May Weather in Koblenz, Germany

Last updated: February 26, 2025

In Koblenz, Germany, May brings a delightful mix of temperatures, with maximums reaching up to 31°C (89°F), juxtaposed against an average of 13°C (56°F) and occasional lows dipping to -1°C (31°F). This month is characterized by 66 mm (2.6 in) of rainfall spread over approximately 12 days, contributing to the region's lush greenery. The humidity levels hover around 77%, adding a touch of warmth to the air, making May a splendid time to experience the natural beauty and vibrant atmosphere of Koblenz.

May Temperature in Koblenz

In Koblenz, Germany, May signifies a delightful transition into warmth, showcasing increasingly pleasant temperatures compared to the preceding months. With minimums hovering around -1°C (31°F) and averages rising to 13°C (56°F), the city experiences a rejuvenating climate perfect for outdoor exploration. **Highs can reach a balmy 31°C (89°F), a far cry from the lingering chills of winter. This month stands out as a vibrant marker on the calendar, with temperatures steadily climbing, making May an ideal time for residents and visitors alike to embrace the beauty of Koblenz's blossoming spring scenery.

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

The chart illustrates May temperature patterns in Koblenz, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec363842495564666658514239
Data source: Temperature data for Koblenz 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 Koblenz

May in Koblenz, Germany, welcomes a significant uptick in precipitation, with 66 mm (2.6 in) of rain observed over 12 days. This increase continues the trend from April's lower total of 37 mm, marking a transition into a wetter spring. Interestingly, May's rainfall closely mirrors that of March, which had 65 mm, suggesting a consistency in the region's weather patterns leading into summer. Despite this rise, May is still relatively moderate compared to wetter months like December, which averages 89 mm, underscoring the gradual shift towards a more humid season. As spring unfolds, Koblenz experiences not only a rise in precipitation but also a rich array of blooms, making it a beautiful time to witness nature's revival.

May Precipitation Trends in Koblenz

The chart displays monthly precipitation patterns in Koblenz, 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.
JanFebMarAprMayJunJulAugSepOctNovDec605565376672676247554689
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Koblenz

As spring transitions into summer, May in Koblenz, Germany, brings a refreshing dip in humidity, with levels averaging 77%—a noticeable decline from the 84% recorded in April. This decrease marks the continuation of a downward trend seen from the wetter, chillier months of winter, where humidity peaks at a hefty 91% in January. As the temperature rises, Koblenz experiences a shift towards drier air in the subsequent months, with June and July boasting even lower levels at 74% and 72%, respectively. This gradual reduction not only contributes to a more comfortable atmosphere but also signals the approach of summer, inviting residents and visitors to enjoy the city's vibrant outdoor activities.

May Average Humidity in Koblenz

This chart illustrates the average monthly humidity levels in Koblenz, 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%90%87%84%77%74%72%71%81%88%91%92%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Koblenz

In Koblenz, Germany, the UV Index experiences a significant shift in May, reaching a high level of 7. This marks a noticeable increase from the lower values seen in the earlier months of the year, where the index hovered between 2 and 5. With a burn time of just 25 minutes, sun exposure becomes more critical, highlighting the importance of protective measures. As spring transitions towards summer, residents and visitors should remain vigilant, as the UV Index in June escalates even further to 8, classified as very high. To navigate these seasonal changes effectively, it's essential to stay informed about UV levels. For more details, check the complete Koblenz UV Index.

Maximum UV Index Levels in Koblenz for May

The chart shows the monthly maximum UV Index (UVI) for Koblenz 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.
JanFebMarAprMayJunJulAugSepOctNovDec234578875421
Data source: Koblenz 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 Koblenz

In Koblenz, Germany, the arrival of May ushers in a delightful surge of sunshine, with 391 hours of daylight illuminating the beautiful landscapes. This increase continues the upward trend observed since January, where just 104 hours of sunshine hardly warmed the spirits. As April approaches, the hours rise to 344, setting the stage for May's vibrant bloom. The sunshine not only reflects a generous sky but also invigorates the city, inviting both locals and visitors to revel in outdoor activities. As spring transitions to summer, June and July take the crown with 396 and 411 hours respectively, but May stands out as a pivotal moment of warmth and light, perfectly capturing the essence of the season's bloom.

Monthly Sunshine Duration in Koblenz: May Highlighted

The May sunshine duration represents the total number of hours Koblenz 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.
JanFebMarAprMayJunJulAugSepOctNovDec104h197h265h344h391h396h411h384h320h235h168h114h
Data source: Koblenz May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Koblenz During May

In Koblenz, Germany, the month of May experiences a 30% chance of sunny weather, reflecting a slight dip from the preceding months of April and March, which boast 43% and 42% chances, respectively. This trend suggests that while May transitions into a warmer season, it doesn't guarantee an abundance of sunshine, as the higher probability of clear days tends to linger earlier in spring. Interestingly, the likelihood of sunny weather in May aligns closely with the summer months that follow, like June and August, hovering around 30%-32%. Overall, if you're planning outdoor activities in May, it's wise to prepare for a mix of sunshine and cloud cover, continuing the unpredictable weather patterns that characterize the region in early summer.

Percentage of Sunny Days in May in Koblenz

The chart illustrates the percentage of sunny days in Koblenz 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 Koblenz experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec9%31%42%43%30%31%32%30%39%26%17%12%
Data source: Koblenz May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Koblenz in May

As spring unfolds into May in Koblenz, Germany, residents are greeted with a delightful 15 hours of daylight, marking a significant increase from the 13 hours in April. This upward trend, culminating in the longest days of the year in June, creates an invigorating atmosphere that invites outdoor activities and community gatherings. Following a gradual increase since January, when daylight was limited to just 8 hours, May shines as a beacon of longer, sun-filled days that enhance both mood and energy. As the months progress into the warmth of summer, daylight hours will peak, underscoring a natural rhythm that beautifully transitions from the quiet of winter to the vibrancy of spring and summer.

Average Daylight Hours in Koblenz for May

The chart illustrates the variation in daylight duration in Koblenz throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 34m10h 4m11h 55m13h 49m15h 27m16h 19m15h 51m14h 23m12h 33m10h 40m8h 59m8h 6m
Data source: Koblenz daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Koblenz

In Koblenz, Germany, May stands out as a month of lively breezes, with an average wind speed of 3.6 m/s (8 mph), slightly surpassing the windy onset of the year in January. Following a gradual decline in wind speeds from April’s 2.8 m/s (6 mph), May rejuvenates the air with its fresh gusts, hinting at the transition into summer. As June arrives, the winds mellow significantly to 2.3 m/s (5 mph), marking the beginning of a calmer season. This pattern reveals a notable seasonal fluctuation, where spring showcases increased wind activity, while summer tends to embrace a more tranquil atmosphere.

Average May Wind Speed in Koblenz

The chart displays monthly wind speed patterns in Koblenz, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.53.43.32.83.6 m/s2.32.62.82.13.32.53.1
Data source: Koblenz May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Koblenz Compares to Other Months

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

When comparing the weather in May and January, significant differences emerge in both temperature and conditions. May boasts a much warmer temperature range with a minimum of -1°C (31°F) and a pleasant average of 13°C (56°F), peaking at a balmy 31°C (89°F). In contrast, January presents chillier conditions, with temperatures dropping as low as -10°C (15°F), averaging just 2°C (36°F), and a maximum of 12°C (54°F). While both months receive similar levels of precipitation—around 60-66 mm (2.4-2.6 in) over roughly 12 days—January's higher humidity at 91% compared to May's 77% adds to the cold's intensity. For more insights into January's climate, check out Koblenz weather in January.

May and February present contrasting weather conditions in terms of temperature and humidity. In May, average temperatures range from a chilly 1°C (31°F) at night to a warm 31°C (89°F) during the day, with an overall average of 13°C (56°F). Meanwhile, February experiences much cooler temperatures, with a minimum of -11°C (12°F), an average of 3°C (39°F), and a maximum of 19°C (66°F). Precipitation is fairly similar in both months, with May receiving 66 mm (2.6 in) and February slightly less at 55 mm (2.2 in), both over about 12 days. Humidity in February is quite high at 90%, compared to May's 77%, contributing to the crispness of the winter air. For more detailed insights into February weather, you can refer to Koblenz weather in February.

When comparing the weather in May and March, it's evident that May enjoys significantly milder temperatures, with averages reaching 13°C (56°F) and maximums soaring to 31°C (89°F), while March is chillier, averaging 6°C (43°F) and peaking at only 22°C (72°F). Both months experience similar precipitation levels, approximately 66 mm (2.6 in), although March tends to have slightly more rainy days at 14 compared to May's 12. Humidity is also higher in March at 87%, compared to May's 77%. For a detailed look at March weather, you can visit Koblenz weather in March.

In comparing the weather of May and April, May tends to be warmer and drier. The average temperature in May reaches 13°C (56°F) with maximum highs soaring up to 31°C (89°F), while April has a lower average temperature of 9°C (49°F) and peaks at 26°C (79°F). Additionally, May experiences less rainfall at 66 mm (2.6 in) over 12 days compared to April's 37 mm (1.4 in) over 8 days, making it a comparatively sunnier month. However, humidity remains high in both months, with May at 77% and April slightly higher at 84%. For more detailed information, you can check Koblenz weather in April.

May weather presents a wider temperature range, with minimums dropping to -1°C (31°F) and maximums reaching up to 31°C (89°F), while the average temperature sits at 13°C (56°F). In contrast, June shows a milder minimum of 7°C (45°F) and a higher average of 18°C (65°F), with maximums peaking at 33°C (92°F). Despite slightly more precipitation in June at 72 mm (2.8 in) over 11 days compared to May's 66 mm (2.6 in) over 12 days, the humidity remains relatively close between the two months, with May at 77% and June at 74%. For more detailed information, check out Koblenz weather in June.

May’s weather showcases a broader temperature range, where overnight lows can dip to a frosty -1°C (31°F) while daytime highs soar up to a warm 31°C (89°F). With an average temperature of 13°C (56°F), humidity levels hover at 77%, and precipitation occurs about 12 days throughout the month, resulting in a fairly damp atmosphere. In contrast, July brings a milder minimum temperature of 7°C (45°F) and an increase in average temperatures to 19°C (66°F). The maximum temperature can reach a sweltering 37°C (100°F), while rainfall remains relatively steady at 67 mm (2.6 in) over just 10 days, and humidity levels drop slightly to 72%. For a detailed glimpse into the July conditions, check out Koblenz weather in July.

May and August showcase distinct variations in weather conditions. In May, temperatures range from a chilly minimum of -1°C (31°F) to a warm maximum of 31°C (89°F), with an average temperature of 13°C (56°F). The month experiences approximately 66 mm (2.6 in) of precipitation over 12 days, coupled with relatively high humidity at 77%. In contrast, August sees warmer average temperatures at 19°C (66°F), with a minimum of 6°C (43°F) and a maximum of 34°C (93°F). Precipitation in August is slightly less, at 62 mm (2.5 in) over the same number of days, along with lower humidity levels at 71%. For a more detailed look at the weather in August, you can visit Koblenz weather in August.

May and September both boast maximum temperatures that can reach up to 31°C (89°F), providing opportunities for warm days. However, May experiences a wider temperature range with minimums dipping to -1°C (31°F), while September's minimum stands at a milder 3°C (37°F). In terms of precipitation, May is wetter with an average of 66 mm (2.6 in) over about 12 days compared to September's 47 mm (1.8 in) across 7 days. Humidity levels are also comparable, with September slightly higher at 81% compared to May's 77%. For a deeper look at September weather specifics, you can refer to Koblenz weather in September.

In May, temperatures range from a chilly -1°C (31°F) at night to a warm 31°C (89°F) during the day, resulting in an average of 13°C (56°F). The month experiences 66 mm (2.6 in) of precipitation over about 12 days, with a humidity level of 77%. In contrast, October brings slightly cooler conditions, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 24°C (76°F), averaging around 11°C (52°F). Although October sees less rain, at 55 mm (2.2 in) also spread across 12 days, its humidity is higher at 88%. For more detailed insights on the climate, check out Koblenz weather in October.

May and November present contrasting weather patterns. In May, temperatures can range significantly from a chilly -1°C (31°F) at night to a warm 31°C (89°F) during the day, with an average of 13°C (56°F). This month also experiences relatively high humidity at 77% and a total precipitation of 66 mm (2.6 in) over approximately 12 days. In contrast, November tends to be cooler, with a minimum temperature of -3°C (27°F) and a maximum of 19°C (67°F), averaging only 6°C (42°F). The month is also marked by higher humidity at 91% but has less precipitation, totaling 46 mm (1.8 in) over about 10 days. For a more in-depth look at November's climate, check out Koblenz weather in November.

In May, the weather showcases a broad spectrum of temperatures, ranging from a minimum of -1°C (31°F) to a warm maximum of 31°C (89°F), with an average of 13°C (56°F). The month experiences about 66 mm (2.6 in) of precipitation spread across 12 days, accompanied by a moderate humidity level of 77%. In contrast, December brings chillier conditions, with temperatures dropping to a minimum of -6°C (22°F) and peaking at a maximum of 14°C (57°F), averaging 4°C (39°F). The precipitation increases to 89 mm (3.5 in) over 17 days, and relative humidity rises to 92%. For more details on the weather in December, you can check Koblenz weather in December. Overall, May is warmer and less damp compared to the colder and wetter December.

Compare Koblenz's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Koblenz

As May unfolds in Koblenz, it marks a distinct transition from the cool, damp remnants of spring to the warmth of approaching summer. While temperatures can rise to a delightful 31°C (89°F), the month still offers a refreshing average of around 13°C (56°F), making it more temperate than the chill of earlier months. This period experiences increased rainfall—66 mm (2.6 in) spread over 12 days—yet the invigorating humidity of 77% adds to the charm of the blossoming landscape. Overall, May's weather in Koblenz is a harmonious blend of warmth and refreshing rain, making it a vibrant time of year. For a detailed look at the yearly trends, check out the Koblenz Climate.