Hyannis (MA) 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 Hyannis, Massachusetts, United States of America. These values are calculated using 30 years of data (1990–2020) to ensure accuracy.

Monthly hours of sunshine

If you're visiting Hyannis, timing is key. In July, you can enjoy up to 301 hours of sunshine, while the shorter days of January provide just 147 hours. The total annual amount of sun is 2605 hours.

Daily hours of sunshine

In Hyannis, summer days are longer and more sunny, with daily sunshine hours peaking at 10.0 hours in July. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 4.9 hours per day.

Hyannis enjoys an average of 2605 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.

In contrast, Reykjavík, Iceland, receives only about 1330 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.

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

December, Hyannis’s wettest month, receives 90 mm (3.5 in) of rainfall and has a maximum daytime temperature of 8°C (46°F). During the driest month August you can expect a temperature of 26°C (79°F).

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