May Weather in Piatra, Romania

Last updated: August 27, 2025

In Piatra, Romania, May ushers in a mix of mild temperatures and moderate precipitation. With maximums reaching 24°C (76°F) and averages around 12°C (54°F), the weather is generally pleasant, though temperatures can dip to a brisk low of -1°C (31°F). Expect the sky to open up on about 18 days, contributing to a total precipitation of 135 mm (5.3 in), creating a humid environment with average humidity levels of 71%. This month serves as a beautiful transition into the warmth of summer, making it an ideal time for outdoor activities amidst the occasional spring shower.

May Temperature in Piatra

As May unfolds in Piatra, Romania, the lingering chill of winter gives way to vibrant signs of spring. Temperatures begin to rise, with minimums hovering around -1°C (31°F) and averages warming to a pleasant 12°C (54°F). This transition is highlighted by daytime highs reaching a delightful 24°C (76°F), offering perfect conditions for outdoor activities and exploration. The month showcases a clear upward trend in temperatures compared to the cooler preceding months, indicating a progression towards the warmth of summer. May serves as a refreshing invitation to enjoy the blooming landscapes and vibrant atmosphere unique to this charming Romanian locale.

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

The chart illustrates May temperature patterns in Piatra, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Piatra, 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).
JanFebMarAprMayJunJulAugSepOctNovDec263136445461646557473931
Data source: Temperature data for Piatra 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 Piatra

May marks a significant increase in precipitation for Piatra, Romania, with rainfall soaring to 135 mm (5.3 in) over 18 days. This surge contrasts sharply with the drier months preceding it, like April, which recorded only 63 mm (2.5 in). The consistent rain throughout May not only revitalizes the landscape but also sets the stage for the even wetter months ahead, as June follows with an impressive 186 mm (7.3 in). This trend highlights May as a transitional month, where spring's mildness gives way to the more abundant rains of early summer, enriching the region's natural beauty and preparing it for the lushness of the warmer months.

May Precipitation Trends in Piatra

The chart displays monthly precipitation patterns in Piatra, 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 Piatra, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec4044646313518614110441704577
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Piatra

In May, humidity levels in Piatra, Romania demonstrate a notable transition as they dip to 71%, marking a continued decline from the wetter months of early spring. This decrease follows the significant drop from April's 73%, suggesting a trend towards dryer conditions that will become even more pronounced as summer approaches. The humidity further stabilizes in June at 70%, indicating a gradual shift towards a drier climate. Overall, May serves as a pivotal month, balancing the lingering dampness of early spring with the anticipation of warmer, less humid days ahead.

May Average Humidity in Piatra

This chart illustrates the average monthly humidity levels in Piatra, 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 Piatra is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%85%82%73%71%70%66%48%57%79%88%88%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Piatra

As spring transitions into summer in Piatra, Romania, the UV Index sees a significant uptick in May, reaching 8, designating it within the very high exposure category. This trend marks a sharp rise from the previous months, with burn times diminishing to a mere 15 minutes, urging residents and visitors to be vigilant about sun protection. Notably, May's UV levels continue to climb as the region prepares for June and July, which then peak at 9, emphasizing the need for caution as outdoor activities increase. Therefore, as you enjoy the blossoming beauty of May, remember to shield your skin and stay informed about the sun's powerful effects by checking the Piatra UV Index.

Maximum UV Index Levels in Piatra for May

The chart shows the monthly maximum UV Index (UVI) for Piatra 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 Piatra typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789997532
Data source: Piatra 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 Piatra

In Piatra, Romania, the month of May heralds a vibrant surge of sunshine, boasting 384 hours of sunlight—a welcome increase from the previous months. This period marks the pinnacle of spring, showcasing a steady rise in daylight that began in January with just 173 hours. As winter melts away, sunshine hours ascend in a consistent upward trend, culminating in June's peak of 398 hours. The gradual transition to summer is palpable, with each month bringing more warmth and brightness, creating the perfect backdrop for outdoor activities and vibrant blooms. May, with its balance of mild temperatures and plentiful sunshine, sets the stage for the sunniest months ahead, inviting residents and visitors alike to bask in the beauty of the blossoming landscape.

Monthly Sunshine Duration in Piatra: May Highlighted

The May sunshine duration represents the total number of hours Piatra 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.
JanFebMarAprMayJunJulAugSepOctNovDec173h230h288h342h384h398h420h402h337h284h219h190h
Data source: Piatra May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Piatra During May

In Piatra, Romania, the likelihood of sunny weather in May hovers around 38%, reflecting a slight uptick from the cooler months preceding it. As spring unfolds, it offers a moderate chance for sunshine, although it doesn't quite match the summer months, where July and August boast significantly higher probabilities at 54% and 55%, respectively. This subtle increase in sunshine likelihood is part of a gradual upward trend in weather patterns, with February showing the most sun at 39% before a gradual decline into the spring. As the days grow longer and warmer, May becomes a promising bridge to the sun-drenched days of summer, making it an appealing time for outdoor activities and exploration.

Percentage of Sunny Days in May in Piatra

The chart illustrates the percentage of sunny days in Piatra 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 Piatra experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%39%37%35%38%36%54%55%47%40%32%22%
Data source: Piatra May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Piatra in May

In Piatra, Romania, the month of May heralds a delightful increase in daylight, boasting approximately 14 hours of sunlight that invites both adventure and relaxation. This period marks a continuation of the upward trend that begins in March, following the dreary winter months when daylight lingers around 9 hours in January and November. As spring blossoms, daylight increases steadily, peaking in June with a generous 15 hours. However, as summer fades into autumn, daylight gradually diminishes, dropping to 12 hours in September and returning to 10 hours by October. This rhythm of increasing and decreasing light not only shapes the daily lives of Piatra's residents but also frames the changing beauty of the seasons in this picturesque Romanian town.

Average Daylight Hours in Piatra for May

The chart illustrates the variation in daylight duration in Piatra throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 10m10h 24m11h 56m13h 31m14h 52m15h 33m15h 11m14h12h 28m10h 54m9h 31m8h 48m
Data source: Piatra daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Piatra

In Piatra, Romania, the month of May carries on a trend seen throughout the year, with an average wind speed of 2.2 m/s (5 mph), mirroring the consistent breezy conditions of January through March. This gentle airflow is refreshing after the slight dip in speed observed in April. While the wind calms down in the summer months, dropping to 1.8 m/s (4 mph) in July and August, May remains a time of moderate winds, perfect for enjoying the lush spring scenery. As autumn approaches, the winds pick up slightly again, suggesting a rhythmic pattern that transitions the seasons while maintaining a delightful backdrop for outdoor activities.

Average May Wind Speed in Piatra

The chart displays monthly wind speed patterns in Piatra, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.22.22.21.92.2 m/s1.91.81.81.71.91.92.1
Data source: Piatra May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Piatra Compares to Other Months

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

May and January present a stark contrast in weather conditions. In May, temperatures range from a chilly minimum of -1°C (31°F) to a warm maximum of 24°C (76°F), with an average temperature of 12°C (54°F). This month experiences significant rainfall, averaging 135 mm (5.3 in) across about 18 days, coupled with a humidity level of 71%. Conversely, January is much colder, with temperatures dipping as low as -21°C (-5°F) and only reaching a maximum of 9°C (49°F). The average temperature hovers around -3°C (26°F) and precipitation is significantly less, at 40 mm (1.6 in) over just 7 days, although humidity is higher at 88%. For more details on January weather, you can visit the link: Piatra weather in January.

When comparing the weather in May and February, it's clear that May offers a significant contrast to the colder February temperatures. In May, temperatures range from a minimum of -1°C (31°F) to a pleasant average of 12°C (54°F), peaking at 24°C (76°F). The month experiences more precipitation, totaling 135 mm (5.3 in) over 18 days, with a humidity level of 71%. In stark contrast, February sees much colder conditions, with temperatures dipping to a minimum of -19°C (-1°F) and only reaching an average of -1°C (31°F), with a maximum of 16°C (62°F). February also has less rainfall, at just 44 mm (1.7 in) over 9 days, but higher humidity at 85%. For additional insights into February weather, you can check Piatra weather in February.

May typically brings milder weather compared to March, with average temperatures ranging from a low of -1°C (31°F) to a comfortable high of 24°C (76°F) and an overall average of 12°C (54°F). In contrast, March experiences much colder conditions, with temperatures that can drop to as low as -16°C (4°F) and typically hover around an average of just 2°C (36°F). While May has higher precipitation levels at 135 mm (5.3 in) spread across 18 days, March sees less rain, totaling 64 mm (2.5 in) over 11 days. Additionally, the humidity levels in March are slightly higher at 82% compared to May’s 71%. For more detailed insights on March weather, check out Piatra weather in March.

In comparing the weather between April and May, we see a notable increase in temperatures. April experiences a minimum of -11°C (13°F) and an average of 7°C (45°F), with a maximum of 23°C (74°F). In contrast, May sees a minimum of -1°C (31°F) and an average of 12°C (54°F), peaking at 24°C (76°F). Additionally, May has a higher precipitation rate of 135 mm (5.3 in) over 18 days, compared to April's 63 mm (2.5 in) over just 11 days. Interestingly, the humidity levels are quite similar, with April at 73% and May slightly lower at 71%. For more detailed insights on April's conditions, you can refer to Piatra weather in April.

In comparing the weather of May and June, we see a notable increase in temperatures as the seasons shift. May experiences a minimum temperature of -1°C (31°F) and an average of 12°C (54°F), while June begins at a higher minimum of 2°C (35°F) and averages a more pleasant 16°C (61°F). The maximum temperatures also rise, with May peaking at 24°C (76°F) compared to June's maximum of 28°C (83°F). However, June also brings increased precipitation, with 186 mm (7.3 in) spread over 23 rainy days, compared to May's 135 mm (5.3 in) over 18 days. Humidity levels remain relatively consistent, sitting at 71% in May and slightly lower at 70% in June. For more details on June's weather, check out Piatra weather in June.

In May, the weather is characterized by a wider temperature range, with minimums dipping as low as -1°C (31°F) and maximums reaching 24°C (76°F), creating an average temperature of 12°C (54°F). The month tends to be quite wet, with 135 mm (5.3 in) of rainfall over about 18 days and a humidity level of 71%. In contrast, July experiences a warmer climate with minimum temperatures at 7°C (44°F) and maximums soaring to 29°C (85°F), yielding an average of 18°C (64°F). While July also sees a considerable amount of rainfall at 141 mm (5.6 in) over 20 days, the humidity is slightly lower at 66%. For more specific information on July weather, you can visit Piatra weather in July.

May and August present quite distinct weather patterns. In May, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 24°C (76°F), with an average of 12°C (54°F). The month experiences significant rainfall, totaling 135 mm (5.3 in) over 18 days, resulting in a relatively high humidity of 71%. In contrast, August offers warmer conditions, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 31°C (88°F) and an average of 18°C (65°F). Precipitation decreases to 104 mm (4.1 in) across 13 days, leading to a lower humidity level of 48%. For a closer look at the specifics of August weather, check out Piatra weather in August.

May and September offer distinct weather experiences. In May, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 24°C (76°F), with an average of about 12°C (54°F). This month sees substantial rainfall, totaling 135 mm (5.3 in) over 18 days, contributing to a higher humidity level of 71%.

In contrast, September presents more mild conditions, with temperatures dipping slightly lower at a minimum of -3°C (27°F) and reaching up to 29°C (84°F), averaging around 14°C (57°F). Rainfall is significantly less, with only 41 mm (1.6 in) across just 8 days, resulting in a reduced humidity level of 57%. For more detailed insights on the weather during September, visit Piatra weather in September.

Comparing the weather in May and October reveals some notable differences. May generally enjoys milder temperatures, with an average of 12°C (54°F) and a maximum of 24°C (76°F), while October experiences a cooler average of 9°C (48°F) and a maximum of 23°C (74°F). Precipitation in May is more abundant, totaling 135 mm (5.3 in) over 18 days, compared to October's 70 mm (2.7 in) across just 9 days. Additionally, October has slightly higher humidity at 79%, compared to May's 71%. For more specific insights into October's climate, check out Piatra weather in October.

May and November present quite contrasting weather patterns. In May, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant maximum of 24°C (76°F), with an average of 12°C (54°F). The month experiences significant rainfall, totaling 135 mm (5.3 in) over about 18 days, and has a moderate humidity level of 71%. In contrast, November features a cooler environment, where temperatures drop, ranging from a minimum of -9°C (17°F) to a maximum of 22°C (72°F), averaging only 4°C (39°F). Precipitation is noticeably lower at 45 mm (1.8 in) over 10 days, while humidity rises to 87%, making it feel quite damp. For more insights on November weather, you can visit Piatra weather in November.

May and December offer starkly contrasting weather conditions. In May, temperatures range from a minimum of -1°C (31°F) to a pleasant average of 12°C (54°F), peaking at 24°C (76°F), while experiencing around 135 mm (5.3 in) of precipitation over approximately 18 days, accompanied by a humidity level of 71%. In comparison, December brings much colder conditions with temperatures dropping to a minimum of -17°C (2°F) and an average temperature of 0°C (31°F), while reaching a maximum of 14°C (57°F). Precipitation in December is considerably lower at 77 mm (3.0 in) and occurs over about 10 days, but the humidity is higher, at 88%. For more detailed information on December weather, you can visit Piatra weather in December.

Compare Piatra's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Piatra

As May unfolds in Piatra, the weather transitions markedly from the chill of earlier months, offering a refreshing blend of warmth and mildness. With average temperatures climbing to a pleasant 12°C, days gradually become more enjoyable, reaching peaks of 24°C that invite outdoor activities. However, the month also brings its share of rain, with approximately 135 mm of precipitation spread across 18 days, contributing to a humidity level of 71% that can feel quite damp. This combination of warmth and rain creates a lush atmosphere, making May distinctly different from the colder, drier winter months. Discover more about Piatra's seasonal patterns in our detailed page on Piatra Climate.