Last updated: February 26, 2025
In August, the charming city of Grenoble, France experiences a delightful blend of summer warmth and occasional rainfall. With maximum temperatures reaching up to 32°C (90°F) and an average of 18°C (65°F), visitors can enjoy ample sunny days to explore the picturesque surroundings. However, it's essential to be prepared for the 12 days of precipitation that contribute to a total of 103 mm (4.1 in) of rainfall throughout the month. The humidity level averages around 63%, adding a touch of Mediterranean warmth to the alpine ambience. Whether basking in the sun or navigating through light rain, August in Grenoble offers a vibrant atmosphere that captivates every traveler.
In August, Grenoble experiences a delightful blend of warmth and coolness, marking the height of summer. Temperatures typically range from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), with an average of around 18°C (65°F). This month showcases a vibrant contrast to the frigid winter months, as the city enjoys long, sunny days perfect for outdoor activities. The trend continues from July, where a similar range was recorded, but with slightly tempered temperatures. As summer transitions into early autumn, August serves as a fascinating snapshot of Grenoble's climate, offering pleasant warmth during the day while hinting at the cooler days of fall to come.
August in Grenoble, France, typically experiences a moderate level of precipitation, with precipitation averaging 103 mm (4.1 in) over approximately 12 rainy days. This marks a slight decrease from the wetter months preceding it, particularly May (174 mm) and June (149 mm), suggesting a gradual transition towards drier autumn conditions. Although the rainfall in August is lower than the summer peak, it maintains a consistent trend seen in earlier months, where rainfall remains abundant yet not overwhelming. This balance provides a pleasant ambiance for summer activities, while still hinting at the wetter months ahead as the year draws to a close.
In August, Grenoble, France, experiences a notable dip in humidity, with levels falling to 63%. This marks the lowest point of the year, showcasing a refreshing contrast to the higher humidity levels found in the winter months. As the year progresses, humidity steadily declines from 91% in January to 72% in July, reflecting a transition into the warmer summer season. August's low humidity not only enhances outdoor comfort but also sets the stage for the subsequent rise in moisture levels as autumn approaches, with September seeing a slight increase to 73%. This trend highlights the distinct seasonal shifts that define the region's climate.
In August, Grenoble experiences a UV Index of 9, categorizing it as very high with a burn time of just 15 minutes. This peak in UV levels follows the summer months of June and July, which also recorded a UV Index of 10. Interestingly, the trend shows a gradual increase from a low of 2 in January to an impressive 9 in late summer, a testament to the region's sunny disposition during these months. As September approaches, the UV Index drops to 7, indicating that while summer is winding down, the sun remains a potential hazard. For those planning to bask in the sun's rays this August, it's essential to take precautions—check the detailed forecast at Grenoble UV Index.
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In August, Grenoble basks in a delightful 398 hours of sunshine, continuing the warm glow initiated by the summer months. Following the peak of 427 hours in July, the sun remains generous, ensuring that locals and visitors alike can savor the beauty of the Alps under a radiant sky. This trend of increasing sunlight through spring, peaking during the summer, highlights Grenoble's allure as a summer destination. As the seasons shift towards autumn, the sunlight gradually dips, wrapping up months of vibrant outdoor activities. August's sunshine serves as a beautiful reminder of the warmth that precedes the cooler, atmospheric hues of autumn.
In August, Grenoble enjoys a notable chance of sunny weather, with 48% likelihood of sunshine. This marks a significant increase compared to the earlier summer months, where percentages hovered around the mid-30s to low 40s. Such a trend indicates that the city is moving into a period of warmer, clearer days, which many residents and visitors look forward to before the arrival of early autumn. As the summer progresses, the opportunity for sunny skies becomes increasingly favorable, making August an appealing time for outdoor activities and exploration in this picturesque alpine setting.
In August, Grenoble basks in a pleasant 13 hours of daylight, reflecting the height of summer as the days gradually begin to shorten. This month marks a subtle transition from the 15 hours of daylight experienced in both June and July, signaling the impending shift towards autumn. The trend throughout the year reveals a steady increase in daylight duration from the 9 hours in January to a peak in summer, followed by a gentle decline as the months progress. As summer wanes and September approaches, daylight decreases to 12 hours, highlighting the cyclical nature of the seasons in this picturesque French city.
In August, Grenoble experiences a notable consistency in its wind patterns, with an average wind speed remaining steady at 1.5 m/s (3 mph). This slight breeze is reflective of the summer's calming influence, contrasting with the increased speed observed in the spring months of April and May, where winds pick up to 1.6 m/s (4 mph). However, as summer wanes into autumn, the winds begin to mellow, dipping to 1.2 m/s (3 mph) in September. Overall, the gentle winds of August provide a perfect backdrop for enjoying the city's warm, sunny days, seamlessly transitioning into the cooler, crisper air of fall.
The weather in Grenoble 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 Grenoble and find detailed weather information for every month.
August and January present stark contrasts in weather. August typically enjoys a wide temperature range, with minimums around 6°C (43°F) and maximums reaching 32°C (90°F), creating a warm average of 18°C (65°F). In contrast, January experiences much colder conditions, with temperatures plummeting to a minimum of -21°C (-6°F) and only rising to a maximum of 12°C (55°F), averaging around -1°C (31°F). While August sees 103 mm (4.1 in) of precipitation over 12 days with a humidity level of 63%, January, with 118 mm (4.6 in) of precipitation across just 11 days, has a much higher humidity of 91%. For a more detailed look at January's weather, you can visit Grenoble weather in January.
August and February exhibit strikingly different weather patterns. In August, temperatures range from a mild 6°C (43°F) at night to a warm 32°C (90°F) during the day, with an average of 18°C (65°F). The month sees about 103 mm (4.1 in) of rainfall over 12 days, coupled with a moderate humidity of 63%. In contrast, February brings much colder conditions, with temperatures plummeting to a minimum of -12°C (11°F) and reaching a maximum of 17°C (63°F), averaging just 3°C (37°F). Precipitation remains similar, at 107 mm (4.2 in) over 11 days, but the humidity is notably higher at 87%. For a more detailed look at February's climate, check out Grenoble weather in February.
When comparing the weather in August and March, it's clear that August tends to be much warmer and drier. In August, temperatures range from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), with an average of 18°C (65°F). In contrast, March experiences colder temperatures, with a minimum of -14°C (7°F) and a maximum of 19°C (67°F), averaging just 5°C (41°F).
Precipitation also varies, with August receiving 103 mm (4.1 in) over 12 days, while March has higher precipitation at 134 mm (5.3 in) across 14 days. Additionally, March has a higher humidity level at 84%, compared to August's 63%. For more detailed insights, you can check Grenoble weather in March.
When comparing the weather in August and April, it's clear that August tends to be significantly warmer. In August, temperatures range from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), with an average of 18°C (65°F). In contrast, April experiences cooler temperatures, with a minimum of -7°C (20°F), an average of 8°C (47°F), and a maximum of 23°C (73°F). Additionally, August receives more precipitation, totaling 103 mm (4.1 in) over approximately 12 days, whereas April has 82 mm (3.2 in) across 11 days. Another notable difference is humidity, which is higher in April at 83%, compared to 63% in August. For more details, you can check this Grenoble weather in April.
In comparing the weather of May and August, it's clear that August offers warmer temperatures, with averages reaching a comfortable 18°C (65°F) and highs of up to 32°C (90°F). In contrast, May experiences cooler conditions, with average temperatures around 12°C (53°F) and a maximum of 27°C (80°F). Precipitation also differs between the two months: May sees significantly more rainfall, totaling 174 mm (6.9 in) over 18 days compared to August's 103 mm (4.1 in) over 12 days. Additionally, humidity levels are higher in May at 78% compared to August's 63%. For more detailed insights, check out Grenoble weather in May.
When comparing the weather in June and August, both months experience warm maximum temperatures around 32°C (89°F to 90°F), but August tends to have slightly higher average and minimum temperatures, with averages around 18°C (65°F) and a minimum of 6°C (43°F) compared to June's 17°C (62°F) and 4°C (40°F). Precipitation is more pronounced in June, with 149 mm (5.9 in) falling over 16 days, while August sees less rain at 103 mm (4.1 in) over 12 days. Additionally, humidity levels are higher in June at 75%, compared to August's 63%, making June feel more humid overall. For a detailed look at the climate in June, check out Grenoble weather in June.
In comparing the weather patterns of August and July, both months exhibit similar average temperatures, with August averaging 18°C (65°F) and July slightly warmer at 18°C (66°F). However, August experiences a broader range of temperatures, with a minimum of 6°C (43°F) and a maximum of 32°C (90°F), whereas July's extremes are 7°C (45°F) and 33°C (92°F). Precipitation levels are quite similar, with July receiving 110 mm (4.3 in) compared to August's 103 mm (4.1 in), both spread over approximately 12 days. Notably, humidity tends to be higher in July at 72% compared to 63% in August. For a more detailed look at July weather in this region, check out Grenoble weather in July.
August and September present noticeable shifts in weather patterns. August maintains a warm atmosphere with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), embodying the peak of summer with a significant average temperature of 18°C (65°F). In contrast, September experiences cooler conditions with temperatures dipping to a minimum of -2°C (28°F) and averaging 14°C (58°F), although it still reaches a pleasant maximum of 27°C (81°F). Regarding precipitation, August sees higher totals at 103 mm (4.1 in) across 12 days, while September has a lighter rainfall of 81 mm (3.2 in) over 10 days. Humidity also rises slightly from 63% in August to 73% in September, contributing to a more pronounced autumnal feel. For more detailed information, you can check Grenoble weather in September.
August and October exhibit notable differences in weather patterns, with August generally being warmer and drier. In August, temperatures range from a minimum of 6°C (43°F) to a maximum of 32°C (90°F), accompanied by an average temperature of 18°C (65°F). The month sees about 103 mm (4.1 in) of rainfall over 12 days, with humidity levels at 63%. In contrast, October experiences cooler temperatures with a minimum of -2°C (29°F) and a maximum of 23°C (73°F); the average temperature drops to 10°C (50°F). Precipitation increases slightly to 120 mm (4.7 in) over 11 days, and humidity rises significantly to 89%. Overall, while August offers warm conditions ideal for outdoor activities, October ushers in the chill of autumn, making it a time for cozy indoor pursuits. For more insights, you can check Grenoble weather in October.
August and November present a stark contrast in weather patterns. In August, temperatures typically range from a mild minimum of 6°C (43°F) to a warm maximum of 32°C (90°F), with an average of 18°C (65°F). The month sees about 103 mm (4.1 in) of precipitation over 12 days, coupled with a moderate humidity of 63%. In contrast, November brings significantly cooler temperatures, with a minimum of -8°C (18°F) and an average of just 4°C (39°F), while still peaking at 18°C (65°F). Precipitation increases slightly to 119 mm (4.7 in) spread over 13 days, and humidity rises to a notable 90%. For more details, you can check out the Grenoble weather in November.
August and December present strikingly contrasting weather patterns. In August, temperatures range from a mild 6°C (43°F) at night to a warm 32°C (90°F) during the day, with an average of 18°C (65°F). Humidity is moderate at 63%, and the month experiences around 103 mm (4.1 in) of precipitation over roughly 12 days. In contrast, December brings much colder temperatures, with a minimum of -15°C (6°F) and a maximum of 12°C (54°F), averaging just 1°C (33°F). The winter month is also significantly wetter, receiving 229 mm (9.0 in) of precipitation over approximately 18 days, coupled with high humidity at 90%. For more detailed insights, check out Grenoble weather in December.
August in Grenoble offers a warm and vibrant atmosphere, with temperatures reaching their peak, creating a stark contrast to the cooler months that precede it. This month sees an average temperature that invites outdoor adventures, but also brings along notable humidity and occasional rain, with about 12 days of precipitation scattered throughout. The combination of warmth and moisture can make the weather feel quite tropical compared to the crispness of spring and fall. For those planning a visit, August serves up a distinctive blend of sun-soaked days and refreshing, albeit humid, evenings—perfect for enjoying all that Grenoble has to offer. To learn more about Grenobl’s weather throughout the year, visit Grenoble Climate.