July Weather in Nantes, France

Last updated: February 26, 2025

Experience the vibrant weather of Nantes, France in July, where temperatures can soar to a maximum of 38°C (100°F), providing plenty of sunshine for outdoor activities. The average temperature hovers around 20°C (69°F), offering a pleasant atmosphere for exploring the city. While warm days are the highlight, the month also sees a minimum temperature of 9°C (48°F) during cooler evenings. July brings a moderate precipitation amount of 36 mm (1.4 in) over about 7 days, with humidity levels at a comfortable 65%. Whether you're wandering through historic sites or enjoying the lush landscapes, the summer weather in Nantes sets the perfect backdrop for an unforgettable experience.

July Temperature in Nantes

In July, Nantes experiences its warmest days of the year, with temperatures soaring to a maximum of 38°C (100°F), reflecting a significant increase from the cooler months. The average temperature settles at a pleasant 20°C (69°F), perfect for enjoying the city's vibrant outdoor life. Evenings are mild, with minimum temperatures around 9°C (48°F), allowing for comfortable nights under the stars. This blend of warmth and summer festivities invites locals and visitors alike to savor everything from riverside picnics to bustling markets, highlighting Nantes as a delightful summer destination.

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

The chart illustrates July temperature patterns in Nantes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434548535965686763564846
Data source: Temperature data for Nantes generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

July Precipitation in Nantes

In July, Nantes experiences a notable dip in precipitation, totaling 36 mm (1.4 in), marking it as one of the driest months of the year. This is a significant decrease from the wetter months preceding it, particularly June, which saw 84 mm (3.3 in) over 11 days. With only 7 days of rainfall in July, residents can often enjoy the sunshine, making it a favored time for outdoor activities. The trend of decreasing rainfall continues into August, which brings a slight increase to 42 mm (1.7 in), but the overall summer atmosphere remains relatively dry compared to the rest of the year. Thus, July stands out as a transitional month, balancing between the lush, rain-soaked spring and the warm, drier days of late summer.

July Precipitation Trends in Nantes

The chart displays monthly precipitation patterns in Nantes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5166715164843642458379107
Data source: Precipitation data for July generated using information from the Copernicus Climate Change Service.
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July Humidity in Nantes

In Nantes, France, July brings a refreshing drop in humidity, settling at a moderate 65%. This trend reflects the city's gradual transition from the damp chill of winter, where humidity hovers around a high of 88% in January, to the sunnier and drier summer months. Notably, July is the month with the lowest humidity level, suggesting a more comfortable atmosphere for outdoor activities compared to the wetter months preceding it, particularly June at 75%. As summer peaks in August, humidity slightly rises to 67%, but it remains pleasantly lower than the earlier months of the year, offering a respite from the flock of heavy, moisture-laden air typical of Nantes's Autumn and Winter months.

July Average Humidity in Nantes

This chart illustrates the average monthly humidity levels in Nantes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%84%83%81%75%65%67%75%85%88%90%
Data source: Humidity data for July generated using information from the Copernicus Climate Change Service.

July UV Index in Nantes

In July, Nantes experiences a UV Index of 9, marking it as a time of very high solar exposure, with a burn time of just 15 minutes. This trend underscores the peak of summer when the sun's rays are at their most intense, similar to June's readings. Notably, the UV Index has increased steadily from the lower levels observed in the earlier months of the year—rising from a low of 2 in January to a significant spike in May and June. As August approaches, the UV Index begins to drop to 8, suggesting that while summer remains strong, the intensity of sunlight will gradually decrease. Visitors and residents alike should take precautions during this period to protect their skin. For more detailed information on UV levels throughout the year, check Nantes UV Index.

Maximum UV Index Levels in Nantes for July

The chart shows the monthly maximum UV Index (UVI) for Nantes 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986522
Data source: Nantes 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 Nantes

July in Nantes, France, shines brightly with 418 hours of glorious sunshine, making it the sunniest month of the year. This peak of light follows a steady climb from 139 hours in January to a significant 398 hours in June, showcasing a gradual increase that invites locals and visitors alike to bask in the warmth of summer days. As the vibrant season unfolds, August slightly trails July with 395 hours of sunlight, while September begins to usher in cooler days with a notable decline to 331 hours. The pattern reflects a seasonal rhythm where the long days of summer provide a radiant backdrop for outdoor activities, before gradually giving way to the softer light of autumn.

Monthly Sunshine Duration in Nantes: July Highlighted

The July sunshine duration represents the total number of hours Nantes 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.
JanFebMarAprMayJunJulAugSepOctNovDec139h208h291h350h394h398h418h395h331h274h227h193h
Data source: Nantes July Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Nantes During July

In Nantes, France, the likelihood of sunny weather experiences an intriguing pattern as the year progresses. In July, the chance of sunshine stands at 42%, marking a slight decrease from the more promising 58% in April. This temporary dip in sunlit conditions is evident in the warm summer months, as August and September both hover around 44% and 46%, respectively. Interestingly, this trend indicates that while July isn't the sunniest month of the year, it still offers a decent chance of basking in the sun, particularly when compared to the winter months, which showcase a mere 19% to 30% chance of sunshine. As Nantes transitions from spring to summer, residents and visitors can anticipate a mix of delightful sunny days interspersed with occasional cloud cover, setting the stage for enjoyable outdoor activities.

Percentage of Sunny Days in July in Nantes

The chart illustrates the percentage of sunny days in Nantes 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 Nantes experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec19%29%47%58%35%40%42%44%46%46%40%30%
Data source: Nantes July chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Nantes in July

In Nantes, France, July marks a peak in daylight duration, offering a generous 15 hours of sunlight that aligns perfectly with the vibrant summer season. This enduring brilliance follows a steady increase from the winter months, starting with a mere 8 hours in January and blossoming to a bright 15 hours by June and July. The trend showcases a gradual lengthening of days as spring progresses, peaking in the heart of summer before a slow decline begins in August, dropping to 14 hours. This rhythm of daylight not only enriches the beauty of the city but also invites residents and visitors alike to revel in outdoor activities and the captivating charm of long summer evenings.

Average Daylight Hours in Nantes for July

The chart illustrates the variation in daylight duration in Nantes throughout the year, with July highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 57m10h 17m11h 56m13h 38m15h 5m15h 50m15h 26m14h 8m12h 30m10h 49m9h 19m8h 32m
Data source: Nantes daylight hours, calculated by summing the hours between sunrise and sunset for each day.

July Winds in Nantes

In July, Nantes experiences a gentle average wind speed of 3.8 m/s (9 mph), a slight increase from the calmness of June, which recorded its lowest winds of the year at 2.8 m/s (6 mph). This subtle uptick hints at the arrival of summer breezes, providing just enough refreshment as temperatures rise. Interestingly, this mid-summer wind speed is comparable to the more dynamic winds of January and May, which are both around 4.1 m/s (9 mph) and 4.6 m/s (10 mph) respectively. Overall, July's winds maintain a pleasing balance, offering a serene atmosphere for outdoor activities while signaling a relaxed yet lively summer vibe in this charming French city.

Average July Wind Speed in Nantes

The chart displays monthly wind speed patterns in Nantes, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.14.73.94.04.62.83.8 m/s3.73.33.73.44.6
Data source: Nantes July wind data, generated using information from the Copernicus Climate Change Service.

How July Weather in Nantes Compares to Other Months

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

In July, the weather in Nantes is warm and dynamic, with average temperatures soaring to around 20°C (69°F) and highs reaching up to 38°C (100°F). Despite this warmth, July experiences relatively low precipitation, totaling 36 mm (1.4 in) over about 7 days, and humidity levels are manageable at 65%. In stark contrast, January presents a much colder climate, where the average temperature hovers around 6°C (43°F) with lows dipping to -7°C (20°F). This month receives slightly more precipitation, with 50 mm (2.0 in) falling over 9 days, and higher humidity levels at 88%. For more details, check out Nantes weather in January.

In comparing the weather between July and February, it's clear that they present stark contrasts. July features warmer temperatures, with a minimum of 9°C (48°F), an average of 20°C (69°F), and reaching a maximum of 38°C (100°F). While precipitation is relatively low at 36 mm (1.4 in) over 7 days, humidity remains moderate at 65%. In contrast, February is much cooler, with temperatures ranging from a minimum of -6°C (21°F) to a maximum of 22°C (71°F) and a milder average of 7°C (46°F). February experiences higher precipitation levels at 66 mm (2.6 in) spread across 13 days, along with increased humidity at 87%. For more information on February weather specifics, you can check Nantes weather in February.

When comparing the weather in July and March, it's clear that these two months exhibit distinct climatic characteristics. July boasts a much warmer temperature range, with minimums of 9°C (48°F) and maximums reaching up to 38°C (100°F), leading to an average temperature of 20°C (69°F). In contrast, March experiences significantly cooler temperatures, with minimums dropping to -8°C (19°F) and average temperatures of only 9°C (49°F).

In terms of precipitation, July has 36 mm (1.4 in) of rain spread over 7 days, while March is wetter, receiving 71 mm (2.8 in) of rain across 13 days. Additionally, humidity levels also differ, with July presenting a moderate 65%, compared to March's higher level of 84%. For a more detailed overview of March weather specifics, you can refer to Nantes weather in March.

In comparing the weather of July and April, we see a striking contrast in temperatures and humidity levels. July boasts a range from a cool minimum of 9°C (48°F) to a scorching maximum of 38°C (100°F), with an average temperature of 20°C (69°F). In contrast, April's temperatures start significantly lower, with a minimum of -3°C (27°F) and a maximum of 27°C (80°F), yielding a more temperate average of 12°C (53°F). While July experiences less precipitation, with only 36 mm (1.4 in) over 7 days, April receives more rainfall at 51 mm (2.0 in) across 8 days, resulting in higher humidity levels of 83% during the spring month compared to July's 65%. For more detailed information, check out Nantes weather in April.

In July, the weather in Nantes is generally warmer and drier compared to May. Average temperatures rise significantly, with July boasting a range from a minimum of 9°C (48°F) to a maximum of 38°C (100°F), leading to a pleasant average of 20°C (69°F). In contrast, May experiences a cooler climate with temperatures ranging from 1°C (34°F) to a maximum of 31°C (88°F) and an average of 15°C (59°F). May also sees more precipitation, with 64 mm (2.5 in) over 11 days, while July has only 36 mm (1.4 in) across 7 days. Additionally, humidity levels are higher in May at 81%, compared to July's 65%. For more detailed information, check out Nantes weather in May.

In comparing the weather between June and July, July tends to be slightly warmer, with average temperatures rising to 20°C (69°F) from June's 18°C (65°F). The maximum temperature in July also peaks at 38°C (100°F), which is marginally higher than June's maximum of 37°C (98°F). However, July experiences less rainfall, accumulating only 36 mm (1.4 in) over 7 days compared to June's 84 mm (3.3 in) across 11 days. Humidity levels are slightly lower in July at 65%, whereas June has a higher humidity at 75%. For more details on June weather, check out Nantes weather in June.

In comparing the weather of July and August, both months exhibit high maximum temperatures that can reach up to 38°C (100°F), but August tends to be slightly cooler overall, with an average temperature of 19°C (67°F), compared to July's 20°C (69°F). Precipitation levels also increase in August to 42 mm (1.7 in), compared to July's 36 mm (1.4 in), while humidity rises marginally from 65% in July to 67% in August. For more detailed insights on August weather, check out Nantes weather in August.

In July, the weather typically features a significant temperature range, with minimums around 9°C (48°F) and maximums soaring up to 38°C (100°F), resulting in an average temperature of 20°C (69°F). The month sees a moderate level of precipitation at 36 mm (1.4 in) over about 7 days, coupled with humidity levels around 65%. Conversely, September experiences cooler temperatures, with minimums dipping to 5°C (41°F) and average highs of 34°C (93°F), averaging 17°C (63°F). Precipitation increases slightly to 45 mm (1.8 in) over 8 days, and humidity rises to 75%. For more detailed information on September weather, you can check Nantes weather in September.

In July, the weather tends to be much warmer, with temperatures ranging from a minimum of 9°C (48°F) to a high of 38°C (100°F) and an average of 20°C (69°F). The month experiences relatively low precipitation at 36 mm (1.4 in) across about 7 days, accompanied by a moderate humidity level of 65%. In stark contrast, October brings cooler conditions, with temperatures ranging from a chilly 2°C (35°F) to a maximum of 26°C (79°F) and an average of 13°C (56°F). Rainfall significantly increases, totaling 83 mm (3.3 in) over approximately 11 days, and humidity rises to 85%. For more detailed insights, you can check out Nantes weather in October.

In July, the weather is characterized by a wide temperature range, with minimums around 9°C (48°F) and maximums soaring up to 38°C (100°F), averaging a comfortable 20°C (69°F). The month experiences relatively low precipitation, totaling 36 mm (1.4 in) over about 7 days, and humidity hovers around 65%. In contrast, November brings much cooler temperatures, with minimums dipping to -3°C (26°F) and maximums reaching 19°C (66°F), averaging only 9°C (48°F). Precipitation significantly increases to 79 mm (3.1 in) over approximately 11 days, coupled with a higher humidity level of 88%. This stark contrast highlights the shift from warm, dry conditions in July to the colder, wetter climate of November. For more details, you can check the Nantes weather in November.

The weather in July and December presents a stark contrast. July boasts a wide temperature range, with minimums around 9°C (48°F) and maximums reaching up to 38°C (100°F) while averaging 20°C (69°F). With only 36 mm (1.4 in) of precipitation over about 7 days, the humidity stands at a moderate 65%, making it generally warm and pleasant. In contrast, December experiences much colder conditions, with temperatures dipping as low as -3°C (27°F) and averaging around 8°C (46°F). The maximum temperature reaches only 17°C (62°F), and precipitation is significantly higher at 107 mm (4.2 in) over about 15 days, accompanied by a high humidity level of 90%. For more details on December weather, you can check Nantes weather in December.

Compare Nantes's Climate with Cities Worldwide

Conclusion: What to Expect From July Weather in Nantes

In July, Nantes embraces the warmth of summer, contrasting sharply with the cooler months of the year. With temperatures soaring to a maximum of 38°C (100°F) and an average of about 20°C (69°F), the city becomes a vibrant hub for outdoor activities and events. While there's still a touch of rain, with approximately 36 mm falling over about 7 days, the overall humidity level rests comfortably around 65%, creating a balmy atmosphere. This combination of warmth and manageable rainfall makes July a delightful month to explore all that Nantes has to offer. For a deeper dive into what you can expect throughout the year, check out the detailed information available at Nantes Climate.