Viana do Alentejo Sunshine Hours by Month

Sunshine is key to understanding how a place experiences its seasons. This page shows the total number of hours of direct sunlight per month and the average hours per day in Viana do Alentejo, Alentejo, Portugal. Long-term data from 1990 to 2020 was used to calculate these averages.

Monthly hours of sunshine

Sunshine in Viana do Alentejo varies greatly throughout the year. The sunniest month, July, reaches an impressive 370 hours, while December, the darkest month, offers only 148 hours. The total annual amount of sun is 2932 hours.

Daily hours of sunshine

In Viana do Alentejo, 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 4.9 hours per day.

Average percent of sunshine

On average the sun shines 87% of the time during the day in July, the highest percentage of any month. January has the lowest percentage at 51%.

Viana do Alentejo enjoys an average of 2932 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

Athens, Greece, enjoys 2769 hours of sunshine each year, making it one of the sunniest destinations in the Mediterranean region.

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.

Vancouver, Canada, receives approximately 1940 hours of sunshine annually.

Adelaide, Australia, enjoys 2770 hours of sunshine annually, with long, sunny summers.

October, Viana do Alentejo’s wettest month, receives 2.5 mm (0.1 in) of rainfall and has a maximum daytime temperature of 24°C (75°F). During the driest month July you can expect a temperature of 33°C (91°F).

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