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Grignan Weather and Climate: A Comprehensive Guide

The climate in Grignan is marked by big temperature swings throughout the year. Temperatures range from very warm during the warmest months to cold in the cooler months. It receives a reasonable amount of rain/snowfall. Let's now guide you through the climate details for a complete overview.

Average maximum day and minimum night temperature

In Grignan, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a very warm 30°C in July. In January, the coolest month of the year, temperatures drop to a chilly 10°C.

At night, you can expect cooler temperatures, with averages dropping to around 2°C during this month. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

On average, Grignan receives a reasonable amount of rain/snowfall, with an annual precipitation of 844 mm. Grignan can be quite wet during November, receiving approximately 114 mm of precipitation over 11 rainy days.

In contrast July, experiences much drier conditions, with 35 mm of rainfall, spread across 6 rainy days. For more details, please visit our Grignan Precipitation page.

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

Sunshine over the year

Grignan can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.0 hours of sunlight per day. Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Data from: Montélimar, France (19 KM, 12 Miles).

Daily hours of sunshine

Data from: Montélimar, France (19 KM, 12 Miles).

Forecast for Grignan

Tue   Dec 24
9°C | 3°C
N 10 m/s
almost clear and no rain

almost clear and no rain

Wed   Dec 25
9°C | 2°C
N 7 m/s
clear and no rain

clear and no rain

Thu   Dec 26
10°C | -1°C
N 4 m/s
clear and no rain

clear and no rain

The best time of year to visit Grignan in France

During the months of May 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:
  • When is summer in Grignan?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Grignan?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Grignan?
    The coldest month is January with an average maximum temperature of 10°C.
  • Which is the wettest month in Grignan?
    November tops the wettest month list with 114 mm of rainfall.
  • Which is the driest month in Grignan?
    July is the driest month with 35 mm of precipitation.
  • Which is the sunniest month in Grignan?
    July is the sunniest month with an average of 325 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.