St. Charles (MO) 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 St. Charles, Missouri, United States of America. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020.
Monthly hours of sunshine
If you're visiting St. Charles, timing is key. In July, you can enjoy up to 311 hours of sunshine, while the shorter days of December provide just 128 hours. The total annual amount of sun is 2594 hours.
Daily hours of sunshine
In St. Charles, summer days are longer and more sunny, with daily sunshine hours peaking at 10.4 hours in July. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.3 hours per day.
Average percent of sunshine
On average the sun shines 68% of the time during the day in July, the highest percentage of any month. December has the lowest percentage at 44%.
St. Charles vs Major Cities: Sunshine Compared
St. Charles enjoys an average of 2594 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, Brussels, Belgium, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.
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.
Related Climate Data for St. Charles
April, St. Charles’s wettest month, receives 108 mm (4.3 in) of rainfall and has a maximum daytime temperature of 20°C (68°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 St. Charles Precipitation page.
