Average Monthly Sunshine in Reston

The graphs on this page shows the average number of hours per month and per day that Reston receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

Seasonal sunshine in Reston varies. It peaks at 282 hours in June and drops to 130 hours in December. The total annual amount of sun is 2520 hours.

Daily hours of sunshine

Seasonal changes in sunshine hours are quite obvious in Reston. While June receives considerable daily sunshine with up to 9.4 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.3 hours of sunlight per day.

Reston’s total hours of sunshine compared to other major cities

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

In Barcelona, Spain, there are 2530 hours of sunshine annually and is a city that can be visited year-round.

Toronto, Canada, sees around 2071 hours of sunshine each year, with especially long, bright summer days.

In Shanghai, China, the annual average sunshine is 1780 hours, with cloudier weather in summer.

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

Other climate information

October, Reston’s wettest month, receives 90 mm of rainfall and has a maximum daytime temperature of 19°C. During the driest month February you can expect a temperature of 6°C.

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