May marks a gradual increase before the summer months settle in. Comparatively, the humidity drops significantly in June and July, reflecting the hot and drier conditions typical of summer. This pattern highlights a consistent trend: while the early months of the year bring much higher humidity, the late spring signals a shift towards more comfortable levels, paving the way for the dry heat of summer, where humidity can fall to as low as 60% in July. Thus, May serves as a bridge between the dampness of spring and the aridity of summer in Thessaloniki.

May Average Humidity in Thessaloniki

This chart illustrates the average monthly humidity levels in Thessaloniki, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec88%83%81%71%74%63%60%47%57%76%85%87%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Thessaloniki

As May arrives in Thessaloniki, Greece, the sun takes center stage, elevating the UV Index to a striking 9, categorized as very high. This marks a significant jump from the previous months, where the burn time decreased to just 15 minutes—a clear indication that protection from UV rays is essential during this period. With the season shifting towards summer, residents and visitors alike should be mindful of the increasing sun exposure, as the UV Index continues to hover around similar heights in June and July. It's crucial to stay informed and take necessary precautions to enjoy the beautiful weather safely. For more insights, check out the detailed Thessaloniki UV Index.

Maximum UV Index Levels in Thessaloniki for May

The chart shows the monthly maximum UV Index (UVI) for Thessaloniki in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec3467910997642
Data source: Thessaloniki May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Thessaloniki

May in Thessaloniki, Greece, ushers in a delightful increase in sunshine, with 396 hours of brilliant sunlight lighting up the city. This is a significant leap from the previous months, as the days grow longer and warmer, paving the way for outdoor activities and vibrant city life. The trend continues upward towards the summer, where June and July boast even more sun—a testament to the Mediterranean climate's allure. Each month builds on the last, creating a tapestry of sunny days that fills Thessaloniki with energy and warmth. As May blossoms, the extended daylight hints at the vibrant summer ahead, inviting both locals and visitors to soak in the sun-soaked charm of this beautiful Greek city.

Monthly Sunshine Duration in Thessaloniki: May Highlighted

The May sunshine duration represents the total number of hours Thessaloniki experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec188h230h301h336h396h402h424h395h346h292h227h222h
Data source: Thessaloniki May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Thessaloniki During May

In May, Thessaloniki begins to embrace the warmth of spring, with a 58% chance of sunny weather—a noticeable increase from the 51% likelihood recorded in the preceding months. This upward trend continues as the city transitions into summer, where sunshine becomes more prominent. The gradual shift from a moderate chance of sun in early spring to a more favorable forecast in May signals that outdoor activities and leisurely strolls along the waterfront become increasingly appealing. As the days lengthen and temperatures rise, residents and visitors alike can look forward to more bright and sunny experiences in this vibrant Greek city.

Percentage of Sunny Days in May in Thessaloniki

The chart illustrates the percentage of sunny days in Thessaloniki throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Thessaloniki experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec40%51%51%51%58%66%79%80%53%43%31%49%
Data source: Thessaloniki May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Thessaloniki in May

As spring unfolds into summer, Thessaloniki experiences a remarkable increase in daylight duration, with May shining brightly at 14 hours of daylight. This growth from 13 hours in April signifies the city's transition into the sun-kissed days of summer, setting the stage for longer evenings and vibrant outdoor activities. The daylight hours continue to peak in June at 15 hours before gently tapering off in the subsequent months. This gradual shift reveals a rhythm of nature that invites both locals and visitors to embrace the warmth and energy of the Greek sun, culminating in a palpable sense of renewal each spring.

Average Daylight Hours in Thessaloniki for May

The chart illustrates the variation in daylight duration in Thessaloniki throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 36m10h 38m11h 57m13h 18m14h 27m15h 2m14h 44m13h 43m12h 25m11h 4m9h 53m9h 17m
Data source: Thessaloniki daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Thessaloniki

In Thessaloniki, Greece, the wind patterns in May exhibit a pleasant consistency, with an average speed of 2.3 m/s (5 mph), mirroring the windiness of both March and April. This mild breeze signals the arrival of spring in earnest, contrasting with the lighter gusts observed in the summer months, particularly in August when the average dips to 1.9 m/s (4 mph). The overall trend suggests a gentle transition from the cooler, windier months of winter into a more stable, calm summer, making May an ideal time for outdoor activities or leisurely strolls along the city's waterfront. As the year progresses, the wind gradually diminishes, with November's average slipping to 1.7 m/s (4 mph), indicating a shift towards more tranquil conditions.

Average May Wind Speed in Thessaloniki

The chart displays monthly wind speed patterns in Thessaloniki, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.02.32.02.3 m/s2.02.11.91.81.81.72.4
Data source: Thessaloniki May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Thessaloniki Compares to Other Months

The weather in Thessaloniki changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May'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.

In May, the weather in Thessaloniki is generally much warmer, with average temperatures reaching 19°C (67°F) and highs soaring up to 33°C (91°F). The month sees moderate precipitation of 77 mm (3.0 in) over about 10 days, accompanied by a humidity level of 74%. In stark contrast, January experiences much colder temperatures, with a minimum of -10°C (14°F) and an average of only 4°C (39°F). Precipitation is slightly less at 58 mm (2.3 in) across 8 days, but the humidity is notably higher at 88%. This highlights the significant seasonal shift, making May a much more pleasant time for outdoor activities compared to the chill of January. For more details, you can check Thessaloniki weather in January.

May and February present stark contrasts in weather conditions. In May, temperatures range from a minimum of 8°C (47°F) to a pleasant average of 19°C (67°F), peaking at a warm 33°C (91°F). The month experiences around 77 mm (3.0 in) of precipitation over 10 days, with humidity averaging 74%. In contrast, February sees much cooler weather, with temperatures dropping as low as -5°C (23°F) and averaging only 7°C (46°F), while reaching a maximum of 20°C (68°F). Precipitation is lighter at 46 mm (1.8 in) over 8 days, and the humidity is slightly higher at 83%. For more detailed insights on February weather, you can visit Thessaloniki weather in February.

In comparing the weather between March and May, May generally offers significantly warmer temperatures, with averages around 19°C (67°F) and a high of 33°C (91°F), contrasted with March's cooler average of 10°C (50°F) and a maximum of 25°C (77°F). While May experiences slightly less precipitation at 77 mm (3.0 in) over 10 days, March records 84 mm (3.3 in) over a slightly longer span of 12 days. Moreover, humidity levels are relatively high in both months, but March's humidity at 81% is marginally higher than May's 74%. For more detailed insights on March weather, visit Thessaloniki weather in March.

In comparing the weather between April and May, we see a notable increase in temperatures as spring transitions into early summer. While April experiences a minimum temperature of 1°C (34°F) and an average of 14°C (57°F), May boasts a significantly higher minimum of 8°C (47°F) and an average of 19°C (67°F). The maximum temperatures also rise, with April reaching 29°C (85°F) compared to May's peak at 33°C (91°F). Additionally, May sees slightly more precipitation, measuring 77 mm (3.0 in) over 10 days versus April's 57 mm (2.2 in) across 9 days. Humidity levels are relatively similar, with May at 74% and April at 71%. For more detailed information about April weather, check out Thessaloniki weather in April.

May and June present distinct shifts 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 temperature of 19°C (67°F). The month experiences about 77 mm (3.0 in) of precipitation over approximately 10 days, contributing to a higher humidity level of 74%. In contrast, June sees warmer conditions with a minimum temperature of 12°C (54°F) and a maximum of 38°C (101°F), averaging 23°C (74°F). Additionally, precipitation increases to 100 mm (3.9 in) across 13 days, but humidity drops to 63%. For a detailed look at summer weather patterns, check out Thessaloniki weather in June.

The weather in May is characterized by a wider temperature range, with minimums around 8°C (47°F) and maximums reaching up to 33°C (91°F), resulting in an average temperature of 19°C (67°F). This month also sees higher humidity levels at 74% and more frequent rainfall, totaling around 77 mm (3.0 in) across about 10 days. In contrast, July is notably warmer, with minimum temperatures starting at 16°C (61°F) and maximums soaring to 39°C (102°F), yielding an average of 26°C (79°F). There is significantly less precipitation, only 52 mm (2.1 in) over about 7 days, and lower humidity at 60%. For more details on July weather, visit Thessaloniki weather in July.

Comparing the weather in May and August reveals notable differences in temperature and humidity. May tends to have cooler temperatures, with minimums of 8°C (47°F) and averages around 19°C (67°F), while August experiences warmer weather, featuring minimums of 15°C (60°F) and averages of 26°C (80°F). The maximum temperatures in August can reach a sweltering 40°C (105°F), significantly higher than May's maximum of 33°C (91°F). In terms of precipitation, May is rainier with 77 mm (3.0 in) falling over about 10 days, whereas August sees less rainfall at 50 mm (2.0 in) across just 5 days. Additionally, the humidity levels in May are higher at 74%, compared to August's relatively comfortable 47%. For more details, you can check Thessaloniki weather in August.

May and September present contrasting weather patterns, offering distinct experiences for those enjoying the outdoors. May typically features temperatures ranging from a cool 8°C (47°F) at night to a warm maximum of 33°C (91°F) during the day, accompanied by higher humidity levels at 74% and regular precipitation over about 10 days, totaling 77 mm (3.0 in). In contrast, September enjoys a more stable and pleasant warmth, with minimum temperatures around 8°C (46°F) and daily averages peaking at 35°C (95°F). It experiences significantly less rainfall, with only 27 mm (1.1 in) across just 5 days and lower humidity at 57%. For those intrigued by September's favorable conditions, further details can be explored Thessaloniki weather in September.

In May, temperatures range from a minimum of 8°C (47°F) to a maximum of 33°C (91°F), averaging around 19°C (67°F), making it a warm and pleasant month. This month experiences about 77 mm (3.0 in) of precipitation over approximately 10 days, with a humidity level of 74%. In contrast, October sees cooler temperatures, with a minimum of 4°C (40°F) and a maximum of 29°C (85°F), averaging 16°C (61°F). Precipitation in October totals around 62 mm (2.5 in) over about 6 days, accompanied by a slightly higher humidity of 76%. For more detailed information, check out Thessaloniki weather in October.

May and November present contrasting weather patterns. In May, temperatures fluctuate between a minimum of 8°C (47°F) and a maximum of 33°C (91°F), with an average temperature of 19°C (67°F). This month experiences 77 mm (3.0 in) of precipitation over 10 days and a humidity level of 74%. In contrast, November brings colder conditions, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 24°C (76°F), and an average of 12°C (53°F). It experiences slightly higher precipitation at 80 mm (3.2 in) over the same 10 days, along with increased humidity at 85%. For more details, you can check Thessaloniki weather in November.

May and December present contrasting weather conditions. In May, temperatures can 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 experiences about 77 mm (3.0 in) of precipitation over roughly 10 days, with humidity levels at 74%. In stark contrast, December sees much colder weather, with temperatures dropping as low as -6°C (22°F) and peaking at 18°C (65°F), averaging around 7°C (45°F). The month tends to be wetter, accumulating approximately 83 mm (3.3 in) of rainfall over 9 days, accompanied by higher humidity at 87%. For a closer look at December's weather patterns, you can check out Thessaloniki weather in December.

Compare Thessaloniki's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Thessaloniki

As May unfolds in Thessaloniki, the city experiences a delightful transition into warmer weather, distinguishing itself from the cooler months that precede it. With maximum temperatures reaching an inviting 33°C (91°F) and an average of 19°C (67°F), May marks the beginning of a pleasant Mediterranean climate, providing an excellent backdrop for outdoor activities. However, the month does see some rain, with about 77 mm (3.0 in) spread over 10 days, reminding visitors to be prepared. The humidity level settles around 74%, adding a touch of warmth without the heaviness of summer. This unique blend of mild warmth and occasional showers makes May an appealing time to explore Thessaloniki's rich history and beautiful coastlines. For more detailed information on weather patterns throughout the year, check out the Thessaloniki Climate.