May Weather in Liege, Belgium

Last updated: August 21, 2025

May in Liège, Belgium is characterized by a vibrant transition into warmer weather, with temperatures reaching a maximum of 31°C (89°F) and settling at a comfortable average of 14°C (57°F). However, the month also brings occasional chills, as minimum temperatures can dip to 0°C (33°F). Rainfall is moderate, with 65 mm (2.5 in) spread over 13 days, contributing to a humidity level of 77% that enhances the lush greenery of the region. This combination of warm days and cooling showers creates a dynamic and refreshing atmosphere, making May a delightful time to experience Liège's blossoming beauty.

May Temperature in Liege

In May, Liege, Belgium, experiences a delightful transition into warmer weather, with temperatures steadily climbing. The month begins with a minimum of 0°C (33°F), offering a refreshing chill that quickly gives way to an average of 14°C (57°F), highlighting the shift towards more enjoyable spring days. The maximum temperature surges to a warm 31°C (89°F), marking May as a notable month for outdoor activities and vibrant blooms in the city. This significant increase from the chillier early months showcases a trend of rising temperatures, inviting residents and visitors alike to embrace the lush greenery and cultural festivities that flourish during this season.

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

The chart illustrates May temperature patterns in Liege, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Liege, 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).
JanFebMarAprMayJunJulAugSepOctNovDec384145505665666659534441
Data source: Temperature data for Liege 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 Liege

In May, Liege experiences a notable transition in its weather patterns, with precipitation amounting to 65 mm (2.5 in) over 13 days, reflecting a mild yet damp start to the summer season. This increase from April's 39 mm (1.5 in) suggests a return to wetter conditions, characteristic of the region's spring climate. Interestingly, while May's rainfall is less than that of both March and June, the frequency of precipitation days signals a consistent drizzle that keeps the landscape lush. Overall, May's mix of moderate rainfall sets the stage for the wettest months ahead, as the region gears up for the abundant showers of June, which typically sees an even higher average of 88 mm (3.5 in).

May Precipitation Trends in Liege

The chart displays monthly precipitation patterns in Liege, 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 Liege, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec7176803965888284658758106
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Liege

As spring transitions into summer, May in Liège, Belgium, showcases a notable dip in humidity, dropping to 77% from the higher levels of earlier months. This reduction is a refreshing break from the pervasive dampness of winter and early spring, where humidity levels hovered around 90% in January and February. Following this pattern, a steady decline continues into June with 74% humidity, indicating a shift toward drier conditions as the region warms up. The gradual decrease in moisture not only makes for more pleasant outdoor experiences, but it also highlights Liège's seasonal evolution, where the transition from snug, humid days to the crisp air of summer begins to unfold beautifully.

May Average Humidity in Liege

This chart illustrates the average monthly humidity levels in Liege, 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 Liege is approximately {2}%, offering insight into how humid the weather typically is during this month.
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 Liege

As May unfolds in Liege, Belgium, residents and visitors alike should be mindful of the rising UV Index, which peaks at 7 this month, indicating a high exposure category. This sharp increase from the moderate levels of the previous months signals a significant change in sun intensity, shortening the safe burn time to just 25 minutes. This trend continues into June, where it escalates further to a very high UV Index of 8, making it crucial for outdoor enthusiasts to protect their skin. It's a reminder that as spring warms into summer, awareness of UV exposure becomes increasingly vital. For more details on UV levels throughout the year, check out Liege UV Index.

Maximum UV Index Levels in Liege for May

The chart shows the monthly maximum UV Index (UVI) for Liege 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 Liege typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Liege 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 Liege

In Liège, Belgium, the arrival of May heralds a radiant transformation, as the city experiences a notable increase in sunshine hours, reaching 395 hours. This upswing follows a progressive climb from 120 hours in January through 342 hours in April, showcasing a beautiful transition into spring. With sunny days peaking in both May and June at the same vibrant count, residents and visitors alike bask in the warm glow of longer daylight. As summer approaches, July slightly outshines June, boasting 407 hours, before the hours begin to taper off in August. Overall, this gradual escalation underscores the enchanting allure of Liège in the spring and early summer, making it an ideal time to explore its scenic vistas.

Monthly Sunshine Duration in Liege: May Highlighted

The May sunshine duration represents the total number of hours Liege 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.
JanFebMarAprMayJunJulAugSepOctNovDec120h204h270h342h395h395h407h380h318h241h190h134h
Data source: Liege May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Liege During May

In Liege, Belgium, the chance of sunny weather experiences a notable rise as spring progresses, peaking at 45% in April before dipping to 31% in May. This trend suggests that while May showcases an enjoyable amount of sunshine, it's not quite as abundant as in its predecessor month. Interestingly, the likelihood of sun remains relatively consistent through the early summer months, hovering around 32% in both June and July. Despite the fluctuating statistics, May still promises opportunities for sunny days, encouraging outdoor plans and gatherings in the heart of spring.

Percentage of Sunny Days in May in Liege

The chart illustrates the percentage of sunny days in Liege 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 Liege experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec9%32%39%45%31%32%33%30%37%30%26%15%
Data source: Liege May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Liege in May

As spring gives way to summer in Liège, Belgium, May heralds a delightful increase in daylight, offering an impressive 15 hours of sunlight each day. This trend of lengthening days accelerates from the 8 hours of daylight in January through 10 hours in February, steadily rising to 11 hours in March and 13 hours in April. May is a pivotal month that showcases the region's vibrant transition, where longer days not only invite outdoor activities but also breathe life into the blossoming landscape. Following May, daylight begins to taper slightly in the summer months, reaching a peak of 16 hours in June before gradually decreasing. This cyclical pattern of daylight reflects the seasonal shifts, creating a rhythm that residents and visitors alike can enjoy throughout the year.

Average Daylight Hours in Liege for May

The chart illustrates the variation in daylight duration in Liege throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 29m10h 1m11h 55m13h 51m15h 32m16h 25m15h 57m14h 26m12h 34m10h 38m8h 55m8h
Data source: Liege daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Liege

In May, Liege, Belgium experiences a welcomed revitalization of wind, mirroring the gentle breezes of January and October with an average speed of 4.3 m/s (10 mph). This uptick follows the noticeable decline from April's calmer 3.1 m/s (7 mph), signaling a shift as spring fully embraces the region. The months preceding May show a trend of fluctuating wind speeds, with March and April offering the lightest gusts before returning to a more invigorating pace in May. As the month unfolds, the winds not only enhance Liege’s charm but also contribute to the lively ambiance of the city, setting the stage for outdoorsy adventures and delightful strolls along its picturesque streets.

Average May Wind Speed in Liege

The chart displays monthly wind speed patterns in Liege, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.34.43.93.14.3 m/s2.73.33.32.84.33.34.1
Data source: Liege May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Liege Compares to Other Months

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

May and January present quite contrasting weather patterns. In May, temperatures range from a minimum of 0°C (33°F) to a maximum of 31°C (89°F), with an average of 14°C (57°F), creating a warm and vibrant atmosphere. In contrast, January temperatures are much colder, with a minimum of -8°C (18°F) and a maximum of 13°C (57°F), averaging around 3°C (38°F).

Precipitation is nearly similar in both months, with May receiving 65 mm (2.5 in) and January slightly higher at 71 mm (2.8 in), both with about 13 days of rain; however, January is characterized by higher humidity at 91%, compared to May’s 77%. To explore more about January weather in this region, visit Liege weather in January.

May and February present quite contrasting weather conditions. In May, temperatures range from a chilly 0°C (33°F) at night to a warm 31°C (89°F) during the day, averaging around 14°C (57°F). The month sees about 65 mm (2.5 in) of precipitation over 13 days, with humidity levels at a moderate 77%. In contrast, February is much colder, with temperatures dipping as low as -9°C (16°F) and peaking at only 20°C (69°F), resulting in an average of 5°C (41°F). The precipitation in February is slightly higher, totaling 76 mm (3.0 in) across 12 days, and the humidity is notably higher at 90%. For more detailed information on February weather, you can visit Liege weather in February.

May generally sees milder temperatures compared to March, with minimums at 0°C (33°F) and averages of 14°C (57°F), reaching up to a maximum of 31°C (89°F). In contrast, March experiences colder temperatures, ranging from a minimum of -9°C (16°F) to an average of 7°C (45°F), with maximum temperatures hitting 23°C (74°F). While May has a lower total precipitation of 65 mm (2.5 in) over 13 days, March has 80 mm (3.1 in) spread out over 15 days, making it slightly wetter. Additionally, humidity levels are higher in March at 87% compared to 77% in May. For more specific details, you can check Liege weather in March.

May generally experiences milder temperatures compared to April, with average highs reaching up to 31°C (89°F) compared to April's maximum of 28°C (82°F). However, April is cooler overall, with a lower average temperature of 10°C (50°F) and a minimum of -4°C (25°F), while May has a minimum temperature of 0°C (33°F). Precipitation is significantly higher in May, with 65 mm (2.5 in) spread over 13 days, compared to April's 39 mm (1.5 in) over 8 days. Humidity remains relatively high in both months, at 77% in May and 84% in April, leading to a more humid feel in the latter. For a detailed look at April weather, you can visit Liege weather in April.

In May, temperatures in Liege range from a chilly minimum of 0°C (33°F) to a warm maximum of 31°C (89°F), with an average of 14°C (57°F). The month sees about 65 mm (2.5 in) of precipitation over 13 days, accompanied by relatively high humidity at 77%. In contrast, June experiences a milder temperature range, with minimums rising to 7°C (45°F) and averages climbing to 18°C (65°F), peaking at 33°C (92°F). Precipitation increases slightly to 88 mm (3.5 in) over 12 days, while humidity decreases slightly to 74%. For more detailed insights into the June weather, you can visit Liege weather in June.

May and July present distinct weather patterns, reflecting the transition from spring to summer. In May, temperatures range from a cool minimum of 0°C (33°F) to a comfortable average of 14°C (57°F), peaking at a warm 31°C (89°F). This month also experiences significant precipitation, with rainfall measuring 65 mm (2.5 in) over 13 days and a higher humidity of 77%. In contrast, July sees a warmer temperature spectrum, with a minimum of 8°C (46°F) and an average of 19°C (66°F), reaching maximums as high as 40°C (104°F). Although July has more precipitation at 82 mm (3.2 in), it falls over just 11 days, and the humidity decreases slightly to 72%. For a detailed look at July weather, you can check out Liege weather in July.

May and August present contrasting weather patterns. In May, temperatures fluctuate from a chilly 0°C (33°F) at night to a warm 31°C (89°F) during the day, with an average of 14°C (57°F). The month sees about 65 mm (2.5 in) of precipitation over 13 days, accompanied by relatively high humidity at 77%. In contrast, August generally offers milder nights with a minimum temperature of 7°C (44°F) and can reach as high as 36°C (97°F) during the day, averaging 19°C (66°F). While August experiences slightly more rainfall at 84 mm (3.3 in) spread over 15 days, the humidity is lower at 71%. For more detailed insights into August weather, check Liege weather in August.

May and September present distinctly warm yet variable weather patterns. In May, temperatures range from a cool 0°C (33°F) at night to a comfortable average of 14°C (57°F) during the day, with highs reaching up to 31°C (89°F). The month experiences around 65 mm of precipitation across 13 days, and humidity sits at 77%. Conversely, September brings slightly milder temperatures, with minimums at 3°C (37°F) and an average of 15°C (60°F), peaking at a warmer 34°C (93°F). Precipitation remains consistent at 65 mm, but falls over only 10 days, with humidity increasing to 81%. For more details on September weather specifics, you can check Liege weather in September.

In comparing the weather between May and October, May generally offers warmer temperatures, with averages reaching 14°C (57°F) and highs peaking at 31°C (89°F), while October's average is cooler at 12°C (54°F) with a maximum of 25°C (78°F). Precipitation in October is slightly higher at 87 mm (3.4 in) compared to May's 65 mm (2.5 in), although both months see rain on about 13 days. Additionally, October tends to be more humid, with levels at 88% compared to May's 77%. For more detailed insights on October weather, you can check Liege weather in October.

May and November present distinct weather characteristics, reflecting the transition from spring to late autumn. In May, temperatures range from a brisk 0°C (33°F) at night to a warm 31°C (89°F) during the day, with an average temperature of 14°C (57°F). The month sees about 65 mm (2.5 in) of precipitation over approximately 13 days, coupled with a humidity level of 77%.

In contrast, November is considerably cooler, with temperatures dropping to a minimum of -4°C (25°F) and peaking at 19°C (66°F), averaging around 7°C (45°F). While precipitation is slightly lower at 58 mm (2.3 in) and occurs over 11 days, the humidity rises to 91%, making the air feel particularly damp. For more detailed insights, you can check out Liege weather in November.

May and December present striking contrasts in weather patterns. In May, temperatures range from a chilly minimum of 0°C (33°F) to a warm maximum of 31°C (89°F), with an average temperature of 14°C (57°F). The month experiences about 65 mm (2.5 in) of precipitation over approximately 13 days and maintains a humidity level of 77%. In contrast, December sees much cooler conditions, with temperatures ranging from a minimum of -5°C (23°F) to a maximum of 15°C (59°F), resulting in a much lower average of 5°C (41°F). Additionally, December is wetter, with 106 mm (4.2 in) of rainfall spread across 19 days, and a higher humidity of 92%. For more detailed insights about December weather, visit Liege weather in December.

Compare Liege's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Liege

As May arrives in Liège, the transition to warmer weather becomes evident, with temperatures reaching pleasant highs and a gentle average that beckons for outdoor activities. Unlike the chill of earlier months, May brings a refreshing contrast, yet the mild evenings remind us not to forget a light jacket. With average humidity levels hovering at 77% and a moderate 65 mm of precipitation distributed over about half of the month, expect a mix of sunshine and seasonal showers. This balance fosters the beautiful blooming scenery that Liège is known for, making May a delightful time for those looking to explore the city's charm. For a detailed overview of the city's climate throughout the year, visit Liege Climate.