July Weather in Lille, France

Last updated: February 26, 2025

Lille, France, experiences a vibrant July, with temperatures ranging from a comfortable average of 19°C (66°F) to a scorching maximum of 39°C (103°F). Evenings offer a respite, dipping down to a refreshing minimum of 8°C (46°F). Visitors should be prepared for a slightly humid atmosphere, maintaining around 80% humidity, contributing to its lush summer feel. With approximately 50 mm (2.0 in) of rainfall over 10 days, July can mix sunny spells with occasional showers, enhancing the region's natural beauty. Whether basking in the sun or exploring charming streets, July in Lille offers a delightful blend of warmth and vitality.

July Temperature in Lille

In July, Lille experiences a delightful summer, characterized by its warmest temperatures of the year. With minimums around 8°C (46°F) and an average reaching 19°C (66°F), residents can expect pleasant days filled with sunshine. The peak temperatures can soar to an impressive 39°C (103°F), making this month a prime time for outdoor activities and vibrant city life. This trend of increasingly warm weather begins in June and continues into August, setting the stage for a lively summer atmosphere where locals and tourists alike bask in the warmth of sunny days and balmy evenings.

July Weather in Lille: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Lille, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec404346505664666660554643
Data source: Temperature data for Lille 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.

July Precipitation in Lille

In July, Lille experiences a moderate precipitation level of 50 mm (2.0 in), spread over about 10 rainy days. This marks a slight decrease from the wetter months of June and May, suggesting a transition towards drier summer conditions. Interestingly, while July's rainfall is less abundant, it remains vital for sustaining the lush green landscapes that characterize Northern France. As the month progresses, the average precipitation in Lille begins to rise again in August, reflecting a familiar seasonal trend where summer showers pave the way for a richer autumn. Overall, July balances between sun-soaked days and refreshing rain, embodying the charm of a typical French summer.

July Precipitation Trends in Lille

The chart displays monthly precipitation patterns in Lille, with values for each month alongside July's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec655964366160507151825695
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Lille

In July, Lille experiences a notable dip in humidity, averaging around 80%, which marks it as one of the more comfortable months of the year. This decrease follows a steady decline from the earlier summer months, where humidity levels hovered at 82% in both May and June. As temperatures rise during the summer, the lower humidity in July offers residents and visitors a brief respite, contrasting sharply with the winter months, where humidity spikes to 91% in January and 92% in December. The trend reveals a gradual reduction in humidity from the peak of winter, creating a pleasant balance that enhances the allure of Lille as a summer destination. As August approaches, humidity continues to fall further to 76%, signaling a transition towards drier conditions typical of late summer.

July Average Humidity in Lille

This chart illustrates the average monthly humidity levels in Lille, with July's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how July's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%87%85%82%82%80%76%82%89%92%92%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Lille

In July, Lille, France experiences a very high UV Index of 8, similar to June's levels, with a reduced burn time of just 15 minutes. This trend signifies a peak in sun exposure, making it crucial for residents and visitors alike to take precautions against harmful UV rays. As the summer progresses, the UV Index gradually declines from the highest levels of July into August, where it drops to 7, indicating a shift towards high exposure conditions. The overall pattern during these warmer months reveals a significant increase in UV intensity compared to the cooler winter months, underscoring the importance of sun safety practices. For more detailed information, check out Lille UV Index.

Maximum UV Index Levels in Lille for July

The chart shows the monthly maximum UV Index (UVI) for Lille in July, 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.
JanFebMarAprMayJunJulAugSepOctNovDec124578875421
Data source: Lille July 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.

July Sunshine in Lille

In Lille, France, July is a bright highlight in the year, boasting an impressive 421 hours of sunshine. This marks a steady rise from the 412 hours enjoyed in June, continuing a trend of increasing daylight as summer takes hold. The gradual accumulation of sunny hours throughout the spring and early summer—from just 121 hours in January to over 400 hours by May—culminates in July, where residents and visitors alike relish longer, sun-soaked days. While August maintains a respectable 389 hours, the peak sunshine in July acts as a vibrant reminder of the season's warmth, as the city basks in the delightful embrace of summer radiance. As autumn approaches, the daylight diminishes significantly, dropping to 325 hours in September, but the lingering glow of July remains a cherished memory in the hearts of all who experience it.

Monthly Sunshine Duration in Lille: July Highlighted

The July sunshine duration represents the total number of hours Lille experiences direct sunlight during the month of July, excluding cloudy or obstructed periods. This chart compares the sunshine duration of July with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec121h200h278h351h404h412h421h389h325h249h203h158h
Data source: Lille July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lille During July

In Lille, France, July presents a moderate chance of sunny weather, with about 35% of days likely enjoying sunshine. This period marks a slight decline compared to the earlier months, like April, which boasts a more optimistic 52% sun probability. Interestingly, July's forecast shows this sunny trend waning from the peak of spring and early summer, a pattern that continues into August with a 33% sunshine chance. While it's a summer month, the weather can be quite unpredictable, hinting that visitors might want to prepare for some cloudy days. Overall, the data suggests a gradual ebb in sunny days as the summer progresses, emphasizing the need for adaptable plans during this enchanting season in Lille.

Percentage of Sunny Days in July in Lille

The chart illustrates the percentage of sunny days in Lille throughout the year, with July 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 Lille experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec14%29%40%52%36%31%35%33%37%34%22%16%
Data source: Lille July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lille in July

In July, Lille, France, experiences a delightful sunshine bounty with 15 hours of daylight, a slight dip from the pinnacle of 16 hours in June. This summer month marks the peak of brightness, surrounded by a gradual increase in daylight from 8 hours in January to a remarkable 15 hours by May. Following the vibrant days of summer, daylight begins its slow retreat into the autumn months, with August offering 14 hours before the gradual decline takes hold in September and into the colder months. The rhythm of Lille’s daylight hours reflects the seamless transition of seasons, inviting residents and visitors alike to revel in the warmth and light of the July sun.

Average Daylight Hours in Lille for July

The chart illustrates the variation in daylight duration in Lille throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 30m10h 1m11h 55m13h 51m15h 32m16h 24m15h 56m14h 26m12h 34m10h 39m8h 55m8h 1m
Data source: Lille daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Lille

In July, Lille experiences a gentle breeze with an average wind speed of 3.3 m/s (7 mph), slightly lower than the preceding months. This mild wind is a continuation of the trend seen in June, where the wind speed dipped to 2.8 m/s (6 mph), suggesting a calmer summer atmosphere. As the year progresses, winds begin to pick up again in August with a marginal increase to 3.4 m/s (8 mph), hinting at a seasonal variation that keeps Lille's summer pleasantly breezy. Overall, the summertime winds remain soft, creating an inviting ambiance perfect for leisurely outdoor activities in this charming northern French city.

Average July Wind Speed in Lille

The chart displays monthly wind speed patterns in Lille, with values for each month shown alongside July's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how July's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.94.44.03.54.12.83.3 m/s3.42.94.13.24.0
Data source: Lille July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Lille Compares to Other Months

The weather in Lille changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of July's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Lille and find detailed weather information for every month.

In July, the weather is characterized by warmer temperatures, ranging from a minimum of 8°C (46°F) to a scorching maximum of 39°C (103°F), with an average of 19°C (66°F). The month sees moderate precipitation of about 50 mm (2.0 inches) over 10 days, accompanied by high humidity levels around 80%. In contrast, January presents a much colder climate, with temperatures dropping to a minimum of -6°C (22°F) and only reaching up to 15°C (59°F), averaging at 5°C (41°F). Despite slightly higher precipitation at 65 mm (2.6 inches) over 11 days, January's humidity peaks at 91%. For more detailed insights, you can check Lille weather in January.

In July, the weather presents a warm and often scorching environment, with temperatures ranging from a minimum of 8°C (46°F) to a sweltering maximum of 39°C (103°F), and an average of 19°C (66°F). The month experiences about 50 mm (2.0 in) of precipitation over approximately 10 days, accompanied by a humidity level of 80%. In contrast, February is much cooler, with temperatures dipping to a minimum of -8°C (18°F) and peaking at 19°C (66°F), averaging just 6°C (43°F). February sees slightly higher precipitation at 59 mm (2.3 in) over around 12 days, and the humidity is notably higher at 89%. The stark differences in temperature and overall climate highlight the transition from the heat of summer to the chill of winter. For more details on February weather, check out Lille weather in February.

In comparing the weather between July and March, notable differences emerge. July boasts much warmer temperatures, ranging from a cool minimum of 8°C (46°F) to an impressive maximum of 39°C (103°F), with an average of 19°C (66°F). In contrast, March experiences a much chillier climate, with temperatures ranging from a low of -7°C (20°F) to a high of 22°C (72°F), and an average of 8°C (46°F). While July has higher humidity at 80%, March has an even higher humidity level at 87%, which can make the cold temperatures feel even more biting. Precipitation is also interestingly distributed, with July recording 50 mm (2.0 in) over 10 days, while March has slightly more at 64 mm (2.5 in) over 14 days. For more detailed insights into the weather during March, check out Lille weather in March.

In comparing the weather between April and July, it's clear that July brings significantly warmer temperatures, with a range from a minimum of 8°C (46°F) to a maximum of 39°C (103°F) and an average of 19°C (66°F). In contrast, April experiences much cooler conditions, ranging from a minimum of -2°C (28°F) to a maximum of 26°C (78°F) and an average of 10°C (51°F). While both months see varying degrees of humidity, with July averaging around 80% and April slightly higher at 85%, July also receives more precipitation, totaling 50 mm (2.0 in) over about 10 days compared to April's 36 mm (1.4 in) over 7 days. For more details on weather conditions specific to April, you can explore Lille weather in April.

In comparing the weather of July and May, July experiences a significantly warmer climate with average temperatures reaching 19°C (66°F) and maximums soaring up to 39°C (103°F), while May features cooler temperatures, with an average of 13°C (57°F) and a maximum of 28°C (83°F). Precipitation is slightly less in July at 50 mm (2.0 in) over 10 days, compared to 61 mm (2.4 in) over 11 days in May, which indicates a wetter May despite the generally milder conditions. Humidity levels remain high in both months, with July's humidity at 80% and May's at 82%. For a detailed view, you can check Lille weather in May.

In comparing the weather between June and July, July generally exhibits warmer temperatures, with a minimum of 8°C (46°F) and an average of 19°C (66°F), compared to June's minimum of 5°C (41°F) and average of 18°C (64°F). The maximum temperature in July can soar to 39°C (103°F), significantly higher than June's peak of 33°C (91°F). Precipitation is slightly lower in July at 50 mm (2.0 in) over 10 days, whereas June experiences 60 mm (2.4 in) over 8 days. Despite these minor differences, humidity remains relatively high in both months, with July at 80% and June slightly higher at 82%. For a more detailed look at June's weather conditions, you can visit Lille weather in June.

In comparing the weather of July and August, we notice that both months experience similar minimum and average temperatures, with July peaking slightly higher at a maximum of 39°C (103°F), while August sees a maximum of 36°C (98°F). July also tends to be a bit drier with only 50 mm (2.0 in) of precipitation over 10 days, compared to August's 71 mm (2.8 in) of rain over 12 days, indicating a wetter month. Additionally, humidity remains relatively high in both months, but is slightly lower in August at 76% compared to July's 80%. For more detailed insights on the weather, check out Lille weather in August.

In comparing the weather of July and September, July typically experiences warmer temperatures, with a minimum of 8°C (46°F) and an average of 19°C (66°F), peaking at a scorching 39°C (103°F). In contrast, September sees cooler temperatures, with a minimum of 4°C (40°F) and an average of 16°C (61°F), reaching a maximum of 32°C (89°F). Both months feature similar precipitation levels, with July receiving 50 mm (2.0 in) over approximately 10 days and September slightly increasing to 51 mm (2.0 in) across 9 days. Additionally, humidity remains relatively high, with July at 80% and September marginally higher at 82%. For more detailed insights into September weather, check Lille weather in September.

July and October present contrasting weather patterns. In July, temperatures range from a minimum of 8°C (46°F) to a scorching maximum of 39°C (103°F), with an average of 19°C (66°F). The month experiences about 50 mm (2.0 in) of precipitation over roughly 10 days, and humidity levels hover around 80%. In stark contrast, October sees cooler temperatures, with a minimum of 2°C (35°F) and a maximum of 25°C (77°F), averaging at 13°C (55°F). Precipitation increases to 82 mm (3.2 in) over 13 days, along with higher humidity at 89%. For more detailed information, you can check Lille weather in October.

When comparing the weather in July and November, it's clear that the two months present contrasting climates. July boasts warmer temperatures, ranging from a minimum of 8°C (46°F) to a scorching maximum of 39°C (103°F), with an average of 19°C (66°F). In contrast, November experiences much cooler conditions, with temperatures dipping down to -1°C (30°F) at night and reaching a mild 19°C (67°F) at best, averaging around 8°C (47°F).

Although July sees slightly less precipitation at 50 mm (2.0 in) across about 10 days, November has a higher total of 56 mm (2.2 in) over 12 days. Humidity also rises in November to 92%, compared to July's 80%, making for a noticeably damp atmosphere. For a detailed look at November's weather conditions, you can visit Lille weather in November.

In July, the weather is significantly warmer, with temperatures ranging from a brisk 8°C (46°F) to a scorching high of 39°C (103°F) and an average of 19°C (66°F). The month sees about 50 mm (2.0 in) of precipitation, spread over 10 days, coupled with a relatively high humidity of 80%. In contrast, December brings much colder conditions, with temperatures dipping as low as -4°C (26°F) and averaging only 6°C (43°F), while reaching a maximum of 15°C (59°F). This winter month is wetter, with a total of 95 mm (3.8 in) of rainfall spread across 17 days and even higher humidity at 92%. For more details on the winter weather, you can refer to Lille weather in December.

Compare Lille's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Lille

July in Lille presents a vibrant departure from the cooler months, marked by milder average temperatures and the occasional spike approaching 39°C (103°F) that can bring a taste of summer heat. With an average temperature hovering around 19°C (66°F), it’s a month where outdoor activities thrive, despite experiencing about 10 days of precipitation. The humidity remains high, at around 80%, adding a muggy feel to the warm summer days. Whether you're exploring the city's sights or indulging in al fresco dining, July’s weather offers a delightful backdrop. To learn more about how Lille's climate evolves throughout the year, visit Lille Climate.