Weather in Grenoble

Stay up to date with the latest weather conditions in Grenoble. In this section, you will find current data, forecasts, and useful weather charts.

The climate in Grenoble, located in France, can be described as temperate, with four distinct seasons. The city experiences noticeable temperature fluctuations throughout the year, allowing tourists to plan their trip according to their preferred weather conditions.

Winters in Grenoble (December-February) are quite cool, with average temperatures around 1-3°C; night-time temperatures often drop below freezing, while daytime highs rarely rise above 5-8°C. Summers (June-August), on the other hand, are warm and quite sunny, with average temperatures hovering around 17-20°C and maximum values reaching a comfortable 22-25°C. Spring and autumn are pleasant transitional periods with gradual temperature changes, offering mild weather for walks and exploration.

Regarding precipitation, in Grenoble it is distributed fairly evenly throughout the year, without a distinct rainy season, while the total amount is low (averaging 3-6 mm per month). However, it is worth noting the number of days with precipitation: it can be quite high, especially in May (about 19 days) and December (about 17 days), suggesting frequent but perhaps not overly intense rainfall. July and August stand out as the months with the fewest rainy days (about 11 days), making them the driest period of the year.

The climate in Grenoble is characterized by pronounced seasonal temperature changes. The hottest months are typically July and August, when the average daytime temperature holds around 19.5°C, and maximum values can reach 24-25°C. Summer nights bring a pleasant coolness, with temperatures around 14°C. The coldest months are January and December. At this time, the average temperature fluctuates around 1-2°C, with night frosts being not uncommon, and the thermometer can drop to -2°C. Daytime highs in winter usually do not exceed 5-7°C.

The summer period in Grenoble can be described as pleasantly warm. Daytime heat is usually not exhausting, and the evenings and nights are refreshing. The difference between daytime highs and night-time lows in summer is quite perceptible, at around 10°C, ensuring comfortable sleep. Winters in Grenoble are cool, with frequent sub-zero temperatures at night, especially in January. During the day, the temperature usually stays above freezing but remains low. Temperature fluctuations between day and night in winter are less pronounced than in summer but still noticeable, at approximately 7-8°C.

Spring and autumn in Grenoble are transitional seasons with gradual temperature changes. In April, the average temperature is around 8.5°C, and in October – around 11.4°C. During these periods, noticeable daily temperature fluctuations are also observed, where daytime warmth gives way to cool evenings. For example, in April, the difference between the average maximum (13.9°C) and minimum (3.1°C) temperature is more than 10 degrees.

In Grenoble, precipitation is distributed quite unevenly throughout the year, although without a clearly defined season of torrential rains. The city is characterized by frequent, but usually not very heavy precipitation. The highest number of wet days falls in May (on average 19 days) and December (17 days), indicating a high probability of encountering precipitation during these periods. The lowest number of rainy or snowy days is observed in July and August – about 11 days in each month.

Regarding the total volume of precipitation, the wettest month in Grenoble is December, when about 6 mm falls, followed by May with 5 mm. The driest months are considered to be February, April, July, and August, with a figure of just 3 mm. In winter, especially in December and January, when average temperatures drop to 1.2°C - 1.7°C, and minimums can reach negative values (down to -2.2°C), precipitation often falls as snow. Snowfall is also possible in February, although temperatures are already slightly higher.

In spring, precipitation patterns change gradually. March and April have a similar number of wet days (14 days) and a moderate amount of precipitation (4 mm and 3 mm respectively), mostly in the form of rain. May stands out as the "wettest" month in terms of the number of days with precipitation, although the intensity remains low. Summer, especially July and August, brings the driest weather with the least amount of precipitation and rainy days, making this period more predictable for outdoor activities. In autumn, from September to November, the amount of precipitation (4 mm per month) and wet days (12-14 days) increases moderately again, preparing the city for the winter season.

When planning a trip to Grenoble, it is important to consider the changeable weather and be prepared for various conditions throughout the year. The key principle when packing your suitcase is layering. Regardless of the season, comfortable shoes for walking around the city and its surroundings will be useful. Given the high number of days with precipitation throughout the year, even with low volumes, a compact umbrella or a light waterproof jacket will become your faithful companions. Don't forget an adapter for electrical appliances if necessary.

For visits to Grenoble from late autumn to early spring (November to March), when average temperatures range from 1°C to 5°C and night-time temperatures can drop below freezing, be sure to pack warm clothing. You will need sweaters, fleece tops, warm trousers, a winter jacket (preferably windproof and waterproof), as well as a hat, a scarf, and gloves. Precipitation is also frequent during these months, so waterproof footwear will be very handy. Even in April and October, when it is warmer during the day, evenings can be cool, so a warm layer of clothing will not go amiss.

Summer months (June to August) in Grenoble are usually warm, with average temperatures around 17-20°C and highs reaching 25°C. At this time, you will need light clothing: T-shirts, shorts, skirts, sandals. However, even in summer, evenings can be cool, especially in the foothills, so a light jacket or cardigan will come in handy. Sunscreen and a hat are necessary for protection from the sun on clear days. Although there is less precipitation in summer, it is still worth having light rain protection with you, as the number of rainy days remains significant, especially in June and May.