Postojna Sunshine Hours by Month

In climate discussions, the hours of sunlight reveal much about a location. This page shows the total number of hours of direct sunlight per month and the average hours per day in Postojna, Notranjska, Slovenia. This average is based on long-term data collected between 1990 and 2020.

Monthly hours of sunshine

If you're visiting Postojna, timing is key. In July, you can enjoy up to 290 hours of sunshine, while the shorter days of December provide just 84 hours. The total annual amount of sun is 2117 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in Postojna. While July receives considerable daily sunshine with up to 9.7 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.8 hours of sunlight per day.

Average percent of sunshine

On average the sun shines 63% of the time during the day in July, the highest percentage of any month. November has the lowest percentage at 28%.

Postojna enjoys an average of 2117 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, Brussels, Belgium, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.

Oslo, Norway, receives approximately 1690 hours of sunshine annually.

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

September, Postojna’s wettest month, receives 120 mm (4.7 in) of rainfall and has a maximum daytime temperature of 21°C (70°F). During the driest month January you can expect a temperature of 5°C (41°F).

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