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Roussillon en Isere Weather and Climate: A Comprehensive Guide

The climate in Roussillon en Isere is marked by big temperature swings throughout the year. Temperatures range from warm during the warmest months to cold in the cooler months. It also experiences much rain/snowfall throughout the year. Now, let’s explore all the climate details to give you a full picture.

Average maximum day and minimum night temperature

In Roussillon en Isere, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 28°C in July. In January, the coolest month of the year, temperatures drop to a chilly 8°C.

At night, you can expect cooler temperatures, with averages dropping to around 0°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Roussillon en Isere experiences significant rain/snowfall throughout the year, averaging 1043 mm of precipitation annually. Roussillon en Isere experiences moderate seasonal variation in rainfall, with monthly averages ranging from 110 mm in October, the wettest month, and 65 mm in March, the driest month.

The mean monthly precipitation over the year, including rain, hail and snow

Sunshine over the year

Roussillon en Isere can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.2 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.5 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Saint-Étienne, France (33 KM, 21 Miles).

Daily hours of sunshine

Data from: Saint-Étienne, France (33 KM, 21 Miles).

Forecast for Roussillon en Isere

Tue   Dec 24
7°C | 2°C
N 6 m/s
almost clear and no rain

almost clear and no rain

Wed   Dec 25
8°C | -1°C
N 4 m/s
clear and no rain

clear and no rain

Thu   Dec 26
6°C | -2°C
NE 1 m/s
clear and no rain

clear and no rain

The best time of year to visit Roussillon en Isere in France

During the months of May, June and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • Which is the warmest month in Roussillon en Isere?
    July has an average maximum temperature of 28°C and is the warmest month of the year.
  • Which is the coldest month in Roussillon en Isere?
    The coldest month is January with an average maximum temperature of 8°C.
  • Which is the wettest month in Roussillon en Isere?
    October tops the wettest month list with 110 mm of rainfall.
  • Which is the driest month in Roussillon en Isere?
    March is the driest month with 65 mm of precipitation.
  • Which is the sunniest month in Roussillon en Isere?
    July is the sunniest month with an average of 277 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.