Istres Sunshine Hours by Month

When exploring climate, sunlight hours tell an important story. This page shows the total number of hours of direct sunlight per month and the average hours per day in Istres, Provence-Alpes-Côte d'Azur, France. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.

Monthly hours of sunshine

If you're visiting Istres, timing is key. In July, you can enjoy up to 370 hours of sunshine, while the shorter days of December provide just 136 hours. The total annual amount of sun is 2872 hours.

Daily hours of sunshine

In Istres, summer days are longer and more sunny, with daily sunshine hours peaking at 12.3 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.5 hours per day.

Average percent of sunshine

On average the sun shines 79% of the time during the day in July, the highest percentage of any month. December has the lowest percentage at 52%.

Istres vs Major Cities: Sunshine Compared

Istres enjoys an average of 2872 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

The city of Rome, Italy, experiences 2470 hours of sunshine annually, adding to its charm as a year-round tourist destination.

In contrast, Juneau, Alaska, receives only about 1523 hours of sunshine per year and is known for its very short days in winter and frequently overcast conditions.

Stockholm, Sweden, receives approximately 1907 hours of sunshine annually.

In Tokyo, Japan, the average annual sunshine is 1930 hours, with sunny periods between rainy seasons.

Related Climate Data for Istres

November, Istres’s wettest month, receives 16 mm (0.6 in) of rainfall and has a maximum daytime temperature of 17°C (63°F). During the driest month July you can expect a temperature of 32°C (90°F).

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Istres Precipitation page.