May Weather in Mannheim, Germany

Last updated: February 26, 2025

In Mannheim, Germany, the weather in May showcases a delightful range of temperatures, peaking at a maximum of 32°C (89°F), while averaging a comfortable 14°C (58°F), with cooler nights dipping to a minimum of 1°C (33°F). Although the month welcomes the warmth, it also brings about 74 mm (2.9 in) of precipitation, falling over 12 days, contributing to a humidity level of 79%. This combination of sun and occasional rain creates a vibrant and refreshing atmosphere, perfect for enjoying the blossoming beauty of early summer.

May Temperature in Mannheim

In Mannheim, Germany, the month of May marks a vibrant transition into warmer weather, showcasing a distinct upward trend in temperatures. With nightly lows averaging around 1°C (33°F), the days warm significantly, peaking at an impressive 32°C (89°F). The average temperature settles at a comfortable 14°C (58°F), making it one of the most pleasant months of the year. This month not only reflects a drastic improvement from the chilly winter months but also serves as a precursor to the scorching heat of June and July. As reaching for the sunnier side of spring, May beckons residents and visitors to embrace outdoor activities, enjoying the beautiful bloom of nature that accompanies the warmth.

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

The chart illustrates May temperature patterns in Mannheim, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec374044515868706962534339
Data source: Temperature data for Mannheim 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 Mannheim

May in Mannheim, Germany, experiences a notable increase in precipitation, with 74 mm (2.9 in) recorded over 12 days of rain. This uptick marks a contrast to the significantly drier April, which only saw 30 mm (1.2 in) over just 7 days. As spring transitions into summer, May's rainfall not only surpasses the earlier months but also aligns closely with June’s figures, suggesting a trend of consistent moisture that characterizes late spring into early summer. With blooming landscapes under frequent clouds, May reinforces its reputation as a month of lush growth, setting the stage for the warmer, rain-soaked months ahead.

May Precipitation Trends in Mannheim

The chart displays monthly precipitation patterns in Mannheim, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6158693074745754466150104
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Mannheim

In Mannheim, Germany, May marks a noticeable shift in humidity levels, dropping to 79%—the lowest for the year. This transition reflects a gradual decrease from the high humidity characteristic of winter months, which peaks at a soaking 91% in January and February. As spring unfolds, humidity steadily declines, making May more comfortable and inviting for outdoor activities. However, as summer approaches, humidity begins to rise again, peaking in the warmer months of July and August. This trend illustrates the dynamic nature of Mannheim’s climate, offering a refreshing break in May before the humidity settles back into its typical patterns.

May Average Humidity in Mannheim

This chart illustrates the average monthly humidity levels in Mannheim, 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.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%83%79%82%83%84%86%88%89%91%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Mannheim

As spring transitions into summer, Mannheim experiences a notable increase in UV exposure during May. With a UV Index of 8, the city enters the very high exposure category, significantly reducing safe burn time to just 15 minutes. This sharp rise from the moderate levels seen in earlier months underscores the importance of sun protection as outdoor activities become more enticing. As temperatures warm and sunlight intensifies, residents and visitors should remain vigilant to minimize skin damage and maximize enjoyment in the sun. For detailed information on UV levels throughout the year, visit Mannheim UV Index.

Maximum UV Index Levels in Mannheim for May

The chart shows the monthly maximum UV Index (UVI) for Mannheim 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.
JanFebMarAprMayJunJulAugSepOctNovDec234688876421
Data source: Mannheim 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 Mannheim

As spring blossoms into summer, May shines brightly in Mannheim, Germany, delivering an impressive 389 hours of sunshine—a remarkable increase from the preceding months. This upward trend in sunlight not only enhances the city's vibrant atmosphere but also signals the transition to longer and sunnier days. March and April set the stage with 274 and 347 hours respectively, paving the way for May's delightful rays. Following May, the sun continues to grace the city in June and July, with peak hours of 394 and 414, making this period a local favorite for outdoor activities and festivities. As the summer progresses into August, there is still a generous 386 hours of sunshine, before the light begins to wane in the autumn months. This steady climb in sunlight hours creates an inviting backdrop for residents and visitors alike, marking May as a particularly enchanting time in Mannheim.

Monthly Sunshine Duration in Mannheim: May Highlighted

The May sunshine duration represents the total number of hours Mannheim 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.
JanFebMarAprMayJunJulAugSepOctNovDec118h205h274h347h389h394h414h386h322h257h182h134h
Data source: Mannheim May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Mannheim During May

In Mannheim, Germany, the likelihood of sunny weather experiences a notable increase as spring unfolds, peaking in March and April with chances of 46% and 48% respectively. However, by May, this sunny enthusiasm dips to 32%. While still higher than the winter months, May's sunshine probability signals the transitional nature of early summer, which continues to hover around similar percentages into June and July. Overall, May presents a blend of blossoming flowers and occasional cloud cover, making it a delightful yet unpredictable month for those hoping to bask in the sun.

Percentage of Sunny Days in May in Mannheim

The chart illustrates the percentage of sunny days in Mannheim 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 Mannheim experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec13%36%46%48%33%35%38%30%44%32%20%16%
Data source: Mannheim May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Mannheim in May

As spring gives way to summer, Mannheim, Germany witnesses a delightful increase in daylight hours, peaking in May with a vibrant 15 hours of sunlight. This month heralds a significant shift from the shorter days of winter, where January barely offers 8 hours of daylight. The progression is steady; February introduces an additional 2 hours, while March adds another hour as the days stretch longer. April brings a noticeable burst of daylight with 13 hours, paving the way for the glorious brightness of May. Following this bright interlude, June reaches its zenith at 16 hours, before subtly descending in July and August. This trend underscores the charm of Mannheim's seasonal rhythm, where longer days invite outdoor activities and a rejuvenating energy as nature comes alive.

Average Daylight Hours in Mannheim for May

The chart illustrates the variation in daylight duration in Mannheim throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 40m10h 7m11h 55m13h 46m15h 21m16h 11m15h 45m14h 19m12h 32m10h 43m9h 4m8h 13m
Data source: Mannheim daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Mannheim

In Mannheim, Germany, the month of May stands out as a refreshing breeze in the spring season, with an average wind speed of 3.5 m/s (8 mph)—the highest recorded speed for the year. As the year progresses, wind speeds generally show a downward trend from the winter months, peaking briefly in May before tapering off into the summer. This notable increase in May, following the cooler months of January through April, suggests a transition into a more invigorating climate, making it a perfect time for outdoor activities. The subsequent months of June and July, however, see a decline in wind, stabilizing around 2.2 m/s (5 mph) and 2.4 m/s (5 mph), respectively. Thus, May offers a unique slice of dynamic weather, celebrating both the gentle warmth of spring and the brisk allure of wind, before the stillness of summer settles in.

Average May Wind Speed in Mannheim

The chart displays monthly wind speed patterns in Mannheim, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.32.83.02.73.5 m/s2.22.42.62.02.62.42.8
Data source: Mannheim May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Mannheim Compares to Other Months

The weather in Mannheim 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 Mannheim and find detailed weather information for every month.

May and January present contrasting weather conditions. In May, temperatures range from a chilly 1°C (33°F) at night to a warm 32°C (89°F) during the day, with an average of 14°C (58°F). This month experiences about 74 mm (2.9 in) of precipitation over approximately 12 days, accompanied by a humidity level of 79%. In stark contrast, January showcases much colder temperatures, with a minimum of -10°C (14°F) and a maximum of only 14°C (57°F), averaging just 3°C (37°F). Although it is a slightly drier month, January still sees around 60 mm (2.4 in) of precipitation over 13 days, with a higher humidity of 91%. To learn more about the specifics of January’s weather, check out Mannheim weather in January.

May and February present contrasting weather patterns. In May, temperatures range from a chilly 1°C (33°F) at night to a warm high of 32°C (89°F) during the day, with an average temperature of 14°C (58°F). This month also sees a relatively higher humidity level at 79% and more precipitation, totaling 74 mm (2.9 in) over about 12 days. In contrast, February experiences much colder temperatures, with a minimum of -9°C (16°F) and an average of just 4°C (40°F), peaking at 19°C (66°F). Precipitation in February is lower, amounting to 58 mm (2.3 in) across 11 days, but the humidity is slightly higher at 89%. For a closer look at February weather, check out Mannheim weather in February.

In May, the weather generally feels warmer and more inviting compared to March. While March can start quite chilly with minimum temperatures dropping to -10°C (15°F), May boasts a milder minimum of 1°C (33°F) and a much more comfortable average of 14°C (58°F). Additionally, May experiences higher maximum temperatures, reaching up to 32°C (89°F), while March peaks at a modest 23°C (73°F).

Although precipitation levels are similar, with May receiving 74 mm (2.9 in) over 12 days and March slightly less at 69 mm (2.7 in) over 13 days, the humidity is slightly lower in May at 79%, compared to a higher 87% in March. For those interested in detailed March conditions, you can explore more at Mannheim weather in March.

In comparing the weather of April and May, we see a noticeable shift in temperatures and precipitation. While April's minimum temperature can drop to -3°C (27°F), May experiences a milder minimum of 1°C (33°F). The average temperature rises from 11°C (51°F) in April to 14°C (58°F) in May, with May reaching a higher maximum of 32°C (89°F). Additionally, May is wetter with 74 mm (2.9 in) of precipitation over 12 days, compared to April's 30 mm (1.2 in) over just 7 days. Humidity remains relatively high in both months, with April slightly higher at 83% compared to May's 79%. For more detailed information, you can check Mannheim weather in April.

May and June exhibit noticeable differences in weather patterns. In May, temperatures range from a chilly minimum of 1°C (33°F) to a warm maximum of 32°C (89°F), with an average of 14°C (58°F). The month sees moderate precipitation of 74 mm (2.9 in) over about 12 days and maintains a humidity level of 79%.

In contrast, June brings a milder climate, with minimum temperatures rising to 8°C (46°F) and maximums reaching 37°C (99°F), resulting in a higher average of 20°C (68°F). While June has a similar total precipitation of 73 mm (2.9 in) over just 10 days, it experiences slightly higher humidity at 82%. For more detailed information on the June climate, you can check Mannheim weather in June.

May and July exhibit notable differences in weather patterns. In May, temperatures fluctuate from a chilly minimum of 1°C (33°F) to a comfortable average of 14°C (58°F), peaking at a warm 32°C (89°F). The month sees about 74 mm (2.9 in) of precipitation over 12 days, with humidity averaging 79%. In contrast, July offers warmer conditions with minimum temperatures at 9°C (49°F) and an average of 21°C (70°F), reaching a scorching maximum of 39°C (102°F). Rainfall decreases slightly to 57 mm (2.2 in) over 10 days, while humidity rises slightly to 83%. For more information on the July weather specifics, check out Mannheim weather in July.

In comparing the weather between May and August, we see notable differences in temperature and humidity. May experiences a broader temperature range with minimums as low as 1°C (33°F) and maximums reaching up to 32°C (89°F), while August has a milder minimum of 8°C (46°F) and a higher maximum of 36°C (97°F). Precipitation is slightly lower in August, totaling 54 mm (2.1 in) over 10 days, compared to May’s 74 mm (2.9 in) over 12 days. Additionally, August has a slightly higher humidity level at 84%, compared to May's 79%. For more detailed information on August weather, check out Mannheim weather in August.

May and September exhibit distinct weather characteristics, with May generally experiencing a wider temperature range. In May, temperatures vary from a chilly 1°C (33°F) to a warm 32°C (89°F), contributing to an average of 14°C (58°F). This month also sees frequent precipitation on approximately 12 days, totaling 74 mm (2.9 in), and a humidity level of 79%. In contrast, September offers slightly milder temperatures, ranging from a minimum of 4°C (40°F) to a maximum of 33°C (91°F), with an average of 16°C (62°F). Precipitation is reduced to 46 mm (1.8 in) over about 8 days, and humidity rises to 85%. For more specific insights on the weather in September, you can explore Mannheim weather in September.

May and October present distinct weather patterns, showcasing the transition between spring and autumn. In May, temperatures range from a chilly 1°C (33°F) at night to a warm 32°C (89°F) during the day, with an average of 14°C (58°F). This month also experiences 74 mm (2.9 in) of precipitation spread over 12 days, resulting in a humidity of 79%. In contrast, October features cooler temperatures, with a minimum of 1°C (34°F), an average of 12°C (53°F), and a maximum of 26°C (80°F). The total precipitation decreases slightly to 61 mm (2.4 in), though it still falls over the same number of days. Additionally, October tends to be more humid, with humidity levels rising to 88%. For further details, you can check Mannheim weather in October.

May and November showcase distinct differences in weather patterns. May typically experiences a milder climate with average temperatures ranging from 1°C (33°F) at night to a warm 32°C (89°F) during the day, contributing to an average of 14°C (58°F). However, it also brings higher humidity levels at 79% and more precipitation, totaling 74 mm (2.9 in) over about 12 days. In contrast, November presents a cooler atmosphere, with temperatures dipping as low as -3°C (26°F) and averaging only 6°C (43°F). The month has less precipitation, around 50 mm (1.9 in), over 10 days, but it is marked by a higher humidity level of 89%. For a more detailed look at November weather, you can check this link: Mannheim weather in November.

May and December present stark contrasts in weather conditions. In May, temperatures range from a minimum of 1°C (33°F) to a maximum of 32°C (89°F), with an average temperature of 14°C (58°F). The month enjoys moderate precipitation of 74 mm (2.9 in) spread over about 12 days, and the humidity is relatively comfortable at 79%. In contrast, December experiences much cooler temperatures, with a minimum of -6°C (21°F), an average of 4°C (40°F), and a maximum of 15°C (59°F). The month is wetter, featuring 104 mm (4.1 in) of precipitation over 18 days, accompanied by a higher humidity level of 91%. For more detailed insights into December weather, you can visit Mannheim weather in December.

Compare Mannheim's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Mannheim

As spring unfolds in Mannheim, May brings a delightful transition, with warmer temperatures making a striking contrast to the cooler months that precede it. With an average temperature climbing to a comfortable 14°C, the city experiences a mix of vibrant sunny days and occasional rain, totaling about 74 mm over 12 days. Humidity levels rise to a balmy 79%, enhancing the lushness of the season. Compared to the chill of early spring, May is a welcoming time for outdoor activities and exploration, paving the way for the summer warmth ahead. To learn more about what to expect throughout the year, check out Mannheim Climate.