Average Monthly Sunshine in Boston (MA)

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

Monthly hours of sunshine

Seasonal sunshine in Boston varies. It peaks at 301 hours in May and drops to 141 hours in December. The total annual amount of sun is 2665 hours.

Daily hours of sunshine

This means the city can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 10.0 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 4.7 hours of sunlight per day.

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

Boston enjoys an average of 2665 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.

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

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

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

Other climate information

December, Boston’s wettest month, receives 100 mm of snow/rainfall and has a maximum daytime temperature of 6°C. During the driest month September you can expect a temperature of 24°C.

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