May Weather in Constanta, Romania

Last updated: August 27, 2025

Experience the vibrant May weather in Constanta, Romania, where temperatures gracefully reach a maximum of 25°C (77°F) and settle at a comfortable average of 16°C (61°F). As spring fully unfolds, the daily temperatures can dip to a refreshing minimum of 9°C (49°F), offering a pleasant variety. With 30 mm (1.2 in) of rainfall across about 7 days, May brings occasional showers that nourish the landscape, contributing to a somewhat humid atmosphere with humidity levels hovering around 73%. Enjoy the blossoming beauty of Constanta as it embraces the warm and mild charm of late spring!

May Temperature in Constanta

May in Constanta, Romania, marks a delightful transition into warmer weather, with temperatures that invite outdoor exploration. The month begins with a minimum of 9°C (49°F) and climbs to a comfortable 25°C (77°F) at its peak, showcasing an average temperature of 16°C (61°F). This increase reflects a clear trend of spring blossoming into early summer, as the city sheds its winter chill. As you stroll along the coastal promenades or enjoy the blooming parks, the milder climate makes it an ideal time for both locals and tourists to soak in the vibrant atmosphere of Constanta. The pleasant warmth of May serves as a precursor to the hot summer months ahead, providing a refreshing respite that energizes the spirit.

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

The chart illustrates May temperature patterns in Constanta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Constanta, May typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec384043506171757669605144
Data source: Temperature data for Constanta generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Constanta

In May, Constanta experiences a moderate level of precipitation, with 30 mm (1.2 in) recorded over 7 days. This marks a slight increase from the drier month of April, which saw only 28 mm (1.1 in) of rain, hinting at the onset of the wetter summer months ahead. While May's rainfall is relatively modest compared to the heavier downpours typical in June, it plays an essential role in nurturing the vibrant vegetation that characterizes the region. The consistency of approximately 7 rainy days mirrors the patterns seen earlier in the year, suggesting a steady transition as the coastal city approaches its warmest season.

May Precipitation Trends in Constanta

The chart displays monthly precipitation patterns in Constanta, 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. In Constanta, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec504244283067501121505468
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Constanta

As spring gives way to summer in Constanta, Romania, May brings a noticeable dip in humidity, settling at 73%. This marks a continuation of the downward trend from the wetter months of winter, where humidity levels hover around 87% in January and gradually decline to 76% in April. The transition to May not only enhances the comfort of outdoor activities but also sets the stage for an even drier June, with humidity reaching 68%. Overall, this gradual decrease signifies a shift towards more pleasant, balmy days as the coastal town embraces the warm embrace of summer.

May Average Humidity in Constanta

This chart illustrates the average monthly humidity levels in Constanta, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Constanta is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%83%80%76%73%68%65%53%61%77%85%86%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Constanta

As May arrives in Constanta, Romania, the UV Index climbs sharply to 8, marking a shift to a very high exposure category. With a burn time of just 15 minutes, it's crucial for sunseekers to be vigilant about protection against harmful UV rays. This trend of increasing UV levels continues into June and July, when the index peaks at 9, emphasizing the need for sunscreen and protective clothing during the summer months. Compared to the earlier months, where the UV Index was moderate, May serves as a reminder that as we approach the height of summer, UV safety becomes even more essential. For more detailed information on UV exposure, check out Constanta UV Index.

Maximum UV Index Levels in Constanta for May

The chart shows the monthly maximum UV Index (UVI) for Constanta 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. In May, the maximum UV index in Constanta typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Constanta 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 Constanta

As spring blossoms into summer, Constanta, Romania basks in an impressive 408 hours of sunshine during May, marking a delightful peak in the city's radiant weather. This month transitions seamlessly from the growing light of April, which offered 353 hours, showcasing a notable upward trend in daylight as the days grow longer and warmer. The sunshine not only elevates the mood but also lays the groundwork for the vibrant summer months ahead. In June, Constanta experiences even more sunlight, with an average of 417 hours, indicating a consistent rise in sunshine that continues into the height of summer. This progressive increase from the chilled days of winter reflects the city's charm, inviting locals and tourists alike to revel in the outdoors and soak up the energizing rays.

Monthly Sunshine Duration in Constanta: May Highlighted

The May sunshine duration represents the total number of hours Constanta 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.
JanFebMarAprMayJunJulAugSepOctNovDec158h229h301h353h408h417h434h407h343h292h214h194h
Data source: Constanta May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Constanta During May

As May arrives in Constanta, Romania, the likelihood of sunny weather increases, reaching 44%, making it one of the most promising months for sunshine. This uptick follows a gradual rise from the cooler months, where January starts at just 26% and reaches 42% by March. Interestingly, May's sun chances align with the warm transition into summer, paving the way for even sunnier months ahead. With a steady 44% chance continuing into June, May serves as a delightful bridge to the vibrant and sun-soaked days of July and August, when the probability peaks at 77% and 75%, respectively. Whether you're considering beach days or outdoor activities, May offers an inviting glimpse of the sunny season to come.

Percentage of Sunny Days in May in Constanta

The chart illustrates the percentage of sunny days in Constanta 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 Constanta experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec26%35%42%41%44%45%77%75%60%33%32%26%
Data source: Constanta May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Constanta in May

As spring unfolds in Constanta, Romania, May brings a delightful increase in daylight, with the city basking in approximately 14 hours of sunshine. This marks a significant transition from the shorter days of winter, where January offers just 9 hours of light. The trend continues upward through March (11 hours) and April (13 hours), showcasing a clear progression toward the longer days of summer. Following May, June and July peak with 15 hours of daylight, allowing residents and visitors alike to fully embrace the vibrant outdoor life. As the year unfolds, daylight gradually retreats, tapering down to 12 hours in September, and eventually returning to the more subdued hours of winter by December. This dynamic shift not only highlights the seasonal changes but also fosters an inviting atmosphere for exploration and enjoyment as spring blossoms into summer.

Average Daylight Hours in Constanta for May

The chart illustrates the variation in daylight duration in Constanta throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 16m10h 27m11h 56m13h 28m14h 47m15h 27m15h 6m13h 56m12h 28m10h 56m9h 36m8h 54m
Data source: Constanta daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Constanta

In May, the wind in Constanta, Romania begins to gently stir, with an average speed of 4.4 m/s (10 mph)—a slight uptick from the calmer breezes of April. This transitional month typically showcases a gradual increase in wind strength, setting the stage for the vibrant summer season ahead. Notably, May's wind is consistently mild, hovering around the speeds of the preceding months while remaining significantly lower than the winter gales. As we progress towards June and July, the winds remain stable, hinting at the warm, pleasant days that await by the seaside. May's breeziness invites both locals and visitors to embrace outdoor activities, making it a perfect time to enjoy the picturesque vistas of the coast.

Average May Wind Speed in Constanta

The chart displays monthly wind speed patterns in Constanta, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.35.15.54.24.4 m/s4.54.54.35.35.95.16.7
Data source: Constanta May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Constanta Compares to Other Months

Weather in Constanta varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Constanta, focusing on differences in temperature, rainfall, humidity, and UV levels.

May and January present strikingly different weather conditions. In May, temperatures range from a comfortable minimum of 9°C (49°F) to a pleasant maximum of 25°C (77°F), with an average of 16°C (61°F). Humidity is moderate at 73%, and precipitation is relatively light at 30 mm (1.2 in) over about 7 days. In contrast, January is marked by much colder temperatures, with a minimum of -10°C (14°F) and a maximum of only 14°C (57°F), averaging around 3°C (38°F). The humidity is higher at 87%, and it tends to be wetter, accumulating 50 mm (2.0 in) of precipitation over the same number of days. For more details about the conditions in January, you can visit Constanta weather in January.

When comparing the weather in May and February, clear distinctions emerge. May tends to be significantly warmer with temperatures ranging from a minimum of 9°C (49°F) to a pleasant average of 16°C (61°F) and a maximum of 25°C (77°F). In contrast, February is much chillier, with temperatures dipping as low as -6°C (22°F) and only reaching an average of 5°C (41°F). Both months experience about 7 days of precipitation, but February sees a higher total of 42 mm (1.7 in) compared to May's 30 mm (1.2 in). Additionally, humidity levels are slightly elevated in February at 83%, whereas in May, it sits at 73%. For more details on February weather, you can refer to Constanta weather in February.

In comparing the weather between May and March, May showcases significantly milder temperatures, with an average of 16°C (61°F) and a maximum reaching 25°C (77°F), while March experiences much colder conditions, averaging only 6°C (43°F) and peaking at 16°C (61°F). Additionally, May has lower precipitation levels at 30 mm (1.2 in) across 7 days, compared to March’s wetter conditions, which see 44 mm (1.7 in) over 8 days. Humidity in May stands at 73%, slightly less than March’s higher humidity of 80%. For more detailed insights about March weather, check out Constanta weather in March.

In comparing the weather between April and May, we notice that May generally enjoys warmer temperatures. While April has a minimum temperature of 3°C (38°F) and an average of 10°C (50°F), May's temperatures range from a minimum of 9°C (49°F) to an average of 16°C (61°F). The maximum temperature in May reaches 25°C (77°F), surpassing April's peak of 20°C (69°F).

Precipitation levels are relatively similar, with May receiving 30 mm (1.2 in) over 7 days compared to April’s 28 mm (1.1 in) across 6 days. Humidity remains fairly consistent, with April at 76% and May slightly lower at 73%. For detailed insights into April's weather specifics, you can visit Constanta weather in April.

In May, the weather is generally cooler with average temperatures ranging from a minimum of 9°C (49°F) to a maximum of 25°C (77°F) and an average of 16°C (61°F). The month sees about 30 mm (1.2 in) of precipitation over approximately 7 days, accompanied by a humidity level of 73%. In contrast, June warms up significantly, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 29°C (84°F), averaging 21°C (71°F). However, June is wetter, experiencing around 67 mm (2.6 in) of rain spread over 10 days, while humidity decreases slightly to 68%. For a detailed overview of June's weather patterns, check out Constanta weather in June.

May and July exhibit distinct weather patterns, making each month unique. In May, temperatures range from a chilly minimum of 9°C (49°F) to a pleasant maximum of 25°C (77°F), with an average of 16°C (61°F). The month experiences moderate rainfall, totaling about 30 mm (1.2 in) across roughly 7 days, with a humidity level of 73%. In contrast, July is significantly warmer, with temperatures soaring from a minimum of 17°C (62°F) to a peak of 31°C (87°F), averaging 24°C (75°F). Although July has higher precipitation at 50 mm (2.0 in) over 6 days, the humidity is lower at 65%. For more details about July weather, you can check out Constanta weather in July.

In May, the weather is cool and mild, with average temperatures around 16°C (61°F) and maximums reaching up to 25°C (77°F). The month experiences about 30 mm (1.2 in) of precipitation over approximately 7 days, contributing to a higher humidity level of 73%. In contrast, August brings warmer weather, with an average temperature of 25°C (77°F) and maximum highs climbing to 30°C (87°F). Rainfall is significantly lower in August, totaling just 11 mm (0.4 in) over 3 days, and humidity drops to a more comfortable 53%. For more detailed information, you can check Constanta weather in August.

May and September offer contrasting weather experiences. In May, temperatures range from a minimum of 9°C (49°F) to a maximum of 25°C (77°F), with an average of 16°C (61°F) and a higher humidity level of 73%. This month also sees about 30 mm (1.2 inches) of precipitation over approximately 7 days, hinting at springtime showers. In contrast, September features milder weather with minimum temperatures of 11°C (52°F) and maximums reaching 28°C (83°F), averaging 21°C (70°F). Additionally, September is typically drier, with only 21 mm (0.8 inches) of rainfall spread over about 3 days and a lower humidity of 61%. For a detailed look at September weather, check out Constanta weather in September.

May and October exhibit similar average temperatures, both hovering around 16°C (61°F), but their daily temperature ranges differ slightly. In May, temperatures can peak at 25°C (77°F), making it generally warmer than October, where the maximum is slightly lower at 24°C (76°F). In terms of precipitation, October experiences more rainfall, totaling 50 mm (2.0 in) over about 5 days, compared to May's 30 mm (1.2 in) spread across 7 days. Additionally, October's humidity is slightly higher at 77% compared to May's 73%. For more details, you can check the Constanta weather in October.

May and November present contrasting weather patterns. In May, temperatures range from a pleasant minimum of 9°C (49°F) to a warm maximum of 25°C (77°F), with an average around 16°C (61°F). The month sees relatively low precipitation at 30 mm (1.2 in) over about 7 days, accompanied by a moderate humidity level of 73%. In contrast, November experiences cooler temperatures, with minimums dropping to -1°C (31°F) and maximums reaching 21°C (69°F), averaging 11°C (51°F). This month also sees increased precipitation, totaling 54 mm (2.1 in) spread over 9 days, alongside higher humidity levels of 85%. For a deeper look into the specifics of November weather, check out Constanta weather in November.

May and December present strikingly different weather conditions. In May, temperatures range from a mild 9°C (49°F) to a pleasant 25°C (77°F), with an average of 16°C (61°F). The month experiences relatively light precipitation of 30 mm (1.2 in) over about 7 days and a humidity level of 73%. In contrast, December sees much colder temperatures, with a minimum of -5°C (24°F), an average of 7°C (44°F), and a maximum of 16°C (61°F). The winter month has significantly higher precipitation at 68 mm (2.7 in) over 12 days and elevated humidity at 86%. For a closer look at the December weather specifics, visit Constanta weather in December.

Compare Constanta's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Constanta

As May rolls in, Constanta begins to shed the chill of spring, embracing milder temperatures that make it an enticing time to visit. With an average temperature comfortably settling around 16°C, both locals and tourists enjoy pleasant days, punctuated by occasional rain showers that contribute to a relatively humid atmosphere. Compared to the colder preceding months, May offers a refreshing transition, inviting outdoor activities and exploration without the oppressive heat of summer. With an average of seven rainy days and a total precipitation of 30 mm, the weather in May ensures lush landscapes and vibrant blooms. For more detailed insights on what to expect throughout the year, visit Constanta Climate.