May Weather in Hannover, Germany

Last updated: February 26, 2025

In May, Hannover, Germany experiences a delightful range of weather, with maximum temperatures soaring to 31°C (88°F), providing a taste of early summer warmth. The average temperature hovers around a comfortable 13°C (56°F), while frosty nights can dip as low as 0°C (32°F). Rain is a frequent visitor during this month, totaling 63 mm (2.5 in) spread across about 11 days, resulting in a humidity level of 73%. Overall, May in Hannover is a vibrant month of fluctuating temperatures and moderate rainfall, perfect for those who enjoy the fresh bloom of springtime.

May Temperature in Hannover

In Hannover, Germany, May marks a delightful transition into warmer weather, with temperatures reflecting the vibrancy of spring. The month begins with a minimum temperature of 0°C (32°F), gradually rising to an average of 13°C (56°F), and peaking at a maximum of 31°C (88°F). This notable temperature increase shows how May acts as a forerunner to the hot summer months. The steady climb in average temperatures from the cooler preceding months, such as April with its max of 27°C (81°F), illustrates a shift towards more pleasant and inviting days. Enjoying the outdoor beauty becomes increasingly appealing as the city vibrates with life under brighter skies, making May an ideal time for visitors and locals alike to embrace the warmth of Hannover.

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

The chart illustrates May temperature patterns in Hannover, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec373842485665666659534440
Data source: Temperature data for Hannover 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 Hannover

May in Hannover, Germany features a precipitation level of 63 mm (2.5 in), which is consistent with the monthly averages observed in spring. This month experiences rainfall on approximately 11 days, reflecting a steady pattern throughout the season. Compared to the prior month of April, which had a lower precipitation total of 44 mm (1.7 in) and fewer rainy days, May brings a noticeable increase in both quantity and frequency of rainfall. The trend of rising precipitation continues into June, suggesting that the late spring months in Hannover are characterized by a moderate yet consistent wetness, supporting the lush greenery typical of the region. Overall, the precipitation pattern in May aligns well with the seasonal transition, emphasizing the role of spring rains in nourishing the landscape.

May Precipitation Trends in Hannover

The chart displays monthly precipitation patterns in Hannover, 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.
JanFebMarAprMayJunJulAugSepOctNovDec576264446367847160734569
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Hannover

As spring unfolds in Hannover, Germany, May brings a noticeable drop in humidity, averaging 73% compared to the winter months that hover around 91% to 89%. This seasonal shift sets a refreshing tone as the air becomes less laden with moisture, offering a comfortable environment after the chill of earlier months. Progressing into the summer, humidity continues to decline, reaching its annual low of 66% in both June and July. However, the pattern reverses as autumn approaches, with humidity levels rising again in September and October. Overall, May serves as a bridge from the dampness of winter to the more balanced conditions of summer, highlighting a clear transition in Hannover's climate.

May Average Humidity in Hannover

This chart illustrates the average monthly humidity levels in Hannover, 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%82%73%66%66%67%81%86%90%90%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Hannover

As spring unfolds into May in Hannover, Germany, the UV Index reaches 7, placing it in the high exposure category with a burn time of just 25 minutes. This marks a notable step up from the moderate levels seen in April, indicating that as the days grow longer and sunnier, the need for sun protection becomes increasingly crucial. Following May, the UV Index peaks at 8 during June and July, indicating a trend toward more intense sun exposure in the warmer months. It's essential for residents and visitors alike to stay vigilant about sunscreen and protective measures as the summer approaches. For more detailed information, check out the Hannover UV Index.

Maximum UV Index Levels in Hannover for May

The chart shows the monthly maximum UV Index (UVI) for Hannover 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Hannover 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 Hannover

In May, Hannover basks in a radiant glow, receiving a generous 381 hours of sunshine, marking it as one of the sunniest months of the year. This vibrant month follows a steady climb in daylight, beginning with 97 hours in January and gradually increasing through the spring, culminating in May’s splendid total. The trend reveals a beautiful transition from the gray depths of winter to the lively warmth of early summer, as residents are treated to more sun than in the previous months. This surge in sunshine not only enhances the charm of the city but also sets the stage for delightful outdoor activities alongside blossoming flora. As May progresses towards June, the sun continues to shine even brighter, peaking at 390 hours then, painting a hopeful picture of summer's arrival.

Monthly Sunshine Duration in Hannover: May Highlighted

The May sunshine duration represents the total number of hours Hannover 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.
JanFebMarAprMayJunJulAugSepOctNovDec97h187h259h338h381h390h397h381h308h241h160h119h
Data source: Hannover May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hannover During May

In Hannover, Germany, the likelihood of enjoying sunny weather shows a noticeable upward trend as spring progresses into May, where residents can expect about 29% chance of sunshine. This represents a slight dip from the April highs of 35%, yet remains significantly higher than the winter months, where January and February see chances of sun plummeting to 12% and 23%, respectively. As the months heat up into summer, the percentage starts to stabilize, with June and July hovering around 27% to 26%, indicating that while sunny days are certainly more abundant in May compared to earlier months, the transition into summer does not deliver a sharp increase in sunny weather. Overall, May offers a promising opportunity to bask in the sun before the peak summer months roll in, though it's prudent to keep an umbrella handy just in case!

Percentage of Sunny Days in May in Hannover

The chart illustrates the percentage of sunny days in Hannover 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 Hannover experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec12%23%37%35%29%27%26%29%33%27%15%15%
Data source: Hannover May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hannover in May

As spring gives way to summer in Hannover, Germany, May heralds a significant leap in daylight duration, reaching an inviting 15 hours. This shift is a continuation of the gradual increase that begins in January with just 8 hours, showcasing nature's awakening. February brings a modest gain to 9 hours, while March experiences a more substantial boost to 11 hours. By April, the daylight stretches to 13 hours, setting the stage for the sun-drenched days of May. June and July peak at 16 hours, creating a vibrant atmosphere perfect for outdoor activities. As the calendar turns to August, we witness a gentle tapering of daylight to 14 hours, followed by further declines leading into autumn. This pattern beautifully reflects the rhythm of seasons, offering a delightful balance between longer days of summer and the cozy embrace of fall.

Average Daylight Hours in Hannover for May

The chart illustrates the variation in daylight duration in Hannover throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 18m9h 55m11h 54m13h 56m15h 43m16h 39m16h 9m14h 33m12h 35m10h 34m8h 45m7h 47m
Data source: Hannover daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Hannover

In Hannover, Germany, May brings a refreshing breeze, with the average wind speed reaching 3.6 m/s (8 mph)—a pulsating continuation of the early spring’s winds. This slight increase from previous months is consistent with the spring trend, as both January and April share the same average wind speed. As the city transitions towards the warmer months, the wind patterns begin to shift noticeably, with June experiencing a notable drop to 2.3 m/s (5 mph), marking a significant decline that signals the onset of calmer summer days. The gentle winds of May, however, create an inviting atmosphere that encourages outdoor activities, perfectly complementing the blooming landscapes of the season. Overall, May's breezy yet moderate conditions serve as a delightful precursor to the lighter winds that define the summer months ahead.

Average May Wind Speed in Hannover

The chart displays monthly wind speed patterns in Hannover, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.63.43.53.43.6 m/s2.32.73.22.73.93.43.6
Data source: Hannover May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Hannover Compares to Other Months

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

May and January exhibit stark contrasts in weather patterns. In May, temperatures range from a chilly 0°C (32°F) to a warm 31°C (88°F), with an average of 13°C (56°F), while January sees much colder conditions, with temperatures dipping as low as -10°C (14°F) and peaking at only 14°C (58°F). Though both months experience approximately 11 days of precipitation, May tends to be slightly wetter with 63 mm (2.5 in) of rainfall compared to January's 57 mm (2.2 in). Additionally, January's humidity is higher at 91%, creating a chilly, damp atmosphere, whereas May has a more moderate humidity level of 73%. For a deeper look at January's climate, you can check Hannover weather in January.

May and February present strikingly different weather patterns. In May, temperatures range from a chilly 0°C (32°F) at the minimum to a warm 31°C (88°F) at the maximum, with an average of 13°C (56°F). The month sees about 63 mm (2.5 in) of precipitation over 11 days, accompanied by a humidity of 73%. Conversely, February experiences much colder conditions, with minimum temperatures dipping to -19°C (-3°F) and a maximum of 19°C (67°F), averaging just 4°C (39°F). Precipitation is slightly lower at 62 mm (2.4 in), also spread over 11 days, but humidity is higher at 89%. For a more detailed look at February's weather, check out Hannover weather in February.

In comparing the weather between March and May, March exhibits notably cooler temperatures, with a minimum of -11°C (13°F) and an average of 6°C (43°F), while May enjoys a much warmer climate, averaging 13°C (56°F) and peaking at a high of 31°C (88°F). Precipitation levels are relatively similar, with March receiving 64 mm (2.5 in) over 13 days, compared to May's 63 mm (2.5 in) over 11 days. Additionally, March has higher humidity at 87%, compared to May's 73%, contributing to a noticeably different feel between the two months. For more details on March weather specifics, check Hannover weather in March.

In comparing the weather between April and May, May generally offers milder temperatures with an average of 13°C (56°F) compared to April's cooler average of 9°C (49°F). While both months experience a range of temperatures, May showcases a higher maximum of 31°C (88°F) compared to April's 27°C (81°F). However, May also sees a slightly increased amount of rainfall at 63 mm (2.5 in) over 11 days, whereas April averages 44 mm (1.7 in) over 9 days. Humidity levels are relatively high in both months, with May at 73% and April at 82%. For a more detailed look at April's climate, you can visit Hannover weather in April.

In comparing the weather of May and June, we see notable variations. May experiences a wider range of temperatures, with a minimum of 0°C (32°F) and a maximum reaching 31°C (88°F), leading to an average temperature of 13°C (56°F). In contrast, June has milder minimum temperatures at 4°C (39°F) and averages a warmer 18°C (65°F), peaking at 33°C (92°F). Precipitation levels are fairly similar, with May receiving 63 mm (2.5 in) compared to June's 67 mm (2.6 in), both spread over 11 days. Humidity also decreases in June to 66%, down from May's 73%. For a detailed overview, you can check Hannover weather in June.

In May, temperatures begin to warm, with a minimum of 0°C (32°F), an average of 13°C (56°F), and a maximum reaching 31°C (88°F). With an average precipitation of 63 mm (2.5 in) over 11 days, the humidity remains relatively high at 73%. In contrast, July offers warmer conditions with a minimum temperature of 7°C (44°F), an average of 19°C (66°F), and maximums soaring to 37°C (98°F). The month sees increased precipitation totaling 84 mm (3.3 in) over the same number of rainy days, but with slightly lower humidity at 66%. For more details, you can check out Hannover weather in July.

In comparing the weather between May and August, one can see notable differences in temperature and precipitation. May features a broader temperature range, with a minimum of 0°C (32°F) and a maximum of 31°C (88°F), averaging around 13°C (56°F). It tends to be quite humid with an average of 73% and experiences about 63 mm (2.5 in) of precipitation over 11 days.

In contrast, August presents warmer conditions, with minimum temperatures starting at 6°C (44°F) and peaking at 36°C (97°F), averaging 19°C (67°F). Precipitation is slightly higher at 71 mm (2.8 in) over 12 days, but humidity drops to 67%. This shift indicates a transition to a hotter and slightly drier period as summer reaches its peak. For more details on August weather, visit Hannover weather in August.

May and September present surprisingly mild weather, though they show distinct characteristics. In May, temperatures range from a cool 0°C (32°F) at night to a warm 31°C (88°F) during the day, with an average of 13°C (56°F). The month experiences about 63 mm (2.5 in) of precipitation over 11 days, and humidity is relatively comfortable at 73%. In contrast, September boasts slightly higher average temperatures, with nights beginning at 1°C (35°F) and daytime highs reaching up to 32°C (90°F), averaging 15°C (59°F). Precipitation is slightly lower at 59 mm (2.3 in) across 10 days, but humidity levels rise to 81%. For more details on the weather in September, visit Hannover weather in September.

May and October exhibit distinct weather patterns, reflecting the transition between spring and autumn. In May, temperatures range from a chilly 0°C (32°F) at their lowest to a warm 31°C (88°F) at their peak, with an average of 13°C (56°F). Despite the pleasant warmth, May sees around 63 mm (2.5 in) of precipitation over 11 days, accompanied by a humidity level of 73%.

In contrast, October features cooler temperatures, with minimums dipping to -2°C (29°F) and a slightly lower maximum of 27°C (80°F), resulting in an average of 12°C (53°F). Rainfall increases slightly to 73 mm (2.9 in) across 14 days, and humidity rises to 86%. For a detailed look at the climate during this month, you can visit Hannover weather in October.

May and November present distinct weather contrasts. In May, temperatures range from a minimum of 0°C (32°F) to a maximum of 31°C (88°F), with an average of 13°C (56°F). The month experiences moderate precipitation of 63 mm (2.5 in) over 11 days and a humidity level of 73%. In contrast, November features cooler temperatures, with a minimum of -3°C (27°F) and a maximum of 20°C (69°F), averaging just 7°C (44°F). While November has slightly less precipitation at 45 mm (1.8 in) over 10 days, it boasts higher humidity, peaking at 90%. For more details on November conditions, check out Hannover weather in November.

May and December present starkly contrasting weather patterns. In May, temperatures range from a chilly 0°C (32°F) at night to a warm maximum of 31°C (88°F) during the day, with an average of 13°C (56°F). While May experiences 63 mm (2.5 in) of precipitation over 11 days, the humidity levels sit at a comfortable 73%. In contrast, December sees much colder temperatures, with a minimum of -10°C (14°F), an average of 4°C (40°F), and a maximum of 14°C (58°F). The month also has slightly higher precipitation at 69 mm (2.7 in) spread over 15 days, accompanied by a higher humidity level of 90%. For specific details on December weather, you can explore Hannover weather in December.

Compare Hannover's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Hannover

In May, Hannover experiences a delightful transition as temperatures rise, offering warm days that contrast sharply with the cooler temperatures of earlier months. With an average temperature around a pleasant 13°C, the city begins to shake off the remnants of winter, welcoming the vibrant blooms of spring. While May does see a few rainy days, the humidity remains relatively high, reminding us of the lush, green landscapes that flourish this time of year. Compared to April's chill and March's starkness, May brings a refreshing vitality, making it an ideal time to explore the outdoors. For more insights into Hannover's climate throughout the year, visit Hannover Climate.