May Weather in Namur, Belgium

Last updated: August 21, 2025

May in Namur, Belgium brings a delightful mix of weather experiences, with temperatures ranging from a brisk 0°C (32°F) at night to a warm 30°C (87°F) during the day. The average temperature settles around a comfortable 13°C (56°F), making it a pleasant time to explore the city's charm. However, the month is also marked by 14 days of rain, amounting to approximately 67 mm (2.6 in) of precipitation, contributing to a humidity level of 82%. Visitors can expect a refreshing blend of sunny days and occasional showers, perfect for enjoying the lush spring landscapes that Belgium has to offer.

May Temperature in Namur

May in Namur, Belgium ushers in a vibrant transition to warmth, with temperatures ranging from a crisp 0°C (32°F) at night to a pleasant 30°C (87°F) during the day. The average temperature of 13°C (56°F) marks a significant increase compared to the earlier months, reflecting the city's shift from the chill of winter and early spring. As daylight stretches longer, Namur begins to blossom, making May an ideal time to explore its picturesque landscapes and rich history. This month not only hints at the approaching summer but also balances cool evenings with increasingly warm afternoons, enticing both locals and visitors to enjoy outdoor activities. Overall, May showcases Namur's charm as it gently warms up, inviting everyone to bask in the rejuvenating embrace of spring.

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

The chart illustrates May temperature patterns in Namur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Namur, 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).
JanFebMarAprMayJunJulAugSepOctNovDec384144495664656559534441
Data source: Temperature data for Namur 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 Namur

May in Namur, Belgium, experiences a moderate precipitation level of 67 mm (2.6 in), marking a slight drop from the previous month. With 14 days of rain, this month continues the trend of spring showers, providing a lush backdrop as nature comes alive. Notably, May's precipitation is lower than the more substantial rainfall seen in March and June, which highlight the transitional nature of the season. As flowers bloom and outdoor activities begin to flourish, May strikes a balance between lush greenery and the pleasant days often sought after during this vibrant month.

May Precipitation Trends in Namur

The chart displays monthly precipitation patterns in Namur, 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 Namur, May typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec6973774267787789658660105
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Namur

In May, Namur, Belgium, experiences a shift in humidity as it dips to 82%, marking a gradual decline from the higher levels seen in the early months of the year. This trend signifies the transition into warmer weather, following a consistent decrease from 91% in January through 85% in April. Interestingly, the humidity remains stable into June, indicating a period of slightly drier air before summer fully sets in. Overall, May's humidity reflects the changing seasons, offering a refreshing break from the winter's dampness while still retaining some of that lingering moisture characteristic of Belgian weather.

May Average Humidity in Namur

This chart illustrates the average monthly humidity levels in Namur, 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 Namur is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Namur

As May rolls into Namur, Belgium, the UV Index climbs to 7, marking a shift to the high exposure category with a burn time of just 25 minutes. This increase reflects a notable trend as spring progresses, transitioning from the moderate levels observed in the preceding months. Compared to January's low UV Index of 2, the heightened intensity in May signals the arrival of sunnier days, urging residents and visitors alike to take necessary precautions against sunburn. With June following up with an even higher UV Index of 8, maintaining vigilance is essential. For more details on the UV Index throughout the year, visit Namur UV Index.

Maximum UV Index Levels in Namur for May

The chart shows the monthly maximum UV Index (UVI) for Namur 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 Namur typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234578875421
Data source: Namur 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 Namur

May in Namur, Belgium, shines brightly with 392 hours of sunshine, marking a delightful peak in the spring season. This month showcases a remarkable increase from the 342 hours recorded in April, highlighting the transition to warmer and sunnier days. As spring unfolds, Namur experiences a consistent upward trend in sunlight, with each month preceding May bringing more sunshine than the last. Following May, the sunshine continues its ascent into June with 400 hours, maintaining the momentum, before gradually tapering off in the summer months. This pattern not only illustrates the vibrant shift toward summer but also promises that May will be a captivating month for outdoor enthusiasts and sun seekers alike.

Monthly Sunshine Duration in Namur: May Highlighted

The May sunshine duration represents the total number of hours Namur 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.
JanFebMarAprMayJunJulAugSepOctNovDec115h196h262h342h392h400h401h379h318h239h183h129h
Data source: Namur May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Namur During May

In Namur, Belgium, the likelihood of sunny weather in May stands at 33%, a moderate decrease from the 49% noticeable in April. This decline marks a transitional phase as spring approaches its end, preceding the more variable summer months of June and July, which have similar chances of sunshine at 31% and 32%, respectively. Interestingly, despite May's drop in sunny days, it still offers better odds than the upcoming late summer months. Overall, while May may not guarantee sunshine, it retains a promising chance for those looking to bask in the emerging warmth of early summer.

Percentage of Sunny Days in May in Namur

The chart illustrates the percentage of sunny days in Namur 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 Namur experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec9%30%39%49%33%31%32%28%36%31%23%15%
Data source: Namur May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Namur in May

As spring unfolds in Namur, Belgium, daylight duration steadily increases, bringing a vibrant energy that culminates in May, where residents bask in 15 hours of sunlight. This trend reflects a significant leap from the 13 hours of daylight in April, signaling longer, brighter days that encourage outdoor activities and social gatherings. This increase continues into June, reaching a peak of 16 hours, before gradually tapering off in the summer months. The transition from early winter's mere 8 hours of daylight in January to the lush brightness of late spring underscores a refreshing shift that invites exploration and celebration of nature's revival. The rhythmic dance of daylight across the seasons not only marks time but also enriches the cultural fabric of Namur, enhancing the city's charm and allure.

Average Daylight Hours in Namur for May

The chart illustrates the variation in daylight duration in Namur throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 32m10h 3m11h 55m13h 50m15h 29m16h 21m15h 54m14h 24m12h 33m10h 39m8h 57m8h 3m
Data source: Namur daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Namur

May in Namur, Belgium, brings a refreshing average wind speed of 4.5 m/s (10 mph), a delightful breeze that sets the stage for outdoor adventures. This month stands out as part of a transitional pattern, where winds begin to pick up after a dip in April's calmer weather, which saw speeds drop to 3.4 m/s (8 mph). The trend suggests a lively transition into summer, contrasting nicely with the winter months when speeds hovered around 4.4 m/s. As spring unfolds, May’s winds complement the vibrant scenery, encouraging locals and visitors alike to embrace the beauty of nature while enjoying the gentle push of the breeze.

Average May Wind Speed in Namur

The chart displays monthly wind speed patterns in Namur, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.44.64.13.44.5 m/s2.83.53.42.94.43.44.2
Data source: Namur May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Namur Compares to Other Months

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

When comparing the weather in May and January, notable differences emerge. May enjoys a much warmer climate, with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 30°C (87°F) and an average of 13°C (56°F). In contrast, January presents a chillier atmosphere, featuring temperatures that dip as low as -8°C (18°F) and only reach a peak of 13°C (56°F), with an average of 3°C (38°F). Though both months experience similar levels of precipitation—67 mm (2.6 in) in May and 69 mm (2.7 in) in January—the humidity is higher in January at 91%, compared to 82% in May. For more specifics about January weather, you can check Namur weather in January.

May and February exhibit significantly different weather patterns. In May, temperatures range from a chilly 0°C (32°F) to a warm 30°C (87°F), averaging around 13°C (56°F), while February experiences much colder conditions, with a minimum temperature of -11°C (12°F) and a maximum of 19°C (66°F), averaging 5°C (41°F). Precipitation levels are relatively similar, with May receiving 67 mm (2.6 in) over 14 days compared to February's 73 mm (2.9 in) over 12 days. Additionally, February has a slightly higher humidity level at 89%, compared to 82% in May. For more details on February weather, check Namur weather in February.

Comparing the weather in May and March reveals distinct seasonal shifts. In May, temperatures range from a minimum of 0°C (32°F) to a maximum of 30°C (87°F), with an average of 13°C (56°F), making it significantly warmer than March. In contrast, March experiences colder temperatures, with a minimum of -10°C (15°F) and a maximum of 23°C (74°F), averaging around 7°C (45°F). Additionally, while May has a total of 67 mm (2.6 in) of precipitation over 14 days, March sees slightly higher precipitation at 77 mm (3.0 in) over 15 days. Humidity levels are also higher in March at 87%, compared to 82% in May. For more specific information on March weather, check out Namur weather in March.

In comparing the weather of May to that of April, we can see a noticeable rise in temperatures and precipitation patterns. May boasts a minimum temperature of 0°C (32°F) and an average of 13°C (56°F), with maximums reaching up to 30°C (87°F), indicating a warmer trend compared to April, whose temperatures range from a minimum of -3°C (26°F) to an average of 10°C (50°F) and a maximum of 27°C (80°F). Additionally, May experiences more days of precipitation, totaling 67 mm (2.6 in) over 14 days, compared to April's 41 mm (1.6 in) over just 8 days. While April has slightly higher humidity at 85%, May's humidity follows closely at 82%. For a more detailed look at April weather, you can check out Namur weather in April.

May and June exhibit distinct variations in weather patterns. In May, temperatures swing from a chilly minimum of 0°C (32°F) to a comfortable average of 13°C (56°F), peaking at a warm 30°C (87°F). Precipitation is relatively moderate, with 67 mm (2.6 in) falling over 14 days, and humidity remains high at 82%. In contrast, June brings a noticeable increase in warmth, with minimum temperatures starting at 6°C (44°F), an average of 18°C (64°F), and highs reaching up to 33°C (91°F). Although June sees slightly more precipitation at 78 mm (3.1 in) over 13 days, humidity remains consistent at 82%. For further details on June weather, visit Namur weather in June.

May and July exhibit notable contrasts in weather patterns. May brings cooler temperatures, with a minimum of 0°C (32°F) and an average of 13°C (56°F), making it a transitional month as spring unfolds. In contrast, July features much warmer conditions, with a minimum of 7°C (45°F) and an average reaching 19°C (66°F), peaking at a scorching 37°C (99°F). Precipitation is slightly higher in July at 77 mm (3.0 in) over 10 days, compared to May's 67 mm (2.6 in) across 14 days. Both months experience high humidity, but May is slightly more humid at 82%, compared to July's 80%. For more details, you can check Namur weather in July.

May and August present contrasting weather patterns, with May experiencing cooler temperatures ranging from 0°C (32°F) to a maximum of 30°C (87°F) and an average of 13°C (56°F). The month sees about 67 mm (2.6 in) of precipitation over 14 days, coupled with high humidity at 82%. In contrast, August is warmer, with a temperature range of 7°C (44°F) to 36°C (97°F) and an average of 18°C (66°F). While August is generally drier with 89 mm (3.5 in) of rain over the same number of days, it has lower humidity at 76%. For more details on August’s weather, you can refer to Namur weather in August.

In May, temperatures range from a chilly 0°C (32°F) at night to a warm 30°C (87°F) during the day, with an average of 13°C (56°F). The month experiences about 67 mm (2.6 in) of precipitation over 14 days, contributing to the high humidity level of 82%. In contrast, September sees slightly higher minimum and average temperatures, with lows of 2°C (37°F) and an average of 15°C (59°F), while daytime highs can reach up to 33°C (92°F). Precipitation is similar, totaling around 65 mm (2.5 in) over 11 days, and humidity remains consistent at 82%. For more detailed insights into September weather patterns, you can refer to Namur weather in September.

May and October exhibit distinct characteristics in terms of weather patterns. May typically starts with cool nights, where temperatures can dip to around 0°C (32°F), but daytime highs can reach a warm 30°C (87°F), resulting in an average temperature of 13°C (56°F). The month experiences moderate rainfall, with about 67 mm (2.6 in) of precipitation over 14 days, and humidity averaging 82%.

In contrast, October experiences slightly cooler temperatures, with a minimum of 1°C (34°F) and a maximum of 25°C (77°F). The average temperature decreases to 12°C (53°F), and the month sees more precipitation, totaling 86 mm (3.4 in) over 13 days, accompanied by higher humidity at 89%. For a more detailed look at October weather, you can visit Namur weather in October.

May and November showcase contrasting weather patterns, reflecting the transition from spring to late autumn. In May, temperatures range from a chilly 0°C (32°F) at night to a warm 30°C (87°F) during the day, with an average of around 13°C (56°F). The month sees about 67 mm (2.6 in) of precipitation over 14 days, accompanied by relatively high humidity at 82%. In contrast, November experiences colder temperatures, with minimums dipping to -3°C (27°F) and a maximum of only 18°C (64°F), averaging around 7°C (44°F). Precipitation slightly decreases to 60 mm (2.3 in) across 12 days, but humidity rises to a notable 92%. For more insights on November weather, you can refer to Namur weather in November.

In May, the weather is generally milder with temperatures ranging from a minimum of 0°C (32°F) to a maximum of 30°C (87°F), averaging around 13°C (56°F). With 67 mm of precipitation over approximately 14 days, humidity levels sit at a comfortable 82%. In contrast, December brings a chillier climate, with temperatures dipping as low as -4°C (24°F) and peaking at 15°C (58°F), averaging just 5°C (41°F). The month experiences heavier rainfall, totaling 105 mm across 18 days, while humidity rises to 92%. For more detailed information, check out Namur weather in December.

Compare Namur's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Namur

As May envelops Namur, the weather begins to transition, offering a delightful blend of warmth and freshness that starkly contrasts with the colder months. With daytime temperatures reaching up to a balmy 30°C (87°F), the city blooms under the embrace of spring, inviting outdoor activities and exploration. However, the notable humidity at 82% and occasional precipitation—with about 14 rainy days—remind us of the seasonal shift. This makes May a time of vibrant reawakening, where the lush landscapes flourish, although it calls for a light jacket in the cooler evenings. For a detailed understanding of what to expect throughout the year, take a closer look at Namur Climate.