Herndon 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 Herndon, Virginia, United States of America. This average is based on long-term data collected between 1990 and 2020.

Monthly hours of sunshine

If you're visiting Herndon, timing is key. In June, you can enjoy up to 282 hours of sunshine, while the shorter days of December provide just 130 hours. The total annual amount of sun is 2520 hours.

Daily hours of sunshine

For those who appreciate different seasons, Herndon serves as an ideal destination. Expect longer, more sun-filled days in June with an average of 9.4 hours of sunshine daily, and embrace the darker days in December, offering only 4.3 hours of daily sunlight.

Average percent of sunshine

On average the sun shines 64% of the time during the day in June, the highest percentage of any month. December has the lowest percentage at 45%.

Herndon vs Major Cities: Sunshine Compared

Herndon enjoys an average of 2520 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

Manchester, UK, experiences just around 1420 hours of sunshine annually.

The climate in San Francisco, USA, includes 3072 hours of sunshine annually, thanks to its mild coastal weather.

Perth, Australia, enjoys 3180 hours of sunshine annually, the highest among major Australian cities.

Related Climate Data for Herndon

October, Herndon’s wettest month, receives 89 mm (3.5 in) of rainfall and has a maximum daytime temperature of 20°C (68°F). During the driest month February you can expect a temperature of 6°C (43°F).

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