Barreiro Sunshine Hours by Month

Sunshine plays a big role in understanding the climate of a city. This page shows the total number of hours of direct sunlight per month and the average hours per day in Barreiro, Lisbon Region, Portugal. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.

Monthly hours of sunshine

Those who love seasonal contrasts will appreciate Barreiro. Expect long, bright days with 352 hours in July and darker periods with just 141 hours in December. The total annual amount of sun is 2828 hours.

Daily hours of sunshine

In Barreiro, summer days are longer and more sunny, with daily sunshine hours peaking at 11.7 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.7 hours per day.

Average percent of sunshine

On average the sun shines 83% of the time during the day in July, the highest percentage of any month. January has the lowest percentage at 45%.

Barreiro enjoys an average of 2828 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Seville, Spain, enjoys an impressive 2920 hours of sunshine per year, making it an ideal destination even in winter.

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.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 2520 hours of sunshine annually.

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

November, Barreiro’s wettest month, receives 5.4 mm (0.2 in) of rainfall and has a maximum daytime temperature of 19°C (66°F). During the driest month July you can expect a temperature of 27°C (81°F).

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