Last updated: February 26, 2025
Experience the charm of Rennes, France in August, where the weather invites you to savor the vibrant summer atmosphere. With maximum temperatures soaring to a warm 35°C (96°F), the city offers plenty of sunshine for outdoor adventures. The average temperature hovers around a comfortable 19°C (66°F), while nights can be cooler, dipping to a refreshing 7°C (46°F). Expect moderate precipitation, with 53 mm (2.1 in) falling over 8 days, contributing to the lush, green surroundings. The humidity levels at 67% add a touch of moisture to the warm air, making the evenings perfect for leisurely strolls along the Seine. Embrace the diverse weather conditions that make August a unique time to explore Rennes!
In Rennes, France, August brings a delightful taste of summer, with temperatures typically ranging from a minimum of 7°C (46°F) to a pleasant average of 19°C (66°F) and peaking at around 35°C (96°F). This marks a transition from the hottest month of July, while still maintaining warmth that invites outdoor activities and exploration. As the month progresses, temperatures begin to gradually decline towards the cooler autumn months, yet August still shines as a vibrant and warm experience in Rennes, making it an ideal time for tourists and locals alike to enjoy the city's sights and summer events. The blend of warmth and moderate evenings creates a perfect backdrop for savoring the French culture and lifestyle before the seasonal shift.
August in Rennes, France, sees a moderate rainfall of 53 mm (2.1 in), with precipitation occurring on 8 days throughout the month. This aligns closely with the slightly drier July, which recorded 50 mm. August's precipitation hints at a gradual transition towards the wetter fall months, as the city prepares for September's average of 55 mm. Interestingly, while summer typically brings drier conditions, the consistent rain in both July and August suggests a shift in weather patterns, making late summer an unpredictable time for outdoor activities. Overall, Rennes' August experience balances warmth and occasional showers, inviting both sunseekers and rain-lovers alike.
In Rennes, France, August marks a slight uptick in humidity, reaching 67%, after a more comfortable July at 65%. This month not only signals a transition towards the wetter months ahead but also reflects a broader trend of decreasing humidity from January's peak of 88%. As summer wanes, humidity levels gradually begin to rise again, with September's average expected to return to 75%. Overall, while August offers a brief respite from the highest humidity levels seen earlier in the year, it sets the stage for the return of the more humid autumn months that follow.
In August, Rennes experiences a UV Index of 8, indicating a very high exposure category, with a burn time of just 15 minutes. This trend follows the peak summer months of June and July, where the UV Index reached its maximum level of 9. As the summer wanes into September, the UV Index drops to 6, signaling a shift to high exposure, but August remains a crucial month for sun safety. Given the intensity of UV radiation during this time, residents and visitors should take necessary precautions, such as wearing sunscreen and protective clothing. For more details on monthly UV trends, visit Rennes UV Index.
UV Risk Categories
In Rennes, France, August brings a delightful continuation of summer vibes, with the city basking in 383 hours of sunshine. This figure reflects a slight dip from the peak July hours of 414, yet it remains significantly higher than the earlier months of the year. As Rennes transitions from the lush blooms of spring, which enjoy 347 hours in April and 398 in May, to the more mellow twilight of autumn, August serves as a sun-drenched bridge. The trend of increasing daylight hours culminates in summer, making August not only the perfect time for outdoor festivals and sightseeing but a reminder of the vibrancy that Rennes offers before the days shorten again in September with 324 hours.
In Rennes, France, August showcases a 39% chance of sunny weather, making it a delightful yet somewhat unpredictable month for sun seekers. This figure reflects a modest decline from the sunnier conditions typically experienced in the late spring and early summer, particularly April's peak of 56%. Although it ranks relatively low compared to the earlier months such as March (48%) and April, August holds its own against the autumn months, with September and October both hovering around the 42% mark. Overall, while August may not boast the highest likelihood of sunshine, it still offers a pleasant mix of warmth and occasional sunny spells, perfect for enjoying the vibrant summer atmosphere in the city.
As summer wanes into August in Rennes, France, the city enjoys a generous 14 hours of daylight, marking a slight decline from the peak 15 hours experienced in June and July. This gradual transition signals the approach of autumn, as the days progressively shorten. In this beautiful month, residents and visitors alike can bask in the lingering sunlight, perfect for outdoor activities and soaking up the warmth before the daylight dwindles to 12 hours in September. Overall, the pattern showcases a compelling shift from the long, bright days of summer to the more subdued light of the fall months.
In Rennes, France, the August wind brings a gentle breeze, with an average wind speed of 3.4 m/s (8 mph). This marks a slight decline from the preceding months, as June experiences its lowest winds at 2.7 m/s (6 mph), while May peaks with a more robust 4.3 m/s (10 mph). Notably, the summer months of July and August maintain a consistent wind speed of 3.5 m/s and 3.4 m/s, respectively, suggesting a tranquil calmness ideal for enjoying the city's outdoor charm. As autumn approaches, the average speeds dip further to 3.0 m/s (7 mph) in September, indicating a seasonal lull before the winds pick up again in October. Thus, August in Rennes encapsulates a serene interlude, where mild winds complement the warm summer ambiance.
The weather in Rennes changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August'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.
In August, the weather is warm and variable, with temperatures ranging from a cool minimum of 7°C (46°F) to a sweltering maximum of 35°C (96°F). The average temperature hovers around 19°C (66°F), with humidity sitting at a comfortable 67% and slightly more precipitation of 53 mm (2.1 in) over 8 days. Conversely, January brings a stark contrast, with colder temperatures that drop to a minimum of -7°C (19°F) and a maximum of only 16°C (60°F), leading to an average of 6°C (43°F). The humidity is notably higher at 88%, and precipitation is slightly lower at 46 mm (1.8 in) spread over 9 days. For a more detailed look at January weather, check out Rennes weather in January.
August and February present quite contrasting weather patterns. In August, temperatures range from a minimum of 7°C (46°F) to a sizzling maximum of 35°C (96°F), with an average of 19°C (66°F). The month experiences relatively low precipitation at 53 mm (2.1 in) over about 8 days, combined with a moderate humidity level of 67%. In stark contrast, February's weather is much cooler, featuring a minimum temperature of -6°C (22°F) and a maximum of 21°C (69°F), with an average temperature of 7°C (45°F). February also sees more precipitation, totaling 60 mm (2.3 in) over 11 days, and a higher humidity level of 87%. For those interested in the specifics of February weather, you can check out Rennes weather in February.
August and March present contrasting weather patterns, showcasing the transition between summer and spring. In August, temperatures range from a minimum of 7°C (46°F) to a sweltering maximum of 35°C (96°F), with an average temperature of 19°C (66°F). Despite the warmer climate, precipitation occurs on about 8 days, with a total of 53 mm (2.1 in) of rain, and humidity levels around 67%.
In contrast, March is much cooler, with temperatures varying from a chilly minimum of -7°C (20°F) to a moderate maximum of 24°C (75°F), averaging 9°C (48°F). The month experiences slightly more precipitation, totaling 58 mm (2.3 in) over 12 days, and higher humidity at 84%. This comparison highlights the significant seasonal differences between the two months. For more detailed information, you can visit Rennes weather in March.
When comparing the weather in August and April, notable differences emerge. August typically offers warmer temperatures, ranging from a minimum of 7°C (46°F) to a maximum of 35°C (96°F), with an average of 19°C (66°F). In contrast, April is cooler, with temperatures varying from -2°C (28°F) to a comfortable 26°C (80°F), and an average of 11°C (52°F). Additionally, while August experiences slightly more precipitation at 53 mm (2.1 in) over about 8 days, April sees a similar level of rainfall at 48 mm (1.9 in) across 9 days, but with higher humidity at 83%. For more detailed information, you can check Rennes weather in April.
When comparing the weather in May and August, we see distinct differences in temperature and humidity. In August, temperatures range from a minimum of 7°C (46°F) to a maximum of 35°C (96°F), with an average of 19°C (66°F). In contrast, May experiences cooler temperatures, with lows around 0°C (32°F) and highs reaching 30°C (86°F), averaging 14°C (58°F). Precipitation is slightly higher in May at 67 mm (2.6 in) across 11 days compared to August's 53 mm (2.1 in) over 8 days. Additionally, May has a higher humidity level at 81% versus August’s 67%. For more detailed weather information in May, you can check Rennes weather in May.
In comparing the weather of August and June, we can observe a few notable differences. August generally features slightly warmer average temperatures, with a minimum of 7°C and a maximum of 35°C, while June has a minimum of 6°C and a similar maximum of 35°C. However, June experiences significantly higher precipitation levels, totaling 100 mm over 11 days compared to August's 53 mm over 8 days. Humidity is also higher in June at 75%, compared to 67% in August. For more detailed information, you can check Rennes weather in June.
In comparing the weather between July and August, we see some notable similarities and differences. Both months experience a minimum temperature of 7°C (46°F) and an average temperature of around 19°C (66°F), but July tends to be slightly warmer, with a maximum reaching 37°C (99°F) compared to August's 35°C (96°F). Precipitation levels are relatively close, with July receiving 50 mm (2.0 in) and August experiencing a bit more at 53 mm (2.1 in). Both months also see rain on about 8 days; however, August is characterized by a marginally higher humidity at 67%, compared to July's 65%. For more details on July’s climate, you can visit Rennes weather in July.
August tends to be warmer than September, with average temperatures in August reaching around 19°C (66°F), while September drops to an average of 16°C (62°F). The maximum temperature in August can soar up to 35°C (96°F), compared to September's peak of 32°C (90°F). Although both months experience a similar amount of precipitation—53 mm (2.1 in) in August and 55 mm (2.2 in) in September—September sees slightly higher humidity at 75%, compared to 67% in August. Additionally, September tends to have more rainy days, experiencing precipitation on 9 days compared to 8 days in August. For more detailed weather statistics, you can check Rennes weather in September.
August and October present distinctly different weather patterns. In August, temperatures range from a mild minimum of 7°C (46°F) to a maximum of 35°C (96°F), with an average of 19°C (66°F), offering warm summer days. The month sees relatively low precipitation, totaling 53 mm (2.1 in) over about 8 days, and a moderate humidity level of 67%.
In contrast, October brings cooler temperatures, with a minimum of 3°C (37°F), an average of 13°C (55°F), and a maximum of 24°C (76°F). The month is wetter, recording 88 mm (3.5 in) of rainfall over approximately 11 days, and a higher humidity level of 85%. This shift highlights the transition from summer warmth to autumn chill. For more detailed insights, check out Rennes weather in October.
August and November offer distinctly different weather experiences. In August, temperatures range from a mild 7°C (46°F) to a scorching 35°C (96°F), with an average of 19°C (66°F), making it one of the warmest months of the year. The humidity sits at a comfortable 67%, and precipitation is relatively low at 53 mm (2.1 in) over about 8 days. In contrast, November brings much cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 17°C (64°F), averaging only 8°C (48°F). This month features increased precipitation at 71 mm (2.8 in) over 11 days, paired with higher humidity levels at 88%. To learn more about the specifics of November weather, check out Rennes weather in November.
August and December present strikingly different weather patterns. In August, temperatures range from a mild 7°C (46°F) at their lowest to a scorching 35°C (96°F) at peak, with an average of 19°C (66°F). The month sees only 53 mm (2.1 in) of precipitation over about 8 days, coupled with a humidity level of 67%, making it a relatively warm and pleasant time of year. In contrast, December brings a dramatic drop in temperatures, with lows plummeting to -3°C (26°F) and highs only reaching 16°C (60°F), averaging around 7°C (46°F). Precipitation increases to 97 mm (3.8 in) over 15 days, and the humidity rises significantly to 90%, contributing to a much chillier and wetter atmosphere. For more details about the specifics of December weather, check Rennes weather in December.
August in Rennes brings a delightful warmth, marking a notable transition from the cooler months. With temperatures soaring to a maximum of 35°C (96°F) and an average of 19°C (66°F), this month stands out as one of the warmest, inviting locals and tourists alike to enjoy outdoor activities. While the minimum temperature dips to a cool 7°C (46°F), the days are predominantly pleasant. However, be prepared for occasional rain, as August experiences about 53 mm (2.1 in) of precipitation across 8 days, keeping the humidity at a comfortable 67%. This blend of warmth and mild moisture makes August a vibrant time to explore the charm of Rennes. For more details on weather patterns throughout the year, visit Rennes Climate.