April Weather in Rennes, France

Last updated: February 26, 2025

April in Rennes, France heralds a vibrant spring, with temperatures swinging from a comfortable maximum of 26°C (80°F) to a crisp minimum of -2°C (28°F), while the average settles at a refreshing 11°C (52°F). The month is characterized by a moderate precipitation level of 48 mm (1.9 in) spread over 9 days, adding a splash of life to the budding landscape. With a humidity of 83%, the air carries a noticeable freshness, perfect for those seeking a rejuvenating retreat amidst the beauty of blooming flora and outdoor charm. Embrace the dynamic weather of April as Rennes awakens from winter's slumber.

April Temperature in Rennes

In Rennes, France, April marks a significant transition into the warmth of spring. With temperatures ranging from a minimum of -2°C (28°F) to a pleasant maximum of 26°C (80°F), the month showcases a notable uplift in warmth compared to the chilly early months of the year. The average temperature rises to 11°C (52°F), indicating a gentle shift towards more enjoyable weather. As the days lengthen and the landscape bursts to life, residents and visitors alike can revel in the increasingly milder climate, paving the way for outdoor activities and local festivities. With this gradual ascent in temperatures, April in Rennes offers a glimpse of the vibrant summer that's just around the corner.

April Weather in Rennes: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Rennes, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434548525764676561554745
Data source: Temperature data for Rennes 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.

April Precipitation in Rennes

April in Rennes, France brings a moderate precipitation level of 48 mm (1.9 in), slightly lower than the preceding months, with rain falling on an average of 9 days. This pattern signifies a transition into spring, where the damp weather starts to balance with budding greenery. Notably, April's rainfall is less than that of both March and May, hinting at a brief respite before the wetter months ahead. As the city prepares for May, which typically sees a notable increase to 67 mm (2.6 in), the gentle April showers serve as a reminder of the shifting seasons, fostering the vibrant blooms and lush landscapes that define this time of year.

April Precipitation Trends in Rennes

The chart displays monthly precipitation patterns in Rennes, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec4660584867100505355887197
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Rennes

April in Rennes, France, marks the onset of a gradual decline in humidity, with levels averaging 83%. This slight dip from 84% in March indicates the transition toward drier spring conditions, a trend that continues into May with an expected 81% humidity. As the year progresses, there is a notable seasonal shift— while the winter months boast elevated humidity levels, peaking at 90% in December, the summer months usher in more comfortable readings, with July averaging just 65%. This pattern highlights a clear seasonal rhythm in Rennes, where the air begins to dry out as the city moves from the cooler, wetter months into sunnier, warmer days.

April Average Humidity in Rennes

This chart illustrates the average monthly humidity levels in Rennes, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%84%83%81%75%65%67%75%85%88%90%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Rennes

As spring unfolds in Rennes, France, April marks a notable increase in the UV Index, reaching 6—a shift from the moderate levels observed in previous months. With a high exposure category, this signifies that sun protection becomes essential, as the burn time decreases to just 25 minutes. Following a trend of rising UV levels, May escalates further to 8, highlighting the importance of monitoring UV exposure as outdoor activities become more popular. This progression from winter's low UV concerns to April's higher ratings suggests that residents and visitors alike should embrace sun safety measures to enjoy the outdoors responsibly. For more detailed information on UV levels throughout the year, check out Rennes UV Index.

Maximum UV Index Levels in Rennes for April

The chart shows the monthly maximum UV Index (UVI) for Rennes in April, 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689986422
Data source: Rennes April 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.

April Sunshine in Rennes

April in Rennes, France, heralds a remarkable transformation in sunshine hours, basking the city in 347 hours of vibrant sunlight. This is a significant leap from the earlier months, reflecting a steady increase that began with a mere 135 hours in January. The trend of increasing sunshine continues through April, bridging the wintry gloom of earlier months to the promise of May’s peak with 398 hours. This surge not only infuses the city with life and energy but also sets the stage for the long, sunlit days of summer, inviting locals and visitors alike to embrace the outdoor splendor of Rennes. As we transition further into the year, the shining path from April to May underscores the invaluable role of sunshine in uplifting spirits and enhancing the vibrancy of this enchanting French city.

Monthly Sunshine Duration in Rennes: April Highlighted

The April sunshine duration represents the total number of hours Rennes experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec135h200h283h347h398h387h414h383h324h262h218h185h
Data source: Rennes April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rennes During April

April marks a delightful transition into spring in Rennes, France, with a 56% chance of sunny weather that outshines previous months. This period witnesses a notable rise in sunshine compared to March's 48%, suggesting that the lingering chill of winter is finally giving way to brighter days. While May typically sees a dip to 34%, April stands out as the month when residents can optimistically embrace the sun's return, offering a perfect backdrop for blooming flowers and outdoor activities. As the year progresses, the likelihood of sunny days fluctuates, but April shines brightly, promising an invigorating atmosphere that invites exploration and enjoyment.

Percentage of Sunny Days in April in Rennes

The chart illustrates the percentage of sunny days in Rennes throughout the year, with April 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 Rennes experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec20%28%48%56%34%36%42%39%42%41%37%25%
Data source: Rennes April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rennes in April

As April unfolds in Rennes, France, the city basks in approximately 13 hours of daylight, marking a noticeable leap from the 11 hours seen in March. This increase in sunlight not only heralds the arrival of spring but also sets the stage for longer, brighter days ahead, with May promising an impressive 15 hours. This upward trend in daylight duration serves as a gentle reminder of the transition from winter's grip, illustrated by January's mere 8 hours, to the sun-drenched days of summer. As the days grow longer, residents and visitors alike are drawn outdoors, eager to embrace the vibrant energy that comes with the lengthening daylight and the blooming season.

Average Daylight Hours in Rennes for April

The chart illustrates the variation in daylight duration in Rennes throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec8h 52m10h 13m11h 56m13h 40m15h 10m15h 56m15h 32m14h 11m12h 31m10h 47m9h 14m8h 26m
Data source: Rennes daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Rennes

In April, Rennes experiences a gentle breeze with an average wind speed of 3.5 m/s (8 mph), marking a slight dip from the more blustery months of January and February. This transition reflects the city's gradual shift towards milder spring conditions. As warmer weather begins to settle in, April’s winds are often accompanied by the sweet scent of blooming flowers, creating a refreshing ambiance that entices locals and visitors alike to venture outdoors. Interestingly, this month’s wind speed is part of a trend where the spring months tend to exhibit moderate winds, before fluctuating again in the hotter summer months. With May picking up slightly at 4.3 m/s (10 mph), the wind will continue to dance through the streets of Rennes, heralding the arrival of vibrant summer days.

Average April Wind Speed in Rennes

The chart displays monthly wind speed patterns in Rennes, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.84.43.93.5 m/s4.32.73.53.43.03.63.14.2
Data source: Rennes April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Rennes Compares to Other Months

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

When comparing the weather in April and January, April tends to be notably milder. The average temperature in April is around 11°C (52°F), with highs reaching 26°C (80°F), while January has a lower average of 6°C (43°F) and a maximum of 16°C (60°F). Precipitation levels are similar, with April receiving about 48 mm (1.9 in) and January slightly less at 46 mm (1.8 in), both spread across 9 days. However, April's humidity is slightly lower at 83% compared to January's 88%, contributing to a more pleasant feel during the spring month. For more detailed information about January weather, you can visit Rennes weather in January.

April generally experiences milder temperatures compared to February, with a minimum of -2°C (28°F) and an average high of 26°C (80°F) compared to February's minimum of -6°C (22°F) and a maximum of 21°C (69°F). Additionally, April tends to be drier, with 48 mm of precipitation over 9 days, whereas February sees 60 mm across 11 days. Humidity levels are slightly lower in April at 83%, compared to February’s 87%. For further details, you can check Rennes weather in February.

April generally offers a milder and more variable climate compared to March. The minimum temperature rises from -7°C (20°F) in March to -2°C (28°F) in April, while the average temperature increases to 11°C (52°F), compared to 9°C (48°F) in March. Although April can see higher maximum temperatures reaching 26°C (80°F) compared to March’s maximum of 24°C (75°F), it experiences slightly less precipitation at 48 mm (1.9 in) over 9 days versus March’s 58 mm (2.3 in) over 12 days. Humidity levels remain relatively similar, with April at 83% and March at 84%. For more details, check out Rennes weather in March.

April and May exhibit a noticeable shift in weather patterns. April's temperatures range from a chilly minimum of -2°C (28°F) to a pleasant maximum of 26°C (80°F), with an average of 11°C (52°F) and relatively high humidity levels at 83%. The month experiences about 48 mm (1.9 in) of precipitation over 9 days. In contrast, May brings a gradual warming trend, with minimum temperatures rising to 0°C (32°F) and maximums reaching 30°C (86°F). The average temperature increases to 14°C (58°F), while humidity decreases slightly to 81%. However, May sees increased rainfall, totaling 67 mm (2.6 in) over 11 days. For more details on the weather in May, check out Rennes weather in May.

April and June exhibit notable differences in weather patterns. In April, temperatures range from a chilly minimum of -2°C (28°F) to a mild maximum of 26°C (80°F), accompanied by an average temperature of 11°C (52°F). This month sees approximately 48 mm (1.9 in) of precipitation over 9 days, with high humidity levels at 83%.

In contrast, June experiences warmer temperatures, with a minimum of 6°C (44°F), an average of 18°C (64°F), and a maximum reaching 35°C (95°F). Precipitation increases to 100 mm (3.9 in) over 11 days, while humidity decreases to 75%. The shift from April to June indicates a transition from cool spring conditions to the warm days of early summer. For more detailed weather insights, you can visit Rennes weather in June.

April and July present notably different weather patterns. In April, temperatures range from a chilly minimum of -2°C (28°F) to a pleasant maximum of 26°C (80°F), with an average of 11°C (52°F). The month sees about 48 mm (1.9 in) of precipitation over nine days and high humidity at 83%. In contrast, July offers a warmer climate with minimum temperatures of 7°C (46°F) and maximums reaching a scorching 37°C (99°F), averaging 19°C (67°F). Although July has slightly more precipitation at 50 mm (2.0 in) over eight days, its humidity is lower at 65%. For a closer look at July's weather specifics, you can check Rennes weather in July.

April and August present contrasting weather patterns. In April, temperatures can drop as low as -2°C (28°F), with an average of 11°C (52°F) and a maximum of 26°C (80°F), making it a month of significant variability. Precipitation is relatively frequent, occurring on 9 days, and humidity remains high at 83%. In contrast, August features milder temperatures, ranging from a minimum of 7°C (46°F) to a maximum of 35°C (96°F), with an average temperature of 19°C (66°F). While precipitation slightly increases to 53 mm (2.1 in), it happens over fewer days (8), and the humidity drops to a more comfortable 67%. For a deeper insight into August conditions, you can check Rennes weather in August.

April and September exhibit notable differences in weather patterns. In April, temperatures range from a chilly minimum of -2°C (28°F) to a pleasant average of 11°C (52°F), peaking at a warm 26°C (80°F). The month experiences around 48 mm (1.9 in) of precipitation over about 9 days, with humidity levels averaging 83%, creating a cool and damp atmosphere. In contrast, September brings milder conditions, with minimum temperatures starting at 5°C (41°F), an average of 16°C (62°F), and a maximum reaching 32°C (90°F). Although September sees slightly more precipitation at 55 mm (2.2 in) over the same number of days, the humidity drops to 75%, providing a more comfortable feel. For more details on the September climate, check out Rennes weather in September.

April and October present quite distinct weather patterns. In April, temperatures range from a brisk minimum of -2°C (28°F) to a pleasant maximum of 26°C (80°F), averaging around 11°C (52°F). The month sees about 48 mm (1.9 in) of precipitation over approximately 9 days, with a humidity level of 83%. In contrast, October starts with slightly milder temperatures, with minimums around 3°C (37°F) and maximums reaching 24°C (76°F), averaging 13°C (55°F). However, it experiences more rainfall, totaling about 88 mm (3.5 in) over 11 days, with humidity levels rising to 85%. For a more detailed look at October's weather, you can check Rennes weather in October.

April and November showcase distinct weather patterns, with April generally warmer and more variable. In April, temperatures can range from a chilly -2°C (28°F) to a pleasant 26°C (80°F), averaging around 11°C (52°F). The month also sees about 48 mm (1.9 in) of precipitation over nine days and an average humidity of 83%. Conversely, November tends to be cooler, with temperatures ranging from -1°C (30°F) to a maximum of 17°C (64°F), and an average temperature of 8°C (48°F). Precipitation increases to 71 mm (2.8 in) across 11 days, along with slightly higher humidity at 88%. For more specific insights into November's climate, you can explore Rennes weather in November.

April and December exhibit distinct weather patterns characterized by varying temperatures and precipitation levels. In April, temperatures range from a minimum of -2°C (28°F) to a maximum of 26°C (80°F), with an average of 11°C (52°F). The month sees about 48 mm (1.9 in) of precipitation over 9 days, accompanied by a humidity level of 83%. In contrast, December experiences cooler conditions, with temperatures dipping slightly lower, from -3°C (26°F) to a maximum of 16°C (60°F), and an average temperature of 7°C (46°F). This month also faces more substantial rainfall, totaling 97 mm (3.8 in) over 15 days, and a higher humidity of 90%. For a more detailed view, check out Rennes weather in December.

Compare Rennes's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Rennes

As April unfolds in Rennes, the transition from the chilly grasp of winter to the mild embrace of spring is palpable. While temperatures can reach a pleasant 26°C (80°F), the average remains around a comfortable 11°C (52°F), making it a month of refreshing change. However, it's not without its rain, with 9 days of precipitation bringing a total of 48 mm (1.9 in). The higher humidity at 83% adds to the month’s vibrant, blossoming atmosphere, setting it apart from the colder winter months. To explore the year-round climate dynamics of this charming city, visit Rennes Climate.